CN203668181U - Sewage treatment equipment - Google Patents
Sewage treatment equipment Download PDFInfo
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- CN203668181U CN203668181U CN201420002199.7U CN201420002199U CN203668181U CN 203668181 U CN203668181 U CN 203668181U CN 201420002199 U CN201420002199 U CN 201420002199U CN 203668181 U CN203668181 U CN 203668181U
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Abstract
The utility model provides a set of sewage treatment equipment. The sewage treatment equipment comprises a chemical settling basin, a microorganism oxidation pond, a microfiltration tank and a multi-effect evaporator which are connected sequentially, wherein an EDR (electrodialysis reversal) device is added between the microfiltration tank and the multi-effect evaporator; a liquid outlet of the multi-effect evaporator is connected to an external recovery device; and a waste residue outlet of the chemical settling basin, a waste residue outlet of the microorganism oxidation pond, a waste residue outlet of the microfiltration tank, a waste liquid outlet of the EDR device and a waste liquid outlet of the multi-effect evaporator are connected through pipelines and intensively convey the waste to external treatment equipment for centralized treatment. According to the sewage treatment equipment, water resources in high salinity wastewater are sufficiently reused, energy consumption for treatment of the high salinity wastewater is reduced, and the treatment effect of the prior art is improved.
Description
Technical field
The utility model relates to sewage treatment area, is specifically related to the water resources in a set of fully reuse high-salt wastewater, reduces the sewage disposal device of high-salt wastewater processing energy consumption.
Background technology
At present, along with the fast development of the industry such as chemical industry, metallurgy and urban construction, utilize water resources in order to save, reuse after trade effluent, municipal effluent etc. adopt reverse osmosis technology to process mostly, consequent various reverse osmosis concentrated water, and the problem of environmental pollution that the high-salt wastewater of industrial circulating water etc. brings is more and more serious.Meanwhile, because the theoretical producing water ratio of reverse osmosis is only 75%, more than 70%, 30% strong brine of actual producing water ratio less than directly discharges because obtaining effective reuse, has wasted the water resources of a large amount of preciousnesses.
High salinity waste water, not only meeting etching apparatus in industrial production, directly discharge also can cause the salinity of environment water to significantly improve, cause soil compaction, plant to wither, bring serious negative impact to ecotope, therefore, country's strict restriction high-salt wastewater discharge, to reduce environmental pollution.Current, how economical, effectively carry out the processing of high-salt wastewater desalination, become the key issue of restriction reusing sewage.
Water quality desalination technology mainly contains ion-exchange, electrodialysis, multistage flash evaporation and multiple-effect evaporation etc.Ion exchange technique operation, operation complexity, be only applicable to process Low-salinity waste water; Electrodialysis can only partial deionization, and power consumption is higher; Multistage flash evaporation and multiple-effect evaporation energy consumption are large, and expense is high.The technology wherein the most often using is multiple-effect evaporation, multiple-effect evaporation is to allow the salt solution after heating evaporate in the vaporizer of multiple series connection, previous evaporator evaporation steam is out as the thermal source of next vaporizer, and condensation becomes fresh water, is one of method more energy-conservation in distillation method.
Electrodialysis (electrodialysis, ED) technology is the one of membrane separation technique, is to utilize yin, yang ion-exchange membrane alternative arrangement between positive and negative electrode, and is separated with special dividing plate, the desalination of composition desalination and concentrated two systems.When after the logical people's salt solution of compartment, under DC electric field effect, positively charged ion moves to negative pole, and can only pass through cationic exchange membrane, and negatively charged ion moves to positive pole, can only pass through anion-exchange membrane, and the salt solution in light chamber is desalinated, and the salt solution in dense chamber is concentrated.
Utility model content
The utility model object: for the high-salt wastewater of petroleum chemical enterprise and other enterprises, particularly petroleum chemical enterprise is that reuse sewage up to standard carries out the high-salt wastewater such as reverse osmosis concentrated water, Wastewater Form Circulating Cooling Water that reverse-osmosis treated obtains, a set of sewage disposal device is provided, the fully water resources in reuse high-salt wastewater, reduce high-salt wastewater and process energy consumption, improve the treatment effect of prior art.
The technical solution of the utility model is: a set of sewage disposal device, comprise the chemical settling pond, microbiological oxidation pond, micro-filtration pond and the multiple-effect evaporator that connect in turn, and between described micro-filtration pond and multiple-effect evaporator, add pole-reversing electroosmosis (EDR) device; Described multiple-effect evaporator liquid outlet is connected to outside recovery system; Waste residue outlet, the waste liquid outlet of pole-reversing electroosmosis (EDR) device and the waste liquid outlet of multiple-effect evaporator in the waste residue outlet in described chemical settling pond, the outlet of the waste residue in microbiological oxidation pond, micro-filtration pond is connected, is concentratedly delivered to external processing apparatus and focuses on by pipeline.
Further, described pole-reversing electroosmosis (EDR) device comprises several interconnective electrodialysis cell, described electrodialysis cell comprises anion-exchange membrane, cationic exchange membrane, dividing plate and battery lead plate, described anion-exchange membrane and cationic exchange membrane alternative arrangement are between two battery lead plates, and between anion-exchange membrane, cationic exchange membrane and two battery lead plates, all separate the desalination of composition desalination and concentrated two systems with dividing plate.
Further, between two battery lead plates of the electrodialysis cell of described pole-reversing electroosmosis (EDR) device and direct supply, be provided with for the electrode utmost point described in auto switching to controller, the positive pole of described direct supply and negative pole are electrically connected with the input terminus of described controller respectively, and two described electrodes are electrically connected with the output terminal of described controller respectively.
Further, described controller is PLC controller.
Further, described electrodialysis cell comprises desalination desalination system and concentration systems, and described desalination desalination system is provided with fresh water water-in and fresh water water outlet, and described concentration systems is provided with dense water water-in and dense water water outlet; The fresh water water-in of first step electrodialysis cell is connected with the water outlet of micro-filtration with dense water water-in, and the fresh water water outlet of first step electrodialysis cell is connected with the water-in of multiple-effect evaporator; The fresh water water-in of middle some grades of electrodialysis cell is all connected with the water-in of multiple-effect evaporator with dense water water outlet, the mouth of a river, fresh water place that dense water water-in is all connected previous stage, dense water water outlet is all connected with fresh water water-in and the dense water water-in of next stage electrodialysis cell; Waste liquid is passed into external processing apparatus by the dense water water outlet of last step.
Further, on the fresh water water outlet of described electrodialysis cell and the outlet conduit of dense water water outlet, be provided with the deep or light water sewer change valve that can freely convert fresh water and/or dense water water outlet direction.
The beneficial effects of the utility model are:
(1) the utility model is by chemical settling, microbiological oxidation, micro-filtration, electrodialysis and multiple-effect evaporation, can effectively process high-salt wastewater, and the present invention can effectively reduce the time of multiple-effect evaporation and the progression of multiple-effect evaporation through chemical settling, microbiological oxidation, micro-filtration and pole-reversing electroosmosis (EDR) device, save time and expense, the present invention simultaneously can adopt processed continuously mode, streamline operration, after all completing without each step, carry out again next step, saved the time.
(2) utilize the stronger resistance to oxidation, acid and alkali-resistance of pole-reversing electroosmosis (EDR) device, the ability of anticorrosive, resistant to hydrolysis; Influent quality is wide in range, be difficult for stopping up, ratio of desalinization can be selected arbitrarily design between 50%-90%, system recoveries expense is greater than 85%, and difficulty soluble salt produce in operational process dirty layer can dissolve switching after electrode; In electrodialysis when operation, is without Scale inhibitors, reductive agent etc.
(4) pole-reversing electroosmosis (EDR) apparatus system is simple, and the form of its standard module greatly reduces on-the-spot installation workload.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of the utility model waste disposal plant;
Fig. 2 is the system flowchart of the utility model pole-reversing electroosmosis (EDR) device.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, a set of sewage disposal device, comprises the chemical settling pond, microbiological oxidation pond, micro-filtration pond and the multiple-effect evaporator that connect in turn, adds pole-reversing electroosmosis (EDR) device between described micro-filtration pond and multiple-effect evaporator; Described multiple-effect evaporator liquid outlet is connected to outside recovery system; Waste residue outlet, the waste liquid outlet of pole-reversing electroosmosis (EDR) device and the waste liquid outlet of multiple-effect evaporator in the waste residue outlet in described chemical settling pond, the outlet of the waste residue in microbiological oxidation pond, micro-filtration pond is connected, is concentratedly delivered to external processing apparatus and focuses on by pipeline.
In the present embodiment, chemical settling pond is used for the insolubles such as calcium, magnesium falling in sedimentation high-salt wastewater, and regulates waste water ph; Microbiological oxidation pond is used for the organism in degrading waste water; Micro-filtration pond is used for the insolubles in the water outlet of filtering microorganism oxidation pond, to guarantee the influent quality of pole-reversing electroosmosis (EDR) device; Pole-reversing electroosmosis (EDR) device is used for high-salt wastewater to carry out pre-desalination, every a specified time (being generally 15～20min), positive and negative electrode polarity is switched (frequently pole-reversing) mutually, can automatically clean the dirt that ion-exchange membrane and electrode surface form, to guarantee the permanent stability of ion-exchange membrane efficiency and the water quality and quantity of fresh water; Multi-effect evaporating device is used for carrying out the desalination of high-salt wastewater.
Electrodialysis unit comprises several interconnective electrodialysis cell, electrodialysis cell comprises anion-exchange membrane, cationic exchange membrane, dividing plate and battery lead plate, wherein, anion-exchange membrane and cationic exchange membrane alternative arrangement are between two battery lead plates, and between anion-exchange membrane, cationic exchange membrane and two battery lead plates, all separate the desalination of composition desalination and concentrated two systems with dividing plate.Between two battery lead plates of electrodialysis cell and direct supply, be provided with for the electrode utmost point described in auto switching to PLC controller, the positive pole of direct supply and negative pole are electrically connected with the input terminus of PLC controller respectively, and two electrodes are electrically connected with the output terminal of PLC controller respectively.
As shown in Figure 2, the electrodialysis cell of pole-reversing electroosmosis (EDR) device comprises desalination desalination system and concentration systems, and described desalination desalination system is provided with fresh water water-in and fresh water water outlet, and described concentration systems is provided with dense water water-in and dense water water outlet; The fresh water water-in of first step electrodialysis cell is connected with the water outlet of micro-filtration with dense water water-in, and the fresh water water outlet of first step electrodialysis cell is connected with the water-in of multiple-effect evaporator; The fresh water water-in of middle some grades of electrodialysis cell is all connected with the water-in of multiple-effect evaporator with dense water water outlet, the mouth of a river, fresh water place that dense water water-in is all connected previous stage, dense water water outlet is all connected with fresh water water-in and the dense water water-in of next stage electrodialysis cell; Waste liquid is passed into external processing apparatus by the dense water water outlet of last step.Adopt EDR device to carry out pre-desalting treatment to high-salt wastewater, wherein multiple-effect evaporator carries out evaporation process; Demineralised liquid enters 1st effective evaporator, and concentrated solution enters secondary EDR, and secondary EDR demineralised liquid enters 1st effective evaporator, and secondary EDR concentrated solution enters three grades of EDR, so continues until reach desalting treatment requirement.
Further, on the fresh water water outlet of described electrodialysis cell and the outlet conduit of dense water water outlet, be provided with the deep or light water sewer change valve that can freely convert fresh water and/or dense water water outlet direction.In the time that the demineralised liquid saliferous rate in electrodialysis cell is higher, can control deep or light water sewer change valve, demineralised liquid is passed into next stage EDR and proceed desalting treatment.
The utility model is by chemical settling, microbiological oxidation, micro-filtration, electrodialysis and multiple-effect evaporation, can effectively process high-salt wastewater, and the present invention can effectively reduce the time of multiple-effect evaporation and the progression of multiple-effect evaporation through chemical settling, microbiological oxidation, micro-filtration and pole-reversing electroosmosis (EDR), save time and expense, the present invention simultaneously can adopt processed continuously mode, streamline operration, carries out next step after all completing without each step again, has saved the time.Utilize the stronger resistance to oxidation, acid and alkali-resistance of pole-reversing electroosmosis (EDR) device, the ability of anticorrosive, resistant to hydrolysis; Influent quality is wide in range, be difficult for stopping up, ratio of desalinization can be selected arbitrarily design between 50%-90%, system recoveries expense is greater than 85%, and difficulty soluble salt produce in operational process dirty layer can dissolve switching after electrode; In electrodialysis when operation, is without Scale inhibitors, reductive agent etc.Meanwhile, pole-reversing electroosmosis (EDR) apparatus system is simple, and the form of its standard module greatly reduces on-the-spot installation workload.
Although the utility model discloses as above with preferred embodiment, so it is not in order to limit the utility model.Under the utility model, in technical field, have and conventionally know the knowledgeable, not departing from spirit and scope of the present utility model, when being used for a variety of modifications and variations.Therefore, protection domain of the present utility model is when being as the criterion depending on claims person of defining.
Claims (6)
1. a set of sewage disposal device, comprises the chemical settling pond, microbiological oxidation pond, micro-filtration pond and the multiple-effect evaporator that connect in turn, it is characterized in that: between described micro-filtration pond and multiple-effect evaporator, add pole-reversing electroosmosis (EDR) device; Described multiple-effect evaporator liquid outlet is connected to outside recovery system; Waste residue outlet, the waste liquid outlet of pole-reversing electroosmosis (EDR) device and the waste liquid outlet of multiple-effect evaporator in the waste residue outlet in described chemical settling pond, the outlet of the waste residue in microbiological oxidation pond, micro-filtration pond is connected, is concentratedly delivered to external processing apparatus and focuses on by pipeline.
2. sewage disposal device according to claim 1, it is characterized in that: described pole-reversing electroosmosis (EDR) device comprises several interconnective electrodialysis cell, described electrodialysis cell comprises anion-exchange membrane, cationic exchange membrane, dividing plate and battery lead plate, described anion-exchange membrane and cationic exchange membrane alternative arrangement are between two battery lead plates, and between anion-exchange membrane, cationic exchange membrane and two battery lead plates, all separate the desalination of composition desalination and concentrated two systems with dividing plate.
3. sewage disposal device according to claim 2, it is characterized in that: between two battery lead plates of the electrodialysis cell of described pole-reversing electroosmosis (EDR) device and direct supply, be provided with for the electrode utmost point described in auto switching to controller, the positive pole of described direct supply and negative pole are electrically connected with the input terminus of described controller respectively, and two described electrodes are electrically connected with the output terminal of described controller respectively.
4. sewage disposal device according to claim 3, is characterized in that: described controller is PLC controller.
5. sewage disposal device according to claim 2, it is characterized in that: described electrodialysis cell comprises desalination desalination system and concentration systems, described desalination desalination system is provided with fresh water water-in and fresh water water outlet, and described concentration systems is provided with dense water water-in and dense water water outlet; The fresh water water-in of first step electrodialysis cell is connected with the water outlet of micro-filtration with dense water water-in, and the fresh water water outlet of first step electrodialysis cell is connected with the water-in of multiple-effect evaporator; The fresh water water-in of middle some grades of electrodialysis cell is all connected with the water-in of multiple-effect evaporator with dense water water outlet, the mouth of a river, fresh water place that dense water water-in is all connected previous stage, dense water water outlet is all connected with fresh water water-in and the dense water water-in of next stage electrodialysis cell; Waste liquid is passed into external processing apparatus by the dense water water outlet of last step.
6. sewage disposal device according to claim 5, is characterized in that: on the fresh water water outlet of described electrodialysis cell and the outlet conduit of dense water water outlet, be provided with the deep or light water sewer change valve that can freely convert fresh water and/or dense water water outlet direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420002199.7U CN203668181U (en) | 2014-01-02 | 2014-01-02 | Sewage treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420002199.7U CN203668181U (en) | 2014-01-02 | 2014-01-02 | Sewage treatment equipment |
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| CN203668181U true CN203668181U (en) | 2014-06-25 |
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| CN201420002199.7U Expired - Fee Related CN203668181U (en) | 2014-01-02 | 2014-01-02 | Sewage treatment equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609804A (en) * | 2018-05-04 | 2018-10-02 | 山东默锐环境产业股份有限公司 | A kind of BDP wastewater treatment methods |
| CN111115772A (en) * | 2020-02-27 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Waterway system and water purifying equipment |
-
2014
- 2014-01-02 CN CN201420002199.7U patent/CN203668181U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609804A (en) * | 2018-05-04 | 2018-10-02 | 山东默锐环境产业股份有限公司 | A kind of BDP wastewater treatment methods |
| CN108609804B (en) * | 2018-05-04 | 2021-12-03 | 山东默锐环境产业股份有限公司 | BDP wastewater treatment method |
| CN111115772A (en) * | 2020-02-27 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Waterway system and water purifying equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU DUBLE ENGINEERING CO, LTD. Free format text: FORMER OWNER: NANJING DUBLE METAL EQUIPMENT ENGINEERING CO., LTD. Effective date: 20150318 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 211100 NANJING, JIANGSU PROVINCE TO: 211155 NANJING, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150318 Address after: Jiangning District of Nanjing City, Jiangsu province 211155 Hengxi Street Cross Cloud Road No. 248 Patentee after: JIANGSU DUBLE ENGINEERING CO., LTD. Address before: 211100, No. 199, Guang Li Road, Gu Jie street, Jiangning District, Jiangsu, Nanjing Patentee before: Nanjing Duble Metal Equipment Engineering Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20200102 |