CN110372106B - Comprehensive treatment method for mixed sewage - Google Patents
Comprehensive treatment method for mixed sewage Download PDFInfo
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- CN110372106B CN110372106B CN201910662394.XA CN201910662394A CN110372106B CN 110372106 B CN110372106 B CN 110372106B CN 201910662394 A CN201910662394 A CN 201910662394A CN 110372106 B CN110372106 B CN 110372106B
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/004—Sludge detoxification
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F7/00—Aeration of stretches of water
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention belongs to the technical field of river channel treatment, and particularly relates to a comprehensive treatment method for mixed sewage, which comprises a box body, an air storage tank, an air pump and a spiral pipeline; the box body can sink to the bottom of a river channel under the action of gravity of the weight and is contacted with sludge, the matching between the air pump and the air storage tank is adjusted, and the gas content in the air storage tank enables the box body to float upwards or sink; the sludge suction pipe can absorb sludge to the bottom of the river channel under the action of the water pump, the absorbed sludge is discharged to the ground through the sludge suction pipe, the spiral pipeline and the sludge discharge pipe, the sludge can become loose under the action of centrifugal force when the sludge passes through the spiral pipeline, and the possibility of blocking the pipeline can be reduced due to the movement of the loose sludge in the pipeline; under the cooperation of the weight, the gas storage tank, the gas pump and the spiral pipeline, the sludge in the deep layer of the river channel can be cleaned, the sludge treatment efficiency is improved, meanwhile, the sludge in the pipeline becomes loose and is not easy to block the pipeline, and the stability of the sludge cleaning device is improved.
Description
Technical Field
The invention belongs to the technical field of river treatment, and particularly relates to a comprehensive treatment method for mixed sewage.
Background
Along with the continuous improvement of the urbanization rate of China, the discharge amount of urban sewage is greatly increased, and the load of pollution acceptance of urban surface water bodies is also increased more and more, so that the surface water quality is generally between the V class and the inferior V class of the national surface water quality standard; the river channel has the defects of small water environment capacity, poor water body self-purification capacity and the like, so that the oxygen supply and consumption of the water body are unbalanced, the water body is in an anoxic or even anaerobic state, the contents of COD, BOD, NHSN and the like in the water body are too high, and the organic matters in the water body are subjected to anaerobic decomposition to generate black and odorous substances, so that the whole ecological system is in crisis, the ecological environment is seriously influenced, and the life of urban residents is greatly influenced.
At present, the treatment method of the black and odorous river sewage mainly comprises a physical method, a chemical method, a biological-ecological composite method and the like; physical remediation usually adopts a physical method to remove pollutants in the river, such as river sludge cleaning, mechanical blue algae removal and the like; the physical method is simple to operate and takes effect quickly, but cannot fundamentally solve the problem of river water pollution; the chemical method is mainly to purify river water by a chemical method, and the common methods mainly comprise chemical agent flocculation, agent algae removal and the like; the chemical method has good effect, but some residual chemical agents can cause secondary pollution to river water; the biological-ecological method mainly adopts a method of combining microbial strains, aquatic organisms and the like to purify water quality, and organic matters and the like in sewage are degraded and removed under the actions of adsorption, absorption and conversion of the microorganisms and the aquatic organisms, so that the aims of reconstructing an ecological system and improving the water quality are fulfilled; compared with physical methods and chemical methods, the biological-ecological method has the advantages of good treatment effect, small environmental side effect and the like, and becomes a main method for treating the river course in recent years; however, because the water quality and water quantity of the urban river channel change greatly, the traditional biological-ecological method has the problems of slow effect, easy influence by seasons and climate and the like, so that the research and development of a novel, efficient and stable river channel water treatment method and system become the key of the purification and restoration of the urban river channel, especially the black and odorous river channel; in view of the above, the invention provides a comprehensive treatment method for mixed sewage, which treats the problem of river pollution by cleaning river sludge and microorganisms.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a comprehensive treatment method of mixed sewage, which treats river pollution by cleaning polluted river sludge and reducing the content of river microorganisms.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a comprehensive treatment method of mixed sewage, which comprises the following steps:
s1: hanging a biological slow release bag at the sewage outlet; placing an oil absorption felt at a sewage discharge port of domestic sewage, forming a biological array by adopting an artificial planting ecological base mode to supplement microorganisms, soaking a bacterial liquid in the ecological base to provide a carrier for the microorganisms, enabling biological flora in the branch gushes to form a biological film on the surface of the ecological base soaked with the bacterial liquid through natural enrichment of organisms, extracting pollutants in the sewage through the life activities of the microorganisms, absorbing the pollutants as nutrition, assimilating, decomposing and removing pollution impurities in the sewage, and pretreating river pollution from the source;
s2: after pretreatment of river pollution from a source in S1, sludge at the bottom of a polluted river reach is pumped out by using a sludge cleaning device, the sludge cleaning device enables the device to sink to the bottom of the river through a weight, and river bottom sludge is pumped to the ground by using a water pump;
s3: after river sludge is cleaned in S2, the microbial agent is placed in a river channel and decomposed into nitrogen, carbon dioxide and water, and then the bottom sludge is degraded and absorbed;
s4: after the cleaning of the bottom mud of the river channel is finished in S3, establishing an ecological floating island for the production, multiplication and inhabitation of plants and microorganisms at the periphery of the river channel; introducing zooplankton, fish and benthonic animals into the river channel; establishing artificial landscape wetland near the river channel to enhance the ecological environment protection;
the S2 sludge cleaning device comprises a box body, wherein weights are symmetrically arranged on two sides of the top of the box body; air storage tanks are symmetrically arranged on two sides of the outer surface of the box body, and an air pump is arranged on the outer wall of the upper end of the box body and communicated with the air storage tanks through an air flow channel; a sludge discharge pipe is arranged at the central position of the box body, a spiral pipeline is arranged at the bottom end of the sludge discharge pipe, a sludge suction pipe is arranged at the lower right corner of the box body, the sludge suction pipe penetrates through the box body, and one end of the sludge suction pipe in the box body is communicated with the bottom of the spiral pipeline; the outer wall of the box body, which is close to one side of the sludge discharge pipe, is provided with a propeller, and the propeller is arranged between the two gas storage tanks; when the box body floats up and down, the air pump is matched with the air storage tank to enable the box body to float up or sink by adjusting the content of gas in the air storage tank; the box body is driven by the propeller to move after sinking to the bottom of the river channel; the sludge suction pipe can absorb sludge to the bottom of the river channel under the action of the water pump, the absorbed sludge is discharged to the ground through the sludge suction pipe, the spiral pipeline and the sludge discharge pipe, the sludge can become loose under the action of centrifugal force when the sludge passes through the spiral pipeline, and the probability of pipeline blockage can be reduced when the loose sludge moves in the pipeline; through the cooperation of the weight, the gas storage tank, the gas pump and the spiral pipeline, the sludge in the deep layer of the river channel can be cleaned, and meanwhile, the pipeline is not easy to be blocked by the sludge in the pipeline, so that the stability of the sludge cleaning device is improved.
Preferably, the bottom of the box body is provided with an aeration air bag and an aeration pipe; one side of the aeration air bag, which is close to the sludge suction pipe, is communicated with one end of the aeration pipe; the other end of the aeration pipe is communicated with river water; the outer wall of the spiral pipeline is provided with a metal block, and the metal block is fixedly connected with the outer wall of the spiral pipeline through a spring; the vibration of the surface of the spiral pipeline can drive the metal block and the aeration air bag to extrude; the sludge suction pipe is driven by the air pump to absorb sludge; when sludge passes through a spiral pipeline made of soft materials and does centrifugal motion in the spiral pipeline, the moving sludge collides with the inner wall of the spiral pipeline to enable the spiral pipeline to shake violently, the violent shaking of the spiral pipeline can drive a metal block arranged on the outer wall of the spiral pipeline to shake violently, a spring connecting the metal block and the outer wall of the spiral pipeline can drive the metal block to stretch and retract, the stretchable metal block can extrude with an aeration air bag arranged at the bottom of a box body to release gas, and the released gas is sprayed into water through an aeration pipe; the flowing air flow contacts with the sludge at the bottom of the water, the sludge is loosened by the impact force of the air flow, and the loosened sludge is beneficial to being absorbed by a water pump; under the cooperation of the spiral pipeline, the metal block and the aeration air bag, the sludge at the bottom of the sludge cleaning device becomes soft, which is beneficial to the treatment of the water pump on the sludge and improves the efficiency of the sludge treatment.
Preferably, the movement track of the sludge cleaning device is in a bow shape, and river sludge is cleaned layer by layer through the movement track of the bow shape; the box body moves back and forth on the sludge under the action of the propeller, and the air storage tanks on the two sides of the box body are matched with the air pump to suck air to increase the gravity of the box body and drive the box body to move downwards to realize a bow-shaped motion track; the sludge cleaning device adopts the bow-shaped track motion and does not vertically clean sludge from top to bottom, the sludge can be cleaned too fast due to the vertical sludge cleaning, and a large amount of algae plants are produced due to the large amount of spread of microorganisms contained in the sludge to influence the water quality of the riverway; the use of a "bow" shaped cleaning track reduces the number of spread microorganisms.
Preferably, at least two ultraviolet sterilizing lamps are symmetrically arranged on two sides of the spiral pipeline, and a first heat absorption air bag is arranged below the ultraviolet sterilizing lamps; the spiral pipeline is made of transparent soft materials, light emitted by the ultraviolet sterilizing lamp can be sterilized through the pipe wall of the spiral pipeline, and heat generated by the ultraviolet sterilizing lamp is absorbed by the first heat absorption air bag; the sludge becomes loose when passing through the spiral pipeline, the sludge and the microorganisms are dispersed, and the ultraviolet sterilizing lamp irradiates the microorganisms through the spiral pipeline for sterilization treatment; the heat generated by the ultraviolet sterilizing lamp can sterilize the sludge passing through the spiral pipeline at high temperature in the closed box body; meanwhile, the first heat absorption air bag can absorb heat generated by the ultraviolet sterilization lamp during working, and high-temperature gas is discharged to the surface of the spiral pipeline for high-temperature sterilization when the temperature in the first heat absorption air bag is increased and increased.
Preferably, the bottom end of the outer surface of the box body is provided with arc claws, the arc claws are hinged with the box body, the arc claws are connected through springs, and the tops of the arc claws are positioned below the pipe orifice of the aeration pipe; the arc claw head is fixedly connected with the box body, and the bottom end of the arc claw is conical; the box removes the in-process at the screw, sets up the arc claw in bottom half and can contact with mud, and the swing of arc claw can be stirred to aeration pipe intermittent type spun gas simultaneously, and wobbling arc claw conical head and mud contact back, mud become loose, and loose mud is fast when the process helical pipeline, also can reduce the probability that the jam appears in the helical pipeline simultaneously.
Preferably, one side of the first heat absorption air bag, which is far away from the mud suction pipe, is provided with a second heat absorption air bag; strong brine and a heat-shrinkable substance are arranged in the second heat-absorbing air bag, an exhaust pipe is arranged at the bottom of the second heat-absorbing air bag, the top of the exhaust pipe is communicated with the second heat-absorbing air bag, and the bottom of the exhaust pipe is communicated with river water; ultraviolet sterilamp can produce the heat in the sterilization process, and the heat can't be discharged in the confined box simultaneously, and No. two heat absorption gasbags of making by the heat absorption material can absorb the heat, and the pyrocondensation material that sets up in No. two heat absorption gasbags can be heated and dwindle, and blast pipe mouth of pipe pyrocondensation material volume dwindles, and in the strong brine in No. two heat absorption gasbags can release the water, the cell membrane that high concentration's salt water can destroy the microorganism sterilized to the microorganism.
The invention has the technical effects and advantages that:
1. according to the comprehensive treatment method for mixed sewage, provided by the invention, under the matching work of the weight, the gas storage tank, the gas pump and the spiral pipeline, the sludge in the deep layer of the river channel can be cleaned, the sludge treatment efficiency is improved, meanwhile, the pipeline is not easy to be blocked by the sludge in the pipeline, and the stability of the sludge cleaning device is improved.
2. According to the comprehensive treatment method for mixed sewage, provided by the invention, the sludge at the bottom of the sludge cleaning device is softened under the cooperation of the spiral pipeline, the metal block and the aeration air bag, so that the treatment of the sludge by the water pump is facilitated, and the sludge treatment efficiency is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a diagram of the steps of the present invention;
FIG. 2 is a running track of the sludge cleaning apparatus according to the present invention;
FIG. 3 is a structural view of a sludge cleaning apparatus according to the present invention;
FIG. 4 is a sectional view of the sludge cleaning apparatus according to the present invention;
in the figure: the device comprises a box body 1, an aeration air bag 11, an aeration pipe 12, an ultraviolet sterilization lamp 13, an arc claw 14, a first heat absorption air bag 15, an exhaust pipe 16, a second heat absorption air bag 17, a weight 2, an air storage tank 3, an air pump 4, a mud discharging pipe 5, a spiral pipeline 6, a metal block 61, a mud suction pipe 7 and a propeller 8.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in FIGS. 1 to 4, the comprehensive treatment method for mixed sewage of the invention comprises the following steps:
s1: hanging a biological slow release bag at the sewage outlet; placing an oil absorption felt at a sewage discharge port of domestic sewage, forming a biological array by adopting an artificial planting ecological base mode to supplement microorganisms, soaking a bacterial liquid in the ecological base to provide a carrier for the microorganisms, enabling biological flora in the branch gushes to form a biological film on the surface of the ecological base soaked with the bacterial liquid through natural enrichment of organisms, extracting pollutants in the sewage through the life activities of the microorganisms, absorbing the pollutants as nutrition, assimilating, decomposing and removing pollution impurities in the sewage, and pretreating river pollution from the source;
s2: after pretreatment of river pollution from a source in S1, sludge at the bottom of a polluted river reach is pumped out by using a sludge cleaning device, the sludge cleaning device enables the device to sink to the bottom of the river through a weight, and river bottom sludge is pumped to the ground by using a water pump;
s3: cleaning the river sludge in S2, placing the microbial agent in the river, decomposing the microbial agent into nitrogen, carbon dioxide and water, and degrading and absorbing the bottom sludge;
s4: after the cleaning of the bottom mud of the river channel is finished in S3, establishing an ecological floating island for the production, multiplication and inhabitation of plants and microorganisms at the periphery of the river channel; introducing zooplankton, fish and benthonic animals into the river channel; establishing artificial landscape wetland near the river channel to enhance the ecological environment protection;
the sludge cleaning device used in the S2 process comprises a box body 1, wherein weight blocks 2 are symmetrically arranged on two sides of the top of the box body 1; air storage tanks 3 are symmetrically arranged on two sides of the outer surface of the box body 1, an air pump 4 is arranged on the outer wall of the upper end of the box body 1, and the air pump 4 is communicated with the air storage tanks 3 through an air flow channel; a sludge discharge pipe 5 is arranged at the center of the box body 1, a spiral pipeline 6 is arranged at the bottom end of the sludge discharge pipe 5, a sludge suction pipe 7 is arranged at the lower right corner of the box body 1, the sludge suction pipe 7 penetrates through the box body 1, and the sludge suction pipe 7 is communicated with the bottom of the spiral pipeline 6 at one end of the box body 1; the outer wall of the box body 1, which is close to one side of the sludge discharge pipe 5, is provided with a propeller 8, and the propeller is arranged between the two gas storage tanks; when the sludge treatment device works, the box body 1 sinks to the bottom of a river channel to be contacted with sludge under the action of gravity of the weight block 2; when the box body is required to float up and down, the matching between the air pump 4 and the air storage tank 3 enables the box body 1 to float up or sink down by adjusting the gas content in the air storage tank 3; the box body 1 is driven by the propeller 8 to move after sinking to the bottom of the river channel; the sludge suction pipe 7 can absorb sludge to the bottom of the river channel under the action of the water pump, the absorbed sludge is discharged to the ground through the sludge suction pipe 7, the spiral pipeline 6 and the sludge discharge pipe 5, the sludge becomes loose under the action of centrifugal force when passing through the spiral pipeline 7, and the possibility of pipeline blockage is reduced due to the movement of the loose sludge in the pipeline; under the matching work of the weight 2, the gas storage tank 3, the gas pump 4 and the spiral pipeline 6, the sludge deep layer of the river channel can be cleaned, the sludge treatment efficiency is improved, and meanwhile, the pipeline is not easy to be blocked by the sludge in the pipeline, and the stability of the sludge cleaning device is improved.
As an embodiment of the invention, the bottom of the box body 1 is provided with an aeration air bag 11 and an aeration pipe 12; one side of the aeration air bag 11 close to the sludge suction pipe 7 is communicated with one end of the aeration pipe 12; the other end of the aeration pipe 12 is communicated with river water; the outer wall of the spiral pipeline 6 is provided with a metal block 61, and the metal block 61 is fixedly connected with the outer wall of the spiral pipeline 6 through a spring; the vibration of the surface of the spiral pipeline 6 can drive the metal block 61 and the aeration air bag 11 to extrude; the sludge suction pipe 7 is driven by the air pump to absorb sludge, when the sludge passes through the spiral pipeline 6 made of soft materials, the sludge moves in the spiral pipeline 6, when the sludge passes through the spiral pipeline 6 made of soft materials, the sludge does centrifugal motion in the spiral pipeline 6, the moving sludge collides with the inner wall of the spiral pipeline 6 to enable the spiral pipeline 6 to shake violently, the violent shaking of the spiral pipeline 6 can drive the metal block 61 arranged on the outer wall of the spiral pipeline 6 to shake violently, a spring connecting the metal block 61 with the outer wall of the spiral pipeline 6 can drive the metal block 61 to stretch and retract, the stretched metal block 61 can extrude and release gas with the aeration air bag 11 arranged at the bottom of the box body 1, and the released gas is sprayed into water through the aeration pipe 12; the flowing air flow contacts with the sludge at the bottom of the water, and the sludge is loosened by the impact force of the air flow, so that the sludge is more favorably absorbed by a water pump; the device enables the sludge at the bottom of the sludge cleaning device to become soft under the matching work of the spiral pipeline 6, the metal block 61 and the aeration air bag, is favorable for the treatment of the water pump on the sludge, and improves the efficiency of sludge treatment.
As an embodiment of the invention, the motion trail of the sludge cleaning device is in a shape of a Chinese character 'gong', and river sludge is cleaned layer by layer through the motion trail of the Chinese character 'gong'; the box body 1 moves back and forth on the sludge under the action of the propeller 8, the air storage tanks 3 on two sides of the box body 1 are matched with the air pump 4 to suck air to increase the gravity of the box body 1, and the box body 1 is driven to move downwards to realize a bow-shaped motion track; the sludge cleaning device adopts bow-shaped track motion and does not vertically clean sludge from top to bottom, the sludge can be cleaned too fast by vertically cleaning the sludge, and microorganisms contained in the sludge can be diffused in a large amount to cause mass production of algae plants and influence the water quality of a river channel; the use of a "bow" shaped cleaning track reduces the number of spread microorganisms.
As an embodiment of the invention, at least two ultraviolet sterilizing lamps 13 are symmetrically arranged on both sides of the spiral pipeline 6, and a first heat-absorbing air bag 15 is arranged below the ultraviolet sterilizing lamps 13; the spiral pipeline 6 is made of transparent soft materials, light emitted by the ultraviolet sterilizing lamp 13 can be sterilized through the pipe wall of the spiral pipeline 6, and heat generated by the ultraviolet sterilizing lamp 13 is absorbed by the first heat absorption air bag 15; the sludge becomes loose when passing through the spiral pipeline 6, the sludge and the microorganisms are dispersed, and the ultraviolet sterilizing lamp 13 arranged irradiates the microorganisms through the spiral pipeline 6 for sterilization treatment; the heat generated by the ultraviolet sterilizing lamp 13 can sterilize the sludge passing through the spiral pipeline 6 at high temperature in the closed box body 1; meanwhile, the first heat absorption air bag 15 can absorb heat generated by the ultraviolet sterilization lamp 13 during operation, and high-temperature gas is discharged to the surface of the spiral pipeline 6 for high-temperature sterilization when the temperature in the first heat absorption air bag 15 is increased and the pressure is increased.
As an embodiment of the invention, the bottom end of the outer surface of the box body 1 is provided with an arc claw 14, the arc claw 14 is hinged with the box body 1, the arc claws 14 are connected through springs, and the top of the arc claw 14 is positioned below the orifice of the aeration pipe 12; the head of the arc claw 14 is fixedly connected with the box body 1, the bottom end of the arc claw 14 is arranged to be a conical box body 1, the arc claw 14 arranged at the bottom of the box body 1 is contacted with sludge in the process of moving the propeller, meanwhile, gas intermittently sprayed by the aeration pipe 14 can stir the arc claw 14 to swing, after the conical head of the swinging arc claw 14 is contacted with the sludge, the sludge becomes loose, and the loose sludge is convenient for absorbing the sludge and moving the box body 1.
As an embodiment of the invention, a second heat absorption air bag 17 is arranged on one side of the first heat absorption air bag 15 away from the mud suction pipe 7; strong brine and a heat-shrinkable substance are arranged in the second heat-absorbing air bag 17, an exhaust pipe 16 is arranged at the bottom of the second heat-absorbing air bag 17, the top of the exhaust pipe 16 is communicated with the second heat-absorbing air bag 17, and the bottom of the exhaust pipe 16 is communicated with river water; ultraviolet sterilamp 13 can produce the heat in the sterilization process, and the heat can't be discharged in confined box 1 simultaneously, and No. two heat absorption gasbags 17 of being made by the heat absorption material can absorb the heat, and the pyrocondensation material that sets up in No. two heat absorption gasbags 17 can be heated and dwindle, and 16 mouths of pipe of blast pipe are because the pyrocondensation material volume dwindles, and the strong brine in No. two heat absorption gasbags 17 can release in the water, and the cell membrane that the salt brine of high concentration can destroy the microorganism is sterilized to the microorganism.
When the sludge treatment device works, the box body 1 sinks to the bottom of a river channel to be contacted with sludge under the action of gravity of the weight block 2; when the box body is required to float up and down, the matching between the air pump 4 and the air storage tank 3 enables the box body 1 to float up or sink down by adjusting the gas content in the air storage tank 3; the box body 1 is driven by the propeller 8 to move after sinking to the bottom of the river channel; the sludge suction pipe 7 can absorb sludge to the bottom of the river channel under the action of the water pump, the absorbed sludge is discharged to the ground through the sludge suction pipe 7, the spiral pipeline 6 and the sludge discharge pipe 5, the sludge becomes loose under the action of centrifugal force when passing through the spiral pipeline 7, and the possibility of pipeline blockage is reduced due to the movement of the loose sludge in the pipeline; under the matching work of the weight 2, the gas storage tank 3, the gas pump 4 and the spiral pipeline 6, the sludge cleaning device can clean sludge in the deep layer of the river channel to improve the sludge treatment efficiency, and meanwhile, the sludge is not easy to block in the pipeline, so that the stability of the sludge cleaning device is improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A comprehensive treatment method for mixed sewage is characterized by comprising the following steps:
s1: hanging a biological slow release bag at the sewage outlet; placing an oil absorption felt at a sewage discharge port of domestic sewage, forming a biological array by adopting an artificial planting ecological base mode to supplement microorganisms, soaking a bacterial liquid in the ecological base to provide a carrier for the microorganisms, enabling biological flora in the branch gushes to form a biological film on the surface of the ecological base soaked with the bacterial liquid through natural enrichment of organisms, extracting pollutants in the sewage through the life activities of the microorganisms, absorbing the pollutants as nutrition, assimilating, decomposing and removing pollution impurities in the sewage, and pretreating river pollution from the source;
s2: after pretreatment of river pollution from a source in S1, sludge at the bottom of a polluted river reach is pumped out by using a sludge cleaning device, the sludge cleaning device enables the device to sink to the bottom of the river through a weight, and river bottom sludge is pumped to the ground by using a water pump;
s3: after river sludge is cleaned in S2, the microbial agent is placed in a river channel and decomposed into nitrogen, carbon dioxide and water, and then the bottom sludge is degraded and absorbed;
s4: after the cleaning of the bottom mud of the river channel is finished in S3, establishing an ecological floating island for the production, multiplication and inhabitation of plants and microorganisms at the periphery of the river channel; introducing zooplankton, fish and benthonic animals into the river channel; establishing artificial landscape wetland near the river channel to enhance the ecological environment protection;
s2, the sludge cleaning device comprises a box body (1), wherein weights (2) are symmetrically arranged on two sides of the top of the box body (1); the two sides of the outer wall of the box body (1) are symmetrically provided with air storage tanks (3); an air pump (4) is arranged on the outer wall of the upper end of the box body (1), and the air pump (4) is communicated with the air storage tank (3) through an air flow channel; a sludge discharge pipe (5) is arranged at the center of the box body (1), and a spiral pipeline (6) is arranged at the bottom end of the sludge discharge pipe (5); a sludge suction pipe (7) is arranged at the lower right corner of the box body (1), the sludge suction pipe (7) penetrates through the box body (1), and one end of the sludge suction pipe (7) in the box body (1) is communicated with the bottom of the spiral pipeline (6); the outer wall of the box body (1) close to one side of the sludge discharge pipe (5) is provided with a propeller (8), and the propeller (8) is positioned between the two gas storage tanks;
an aeration air bag (11) and an aeration pipe (12) are arranged at the bottom of the box body (1); one side of the aeration air bag (11) close to the sludge suction pipe (7) is communicated with the aeration pipe (12); the other end of the aeration pipe (12) is communicated with river water; a metal block (61) is arranged on the outer wall of the spiral pipeline (6), and the metal block (61) is fixedly connected with the outer wall of the spiral pipeline (6) through a spring; the vibration of the surface of the spiral pipeline (6) can drive the metal block (61) and the aeration air bag (11) to extrude;
when sludge passes through the spiral pipeline (6) made of soft materials, the sludge performs centrifugal motion in the spiral pipeline (6), the moving sludge collides with the inner wall of the spiral pipeline (6) to enable the spiral pipeline (6) to shake violently, the violent shaking of the spiral pipeline (6) can drive the metal block (61) arranged on the outer wall of the spiral pipeline (6) to shake violently, a spring connecting the metal block (61) with the outer wall of the spiral pipeline (6) can drive the metal block (61) to stretch, the stretched metal block (61) can extrude the aeration air bag (11) arranged at the bottom of the box body (1) to release gas, and the released gas is sprayed into water through the aeration pipe (12); the flowing air current contacts with the sludge at the bottom, and the impact force of the air current loosens the sludge, so that the sludge is more favorably absorbed by a water pump.
2. The comprehensive treatment method of mixed sewage according to claim 1, characterized in that: the motion trail of the sludge cleaning device is in a bow shape, and river sludge is cleaned layer by layer through the motion trail of the bow shape.
3. The comprehensive treatment method for mixed sewage according to claim 1, characterized in that: at least two ultraviolet sterilizing lamps (13) are symmetrically arranged on two sides of the spiral pipeline (6), and a first heat absorption air bag (15) is arranged below each ultraviolet sterilizing lamp (13); the spiral pipeline (6) is made of transparent soft materials, light emitted by the ultraviolet sterilizing lamp (13) can be sterilized through the pipe wall of the spiral pipeline (6), and heat generated by the ultraviolet sterilizing lamp (13) is absorbed by the first heat absorption air bag (15).
4. The comprehensive treatment method of mixed sewage according to claim 1, characterized in that: the bottom end of the outer surface of the box body (1) is provided with an arc claw (14), the arc claw (14) is hinged with the box body (1), the arc claws (14) are connected through springs, and the top of the arc claw (14) is positioned below the pipe orifice of the aeration pipe (12); the head of the arc claw (14) is fixedly connected with the box body (1), and the bottom end of the arc claw (14) is conical.
5. The comprehensive treatment method of mixed sewage according to claim 3, characterized in that: one side of the first heat absorption air bag (15) far away from the mud suction port is provided with a second heat absorption air bag (17), strong brine and a heat-shrinkable substance are arranged in the second heat absorption air bag (17), an exhaust pipe (16) is arranged at the bottom of the second heat absorption air bag (17), the top of the exhaust pipe (16) is communicated with the second heat absorption air bag (17), and the bottom of the exhaust pipe (16) is communicated with river water.
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