CN113060832A - UBF anaerobic reactor based on biological carbon carrier - Google Patents
UBF anaerobic reactor based on biological carbon carrier Download PDFInfo
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- CN113060832A CN113060832A CN202010003416.4A CN202010003416A CN113060832A CN 113060832 A CN113060832 A CN 113060832A CN 202010003416 A CN202010003416 A CN 202010003416A CN 113060832 A CN113060832 A CN 113060832A
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- retort
- water
- biochar
- reaction tank
- anaerobic reactor
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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
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
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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
- C02F3/28—Anaerobic digestion processes
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
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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
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
- C02F3/2893—Particular arrangements for anaerobic reactors with biogas recycling
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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
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
- C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
Abstract
The invention discloses a UBF anaerobic reactor based on a biochar carrier, which comprises a reaction tank, wherein a biological packing layer is arranged at the upper part of the reaction tank, a water inlet pipe is arranged at one side of the reaction tank, a sludge discharge pipe is arranged at one side of the reaction tank, and the reaction tank is sequentially provided with a sludge discharge pipe, a water distributor, a granular sludge layer, a biological packing layer, a water outlet weir and an air collecting port from bottom to top.
Description
Technical Field
The invention relates to the field of industrial wastewater treatment, in particular to a UBF anaerobic reaction based on a biochar carrier.
Background
The conventional anaerobic reactor always has the defect that microorganisms are lost along with effluent, for example, a three-phase separator is arranged at the upper part of a USAB reactor, but the three-phase separator generally has the defect of low gas-liquid-solid three-phase separation efficiency, an MBR (membrane bioreactor) adopts a membrane separation technology to intercept the microorganisms, a high amount of activated sludge is obtained in the reactor by taking a biological membrane as a medium, but the pollution of the biological membrane can be caused generally, the biological performance of the membrane is influenced, the physical permeability of the membrane is changed, the due filtering effect can not be achieved, the biological membrane needs to be cleaned regularly by manpower and material resources, and the anaerobic reactor can not well carry out anaerobic digestion treatment on sewage.
Disclosure of Invention
Therefore, how to solve the problems of small microbial quantity, low treatment load and poor load impact resistance of the existing anaerobic reactor is the problem to be solved at present.
The invention aims to overcome the problems of microorganism loss along with effluent, low anaerobic digestion capability, poor load impact resistance and membrane pollution in the current anaerobic reactor, and provides a biological carbon carrier-based UBF anaerobic reactor.
The invention is realized by the following steps: the device comprises a reaction tank, wherein a biological packing layer is arranged at the upper part of the reaction tank, a water inlet pipe is arranged at one side of the reaction tank, the water inlet pipe extends into the reaction tank and is connected with a water distribution pipe, a sludge discharge pipe is arranged at one side of the reaction tank, a water outlet weir is connected with the water inlet pipe through a return pipe, the reaction tank is sequentially provided with a sludge discharge pipe, a water distributor, a granular sludge layer, the biological packing layer, a water outlet weir and a gas collection port from bottom to top, biochar provides good carriers for the growth and the propagation of microorganisms, the interspecific electron transfer of the microorganisms is improved through rich functional groups on the surface of the biochar, the anaerobic digestion capacity of the anaerobic microorganisms on sewage is improved, the anaerobic microorganisms in the reaction tank are mainly present in a biological film on the surface of a filter material through a biological packing layer bed, the quantity and the activity of the microorganisms in the reaction tank are improved, has the characteristics of simple operation, high treatment efficiency and the like.
Foretell UBF anaerobic reactor based on biological carbon carrier, including the retort, upper portion is equipped with the bio-packing layer in the retort, and the bio-packing layer contains biological charcoal, retort one side is provided with the inlet tube, there are butterfly valve and check valve on the inlet tube, the inlet tube extends to and is connected with the water distributor in the reactor, retort one side is equipped with the mud delivery pipe, there is the stop valve on the mud delivery pipe, granular sludge layer contains biological carbon carrier in the retort, retort upper portion is equipped with out the water weir, it passes through the back flow connection to go out water weir and inlet tube, the back flow sets up in retort one side, installs the backwash pump, retort upper portion is provided with the gas collection mouth.
The UBF anaerobic reactor based on the biochar carrier is characterized in that: and a reflecting cone is arranged at the bottom of the reaction tank.
The UBF anaerobic reactor based on the biochar carrier is characterized in that: the water inlet speed of the water inlet pipe is less than 1 m/s.
The UBF anaerobic reactor based on the biochar carrier is characterized in that: 4 water-distribution pipes are installed at the tail end of the water inlet pipe, 45-degree included angles are formed between the 4 water-distribution pipes and the horizontal axis and between the 4 water-distribution pipes and the vertical axis respectively, and water distributors are installed on the 4 water-distribution pipes respectively.
The UBF anaerobic reactor based on the biochar carrier is characterized in that: the granular sludge layer is provided with a biochar carrier, the biochar particles are small and are suspended in a reaction tank, a substrate can be in full and frequent contact with the biochar, anaerobic microorganisms in the reaction tank are agglomerated on the biochar carrier, and a suspended granular sludge fluidized bed is formed at the lower part of the reaction tank under the dual actions of gravity and ascending flow speed.
The UBF anaerobic reactor based on the biochar carrier is characterized in that: retort upper portion sets up the biological charcoal packing layer, comprises nylon wire parcel large granule biological charcoal, and thickness is 1/4 of retort height, fills 1/3 volume department on retort upper portion, goes out water and passes through the filtering layer, and loose mud that does not depend on the biological charcoal carrier is held back, and the microorganism adsorbs on the biological charcoal filtering layer retort upper portion forms the biological charcoal biomembrane, has reduced the mud loss, has improved the quantity of microorganism in the retort.
The UBF anaerobic reactor based on the biochar carrier is characterized in that: the top of the reaction tank is provided with a gas collecting port, so that the biogas generated by anaerobic digestion of the sewage can be conveniently collected.
Drawings
FIG. 1 is a schematic view of the overall apparatus of the present invention; FIG. 2 is a schematic view of a part of the structure of the water distribution pipe of the present invention.
In the figure: 1-gas collecting port, 2-reaction tank, 3-effluent weir, 4-reflux pipe, 5-reflux pump, 6-water inlet pipe, 7-butterfly valve, 8-check valve, 9-water distributor, 10-water distributor, 11-reflection cone, 12-sludge discharge pipe, 13-stop valve, 14-granular sludge layer and 15-biological packing layer.
Detailed Description
The invention is further described below with reference to specific examples.
Example (b): a UBF anaerobic reactor based on biological carbon is disclosed as figure 1 and figure 2, comprising a reaction tank 2, wherein a biological packing layer 15 is arranged at the upper part in the reaction tank 2, the biological packing layer 15 has biological carbon, after effluent passes through a filtering layer, loose sludge which is not attached to a biological carbon carrier is intercepted, microorganisms are adsorbed on the surface of the biological carbon filtering layer through an attached film, a biological film is formed at the upper part of the reaction tank, the loss of the sludge is reduced, sufficient microorganism biomass is ensured in the reactor, the load impact resistance of the reactor is improved, a granular sludge layer 14 is arranged at the bottom of the reaction tank 2, the granular sludge layer 14 contains the biological carbon as a carrier for microorganism cluster aggregation, the activity of the microorganisms is improved by the macroporosity and rich polar functional groups on the surface of the biological carbon, the pH value of anaerobic digestion of sewage is adjusted, the inter-species electron transfer capability of the microorganisms is improved, under the dual actions of gravity and rising flow velocity, the full contact of microorganisms and sewage is realized, a suspended sludge fluidized bed is formed at the lower part of a reaction tank, a water inlet pipe 6 is arranged at one side of the reaction tank 2, a butterfly valve 7 and a check valve 8 are arranged on the water inlet pipe 6, the butterfly valve 7 controls the water inflow, the check valve 8 prevents the backflow of the sewage in the reaction tank 2 under the condition that a valve is not closed at the initial stage when a reflux pump 5 stops running, the water inlet pipe 9 is connected with a water distribution pipe 9 on the axis of the reaction tank 2, the water distribution pipe 9 is circularly distributed by taking the axis of the reaction tank 2 as the center of a circle, a water distributor 10 is arranged at the tail end of the water distribution pipe 9, the sewage is in full contact with the microorganisms through the water distributor 10 and a reflecting cone 11 at the bottom of the reaction tank 2, the full stirring effect on a sludge layer is realized, the existence of 'short flow' and 'dead zone' is avoided, a sludge discharge pipe 12 is, install stop valve 13 on the mud delivery pipe 12, stop valve 13 control the discharge of mud in retort 2, improve retort 2's organic load rate, the effluent weir 3 on retort 2 upper portion is stored to the sewage that has handled, there is back flow 4 under the effluent weir 3, back flow 4 installs backwash pump 5 control sewage reflux volume, the sewage that the effluent weir 3 was stored passes through the back flow and flows back in inlet tube 9, the realization is to the abundant decomposition of organic matter in the sewage, the clearance rate of COD is improved, retort 2 top is equipped with gas collection mouth 1, gas collection mouth 1 is favorable to collecting the storage to the marsh gas that sewage anaerobic digestion produced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention, and equivalents and modifications made based on the technical solution of the present invention and the inventive concept thereof, within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a UBF anaerobic reactor based on biological carbon carrier, includes the retort, upper portion is equipped with the bio-packing layer in the retort, and the bio-packing layer contains biological carbon, retort one side is equipped with the inlet tube, there are butterfly valve and check valve on the inlet tube, the inlet tube extends to and is connected with the water distributor in the reactor, retort one side is equipped with the sludge discharge pipe, there is the stop valve on the sludge discharge pipe, granular sludge layer contains biological carbon carrier in the retort, retort upper portion is equipped with out the water weir, it passes through the back flow with the inlet tube and connects to go out the water weir, the back flow sets up in retort one side, installs the backwash pump, retort upper portion is provided with the gas collection mouth.
2. The biochar-based UBF anaerobic reactor according to claim 1, wherein: and a reflecting cone is arranged at the bottom of the reaction tank.
3. The biochar-based UBF anaerobic reactor according to claim 1, wherein: the water inlet speed of the water inlet pipe is less than 1 m/s.
4. The biochar-based UBF anaerobic reactor according to claim 1, wherein: 4 water-distribution pipes are installed at the tail end of the water inlet pipe, 45-degree included angles are formed between the 4 water-distribution pipes and the horizontal axis and between the 4 water-distribution pipes and the vertical axis respectively, and water distributors are installed on the 4 water-distribution pipes respectively.
5. The biochar-based UBF anaerobic reactor according to claim 1, wherein: the granular sludge layer is provided with a biochar carrier, the biochar particles are small and are suspended in a reaction tank, a substrate can be in full and frequent contact with the biochar, anaerobic microorganisms in the reaction tank are agglomerated on the biochar carrier, and a suspended granular sludge fluidized bed is formed at the lower part of the reaction tank under the dual actions of gravity and ascending flow speed.
6. The biochar-based UBF anaerobic reactor according to claim 1, wherein: retort upper portion sets up the biological charcoal packing layer, comprises nylon wire parcel large granule biological charcoal, and thickness is 1/4 of retort height, fills 1/3 volume department on retort upper portion, goes out water and passes through the filtering layer, and loose mud that does not depend on the biological charcoal carrier is held back, and the microorganism adsorbs on the biological charcoal filtering layer retort upper portion forms the biological charcoal biomembrane, has reduced the mud loss of flow, has improved the quantity of microorganism in the retort.
7. The biochar-based UBF anaerobic reactor according to claim 1, wherein: the top of the reaction tank is provided with a gas collecting port, so that the biogas generated by anaerobic digestion of the sewage can be conveniently collected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010003416.4A CN113060832A (en) | 2020-01-02 | 2020-01-02 | UBF anaerobic reactor based on biological carbon carrier |
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| CN202010003416.4A CN113060832A (en) | 2020-01-02 | 2020-01-02 | UBF anaerobic reactor based on biological carbon carrier |
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| CN113060832A true CN113060832A (en) | 2021-07-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113880249A (en) * | 2021-10-12 | 2022-01-04 | 深圳顺天环保实业有限公司 | Transverse cross anaerobic sludge interception digestion system and process |
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2020
- 2020-01-02 CN CN202010003416.4A patent/CN113060832A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113880249A (en) * | 2021-10-12 | 2022-01-04 | 深圳顺天环保实业有限公司 | Transverse cross anaerobic sludge interception digestion system and process |
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Application publication date: 20210702 |