CN203269737U - Recycling treatment equipment of coking wastewater - Google Patents
Recycling treatment equipment of coking wastewater Download PDFInfo
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- CN203269737U CN203269737U CN 201320308200 CN201320308200U CN203269737U CN 203269737 U CN203269737 U CN 203269737U CN 201320308200 CN201320308200 CN 201320308200 CN 201320308200 U CN201320308200 U CN 201320308200U CN 203269737 U CN203269737 U CN 203269737U
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Abstract
The utility model relates to recycling treatment equipment of coking wastewater, wherein the equipment comprises a precipitation unit, an aerobic biochemical reaction unit, a membrane-bioreactor processing unit and a reverse osmosis unit; the precipitation unit, the aerobic biochemical reaction unit and the membrane-bioreactor processing unit are orderly communicated with the reverse osmosis unit through pipelines. By adopting the recycling treatment equipment of coking wastewater, the problem of declining treatment efficiency due to fouling of a membrane in the treatment process is avoided when the coking wastewater achieves the standard of reclaimed water for recirculated cooling water; continuous and stable operation of the recycling treatment process is achieved.
Description
Technical field
The utility model relates to a kind of Treatment for Reuse equipment of coking chemical waste water.
Background technology
In short supply along with water resources, the reuse of middle water (reuse water) is to use at present more a kind for the treatment of process, still, because coking chemical waste water water quality is relatively poor, at present, most of coking chemical waste waters are all directly dischargings after processing, and do not realize reuse.Owing to still containing more pollutant in the discharge water after processing, can work the mischief to environment.Therefore, the discharge water after processing is further processed, reaches the water quality requirement of reuse water, not only can effectively utilize water resources, can also reduce the pollution to environment.But the processing of coking chemical waste water remains a difficult problem now.Because in the discharge water of coking chemical waste water, not only contain the more hardly degraded organic substance with bio-toxicity, also contain more inorganic salt material, saltiness is generally at 1000-3000mg/L.Therefore, reach the standard of reuse water, the hardly degraded organic substance with bio-toxicity in further removal water, also will remove the inorganic salt material in water.
CN201999818U discloses a kind of ultrafiltration of coking chemical waste water-nanofiltration composite processing system, it is characterized in that, comprise ultrafilter system and connected nanofiltration subsystem, described ultrafilter system comprises more medium filter, ultrafiltration water pump, self-cleaning filter, ultra-filtration equipment and the ultrafiltration water tank that is linked in sequence; Described nanofiltration subsystem comprises nanofiltration service pump, cartridge filter, plate-type heat exchanger, high-pressure pump and the nanofiltration device that is linked in sequence; Described more medium filter has the coking chemical waste water interface after the reception biochemical treatment, and described ultrafiltration water tank connects the nanofiltration service pump, and described nanofiltration device has dense water out and reuse water outlet.
Existing installation mainly adopts the pollution substance in ultrafiltration system and nanofiltration system removal water, make coking chemical waste water finally reach the standard of reuse water, but, ultrafiltration system and nanofiltration system need water inlet is effectively processed before processing is carried out, otherwise easily cause film dirty stifled, need to often carry out matting, can greatly reduce like this work-ing life of film, also reduce processing efficiency.
CN101851046A discloses a kind of coking wastewater deep treatment and full reclamation set, comprise pretreatment system and biochemical treatment system, it is characterized in that: described device also comprises by membrane bioreactor, oxidization processing system and reverse osmosis membrane treatment system and dense water evaporation and crystallization system; The outlet of the coking chemical waste water that the process pre-treatment is connected with biochemical treatment is connected with described membrane bioreactor; The water outlet of described membrane bioreactor is connected with described oxidization processing system; The water outlet of described oxidization processing system is connected with high-pressure pump with the reverse osmosis feedwater pump successively, and the high-pressure pump water outlet is connected with described reverse osmosis membrane treatment system; A water outlet of described reverse osmosis membrane treatment system is connected with described dense water evaporation and crystallization system; Another outlet of described reverse osmosis membrane treatment system is connected with the reuse water tank.Described oxidization processing system is the pneumatogen that contains ozone, hydrogen peroxide, chlorine or clorox.
Existing installation adopts membrane bioreactor to improve sludge concentration in the biochemical reaction tank and the volumetric loading of biochemical reaction tank, and by oxidization processing system, the larger molecular organics in water is broken chain and process, and then enter reverse osmosis system and carry out desalting treatment.But, adopt oxidization processing system to be difficult to chain break in the requirement on demand of the long-chain in waste water, therefore, the biochemical after oxide treatment can not guarantee, causes easily also that the dirt of film in follow-up reverse osmosis system is stifled causes the processing can't trouble-free operation.
Therefore, be necessary that the recycling and processing equipment of developing for coking chemical waste water can be when realizing that coking chemical waste water reaches recirculated cooling water use Standard of reclaimed water, avoid causing processing efficiency decline because the dirt of film is stifled in treating processes, thereby realize the running of Treatment for Reuse process continous-stable.
The utility model content
The purpose of this utility model is to provide a kind of Treatment for Reuse equipment of coking chemical waste water, this equipment can realize that coking chemical waste water reaches recirculated cooling water with in Standard of reclaimed water, avoid in treating processes realizing the operation of Treatment for Reuse process continous-stable due to the stifled problem that causes processing efficiency to descend of the dirt of film.
The utility model provides a kind of Treatment for Reuse equipment of coking chemical waste water, wherein, this equipment comprises precipitation unit, aerobic biochemical reaction member, film-bioreactor processing unit and reverse osmosis units, and described precipitation unit, described aerobic biochemical reaction member, described film-bioreactor processing unit and described reverse osmosis units are communicated with successively by pipeline.
Preferably, described precipitation unit comprises settling bowl, and described settling bowl is provided with coking chemical waste water pipeline, alkali lye pipeline and precipitation vent line.
Preferably, described alkali lye pipeline is provided with a pH value regulating and controlling valve.
Preferably, described precipitation unit also comprises the pH regulator pond, and described pH regulator pond is between the water inlet pipe of the rising pipe of described settling bowl and described aerobic biochemical reaction member.
Preferably, described pH regulator pond is provided with the acid solution pipeline.
Preferably, described acid solution pipeline installing has the 2nd pH value regulating and controlling valve.
Preferably, described aerobic biochemical reaction member comprises the aeration tank, and described aeration tank is provided with active sludge pipeline, gac pipeline and vent line.
Preferably, described film-bioreactor processing unit comprises film-biological reaction tank, is provided with film-bioreactor in described film-biological reaction tank.
Preferably, described film-biological reaction tank is provided with the sludge reflux pipeline, and an end of described sludge reflux pipeline is communicated with described film-biological reaction tank, and the other end is communicated with the aeration tank.
Preferably, described reverse osmosis units comprises the reverse osmosis pond, and described reverse osmosis is provided with reverse osmosis system in the pond.
Treatment for Reuse equipment according to described coking chemical waste water of the present utility model, in the process that is used for coking chemical waste water is processed, alkali lye injects settling bowl by the alkali lye pipeline, coking chemical waste water injects settling bowl by the coking chemical waste water pipeline, coking chemical waste water fully mixes with alkali lye, then inject the pH regulator pond, inject acid solution by the acid solution pipeline pH value of the liquid in pH regulator pond is adjusted to suitable scope, then inject the aeration tank, add respectively active sludge and gac reacts by active sludge pipeline and gac pipeline in the aeration tank, pass through settling bowl, the coking chemical waste water of pH regulator pond and aeration tank has been removed part inorganic salt and organism, reduced the easily material of dirty stifled film of film-bioreactor processing unit and reverse osmosis units, thereby again by film-bioreactor processing unit and reverse osmosis units, realizing that coking chemical waste water reaches recirculated cooling water with in Standard of reclaimed water, avoid in process due to the stifled problem that causes processing efficiency to descend of the dirt of film, thereby realize the running of Treatment for Reuse process continous-stable.
Other feature and advantage of the present utility model will partly be described in detail in embodiment subsequently.
Description of drawings
Fig. 1 is the Treatment for Reuse equipment of the described coking chemical waste water that provides of the utility model.
Description of reference numerals
13 aeration tanks, settling bowl 2 pH regulator pond
4 films-biological reaction tank, 5 reverse osmosis ponds
11 coking chemical waste water pipeline 12 alkali lye pipeline 13 precipitation vent lines
14 acid solution pipeline 15 active sludge pipeline 16 gac pipelines
17 sludge reflux pipeline 18 vent lines
121 the one pH value regulating and controlling valve 141 the 2nd pH value regulating and controlling valves
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.Should be understood that, embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
As shown in Figure 1, comprise precipitation unit, aerobic biochemical reaction member, film-bioreactor processing unit and reverse osmosis units according to the Treatment for Reuse equipment of described coking chemical waste water of the present utility model, described precipitation unit, described aerobic biochemical reaction member, described film-bioreactor processing unit and described reverse osmosis units are communicated with successively by pipeline.
In the Treatment for Reuse equipment of described coking chemical waste water, described precipitation unit comprises settling bowl 1, and described settling bowl 1 is provided with coking chemical waste water pipeline 11, alkali lye pipeline 12 and precipitation vent line 13.Described coking chemical waste water pipeline 11, alkali lye pipeline 12 and precipitation vent line 13 can be separately positioned on bottom or the sidepiece of settling bowl 1.Described coking chemical waste water pipeline 11 is used for providing pending coking chemical waste water, described alkali lye pipeline 12 is used for providing the pH of the coking chemical waste water of alkali lye to regulate settling bowl 1 to reach suitable scope, with the temporary hardness that reduces coking chemical waste water and remove fluorion in coking chemical waste water, settle down and reduce the amount of the inorganic salt that enter the subsequent disposal unit thereby form throw out in settling bowl.Discharge by precipitation vent line 13 when throw out is more.
In the preferred case, as shown in Figure 1, described alkali lye pipeline 12 is provided with a pH value regulating and controlling valve 121.What a described pH value regulating and controlling valve 121 was preferably various routines can control according to the pH value of complex (being settling bowl 1) variable valve of the aperture of pipeline.
In the Treatment for Reuse equipment of described coking chemical waste water, described precipitation unit also comprises pH regulator pond 2, and described pH regulator pond 2 is between the water inlet pipe of the rising pipe of described settling bowl 1 and described aerobic biochemical reaction member.Because the pH value of the water outlet of settling bowl 1 is higher, active unfavorable to the nitrobacteria of follow-up aerobic biochemical reaction member, therefore, the water outlet of described settling bowl 1 also needed through pH regulator pond 2, its pH value to be adjusted to suitable scope before entering described aerobic biochemical reaction member.
In the Treatment for Reuse equipment of described coking chemical waste water, described pH regulator pond 2 is provided with acid solution pipeline 14.The top that common described acid solution pipeline 14 is arranged on described pH regulator pond 2 is used for providing acid solution that the pH value of the liquid in pH regulator pond is adjusted to suitable scope.The interior whipping appts that preferably is provided with in described pH regulator pond 2 is used for the liquid in pH regulator pond 2 are stirred, to improve the homogeneity of water outlet pH.
In the preferred case, as shown in Figure 1, described acid solution pipeline 14 is provided with the 2nd pH value regulating and controlling valve 141.What described the 2nd pH value regulating and controlling valve 141 was preferably various routines can control according to the pH value of complex (be pH regulator pond 2) variable valve of the aperture of pipeline.
In the Treatment for Reuse equipment of described coking chemical waste water, described aerobic biochemical reaction member comprises aeration tank 3, and described aeration tank 3 is provided with active sludge pipeline 15, gac pipeline 16 and vent line 18.Described active sludge pipeline 15 and described gac pipeline 16 can be arranged on top or the sidepiece of described aeration tank 3.in the starting stage of aerobic biochemical reaction, provide active sludge in aeration tank 3 by active sludge pipeline 15, by active sludge, the organism in the water outlet in pH regulator pond 2 is carried out the aerobic biochemical reaction in aeration tank 3, and provide gac by gac pipeline 16, organism (comprising the organism that the nitrobacteria in active sludge is had inhibition) in the water outlet in absorption pH regulator pond 2, to reduce, nitrobacteria had the organism of inhibition and the touch opportunity of nitrobacteria, alleviate the restraining effect to nitrobacteria, improve nitrobacteria to organic processing efficiency, in addition, extend the time that organism stops in biochemical reaction tank, be conducive to more thorough to organic substance decomposing of nitrobacteria, thereby greatly reduce the organic content that enters the subsequent disposal unit.Described vent line 18 can be arranged on bottom or the sidepiece of described aeration tank 3.Because the part material in gac and sewage can deposit in the aeration tank, and the active sludge that enters in film-biological reaction tank 4 by current can be back in aeration tank 3 to replenish the active sludge that runs off by sludge reflux pipeline 17, so, containing active sludge and can get more and more at interior settling in aeration tank 3, but when the sedimental amount in aeration tank 3 is too large, can cause the treatment capacity of aeration tank 3 to descend.Therefore, when the sedimental amount in aeration tank 3 exerts an influence to the treatment capacity of aeration tank 3, can by vent line 18 will be unnecessary the settling discharge.
In the Treatment for Reuse equipment of described coking chemical waste water, described film-bioreactor processing unit comprises film-biological reaction tank 4, be provided with membrane module in described film-biological reaction tank 4, the film separation unit that forms by membrane module with from aeration tank 3 along with current enter biological processing unit that in fact active sludge of film-biological reaction tank 4 the form formation membrane bioreactor that combines in film-biological reaction tank 4, realizes processing to intaking by film-bioreactor.Described membrane module can be any one membrane module well known by persons skilled in the art.It can be one can be also be set up in parallel a plurality of, specifically determines according to the water yield of actual treatment.
Under preferable case, described film-biological reaction tank 4 is provided with sludge reflux pipeline 17, and an end of described sludge reflux pipeline 17 is communicated with described film-biological reaction tank 4, and the other end is communicated with aeration tank 3.Usually, described film-bioreactor needs to clean after processing for some time, can obtain containing the mixture of the active sludge in described aeration tank 3 by cleaning.Can the described mixture that contains the active sludge in described aeration tank 3 be back in aeration tank 3 to replenish the active sludge in aeration tank 3 by described sludge reflux pipeline 17.
In the Treatment for Reuse equipment of described coking chemical waste water, described reverse osmosis units comprises reverse osmosis pond 5, is provided with reverse osmosis system in described reverse osmosis pond 5.Described reverse osmosis system can be any one reverse osmosis system well known by persons skilled in the art, and it can be one can be also be set up in parallel a plurality of, specifically determines according to the water yield of actual treatment.The reuse water that obtains by reverse osmosis system can meet the recirculated cooling water Standard of reclaimed water, and the dense water that produces in reverse osmosis system is directly discharging usually.
In one embodiment, as shown in Figure 1, the Treatment for Reuse equipment of described coking chemical waste water comprises settling bowl 1, pH regulator pond 2, aeration tank 3, film-biological reaction tank 4, reverse osmosis pond 5, coking chemical waste water pipeline 11, alkali lye pipeline 12, precipitation vent line 13, acid solution pipeline 14, active sludge pipeline 15, gac pipeline 16, sludge reflux pipeline 17 and vent line 18; Settling bowl 1, pH regulator pond 2, aeration tank 3, film-biological reaction tank 4 and reverse osmosis pond 5 are communicated with successively; Coking chemical waste water pipeline 11, alkali lye pipeline 12 and precipitation vent line 13 are communicated with settling bowl 1 respectively, and alkali lye pipeline 12 is provided with a pH value regulating and controlling valve 121; Acid solution pipeline 14 is communicated with pH regulator pond 2; And acid solution pipeline 14 is provided with the 2nd pH value regulating and controlling valve 141; Active sludge pipeline 15, gac pipeline 16 and vent line 18 are communicated with aeration tank 3 respectively; One end of sludge reflux pipeline 17 is communicated with film-biological reaction tank 4, and the other end is communicated with aeration tank 3.
The Treatment for Reuse equipment of the coking chemical waste water of above embodiment is particularly suitable for the waste water of ferrous metallurgy or coking industry is met after treatment the coking chemical waste water of national secondary discharge standard, also can be for exceeding the waste water of national secondary discharge standard.For example, the described coking chemical waste water in the utility model can be coking chemical waste water below 200mg/L for COD content.at this moment, the specific implementation process of the Treatment for Reuse equipment of described coking chemical waste water can comprise: coking chemical waste water injects settling bowl 1 by coking chemical waste water pipeline 11, alkali lye injects settling bowl 1 by alkali lye pipeline 12, coking chemical waste water fully mixes with alkali lye, regulate and control the pH of liquid in settling bowls 1 in suitable scope by a pH value regulating and controlling valve 121, injection pH regulator pond 2 after mixing for some time, inject acid solution by acid solution pipeline 14, preferably under whipped state, pH value by liquid in the 2nd pH value regulating and controlling valve 141 regulation and control pH regulator pond 2 is extremely in suitable scope, then inject aeration tank 3, water inlet enters film-biological reaction tank 4 in the active sludge treatment that provides through active sludge pipeline 15 under the existence of the gac that gac pipeline 16 provides after for some time in aeration tank 3, enter reverse osmosis pond 5 after processing by film-bioreactor, can obtain reuse water after processing by reverse osmosis system, the dense water that produces in reverse osmosis system directly discharges.When the treating processes of coking chemical waste water was carried out for some time of after, deposit more throw out in settling bowl 1 and discharge settling bowls by precipitation vent line 13.In addition, film-bioreactor needs to clean after processing for some time, and the mixed solution that the cleaning acquisition contains the active sludge of aeration tank 3 can be back to aeration tank 3 by sludge reflux pipeline 17.When the settling in aeration tank 3 is more, can discharge by vent line 18.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove that in addition each the concrete technical characterictic described in above-mentioned embodiment in reconcilable situation, can make up by any suitable mode.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible array modes.
In addition, also can carry out arbitrary combination between various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. the Treatment for Reuse equipment of a coking chemical waste water, it is characterized in that, this equipment comprises precipitation unit, aerobic biochemical reaction member, film-bioreactor processing unit and reverse osmosis units, and described precipitation unit, described aerobic biochemical reaction member, described film-bioreactor processing unit and described reverse osmosis units are communicated with successively by pipeline.
2. equipment according to claim 1, is characterized in that, described precipitation unit comprises settling bowl (1), and described settling bowl (1) is provided with coking chemical waste water pipeline (11), alkali lye pipeline (12) and precipitation vent line (13).
3. equipment according to claim 2, is characterized in that, described alkali lye pipeline (12) is provided with a pH value regulating and controlling valve (121).
4. according to claim 2 or 3 described equipment, is characterized in that, described precipitation unit also comprises pH regulator pond (2), and described pH regulator pond (2) is positioned between the water inlet pipe of the rising pipe of described settling bowl (1) and described aerobic biochemical reaction member.
5. equipment according to claim 4, is characterized in that, described pH regulator pond (2) is provided with acid solution pipeline (14).
6. equipment according to claim 5, is characterized in that, described acid solution pipeline (14) is provided with the 2nd pH value regulating and controlling valve (141).
7. equipment according to claim 1, is characterized in that, described aerobic biochemical reaction member comprises aeration tank (3), and described aeration tank (3) are provided with active sludge pipeline (15), gac pipeline (16) and vent line (18).
8. equipment according to claim 1, is characterized in that, described film-bioreactor processing unit comprises film-biological reaction tank (4), and described film-biological reaction tank is provided with film-bioreactor in (4).
9. equipment according to claim 8, it is characterized in that, described film-biological reaction tank (4) is provided with sludge reflux pipeline (17), and an end of described sludge reflux pipeline (17) is communicated with described film-biological reaction tank (4), and the other end is communicated with aeration tank (3).
10. equipment according to claim 1, is characterized in that, described reverse osmosis units comprises reverse osmosis pond (5), is provided with reverse osmosis system in described reverse osmosis pond (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320308200 CN203269737U (en) | 2013-05-31 | 2013-05-31 | Recycling treatment equipment of coking wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320308200 CN203269737U (en) | 2013-05-31 | 2013-05-31 | Recycling treatment equipment of coking wastewater |
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| Publication Number | Publication Date |
|---|---|
| CN203269737U true CN203269737U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320308200 Expired - Lifetime CN203269737U (en) | 2013-05-31 | 2013-05-31 | Recycling treatment equipment of coking wastewater |
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| CN (1) | CN203269737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344800A (en) * | 2017-08-22 | 2017-11-14 | 贵阳台农种养殖有限公司 | A kind of aquaculture wastewater processing system |
-
2013
- 2013-05-31 CN CN 201320308200 patent/CN203269737U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344800A (en) * | 2017-08-22 | 2017-11-14 | 贵阳台农种养殖有限公司 | A kind of aquaculture wastewater processing system |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Patentee after: CHINA ENERGY INVESTMENT Corp.,Ltd. Patentee after: CHINA ENERGY CONSERVATION AND EMISSION REDUCTION Co.,Ltd. Address before: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Shenhua building Patentee before: SHENHUA GROUP Corp.,Ltd. Patentee before: CHINA MACHINERY & ELECTIRC EXPORT PRODUCTS INVESTEMENT Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210425 Address after: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Patentee after: CHINA ENERGY INVESTMENT Corp.,Ltd. Patentee after: CHINA ENERGY CONSERVATION AND EMISSION REDUCTION Co.,Ltd. Patentee after: JINCI TECHNOLOGY INDUSTRIAL DEVELOPMENT Co.,Ltd. Address before: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Patentee before: CHINA ENERGY INVESTMENT Corp.,Ltd. Patentee before: CHINA ENERGY CONSERVATION AND EMISSION REDUCTION Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |