CN110627205A - Bioreactor - Google Patents
Bioreactor Download PDFInfo
- Publication number
- CN110627205A CN110627205A CN201911063393.XA CN201911063393A CN110627205A CN 110627205 A CN110627205 A CN 110627205A CN 201911063393 A CN201911063393 A CN 201911063393A CN 110627205 A CN110627205 A CN 110627205A
- Authority
- CN
- China
- Prior art keywords
- biochemical reaction
- biochemical
- bearing plate
- carrier layer
- reaction tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010802 sludge Substances 0.000 claims abstract description 38
- 238000005842 biochemical reaction Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000009826 distribution Methods 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 238000005273 aeration Methods 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000011001 backwashing Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 abstract description 18
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 9
- 230000015556 catabolic process Effects 0.000 abstract description 6
- 238000006731 degradation reaction Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 231100000614 poison Toxicity 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 abstract description 5
- 239000003440 toxic substance Substances 0.000 abstract description 5
- 230000005764 inhibitory process Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 230000000813 microbial effect Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 3
- 230000003301 hydrolyzing effect Effects 0.000 description 3
- 230000020477 pH reduction Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000588986 Alcaligenes Species 0.000 description 1
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002289 effect on microbe Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention relates to a bioreactor, which comprises a reactor body, wherein four biochemical reaction tanks are arranged in the reactor body, every two of the four biochemical reaction tanks are connected through a filter frame and a water distribution pipe, a water inlet pipe is arranged on the side surface of the top of the first biochemical reaction tank, and an overflow weir is arranged on the upper part of the fourth biochemical reaction tank; each biochemical pool is internally provided with a bearing plate, and the bearing plate is provided with a strain carrier layer. The invention has simple structure and reasonable design, improves the tolerance upper limit of the biochemical system to strong inhibition factors such as salt, toxic substances, sulfate ions, formaldehyde and the like, improves the stability and the degradation capability of the biochemical system in the field of chemical wastewater, and reduces the sludge production.
Description
Technical Field
The invention relates to a bioreactor, which is applied to anaerobic biological treatment technology of high-salt and high-toxicity organic wastewater.
Background
The chemical wastewater has complex pollutant components, high concentrations of organic matters, salt and the like, and obvious inhibition on a biochemical system, and the traditional anaerobic reactor is difficult to bear the impact of inhibitory and toxic substances, so that the system paralysis and the microbial death are easily caused, and the vicious circle of repeated debugging, failure and debugging and repeated mud feeding is involved; meanwhile, the sludge production is large, and a large amount of hazardous waste disposal cost is brought to enterprises.
The traditional activated sludge method and biofilm method have poor impact resistance to wastewater which is difficult to biochemically process and has complex components, high organic matter concentration, low B/C value, low toxicity and the like, the wastewater can not be started to run basically, the activated sludge is difficult to acclimate and mature, the sludge concentration is maintained, and sludge expansion is easy to generate after the system is inoculated with strains until the system is crashed.
Disclosure of Invention
The invention aims to: aiming at the defects of the prior art, the bioreactor is provided, the tolerance upper limit of a biochemical system to strong inhibition factors such as salt, toxic substances, sulfate ions, formaldehyde and the like is improved, the stability and the degradation capability of the biochemical system in the field of chemical wastewater are improved, the sludge production is reduced, the sludge concentration problem is solved, a more favorable microbial living environment is maintained, and the activity of bacteria clusters and the degradation effect of the system to pollutants are improved.
The technical scheme adopted by the invention is as follows: a bioreactor comprises a reactor body, wherein four biochemical reaction tanks are arranged in the reactor body, every two of the four biochemical reaction tanks are connected through a filter frame and a water distribution pipe, a water inlet pipe is arranged on the side surface of the top of a first biochemical reaction tank, and an overflow weir is arranged on the upper part of a fourth biochemical reaction tank; each biochemical pool is internally provided with a bearing plate, and the bearing plate is provided with a strain carrier layer.
In the present invention: the bottom of the biochemical reaction tank is provided with a sludge discharge pipe and an aeration pipe, the sludge discharge pipe is made of UPVC material and is used for discharging sludge periodically, and the sludge discharge mode adopts gravity sludge discharge; the aeration pipe is used for periodically back washing the carrier layer to prevent the carrier from being blocked to influence water flow and the living environment of strains.
In the present invention: the strain carrier layer is an active carbon strain carrier layer, and the mesh number of the active carbon is 1-6 meshes.
In the present invention: the bearing plate is made of a PP plate with the thickness of 20mm, and round holes with the diameter of 2mm are uniformly distributed on the surface of the bearing plate to serve as water flow channels.
After the technical scheme is adopted, the invention has the beneficial effects that: the invention has simple structure and reasonable design, improves the tolerance upper limit of the biochemical system to strong inhibition factors such as salt, toxic substances, sulfate ions, formaldehyde and the like, improves the stability and the degradation capability of the biochemical system in the field of chemical wastewater, reduces the sludge production, forms a stable carrier layer on the surface of the bearing plate, has huge specific surface area and enrichment effect on the carrier, has the adsorption effect on microorganisms more than 300 times of that of activated sludge, promotes the formation of microbial colonies through the adsorption effect, improves the agglomeration performance and the microbial colony activity of the activated sludge, quickly promotes the sludge concentration to a reasonable level and stably maintains the sludge concentration, and simultaneously inhibits the sludge expansion.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a support plate.
In the figure: 1. a support plate; 2. a biochemical reaction tank; 3. a filter frame; 4. a water inlet pipe; 5. a circular hole; 6. an overflow weir; 7. a strain carrier layer; 8. a sludge discharge pipe; 9. aeration pipe, 10 water distribution pipe.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-2, a bioreactor comprises a reactor body, wherein four biochemical reaction tanks 2 are arranged in the reactor body, every two biochemical reaction tanks 2 are connected through a filter frame 3 and a water distribution pipe 10, a water inlet pipe 4 is arranged on the side surface of the top of the first biochemical reaction tank 3, and an overflow weir 6 is arranged on the upper part of the fourth biochemical reaction tank 2; a bearing plate 1 is arranged in each biochemical pool 2, a strain carrier layer 7 is arranged on the bearing plate 1, the strain carrier layer 7 is an activated carbon strain carrier layer, and the mesh number of the activated carbon is 1-6 meshes; the bearing plate 1 is made of a PP plate with the thickness of 20mm, and round holes 5 with the diameter of 2mm are uniformly distributed on the surface of the bearing plate 1 and are used as water flow channels.
The bottom of the biochemical reaction tank 2 is provided with a sludge discharge pipe 8 and an aeration pipe 9, the sludge discharge pipe 8 is made of UPVC material and is used for discharging sludge at regular intervals, and the sludge discharge mode adopts gravity sludge discharge (sludge accumulation amount reaches the end, sludge at the bottom is pressed out through the sludge discharge pipe by self weight, and can also be pumped out through a sludge pump); the aeration pipe 9 is used for periodically back washing the carrier layer to prevent the carrier from being blocked to influence water flow and the living environment of strains.
When the biochemical reaction tank is specifically implemented, water enters the first grid biochemical reaction tank 2 from the top side water inlet pipe 4, is guided to the bottom of the tank by a pipeline to be uniformly distributed, and passes through the strain carrier layer 7 and the strainAfter full contact degradation, the wastewater overflows into the water distribution pipe through the filter frame 3 to the next biochemical reaction tank 2, the whole body is in a plug flow state, an upflow state is formed in each grid, and the wastewater is collected and discharged from an overflow weir 6 of the biochemical reaction tank 2 of the fourth grid after being biodegraded in the four biochemical reaction tanks 2. Adding strain carrier into the four-grid biochemical reaction tank 2, wherein the carrier is 1-6 mesh strain special carrier activated carbon, and the adding amount is 0.05 ton/m3(ii) a And adding DPTB high-efficiency composite strain into the biochemical reaction tank 2, wherein the adding amount is 0.2KG/m3。
The strain carrier has strong adsorption capacity and specific surface area, and is inoculated with efficient DPTB composite microbial strains. A large amount of microorganisms can be adsorbed on the surface of the carrier, so that the effect of a fixed bed is achieved, and the living environment of the microorganisms is greatly improved; meanwhile, the method is more favorable for the sufficient contact of microorganisms and pollutants, improves the conversion efficiency and finally forms biological cenobium. Domesticating and culturing. The biochemical pool forms microbial environment and microecological balance mainly comprising hydrolytic acidification flora and alkali producing bacillus flora. The wastewater is contacted with strains growing on a carrier in a DPABR biochemical pool, macromolecular insoluble organic matters in the wastewater are firstly hydrolyzed into micromolecular soluble organic matters by hydrolytic bacteria, then the micromolecular soluble organic matters are acidified into lower fatty acids such as acetic acid by acidification bacteria, and then the lower fatty acids are converted into stable inorganic substances by the alcaligenes by taking H & lt + & gt in the wastewater as an electron acceptor, so that the hydrolytic acidification of organic pollutants is realized. The system has strong adaptability to chemical wastewater difficult to be biochemically treated, and can improve the tolerance limit value of inhibitory factors such as salt, toxic substances and the like to several times to several hundred times.
The DPABR biochemical pool is divided into 4 biochemical reaction pools, each biochemical reaction pool is of an upflow reaction type, namely, wastewater is distributed by a water distribution pipe at the bottom and then passes through a carrier layer in an upflow mode, the hydraulic characteristic is close to a complete mixing type, and the whole reactor is of a plug flow type. The wastewater flows into the reaction chambers and then flows upwards and downwards in a baffling way to sequentially pass through the carrier layer of each reaction chamber, and organic matters in the wastewater are removed by fully contacting with microorganisms. The whole system has excellent hydraulic conditions and provides a good environment for the survival of microorganisms and the degradation of pollutants.
The wastewater in the reaction chamber runs up and down under the flowing action of the wastewater, and due to the blocking action of the carrier layer and the self-sedimentation property of the sludge, the sludge generated in the treatment process is intercepted in the reaction chamber, the residual sludge yield of the whole system is only 10 percent of that of the traditional ABR, and the subsequent sludge treatment cost is greatly reduced.
The above description is directed to specific embodiments of the present invention, but the present invention is not limited to the above description. Any equivalent modifications and alterations to this technical solution would be considered within the scope of this invention by those skilled in the art. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (4)
1. A bioreactor comprising a reactor body, characterized in that: the reactor body is internally provided with four biochemical reaction tanks, every two of the four biochemical reaction tanks are connected through a filter frame and a water distribution pipe, the side surface of the top of the first biochemical reaction tank is provided with a water inlet pipe, and the upper part of the fourth biochemical reaction tank is provided with an overflow weir; each biochemical pool is internally provided with a bearing plate, and the bearing plate is provided with a strain carrier layer.
2. A bioreactor according to claim 1, wherein: the bottom of the biochemical reaction tank is provided with a sludge discharge pipe and an aeration pipe, the sludge discharge pipe is made of UPVC material and is used for discharging sludge periodically, and the sludge discharge mode adopts gravity sludge discharge; the aeration pipe is used for periodically back washing the carrier layer to prevent the carrier from being blocked to influence water flow and the living environment of strains.
3. A bioreactor according to claims 1-2, characterized in that: the strain carrier layer is an active carbon strain carrier layer, and the mesh number of the active carbon is 1-6 meshes.
4. A bioreactor according to claim 1, wherein: the bearing plate is made of a PP plate with the thickness of 20mm, and round holes with the diameter of 2mm are uniformly distributed on the surface of the bearing plate to serve as water flow channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063393.XA CN110627205A (en) | 2019-11-04 | 2019-11-04 | Bioreactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063393.XA CN110627205A (en) | 2019-11-04 | 2019-11-04 | Bioreactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110627205A true CN110627205A (en) | 2019-12-31 |
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ID=68978742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911063393.XA Pending CN110627205A (en) | 2019-11-04 | 2019-11-04 | Bioreactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110627205A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113336330A (en) * | 2021-06-12 | 2021-09-03 | 山东澜清源净化科技有限公司 | Stable water treatment efficient anaerobic reaction device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776570A (en) * | 2016-03-23 | 2016-07-20 | 煤科集团杭州环保研究院有限公司 | High-density biological thickening reactor and method using same to treat high-salinity high-ammonia-hydrogen organic chemical industrial wastewater |
| CN105819617A (en) * | 2016-03-28 | 2016-08-03 | 煤科集团杭州环保研究院有限公司 | Biological thickening treatment method and biological thickening device for high-salt organic chemical waste water |
-
2019
- 2019-11-04 CN CN201911063393.XA patent/CN110627205A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776570A (en) * | 2016-03-23 | 2016-07-20 | 煤科集团杭州环保研究院有限公司 | High-density biological thickening reactor and method using same to treat high-salinity high-ammonia-hydrogen organic chemical industrial wastewater |
| CN105819617A (en) * | 2016-03-28 | 2016-08-03 | 煤科集团杭州环保研究院有限公司 | Biological thickening treatment method and biological thickening device for high-salt organic chemical waste water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113336330A (en) * | 2021-06-12 | 2021-09-03 | 山东澜清源净化科技有限公司 | Stable water treatment efficient anaerobic reaction device |
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