CN111499096A - Black and odorous river water body treatment system - Google Patents
Black and odorous river water body treatment system Download PDFInfo
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- CN111499096A CN111499096A CN202010295331.8A CN202010295331A CN111499096A CN 111499096 A CN111499096 A CN 111499096A CN 202010295331 A CN202010295331 A CN 202010295331A CN 111499096 A CN111499096 A CN 111499096A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 133
- 238000006243 chemical reaction Methods 0.000 claims abstract description 153
- 238000005192 partition Methods 0.000 claims abstract description 149
- 238000000746 purification Methods 0.000 claims abstract description 24
- 239000010865 sewage Substances 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 235000012255 calcium oxide Nutrition 0.000 claims description 8
- 239000000292 calcium oxide Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000004343 Calcium peroxide Substances 0.000 claims description 6
- 235000019402 calcium peroxide Nutrition 0.000 claims description 6
- LHJQIRIGXXHNLA-UHFFFAOYSA-N calcium peroxide Chemical compound [Ca+2].[O-][O-] LHJQIRIGXXHNLA-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000010802 sludge Substances 0.000 abstract description 23
- 239000013049 sediment Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 13
- 239000001301 oxygen Substances 0.000 description 13
- 229910052760 oxygen Inorganic materials 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 235000011116 calcium hydroxide Nutrition 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 229910001448 ferrous ion Inorganic materials 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- -1 iron ions Chemical class 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 229910001437 manganese ion Inorganic materials 0.000 description 2
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
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- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 238000005868 electrolysis reaction Methods 0.000 description 1
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- 230000016615 flocculation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
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- 238000007726 management method Methods 0.000 description 1
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- 230000001706 oxygenating effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
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- 238000005086 pumping Methods 0.000 description 1
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- 150000003384 small molecules Chemical class 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46176—Galvanic cells
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a black and odorous river water body treatment system, which comprises: first partition wall and second partition wall that the first side bank body that is close to black and odorous river course set gradually, the third partition wall and fourth partition wall that the second side bank body that is close to black and odorous river course set gradually, sewage purification device and the filtration formula conveyer belt of setting in the water at river course center, sewage purification device includes: funnel shaped water inlet, vertical connecting pipe and purifying unit, purifying unit includes: the anaerobic reactor comprises a horizontal first anaerobic reaction tube, a vertical first inverted U-shaped reaction tube, a horizontal second anaerobic reaction tube, a vertical second inverted U-shaped reaction tube and a horizontal aerobic reaction tube which are connected in sequence. When the system is operated, the river sediment of the black and odorous water body can be cleaned, the continuous sludge of the river sediment to the water body is avoided, meanwhile, an anaerobic-redox-anaerobic-inorganic-aerobic mode is comprehensively used, the water body is deeply purified, the sediment environment is thoroughly changed, the operation cost is low, and no secondary pollution is caused.
Description
Technical Field
The invention belongs to the technical field of water treatment for environmental protection, and particularly relates to a black and odorous river water body treatment system.
Background
Along with the rapid development of economy in China, the scale of cities is rapidly expanded, the discharge amount of industrial wastewater and domestic sewage is increased day by day, a large amount of sewage is discharged into the water body of an urban river, the concentration of organic and inorganic pollutants seriously exceeds the standard, and the seasonal or perennial black and odorous river water body phenomenon appears. The large area of the black and odorous river water body causes the landscape effect of the river to be poor, the ecological environment problem is increasingly highlighted, and meanwhile, the water quality is reduced, so that the sewage treatment cost is increased, and the urban development is seriously influenced. Therefore, the significance of treating the black and odorous river water body is great.
At present, the technology for treating the black and odorous river water is numerous, and the technical principle and the application form are different. The more common treatment method for the black and odorous river water body comprises the following four methods:
the first is a water changing method, which is to completely pump out the water in the river and then introduce clean water. The method needs too large amount of water, and after water is changed, the bottom mud is not fixed, so that the situation that the bottom mud pollutes the water body again easily occurs, and the water body is rapidly deteriorated again.
The second method is a method of adding a medicament, generally, a flocculating agent is added, the flocculating agent can precipitate suspended matters in the black and odorous water body, the water is clear in a short time, however, pollutants obtained by flocculation and precipitation still exist in bottom mud, and the pollutants can cause the repeated black and odorous water body quickly.
The third is an aeration method, which is to introduce air or oxygen into the black and odorous river water body to increase the oxygen content in the water body, and when the method is used for treating the black and odorous river water body, a large amount of oxygen-containing gas needs to be introduced, so that the scale is large, and meanwhile, the nitrogen and phosphorus concentration in the water body cannot be reduced by adopting the method, so that the problem of black and odorous river water body cannot be fundamentally solved.
The fourth method is a biological ecological management method, wherein aquatic plants are planted to absorb nitrogen and phosphorus in the black and odorous river water body, but in the method, oxygen generated by photosynthesis of herbaceous plants is released into the air through blades, so that the problem of low dissolved oxygen in the black and odorous river water body is difficult to solve, the growth of organisms is slow, and the treatment effect is influenced by seasons, so that the treatment effect is not obvious, and the treatment efficiency is low.
In conclusion, the treatment of the urban black and odorous river water is a complex and huge system engineering, and a single water purification or sludge remediation technology cannot achieve an ideal effect.
Disclosure of Invention
In view of the above, the present invention provides a black and odorous river water treatment system, which can clean river sediment of black and odorous water to avoid continuous sludge of the river sediment to the water, and simultaneously, comprehensively uses an anaerobic-redox-anaerobic-inorganic-aerobic mode to deeply purify the water, thoroughly changes the sediment environment, and has the advantages of low operation cost and no secondary pollution.
A black and odorous river water body governing system includes:
(1) the first partition wall and the second partition wall are sequentially arranged close to a first side bank body of the black and odorous river channel, the distance between the first partition wall and the first side bank body is 0.5-2 m, the distance between the second partition wall and the first partition wall is 0.5-2 m, a long and narrow ditch with two closed ends is formed between the first partition wall and the first side bank body, and a long and narrow ditch with two closed ends is formed between the first partition wall and the second partition wall; the height of the second partition wall is smaller than that of the first partition wall, the top of the first partition wall is flush with the top of the first side bank body, a first screen is arranged between the top of the first partition wall and the top of the first side bank body, the length of the first screen is 1/2-3/4 of the length of the first partition wall, and quick lime is placed in the first screen;
(2) the third partition wall and the fourth partition wall are sequentially arranged close to the second side bank body of the black and odorous river channel, the distance between the third partition wall and the second side bank body is 0.5-2 m, the distance between the fourth partition wall and the third partition wall is 0.5-2 m, a long and narrow channel with two closed ends is formed between the third partition wall and the second side bank body, and a long and narrow channel with two closed ends is formed between the third partition wall and the fourth partition wall; the height of the fourth partition wall is smaller than that of the third partition wall, the top of the third partition wall is flush with that of the second side bank body, a second screen is arranged between the top of the third partition wall and the top of the second side bank body, the length of the second screen is 1/2-3/4 of the length of the third partition wall, and quick lime is placed in the second screen;
(3) the sewage purification device who sets up in the water at black and odorous river course center also is located between second partition wall and the fourth partition wall, and sewage purification device includes: funnel shaped water inlet, vertical connecting pipe and purifying unit, purifying unit includes: the anaerobic reactor comprises a horizontal first anaerobic reaction pipe, a vertical first inverted U-shaped reaction pipe, a horizontal second anaerobic reaction pipe, a vertical second inverted U-shaped reaction pipe and a horizontal aerobic reaction pipe which are connected in sequence; the bottom end of the water inlet is connected with one end of a connecting pipe, and the other end of the connecting pipe is connected with the first anaerobic reaction pipe; anaerobic fillers are arranged in the first anaerobic reaction tube, mixed fillers are arranged in the first inverted U-shaped reaction tube, the mixed fillers are mixed fillers of iron chips, activated carbon and manganite particles, anaerobic fillers are arranged in the second anaerobic reaction tube, calcium peroxide fillers are arranged in the second inverted U-shaped reaction tube, and aerobic fillers are arranged in the aerobic reaction tube; the sum of the lengths of the first anaerobic reaction tube and the second anaerobic reaction tube is twice of the length of the aerobic reaction tube;
(4) the filtering type conveying belt is erected between the water inlet and the first partition wall, and the filtering type conveying belt is erected at the position of the first partition wall and is far away from the first screen; or/and the filtering type conveying belt is erected between the water inlet and the third partition wall, and the filtering type conveying belt is erected at the position of the third partition wall and is far away from the second screen;
the first partition wall and the third partition wall are permeable partition walls, and can allow water to permeate from the walls of the partition walls.
In some embodiments of the invention, the first inverted U-shaped reaction tube comprises: the device comprises a first vertical pipe, a second vertical pipe and a first arc-shaped connecting pipe, wherein the first vertical pipe and the second vertical pipe are located on two sides, the first arc-shaped connecting pipe is used for connecting the first vertical pipe and the second vertical pipe, the first vertical pipe is connected with a first anaerobic reaction pipe, the second vertical pipe is connected with a second anaerobic reaction pipe, a mixed material of iron chips and activated carbon is filled in the first vertical pipe, and iron chips and manganite particles are filled in the second vertical pipe.
In some embodiments of the invention, the second inverted U-shaped reaction tube comprises: the anaerobic reactor comprises a third vertical pipe, a fourth vertical pipe and a second arc-shaped connecting pipe, wherein the third vertical pipe and the fourth vertical pipe are positioned on two sides of the anaerobic reactor, the second arc-shaped connecting pipe is used for connecting the third vertical pipe and the fourth vertical pipe, the third vertical pipe is connected with a second anaerobic reaction pipe, and the fourth vertical pipe is connected with an aerobic reaction pipe.
In some embodiments of the present invention, the first inverted U-shaped reaction tube has a height 3 to 4 times its diameter, and the second inverted U-shaped reaction tube has a height 3 to 4 times its diameter.
In some embodiments of the invention, the diameters of the first and second inverted U-shaped reaction tubes are equal to the diameters of the first and second anaerobic reaction tubes and the aerobic reaction tube.
In some embodiments of the invention, the first inverted U-shaped reaction tube is provided with a viewing cap at the top.
In some embodiments of the invention, the second inverted U-shaped reaction tube is provided with a viewing cap at the top.
In some embodiments of the invention, a first sieve plate is arranged in the first inverted U-shaped reaction tube and is positioned at the lower part of the vertical tubes at two sides.
In some embodiments of the invention, a second sieve plate is arranged in the second inverted U-shaped reaction tube and is positioned at the lower part of the vertical tubes at two sides.
In some embodiments of the invention, the anaerobic filler is a rope filler.
In some embodiments of the invention, the aerobic filler is a rope filler.
Compared with the prior art, the invention has the following beneficial technical effects:
the black and odorous river water body treatment system disclosed by the invention not only cleans the river bottom sludge of the black and odorous water body and avoids continuous sludge of the river bottom sludge to the water body, but also comprehensively uses an anaerobic-redox-anaerobic-inorganic-aerobic mode to carry out efficient degradation treatment on organic matters, better realize denitrification and dephosphorization, deeply purify the water body, thoroughly change the bottom sludge environment and promote the propagation and growth of microorganisms and aquatic animals in the water body, so that the recovery of an ecological system can be accelerated, the operation cost is low, and no secondary pollution is caused. When the system of the invention is operated, the manual participation is not needed, and the supplement of the filler is observed regularly.
These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the appended claims, wherein like reference numerals refer to like parts throughout the several views, and wherein like reference numerals refer to like parts throughout the several views.
Drawings
Fig. 1 is a schematic front view of a black and odorous water body treatment system of the present invention.
Fig. 2 is a schematic top view of a black and odorous water body treatment system of the present invention.
Fig. 3 is a schematic side view of a black and odorous water body treatment system of the present invention.
Fig. 4 is a schematic structural view of the sewage purifying apparatus of fig. 1.
FIG. 5 is a schematic view showing the structure of the first inverted U-shaped reaction tube of FIG. 1.
Fig. 6 is another structural schematic diagram of the sewage unit.
Fig. 7 is a schematic view of still another structure of the sewage unit.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings and examples to more clearly understand the technical contents of the present invention.
As shown in fig. 1 to 4, in an embodiment of the present invention, a black and odorous river water treatment system includes:
(1) the first partition wall 6-1 and the second partition wall 6-2 (the first partition wall 6-1 and the second partition wall 6-2 are parallel to each other) are sequentially arranged close to a first side bank body of the black and odorous river channel, the distance between the first partition wall 6-1 and the first side bank body is 0.5-2 m, the distance between the second partition wall 6-2 and the first partition wall 6-1 is 0.5-2 m, a long and narrow ditch with two closed ends is formed between the first partition wall 6-1 and the first side bank body, and a long and narrow ditch with two closed ends is formed between the first partition wall 6-1 and the second partition wall 6-2; the height of the second partition wall 6-2 is smaller than that of the first partition wall 6-1, the top of the first partition wall 6-1 is flush with the top of the first side bank body (the top of the first partition wall is positioned on the same horizontal line), a first screen 8-1 is arranged between the top of the first partition wall 6-1 and the top of the first side bank body, the length of the first screen 8-1 is 1/2-3/4 of the length of the first partition wall 6-1, and quicklime blocks 9-1 are placed in the first screen 8-1;
(2) a third partition wall 7-1 and a fourth partition wall 7-2 (the second side bank body, the third partition wall 7-1 and the fourth partition wall 7-2 are parallel to each other) are sequentially arranged on a second side bank body close to the black and odorous river channel, the distance between the third partition wall 7-1 and the second side bank body is 0.5-2 m, the distance between the fourth partition wall 7-2 and the third partition wall 7-1 is 0.5-2 m, a long and narrow ditch with two closed ends is formed between the third partition wall 7-1 and the second side bank body, and a long and narrow ditch with two closed ends is formed between the third partition wall 7-1 and the fourth partition wall 7-2; the height of the fourth partition wall 7-2 is smaller than that of the third partition wall 7-1, the top of the third partition wall 7-1 is flush with that of the second side bank body (the top of the third partition wall 7-1 is positioned on the same horizontal line), a second screen 8-2 is arranged between the top of the third partition wall 7-1 and the top of the second side bank body, the length of the second screen 8-2 is 1/2-3/4 of the length of the third partition wall 7-1, and quicklime blocks 9-2 are placed in the second screen 8-2;
(3) the sewage purification device who sets up in the water at black and odorous river course center also is located between second partition wall 6-2 and fourth partition wall 7-2, and sewage purification device includes: funnel-shaped water inlet 1, vertical connecting pipe 2 and purification unit 3, purification unit 3 includes: a horizontal first anaerobic reaction tube 11-1, a vertical first inverted U-shaped reaction tube 4, a horizontal second anaerobic reaction tube 11-2, a vertical second inverted U-shaped reaction tube 5 and a horizontal aerobic reaction tube 12 which are connected in sequence; the bottom end of the water inlet 1 is connected with one end of the connecting pipe 2, the other end of the connecting pipe 2 is connected with the first anaerobic reaction pipe 11-1, anaerobic fillers are arranged in the first anaerobic reaction pipe 11-1, mixed fillers are arranged in the first inverted U-shaped reaction pipe 4, the mixed fillers refer to mixed fillers of scrap iron, activated carbon and manganite particles, anaerobic fillers are arranged in the second anaerobic reaction pipe 11-2, calcium peroxide fillers are arranged in the second inverted U-shaped reaction pipe 5, and aerobic fillers are arranged in the aerobic reaction pipe 12; the sum of the lengths of the first anaerobic reaction tube 11-1 and the second anaerobic reaction tube 11-2 is twice of the length of the aerobic reaction tube 12;
(4) the filter type conveyor belt 10 is erected between the water inlet 1 and the first partition wall 6-1, and the filter type conveyor belt 10 is erected at the position of the first partition wall 6-1 and is far away from the first screen 8-1; or/and the filtering type conveyor belt 10 is erected between the water inlet 1 and the third partition wall 7-1, and the filtering type conveyor belt 10 is erected at the position of the third partition wall 7-1 and is far away from the second screen 8-2.
The first partition wall 6-1 and the third partition wall 7-1 in the above system are permeable partition walls, which allow water to permeate from the walls of the partition walls.
The black and odorous river water body treatment system generally needs to be matched with a water suction pump for use, and the working principle is as follows:
firstly, black odorous water (comprising black odorous water between a first partition wall 6-1 and the first side bank of a black odorous river and black odorous water between a second partition wall 6-2 and the first partition wall 6-1) between the second partition wall 6-2 and a fourth partition wall 7-2 is pumped by a water pump to between the second partition wall 6-2 and the fourth partition wall 7-2, black odorous water (comprising black odorous water between the third partition wall 7-1 and the second side bank of the black odorous river and black odorous water between the fourth partition wall 7-2 and the third partition wall 7-1) between the second partition wall 6-2 and the fourth partition wall 7-2, a filter conveyor belt 10 and a top opening of a water inlet 1 are arranged above the water surface, other parts of the sewage purification device are all arranged below the water surface, and the purification unit 3 is arranged in the sludge at the river bottom.
Then, a water pump is used for pumping black odorous water in a water body between the second partition wall 6-2 and the fourth partition wall 7-2 to one end, close to a top opening of the water inlet 1, of the filter type conveyor belt 10, water filtered by the filter type conveyor belt 10 flows into the top opening of the water inlet 1, enters the connecting pipe 2, sequentially passes through the first anaerobic reaction pipe 11-1, the first inverted U-shaped reaction pipe 4, the second anaerobic reaction pipe 11-2, the second inverted U-shaped reaction pipe 5 and the aerobic reaction pipe 12, and is respectively treated by the anaerobic filler, the mixed filler, the anaerobic filler, the calcium peroxide filler and the aerobic filler, and nitrogen, phosphorus and organic pollutants in the black odorous water are degraded; when the filter type conveyor belt 10 is arranged between the water inlet 1 and the first partition wall 6-1, sludge filtered by the filter type conveyor belt 10 is conveyed to a position between the first partition wall 6-1 and the first side bank body of the black and odorous river channel by the filter type conveyor belt 10 and is accumulated, when the sludge is accumulated to a certain height, the sludge can contact quicklime 9-1 placed in the first screen mesh 8-1, the quicklime 9-1 and water in the sludge react to generate powdered slaked lime, and the slaked lime falls through the screen mesh of the first screen mesh 8-1, is mixed with the sludge and is precipitated; as the amount of sludge increases, water in the sludge permeates from the wall body of the first partition wall 6-1 into the water body between the first partition wall 6-1 and the second partition wall 6-2, and finally overflows via the second partition wall 6-2 having a lower height into the water body between the second partition wall 6-2 and the fourth partition wall 7-2. After a long time, the mixture of hydrated lime and sludge can form a firmer revetment and be connected with the first side bank body of the black and odorous river channel.
After the ditch between the first side bank body of the black and odorous river channel and the first partition wall 6-1 is filled with sludge, the filter type conveyor belt 10 can be arranged between the top opening of the water inlet 1 and the third partition wall 7-1, the processes are repeated, the sludge is accumulated between the third partition wall 7-1 and the second side bank body of the black and odorous river channel to form a firmer revetment which is connected with the second side bank body of the black and odorous river channel into a whole until the ditch between the second side bank body of the black and odorous river channel and the third partition wall 7-1 is filled with the sludge.
In the above-mentioned working process, generally establish the intake of suction pump on river bottom mud surface to the position is constantly changed, after a mud was taken out, just the quick adjustment position, hopefully accomplish the comprehensive clearance of river bottom mud gradually.
Of course, in order to quickly restore the river, two filter conveyor belts 10 may be provided, which are respectively erected between (1) the top opening of the water inlet 1 and the first partition wall 6-1 and (2) the top opening of the water inlet 1 and the third partition wall 7-1, and at the same time, the pipes of the reaction pipes constituting the purification unit 3 may be lengthened.
If the river course is very long or the pollution is very serious, the river course can be manually partitioned along the flow direction of the river course, and the black and odorous river course water body treatment systems are respectively arranged in each closed partition, so that the situation is more suitable for seasonal centralized treatment and the river course needs to be temporarily closed.
In the system, on one hand, the black and odorous water body is extracted and sent to the filtering type conveyor belt 10 for filtering, and the filtered sludge is sent to a space between the partition wall and the side bank to form a revetment, so that the sludge at the bottom of the black and odorous river channel is cleaned, and the continuous pollution of the sludge at the bottom of the river to the water body is avoided; on the other hand, the black and odorous water filtered by the filter conveyor belt 10 falls downwards from the water inlet 1 above the water surface in the connecting pipe 2 to the reaction pipe which is positioned at the river bottom and forms the purification unit 3, which is equivalent to the process of oxygenating the black and odorous water, a small amount of oxygen is dissolved in the black and odorous water, anoxic oxidation is carried out, ammonia nitrogen is nitrosated or nitrified, but the dissolved oxygen is quickly consumed due to low oxygen content, the dissolved oxygen enters an anaerobic process, hydrolysis is carried out in the first anaerobic reaction pipe 11-1, organic matters are hydrolyzed into small molecules, and the nitrosated or nitrified ammonia nitrogen is added to the denitrification process to generate nitrogen; when water further flows upwards through the first inverted U-shaped reaction tube 4 filled with the mixed filler, organic matters are decomposed by iron carbon and oxidized by manganite, and simultaneously, a small amount of organic acid generated by hydrolysis in the previous stage reacts with iron to play a role in adjusting the pH value; when the water further flows to the second anaerobic reaction tube 11-2, the anaerobic action is continued; then, water flows through the second inverted U-shaped reaction tube 5, and calcium peroxide and water generate oxygen; the water containing oxygen flows into the aerobic reaction tube 12 for aerobic action, and meanwhile, the calcium ions can precipitate phosphate radicals in the polluted water body. Therefore, after the treatment of the purification unit 3, the pollutants such as nitrogen, phosphorus, organic matters and the like in the black and odorous water are consumed, and the water body is purified.
In order to more clearly illustrate the structure of the inverted U-shaped reaction tube and the arrangement of the first inverted U-shaped reaction tube 4, fig. 5 shows a schematic structural view of the first inverted U-shaped reaction tube 4.
As shown in fig. 5, the first inverted U-shaped reaction tube 4 includes: the first arc-shaped connecting pipe is used for connecting the first vertical pipe and the second vertical pipe; wherein, the first vertical pipe is connected with (the tail end or the outlet end of) the first anaerobic reaction pipe 11-1, the second vertical pipe is connected with (the head end or the inlet end of) the second anaerobic reaction pipe 11-2, the mixed material 13 of iron filings and active carbon is filled in the first vertical pipe, and the iron filings 17 and the manganite particles 18 are filled in the second vertical pipe.
When water flows from the first anaerobic reaction tube 11-1 to the first reaction tube 4, the water firstly enters the first vertical tube, under the action of a mixed material 13 of iron chips and activated carbon, organic matters are subjected to iron-carbon micro-electrolysis, the iron chips are oxidized into iron ions and ferrous ions, the structure of the organic matters in the water is destroyed, the water enters the second vertical tube through the first arc-shaped connecting tube, the iron ions and the iron chips 17 react to form the ferrous ions, the ferrous ions react with manganese dioxide on the surface of the manganite particles 18 to form unstable trivalent manganese ions, and the trivalent manganese ions rapidly react with the organic matters to further oxidize the organic matters.
Of course, for the convenience of observation or for the consideration of adding or cleaning the packing, a viewing cover 15 may be provided on the top of the first inverted U-shaped reaction tube 4, as shown in fig. 5, and the packing may be added or cleaned after the viewing cover 15 is opened.
In addition, in order to prevent the loss of the packing, a first sieve plate 16 may be further provided in the first inverted U-shaped reaction tube 4, the first sieve plate 16 being located at the lower portion of the vertical tubes (the first vertical tube and the second vertical tube) on both sides, as shown in fig. 5.
The second inverted U-shaped reaction tube 5 has a similar structure to the first inverted U-shaped reaction tube 4, and also includes: a third vertical pipe and a fourth vertical pipe which are positioned at two sides, and a second arc-shaped connecting pipe which is used for connecting the third vertical pipe and the fourth vertical pipe, wherein the third vertical pipe is connected with (the tail end or the outlet end of) the second anaerobic reaction pipe 11-2, and the fourth vertical pipe is connected with (the head end or the inlet end of) the aerobic reaction pipe 12. Unlike the first inverted U-shaped reaction tube 4, the packing in the second inverted U-shaped reaction tube 5 is calcium peroxide packing.
For the same consideration, an observation cover can be arranged on the top of the second inverted U-shaped reaction tube 5, and after the observation cover is opened, the filler can be added or cleaned; a second sieve plate may be provided in the second inverted U-shaped reaction tube 5, the second sieve plate being located at lower portions of the vertical tubes (third vertical tube and fourth vertical tube) on both sides.
In addition, when the system is used, the water inlet 1 is arranged above the water surface, and each reaction tube of the purification unit is embedded in the bottom mud of the river (the bottom of the horizontal reaction tube and the bottom of the vertical reaction tube are embedded in the bottom mud of the river), so that a relatively large height difference still exists between the water inlet 1 and the top of the first inverted-U-shaped reaction tube 4 (or the second inverted-U-shaped reaction tube 5). In order to ensure a certain height drop and fully perform the reaction in the tube, the height of the first inverted-U-shaped reaction tube 4 is preferably set to be 3-4 times of the diameter of the first inverted-U-shaped reaction tube, and the height of the second inverted-U-shaped reaction tube 5 is preferably set to be 3-4 times of the diameter of the second inverted-U-shaped reaction tube. The diameters of the first inverted U-shaped reaction tube 4 and the second inverted U-shaped reaction tube 5 can be equal to the diameters of the first anaerobic reaction tube 11-1, the second anaerobic reaction tube 11-2 and the aerobic reaction tube 12.
Further, the respective reaction tubes constituting the purification unit 3 may be arranged in the manner as shown in FIG. 3, the first anaerobic reaction tube 11-1, the second anaerobic reaction tube 11-2 and the aerobic reaction tube 12 are parallel to each other, the first inverted U-shaped reaction tube 4 and the second inverted U-shaped reaction tube 5 are parallel to each other, the first anaerobic reaction tube 11-1, the second anaerobic reaction tube 11-2 and the aerobic reaction tube 12 have the same length, and the inlet end of the first anaerobic reaction tube 11-1, the outlet end of the second anaerobic reaction tube 11-2 and the inlet end of the aerobic reaction tube 12 are aligned, so that the volume occupied by the purification unit 3 is small.
Alternatively, each of the reaction tubes constituting the purification unit 3 may be arranged in the following manner: the first anaerobic reaction tube 11-1, the second anaerobic reaction tube 11-2 and the aerobic reaction tube 12 are positioned on a straight line, as shown in fig. 6. Still alternatively, each of the reaction tubes constituting the purification unit 3 may be arranged in the following manner: the first anaerobic reaction tube 11-1, the second anaerobic reaction tube 11-2 and the aerobic reaction tube 12 are parallel to each other, the first inverted U-shaped reaction tube 4 and the second inverted U-shaped reaction tube 5 are parallel to each other, the outlet end of the first anaerobic reaction tube 11-1 is aligned with the inlet end of the second anaerobic reaction tube 11-2, and the outlet end of the second anaerobic reaction tube 11-2 is aligned with only the inlet end of the aerobic reaction tube 12, as shown in fig. 7. The purification unit shown in fig. 6 or 7 is more suitable for use in longer channels.
In the system, the sieve pore of the first sieve 8-1 can be set to be 0.5-3 cm, and the sieve pore of the second sieve 8-2 can be set to be 0.5-3 cm.
In order to make the anaerobic fillers in each anaerobic reaction tube fully play roles and facilitate replacement when needed, the anaerobic fillers used in the system are preferably rope-shaped fillers.
In order to make the aerobic filler in the aerobic reaction tube fully play a role and facilitate replacement when needed, the aerobic filler used in the system is preferably rope-shaped.
In a system simulation experiment (filter type conveyor belts are erected on two sides of a bank in turn), the transparency of the black and odorous river water to be treated is 8cm, the dissolved oxygen is 0.3 mg/L, and the ammonia nitrogen is 18 mg/L, after the treatment is finished, the transparency is 25cm, the dissolved oxygen is 3.5 mg/L, and the ammonia nitrogen is 0.5 mg/L.
Therefore, the black and odorous river water body treatment system not only cleans the river sediment of the black and odorous water body and avoids the continuous sludge of the river sediment to the water body, but also comprehensively uses an anaerobic-redox-anaerobic-inorganic-aerobic mode to carry out efficient degradation treatment on organic matters, better realizes denitrification and dephosphorization, deeply purifies the water body, thoroughly changes the sediment environment and promotes the propagation and growth of microorganisms and aquatic animals in the water body, thereby accelerating the recovery of an ecological system, having low operation cost and no secondary pollution. When the system of the invention is operated, the manual participation is not needed, and the supplement of the filler is observed regularly.
It will thus be seen that the objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments, and the embodiments may be modified without departing from the principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the claims. Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a black and odorous river water body governing system which characterized in that includes:
(1) the device comprises a first partition wall and a second partition wall, wherein the first partition wall and the second partition wall are sequentially arranged close to a first side bank body of a black and odorous river channel, the distance between the first partition wall and the first side bank body is 0.5-2 m, the distance between the second partition wall and the first partition wall is 0.5-2 m, a long and narrow ditch with two closed ends is formed between the first partition wall and the first side bank body, and a long and narrow ditch with two closed ends is formed between the first partition wall and the second partition wall; the height of the second partition wall is smaller than that of the first partition wall, the top of the first partition wall is flush with that of the first side bank body, a first screen is arranged between the top of the first partition wall and the top of the first side bank body, the length of the first screen is 1/2-3/4 of the length of the first partition wall, and quick lime is placed in the first screen;
(2) the third partition wall and the fourth partition wall are sequentially arranged close to a second side bank body of the black and odorous river channel, the distance between the third partition wall and the second side bank body is 0.5-2 m, the distance between the fourth partition wall and the third partition wall is 0.5-2 m, a long and narrow ditch with two closed ends is formed between the third partition wall and the second side bank body, and a long and narrow ditch with two closed ends is formed between the third partition wall and the fourth partition wall; the height of the fourth partition wall is smaller than that of the third partition wall, the top of the third partition wall is flush with that of the second side bank body, a second screen is arranged between the top of the third partition wall and the top of the second side bank body, the length of the second screen is 1/2-3/4 of that of the third partition wall, and quick lime is placed in the second screen;
(3) the sewage purification device who sets up in the water at black and odorous river course center also is located between second partition wall and the fourth partition wall, sewage purification device includes: funnel shaped water inlet, vertical connecting pipe and purification unit, the purification unit includes: the anaerobic reactor comprises a horizontal first anaerobic reaction pipe, a vertical first inverted U-shaped reaction pipe, a horizontal second anaerobic reaction pipe, a vertical second inverted U-shaped reaction pipe and a horizontal aerobic reaction pipe which are connected in sequence; the bottom end of the water inlet is connected with one end of the connecting pipe, and the other end of the connecting pipe is connected with the first anaerobic reaction pipe; anaerobic fillers are arranged in the first anaerobic reaction tube, mixed fillers are arranged in the first inverted U-shaped reaction tube, the mixed fillers are mixed fillers of iron filings, activated carbon and manganite particles, anaerobic fillers are arranged in the second anaerobic reaction tube, calcium peroxide fillers are arranged in the second inverted U-shaped reaction tube, and aerobic fillers are arranged in the aerobic reaction tube; the sum of the lengths of the first anaerobic reaction tube and the second anaerobic reaction tube is twice of the length of the aerobic reaction tube;
(4) the filtering type conveying belt is erected between the water inlet and the first partition wall, and the filtering type conveying belt is erected at the position of the first partition wall and is far away from the first screen; or/and the filtering type conveying belt is erected between the water inlet and a third partition wall, and the filtering type conveying belt is erected at the position of the third partition wall and is far away from the second screen;
and the first partition wall and the third partition wall are permeable partition walls.
2. The black and odorous watercourse water treatment system of claim 1, wherein the first inverted U-shaped reaction tube comprises: the device comprises a first vertical pipe, a second vertical pipe and a first arc-shaped connecting pipe, wherein the first vertical pipe and the second vertical pipe are located on two sides, the first arc-shaped connecting pipe is used for being connected with the first vertical pipe and the second vertical pipe, the first vertical pipe is connected with a first anaerobic reaction pipe, the second vertical pipe is connected with a second anaerobic reaction pipe, the first vertical pipe is filled with a mixed material of iron chips and activated carbon, and the second vertical pipe is filled with iron chips and manganite particles.
3. The black and odorous watercourse water treatment system of claim 1, wherein the second inverted U-shaped reaction tube comprises: the anaerobic reactor comprises a third vertical pipe, a fourth vertical pipe and a second arc-shaped connecting pipe, wherein the third vertical pipe and the fourth vertical pipe are positioned on two sides of the anaerobic reactor, the second arc-shaped connecting pipe is used for connecting the third vertical pipe and the fourth vertical pipe, the third vertical pipe is connected with a second anaerobic reaction pipe, and the fourth vertical pipe is connected with an aerobic reaction pipe.
4. The black and odorous watercourse water treatment system of claim 1, wherein the height of the first inverted U-shaped reaction tube is 3-4 times the diameter of the first inverted U-shaped reaction tube, and the height of the second inverted U-shaped reaction tube is 3-4 times the diameter of the second inverted U-shaped reaction tube.
5. The black and odorous watercourse water treatment system of claim 1, wherein the diameters of the first and second inverted U-shaped reaction tubes are equal to the diameters of the first and second anaerobic reaction tubes and the aerobic reaction tube.
6. The black and odorous watercourse water treatment system of claim 1, wherein the top of the first inverted U-shaped reaction tube and the top of the second inverted U-shaped reaction tube are respectively provided with an observation cover.
7. The black and odorous watercourse water treatment system of claim 1, wherein a first sieve plate is arranged in the first inverted U-shaped reaction tube, and the first sieve plate is positioned at the lower part of the vertical tubes at two sides.
8. The black and odorous watercourse water treatment system of claim 1, wherein a second sieve plate is arranged in the second inverted U-shaped reaction tube, and the second sieve plate is positioned at the lower part of the vertical tubes at both sides.
9. The black and odorous watercourse water treatment system of claim 1, wherein the anaerobic packing is rope packing.
10. The black and odorous watercourse water treatment system of claim 1, wherein the aerobic filler is a rope-like filler.
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