CN202139130U - Concentrated water recycling system of reverse osmosis filter device - Google Patents
Concentrated water recycling system of reverse osmosis filter device Download PDFInfo
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- CN202139130U CN202139130U CN201120222587U CN201120222587U CN202139130U CN 202139130 U CN202139130 U CN 202139130U CN 201120222587 U CN201120222587 U CN 201120222587U CN 201120222587 U CN201120222587 U CN 201120222587U CN 202139130 U CN202139130 U CN 202139130U
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- reverse osmosis
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Abstract
The utility model discloses a concentrated water recycling system of a reverse osmosis filter device, which comprises a concentrated water pretreatment system and a secondary reverse osmosis system, wherein the concentrated water pretreatment system comprises a reaction tank, a settling tank and a carbonizing tank which are in a step arrangement in sequence; the reaction tank is provided with a reverse osmosis concentrated water input end; the input end of the setting tank is connected with the output end of the reaction tank; the input end of the carbonizing tank is connected with the output end of the setting tank; the concentrated water pretreatment system comprises a sludge treatment system and a pipe type microfiltration system; the sludge treatment system is connected with the setting tank and the carbonizing tank simultaneously; the output end of the carbonizing tank is connected with the input end of the pip type microfiltration system; a power pump is arranged on a connecting pipeline of the carbonizing tank and the pipe type microfiltration system; the pipe type microfiltration system is provided with a filter liquor outlet and a concentrated water outlet which is directly connected with the carbonizing tank; and the filter liquor outlet is connected with the secondary reverse osmosis system. The concentrated water recycling system can realize high recycling rate of concentrated water.
Description
Technical field
The utility model relates to the sewage treatment equipment art, refers in particular to a kind of dense water reclaiming system of reverse-osmosis filtering device.
Background technology
In various membrane separation techniques, reverse osmosis technology be domestic in recent years application the most successful, with fastest developing speed, popularize the widest a kind ofly, a lot of process water treatment systems of current use all reduce the ion in the process water with reverse osmosis technology.Directly adopt reverse osmosis technology to realize the solid-liquid separation of sewage; The recovery of reverse osmosis concentrated water is all in 75%～80% this scope generally speaking; 20%～25% reverse osmosis concentrated water all is discharged as waste water, not only causes the wasting of resources, has also caused certain environmental pollution.
Along with the raising of water price, increasing company hopes to reclaim and the reuse reverse osmosis concentrated water, so the way of this this company is the water inlet that directly adds dense water two-pass reverse osmosis, carries out the two-pass reverse osmosis processing.Yet there not being this method under the situation of preparatory pre-treatment can cause the fouling or the pollution of reverse osmosis module, reduce the operating performance of two-pass reverse osmosis system, cause the recovery of reverse osmosis concentrated water not high.
The utility model content
In view of this; The utility model is to the disappearance of prior art existence, and its main purpose provides a kind of dense water reclaiming system of reverse-osmosis filtering device, and it can reduce the fouling and the pollution of reverse osmosis system to greatest extent; Improve the operating performance of reverse osmosis system, improve the dense water recovery.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of dense water reclaiming system of reverse-osmosis filtering device; Comprise dense water pretreatment system and two utmost point reverse osmosis systems; This dense water pretreatment system comprises and is reaction tank, settling tank and the carbonization pond that ladder is arranged successively; This reaction tank is provided with the reverse osmosis concentrated water input terminus, and the output terminal in the input terminus ligation pond of this settling tank, the input terminus in this carbonization pond connects the output terminal of settling tank;
This dense water pretreatment system also comprises sludge treating system and tubular type microfiltration systems; This sludge treating system is connected with the carbonization pond with aforementioned settling tank simultaneously; The output terminal in this carbonization pond is connected with the input terminus of tubular type microfiltration systems, and the connecting pipeline between carbonization pond and tubular type microfiltration systems is provided with power-driven pump, and the tubular type microfiltration systems is provided with filtered liq delivery port and liquid concentrator delivery port; The liquid concentrator delivery port directly is connected with the carbonization pond, and the filtered liq delivery port then is connected with two utmost point reverse osmosis systems.
Preferably, said tubular type microfiltration systems mainly is to adopt the tube type filter membrance of cross flow filter to constitute by several, and this tube type filter membrance is shaggy fluorocarbon.
Preferably, further include in the said tubular type microfiltration systems and clean post and intake valve, this cleans post and all is connected with tube type filter membrance with intake valve.
Preferably, further include sludge pump, the water inlet pipe of this sludge pump is connected the bottom of settling tank, and the rising pipe of sludge pump is connected in the sludge treating system.
Preferably, the sludge treatment device in the said sludge treating system is a plate-and-frame filter press.
After the utility model adopts technique scheme; Its beneficial effect is; Through on common reverse osmosis system, increasing frame reaction tank, settling tank, carbonization pond, sludge treating system and tubular type microfiltration systems, make reverse osmosis concentrated water carry out preparatory pre-treatment earlier before handling carrying out two-pass reverse osmosis,---------softening again---solid-liquid separation---again removes mud to solid-liquid separation again to remove mud to realize reverse osmosis concentrated water softening; Reach the silicone content in the sewage, the reduction of Mg content and the removal effect of solid particulate; The removal efficient of pollutent is high, and treatment effect is good, and can reduce the fouling and the pollution of reverse osmosis system simply and effectively; Make the water outlet of two-pass reverse osmosis system reliable, the high efficiente callback of the dense water of realization system.In addition, in this dense water reclaiming system, only need set the efficient backwater that tube type filter membrance equipment and two-pass reverse osmosis equipment can be accomplished dense water, avoid multi-medium filtering, operating structure is simple, and the system zero parts are few, are easy to attended operation.
Be constitutional features and the effect of more clearly setting forth the utility model, come the utility model is elaborated below in conjunction with accompanying drawing and specific embodiment.
Description of drawings
Fig. 1 is the utility model process flow sheet.
The accompanying drawing identifier declaration:
100, dense water pretreatment system
10, reaction tank
20, settling tank
30, carbonization pond
40, sludge treating system
50, tubular type microfiltration systems
60, power-driven pump
70, sludge pump
200, two utmost point reverse osmosis systems.
Embodiment
As shown in Figure 1; It has demonstrated the concrete structure of the embodiment of the utility model; Dense water pretreatment system 100 that the dense water reclaiming system of this reverse-osmosis filtering device comprises and two utmost point reverse osmosis systems 200, this dense water pretreatment system 100 mainly is made up of reaction tank 10, settling tank 20, carbonization pond 30, sludge treating system 40, tubular type microfiltration systems 50.
Particularly, be connected with waste pipe on this reaction tank 10, reverse osmosis concentrated water is injected in the reaction tank 10 through waste pipe; When reverse osmosis concentrated water reaches when tolerance, the lime that in this reaction tank 10, adds suitable dosage carries out the first time with Natural manganese dioxide to reverse osmosis concentrated water and softens, in this programme; Softening process carries out when pH 11.5 for the first time; So that the magnesium solubleness in the reverse osmosis concentrated water is minimum, in order to reach reaction effect preferably, lime and magnesian interpolation are preferably in proper order earlier and added lime reaction 20 minutes; Add Natural manganese dioxide reaction 20 minutes then, in reaction tank, be formed with suspension liquid after reaction finishes.
Said settling tank 20 is close to reaction tank 10 setting, is used for collecting the suspension liquid of reaction tank 10, this suspension liquid in dull pond, precipitate one deck supernatant of forming above being positioned at and below mud.It is low that the geography of this settling tank 20 cans be compared to reaction tank 10 highly most; Forming ladder with reaction tank 10 arranges; So that the suspension liquid in the reactive tank can inject settling tank 20 through the switch-valve of opening on the pipe that is connected with settling tank 20; Certainly, also can the sewage in the reaction tank be injected in the settling tank 20 through power-driven pump or alternate manner.The bottom of said settling tank 20 is provided with sludge pump 70, and this sludge pump 70 is regularly beaten away the mud of settling tank 20 bottoms and is sent in the sludge treating system 40.
Said carbonization pond 30 is positioned at by the side of settling tank 20, and it is low that these 30 residing geographical position, carbonization pond can be compared to settling tank 20 most, forms ladder with settling tank 20 and arranges, so that the supernatant in the settling tank 20 can inject this carbonization pond 30 through the mode of overflow.When the supernatant in the carbonization pond 30 reaches a certain amount of, in carbonization pond 30, feed an amount of carbonic acid gas the pH of supernatant is turned down, thereby the second time of realizing sewage is softening; In the present embodiment, for the second time softening process is to carry out in 10 o'clock at pH, so that the solubleness of calcium is minimum; After after a while; Top in the carbonization pond is formed with suspension-s, and the below is formed with mud, and this mud is fed in the sludge treating system 40.
Said sludge treating system 40 has a plate-and-frame filter press; Its sludge pump 70 with aforementioned settling tank 20 bottoms links to each other; And the mud of being sent here by sludge pump 70 carried out processed; This plate-and-frame filter press also carries out processed to the mud of being sent here by carbonization pond 30 simultaneously, and the mud solid content after the dehydration is greater than 70%, and sewage sludge solid is transported to refuse landfill and handles.
Said tubular type microfiltration systems 50 mainly is to adopt the tube type filter membrance of cross flow filter to constitute by several, and the cross flow filter technology makes fenestra be difficult for stopping up, and membrane flux is big, good filtration effect.The aperture of this tube type filter membrance is 0.05,0.1,0.5,5,10,20 micron, thereby can effectively diameter be come out at the granule sieving more than 0.05 micron.Mould material preferably adopts shaggy fluorocarbon, and this material has the obstruction of being difficult for, wear-resistant, corrosion resistant characteristic, is beneficial to clean the fouling on this film with acid-base solution; Because this tube type filter membrance is the publicly-owned technology of convention, does not add at this and gives detailed description.In the utility model; One end of this tube type filter membrance system 50 joins with aforementioned carbonization pond through water inlet pipe; Be provided with a power-driven pump in this water inlet pipe, also be provided with the dense water pipe that joins with the carbonization pond in this tube type filter membrance system 50, this dense water pipe is provided with valve.During normal operation, said power-driven pump 60 is got to the film surface continuously with suspension-s, forms a high speed velocity of shear, and the pressure of liquid orders about certain water and passes through fenestra, and the particle bigger than film mean pore size tackled with dense water and got back to carbonization pond 30 through dense water pipe.
In addition; On this tubular type microfiltration systems 50, also include by cleaning the back-purge system that bumper post and intake valve are formed, this back-purge system is connected with the automation controller that PLC weaves into; Realization cooperates the velocity of shear of aforementioned power-driven pump to realize backwash in per 10 to 15 minutes once with compressed-air actuated mode; Avoid fenestra alluvial and obstruction and limited flow rate, the assurance system is continuous, and it is stable to produce water.Yet As time goes on, solia particle still can be in the cumulative of tube type filter membrance, limited flow rate; When flow velocity be reduced to clean film flow velocity 30～40% the time, can shut down tube type filter membrance is isolated, clean with acid-base solution again; In the present embodiment, remove bacterium with Youxiaolin earlier, clean dirt with hydrochloric acid again; Tube type filter membrance after the cleaning can improve circulation speed once more, and does not influence the life-span of film, avoids dismounting and changes personnel and the material cost of bringing.
Said two utmost point reverse osmosis systems 200 are used for the filtered water of tubular type microfiltration systems 50 is carried out reverse-osmosis treated; Thereby water quality is improved, and this two-pass reverse osmosis system 200 makes the rate of getting back to of reverse osmosis concentrated water reach 98% with aforementioned dense water pretreatment system 100 bound energy.
The principle of work of native system is that reverse osmosis concentrated water is injected in the reaction tank 10; The lime of adding doses and Natural manganese dioxide are transferred to 11.5 with pH in water, suspension liquid flows into deposition 20; Solid precipitation is regularly walked by 70 dozens of sludge pumps behind the bottom, and supernatant overflows in the carbonization pond 30.CO in carbonization pond 30
2Be added into and reduce about pH to 10; Suspension-s is pumped in the tubular type microfiltration systems 50 of cross flow filter; The pressure of liquid orders about certain water and passes through fenestra; The filtered liq that passes through gets into two-pass reverse osmosis system 200 and handles, and the particulate pollutant bigger than film mean pore size tackled with dense water and got back to carbonization pond 30; Mud is separated from water by micro-filtration, enters in the sludge treating system 40, and then through plate-and-frame filter press dehydration, the water outlet after the filtration is directly as the water inlet of two-pass reverse osmosis system 200.
The design focal point of the utility model is; Through on common reverse osmosis system, increasing the dense water pretreatment system that forms by reaction tank, settling tank, carbonization pond, sludge treating system and tubular type microfiltration systems; Make reverse osmosis concentrated water carry out carrying out preparatory pre-treatment earlier before the two-pass reverse osmosis processing; Realize reverse osmosis concentrated water softening---solid-liquid separation---remove mud---softening again---solid-liquid separation---again remove mud again, reach the silicone content in the sewage, the reduction of Mg content and the removal effect of solid particulate, the removal efficient of pollutent is high; Treatment effect is good; And can reduce the fouling and the pollution of reverse osmosis system simply and effectively, make the water outlet of two-pass reverse osmosis system reliable, the high efficiente callback of the dense water of realization system.In addition, in this dense water reclaiming system, only need set the efficient backwater that tube type filter membrance equipment and two-pass reverse osmosis equipment can be accomplished dense water, avoid multi-medium filtering, operating structure is simple, and the system zero parts are few, are easy to attended operation.
The above; It only is the preferred embodiment of the utility model; Be not that the technical scope of the utility model is done any restriction; So every technical spirit according to the utility model all still belongs in the scope of the utility model technical scheme any trickle modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. the dense water reclaiming system of a reverse-osmosis filtering device; Comprise dense water pretreatment system and two utmost point reverse osmosis systems; It is characterized in that: this dense water pretreatment system comprises and is reaction tank, settling tank and the carbonization pond that ladder is arranged successively; This reaction tank is provided with the reverse osmosis concentrated water input terminus, and the output terminal in the input terminus ligation pond of this settling tank, the input terminus in this carbonization pond connects the output terminal of settling tank;
This dense water pretreatment system also comprises sludge treating system and tubular type microfiltration systems; This sludge treating system is connected with the carbonization pond with aforementioned settling tank simultaneously; The output terminal in this carbonization pond is connected with the input terminus of tubular type microfiltration systems, and the connecting pipeline between carbonization pond and tubular type microfiltration systems is provided with power-driven pump, and the tubular type microfiltration systems is provided with filtered liq delivery port and liquid concentrator delivery port; The liquid concentrator delivery port directly is connected with the carbonization pond, and the filtered liq delivery port then is connected with two utmost point reverse osmosis systems.
2. the dense water reclaiming system of reverse-osmosis filtering device according to claim 1 is characterized in that: said tubular type microfiltration systems mainly is to adopt the tube type filter membrance of cross flow filters to constitute by several, and this tube type filter membrance is shaggy fluorocarbon.
3. the dense water reclaiming system of reverse-osmosis filtering device according to claim 2 is characterized in that: further include in the said tubular type microfiltration systems and clean post and intake valve, this cleans post and all is connected with tube type filter membrance with intake valve.
4. the dense water reclaiming system of reverse-osmosis filtering device according to claim 1, it is characterized in that: further include sludge pump, the water inlet pipe of this sludge pump is connected the bottom of settling tank, and the rising pipe of sludge pump is connected in the sludge treating system.
5. the dense water reclaiming system of reverse-osmosis filtering device according to claim 1, it is characterized in that: the sludge treatment device in the said sludge treating system is a plate-and-frame filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120222587U CN202139130U (en) | 2011-06-28 | 2011-06-28 | Concentrated water recycling system of reverse osmosis filter device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120222587U CN202139130U (en) | 2011-06-28 | 2011-06-28 | Concentrated water recycling system of reverse osmosis filter device |
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| CN202139130U true CN202139130U (en) | 2012-02-08 |
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| CN201120222587U Expired - Fee Related CN202139130U (en) | 2011-06-28 | 2011-06-28 | Concentrated water recycling system of reverse osmosis filter device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897949A (en) * | 2012-10-15 | 2013-01-30 | 邯郸市奥博水处理有限公司 | Drug special for reverse-osmosis concentrate water zero emission and use method thereof |
| CN103663769A (en) * | 2012-09-07 | 2014-03-26 | 中国石油化工股份有限公司 | Method for desalting sewage by using membrane separation technology |
| WO2018035883A1 (en) * | 2016-08-25 | 2018-03-01 | 万华化学集团股份有限公司 | Method for treating reverse osmosis concentrated water |
-
2011
- 2011-06-28 CN CN201120222587U patent/CN202139130U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663769A (en) * | 2012-09-07 | 2014-03-26 | 中国石油化工股份有限公司 | Method for desalting sewage by using membrane separation technology |
| CN102897949A (en) * | 2012-10-15 | 2013-01-30 | 邯郸市奥博水处理有限公司 | Drug special for reverse-osmosis concentrate water zero emission and use method thereof |
| WO2018035883A1 (en) * | 2016-08-25 | 2018-03-01 | 万华化学集团股份有限公司 | Method for treating reverse osmosis concentrated water |
| US10696574B2 (en) | 2016-08-25 | 2020-06-30 | Wanhua Chemical Group Co., Ltd. | Method for treating reverse osmosis concentrated water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG WEIDA TECHNOLOGY CO., LTD. Free format text: FORMER NAME: DONGGUAN VICDI FILM SCIENCE + TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 523000 Guangdong province Dongguan city Humen town village unity Avenue Guangdong industrial zone / Polytron Technologies Inc Patentee after: GUANGDONG VICDI TECHNOLOGY CO., LTD. Address before: 523000 Guangdong province Dongguan city Humen town village unity Avenue in Dongguan City Industrial Zone vicdi Membrane Technology Co. Ltd Patentee before: Dongguan Vicdi Film Science & Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20150628 |
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| EXPY | Termination of patent right or utility model |