CN111233138A - Integrated bioreactor for pretreating high-concentration organic wastewater - Google Patents
Integrated bioreactor for pretreating high-concentration organic wastewater Download PDFInfo
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- CN111233138A CN111233138A CN202010117386.XA CN202010117386A CN111233138A CN 111233138 A CN111233138 A CN 111233138A CN 202010117386 A CN202010117386 A CN 202010117386A CN 111233138 A CN111233138 A CN 111233138A
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- water
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
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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
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
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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
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention relates to an integrated bioreactor for pretreating high-concentration organic wastewater, which comprises a water inlet pump, a reactor main body, a full mixer, a separating mechanism and a water producing pump, wherein the separating mechanism is arranged at the upper part in the reactor main body, the full mixer is arranged at the lower part in the reactor main body, a mixing component is arranged in the full mixer, the separating mechanism comprises an overflow water collecting tank and a water producing filtering membrane component, an overflow port is arranged between the top end of the overflow water collecting tank and the top end in the reactor main body, the water producing filtering membrane component is communicated with the water producing pump through a water outlet pipeline, the high-concentration organic wastewater enters the reactor main body through the water inlet pump, the water quantity is uniformly distributed through a water inlet distributor, the wastewater and sludge are fully mixed through the mixing component, the effluent overflows into the overflow water collecting tank, the separation of the wastewater and the sludge is realized through the water producing filtering membrane component and the water producing pump, a reaction, effectively save equipment area, realize the preliminary treatment of high concentration organic waste water, reduce waste water treatment cost.
Description
Technical Field
The invention relates to a wastewater treatment reactor, in particular to an integrated bioreactor for pretreating high-concentration organic wastewater.
Background
With the increasing strictness of environmental requirements, the treatment of high-concentration organic wastewater has become a serious problem for enterprises. The prior pretreatment process technology of high-concentration wastewater comprises wet oxidation, supercritical oxidation, ultraviolet advanced oxidation, electrolysis, evaporative concentration and the like, and has the defects of high investment and operation cost, severe operation conditions and the like. Meanwhile, the national environmental protection requirement is increasingly strict, the emission requirement is further improved, and the COD concentration of the treated discharged wastewater is required to be increased from 60mg/L to 40mg/L, even 30mg/L, so that the high-concentration wastewater which is not effectively pretreated is directly mixed into wastewater with relatively low pollutant concentration for treatment, the whole sewage treatment system cannot stably operate, even the quality of treated effluent exceeds the standard, and the high-concentration wastewater generally has the characteristics of small quantity and high concentration and is required to be subjected to quality separation treatment with other types of wastewater. Therefore, it is necessary to develop a bioreactor for pretreating high-concentration organic wastewater, which can not only effectively remove high-concentration pollutants, but also reduce the investment and operation cost of production enterprises.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provides an integrated bioreactor for pretreating high-concentration organic wastewater.
The invention is realized by the following technical scheme:
the utility model provides a preliminary treatment high concentration organic waste water integration bioreactor, its characterized in that includes intake pump, reactor main part, mixes ware, separating mechanism and product water pump entirely, separating mechanism locates upper portion in the reactor main part, the lower part in the reactor main part is located to the ware that mixes entirely, and the ware that mixes entirely is provided with a plurality ofly, the ware that mixes entirely is linked together through the water distributor that intakes with the intake pump, is equipped with mixed subassembly in the ware that mixes entirely, separating mechanism includes the overflow water catch bowl and locates the filtration product water membrane subassembly in the overflow water catch bowl, be equipped with the overflow mouth between overflow water catch bowl top and the inside top of reactor main part, it is linked together through outlet conduit with the product water pump to filter the product water membrane subassembly.
According to the above technical solution, preferably, the total mixer is provided with 3.
According to the above technical scheme, preferably, the mixing assembly includes an aeration fan, a mixed aeration gas distributor and a lifting paddle, the aeration fan is disposed outside the reactor main body, each mixed aeration gas distributor is respectively disposed opposite to the lower end of each full mixer, the aeration fan is connected with the mixed aeration gas distributor, and the lifting paddle is disposed at the inner upper end of each full mixer.
According to the above technical scheme, preferably, overflow water catch bowl bottom surface intercommunication row mud pipeline, row mud pipeline upper end is equipped with row mud pneumatic valve, and row mud pipeline lower extreme extends to reactor main part inner wall direction.
According to the technical scheme, preferably, a membrane module pneumatic purging device is arranged in the overflow water collecting tank, the membrane module pneumatic purging device is arranged opposite to the water filtering and producing membrane module, the membrane module pneumatic purging device is communicated with the aeration fan, and the water filtering and producing membrane module is communicated with a backwashing pump towards the outside of the reactor main body.
According to the technical scheme, preferably, a sludge aeration gas distributor is arranged at the bottom in the reactor main body.
According to the technical scheme, preferably, a liquid level meter is arranged at the upper part of the side wall of the overflow water collecting tank.
The invention has the beneficial effects that:
the integrated bioreactor for pretreating high-concentration organic wastewater disclosed by the invention has the advantages that a reaction area and a separating mechanism are integrally designed, so that the floor area of equipment is effectively saved, the pretreatment of the high-concentration organic wastewater can be realized, the treated effluent can be subjected to subsequent conventional sewage treatment, and the wastewater treatment cost is reduced.
Drawings
Fig. 1 is a schematic front view of the present invention.
In the figure: 1. a reactor body; 2. a water inlet pump; 3. a water inlet distributor; 4. an aeration fan; 5. a mixed aeration gas distributor; 6. a complete mixer; 7. lifting the paddle; 8. an overflow water collection tank; 9. a filtering water-producing membrane component; 10. a water production pump; 11. a sludge discharge pneumatic valve; 12. a membrane module pneumatic purging device; 13. a backwash pump; 14. a sludge aeration gas distributor; 15. a water flow meter; 16. an air volume flow meter; 17. a liquid level meter.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
As shown in the figure, the invention comprises a water inlet pump 2, a reactor main body 1, a full mixer 6, a separation mechanism and a water producing pump 10, wherein the separation mechanism is arranged at the upper part in the reactor main body 1, the water inlet pump 2 and the water producing pump 10 are both arranged outside the reactor main body 1, the water inlet quantity of the water inlet pump 2 is adjusted according to a water flow meter 15 in the embodiment, the full mixer 6 is arranged at the lower part in the reactor main body 1, the full mixer 6 is provided with a plurality of full mixers 6, a reaction zone is arranged below the separation mechanism, the full mixer 6 is arranged in the reaction zone, the full mixer 6 is communicated with the water inlet pump 2 through a water inlet distributor 3, a mixing component is arranged in the full mixer 6, the separation mechanism comprises an overflow water collecting tank 8 and a filtration water producing membrane component 9 arranged in the overflow water collecting tank 8, an overflow port is arranged between the top end of the overflow water collecting tank 8 and the top end in the reactor main body 1, the filtration water producing membrane, the water filtering and producing membrane assembly 9 comprises a water treatment filtering membrane, and the wastewater and the sludge are separated under the action of the water producing pump 10, so that the sludge is separated outside the water treatment filtering membrane of the water filtering and producing membrane assembly 9. The SBR sewage treating process is one type of modern active sludge process, and includes the steps of water filling, biochemical reaction, deposition, draining, etc. in a reactor with aerating and stirring unit and through preset program. The technology has the following characteristics: the sludge concentration is higher, the volume load is large, and the occupied area is saved; aerobic and anoxic processes can be simultaneously carried out in one reactor, and decarburization and denitrification can be simultaneously carried out; the operation load is flexible, and the sludge bulking phenomenon does not exist; high automation degree, low labor intensity of operators and low operating cost. The high-concentration organic wastewater enters the reactor main body 1 through the water inlet pump 2, the water quantity is uniformly distributed through the water inlet distributor 3, the wastewater and the sludge are fully mixed through the mixing component, the outlet water overflows into the overflow water collecting tank 8, and the wastewater is separated from the sludge through the filtration water production membrane component 9 and the water production pump 10.
According to the above embodiment, preferably, the total mixer 6 is provided with 3, and the high-concentration wastewater entering the reactor main body 1 is uniformly distributed in water quantity through the water inlet distributor 3.
According to the above embodiment, preferably, the mixing assembly comprises an aeration fan 4, a mixed aeration gas distributor 5 and a lifting paddle 7, the aeration fan 4 is arranged outside the reactor main body 1, the air output of the aeration fan 4 is adjusted according to an air flow meter 16, each mixed aeration gas distributor 5 is respectively arranged opposite to the lower end of each full mixer 6, the aeration fan 4 is connected with the mixed aeration gas distributor 5, and the lifting paddle 7 is arranged at the inner upper end of the full mixer 6. Under the mechanical force double lifting and mixing action of the mixed aeration gas distributor 5 and the stirring paddle, the high-concentration wastewater can form a non-gradient full-mixing state with fluid in the reactor in a very short time after entering the reactor, the oxygen utilization rate can be improved to more than 20 percent, and the low-cost biochemical treatment of the high-concentration wastewater is realized.
According to the above-mentioned embodiment, preferably, 8 bottom surface intercommunications of overflow water catch bowl arrange the mud pipeline, arrange the mud pipeline upper end and be equipped with row mud pneumatic valve 11, 8 bottom surfaces of overflow water catch bowl are the cone structure, 8 bottom surfaces of overflow water catch bowl bottom and row mud pipeline intercommunication, the mud after the separation of being convenient for is discharged in the overflow water catch bowl 8, and row mud pipeline lower extreme extends to 1 inner wall direction of reactor main part, and mud returns to 1 bottom of reactor main part through row mud pneumatic valve 11, avoids the mud after the filtration to gather in overflow water catch bowl 8.
According to the above embodiment, preferably, a membrane module pneumatic purging device 12 is arranged in the overflow water collecting tank 8, the membrane module pneumatic purging device 12 is arranged opposite to the filtration water production membrane module 9, the membrane module pneumatic purging device 12 is communicated with the aeration fan 4, and the filtration water production membrane module 9 is communicated with the backwashing pump 13 to the outside of the reactor main body 1. The device can regularly blow and backwash the water-producing filtering membrane assembly 9, and effectively avoids sludge deposition on the surface of the water-treating filtering membrane in the water-producing filtering membrane assembly 9.
According to the above embodiment, preferably, the inner bottom of the reactor body 1 is provided with a sludge aeration gas distributor 14. The separated sludge is deposited in the bottom area of the reactor main body 1, and after the sludge is decomposed and modified, compressed air is introduced through the sludge aeration air distributor 14, so that the modified sludge enters the reaction zone again for reaction, the amount of the excess sludge can be effectively reduced, and the pollutant degradation effect can be improved.
According to the above embodiment, preferably, the upper part of the sidewall of the overflow water collecting tank 8 is provided with the liquid level meter 17, and the start and stop of the water producing pump 10 are controlled by the liquid level meter 17 in the overflow water collecting tank 8.
The high-concentration organic wastewater enters the reactor main body 1 through the water inlet pump 2, the water quantity is uniformly distributed through the full mixer 6, the wastewater and the sludge are fully mixed through the mixing component, the effluent overflows into the overflow water collecting tank 8, and the wastewater and the sludge are separated through the filtration water production membrane component 9 and the water production pump 10.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a preliminary treatment high concentration organic waste water integration bioreactor, its characterized in that includes intake pump, reactor main part, mixes ware, separating mechanism and product water pump entirely, separating mechanism locates upper portion in the reactor main part, the lower part in the reactor main part is located to the ware that mixes entirely, and the ware that mixes entirely is provided with a plurality ofly, the ware that mixes entirely is linked together through the water distributor that intakes with the intake pump, is equipped with mixed subassembly in the ware that mixes entirely, separating mechanism includes the overflow water catch bowl and locates the filtration product water membrane subassembly in the overflow water catch bowl, be equipped with the overflow mouth between overflow water catch bowl top and the inside top of reactor main part, it is linked together through outlet conduit with the product water pump to filter the product water membrane subassembly.
2. The integrated bioreactor for pretreating high-concentration organic wastewater according to claim 1, wherein the total number of the mixers is 3.
3. The integrated bioreactor for pretreating high-concentration organic wastewater according to claim 1, wherein the mixing assembly comprises an aeration fan, a mixed aeration gas distributor and lifting paddles, the aeration fan is arranged outside the reactor main body, each mixed aeration gas distributor is respectively arranged opposite to the lower end of each full mixer, the aeration fan is connected with the mixed aeration gas distributor, and the lifting paddles are arranged at the inner upper end of each full mixer.
4. The integrated bioreactor for pretreating high-concentration organic wastewater according to claim 3, wherein the bottom surface of the overflow water collecting tank is communicated with a sludge discharge pipeline, a sludge discharge pneumatic valve is arranged at the upper end of the sludge discharge pipeline, and the lower end of the sludge discharge pipeline extends towards the inner wall of the reactor main body.
5. The integrated bioreactor for pretreating high-concentration organic wastewater according to claim 4, wherein a membrane module pneumatic purging device is arranged in the overflow water collecting tank, the membrane module pneumatic purging device is arranged opposite to the filtration water production membrane module, the membrane module pneumatic purging device is communicated with an aeration fan, and the filtration water production membrane module is communicated with a backwashing pump to the outside of the reactor main body.
6. The integrated bioreactor for pretreating high-concentration organic wastewater according to claim 5, wherein a sludge aeration gas distributor is arranged at the bottom in the reactor body.
7. The integrated bioreactor for pretreating high-concentration organic wastewater according to any one of claims 1 to 6, wherein a liquid level meter is arranged at the upper part of the side wall of the overflow water collecting tank.
Priority Applications (1)
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CN202010117386.XA CN111233138A (en) | 2020-02-25 | 2020-02-25 | Integrated bioreactor for pretreating high-concentration organic wastewater |
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CN202010117386.XA CN111233138A (en) | 2020-02-25 | 2020-02-25 | Integrated bioreactor for pretreating high-concentration organic wastewater |
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CN202010117386.XA Withdrawn CN111233138A (en) | 2020-02-25 | 2020-02-25 | Integrated bioreactor for pretreating high-concentration organic wastewater |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120138527A1 (en) * | 2010-12-06 | 2012-06-07 | Nanjing University | Integrated bioreactor and method of using the same for treatment of highly-concentrated organic wastewater |
CN107651749A (en) * | 2017-10-31 | 2018-02-02 | 中海油天津化工研究设计院有限公司 | A kind of integrated bioreactor of pre-treating high concentration oil refining wastewater |
-
2020
- 2020-02-25 CN CN202010117386.XA patent/CN111233138A/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120138527A1 (en) * | 2010-12-06 | 2012-06-07 | Nanjing University | Integrated bioreactor and method of using the same for treatment of highly-concentrated organic wastewater |
CN107651749A (en) * | 2017-10-31 | 2018-02-02 | 中海油天津化工研究设计院有限公司 | A kind of integrated bioreactor of pre-treating high concentration oil refining wastewater |
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