CN114031179A - Organic matter high load anaerobic digestion processing system - Google Patents
Organic matter high load anaerobic digestion processing system Download PDFInfo
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- CN114031179A CN114031179A CN202111341357.2A CN202111341357A CN114031179A CN 114031179 A CN114031179 A CN 114031179A CN 202111341357 A CN202111341357 A CN 202111341357A CN 114031179 A CN114031179 A CN 114031179A
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- 230000029087 digestion Effects 0.000 title claims abstract description 44
- 239000005416 organic matter Substances 0.000 title claims abstract description 15
- 238000012545 processing Methods 0.000 title description 2
- 238000006243 chemical reaction Methods 0.000 claims abstract description 67
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 238000003756 stirring Methods 0.000 claims abstract description 22
- 239000012528 membrane Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000010802 sludge Substances 0.000 claims description 70
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims description 30
- 230000001079 digestive effect Effects 0.000 claims description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 22
- 239000012071 phase Substances 0.000 claims description 20
- 239000007790 solid phase Substances 0.000 claims description 15
- 239000007791 liquid phase Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 11
- 238000005191 phase separation Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims 1
- 230000008676 import Effects 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000010992 reflux Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 239000002910 solid waste Substances 0.000 description 1
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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
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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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses an organic matter high-load anaerobic digestion treatment system which comprises an anaerobic reactor, wherein the top of the anaerobic reactor is sealed by a flexible membrane provided with a reserved space, an anaerobic reaction region below the liquid level and a biogas buffer region above the liquid level are arranged in the sealed space of the anaerobic reactor, the biogas buffer region is provided with a biogas outlet, and a jet flow stirring device is arranged in the anaerobic reaction region in a matched manner. The jet stirring device is matched with the anaerobic reaction area, so that the anaerobic reaction area is stirred in a high-strength and complete mixing mode, the problems of generation, hardening and the like of scum in the anaerobic reaction area can be effectively avoided, the adverse influence of oil substances in feeding materials on an anaerobic system can be effectively controlled and eliminated, and the technical effects that the overall operation efficiency of the anaerobic digestion system is greatly improved, long-term stable operation can be realized in a high-organic-load and high-oil-content environment and the like are further achieved.
Description
Technical Field
The invention relates to the technical field of environment-friendly equipment, in particular to an organic matter high-load anaerobic digestion treatment system.
Background
Anaerobic digestion is a common treatment process for wastewater containing biochemical organic matters and high-solid-content slurry, and the treatment process is a process for completing conversion and metabolism of the organic matters in the wastewater by using anaerobic microorganisms in a system. Because the proliferation speed of anaerobic bacteria is relatively slow, the number of anaerobic microbial floras in the reactor becomes one of key factors for restricting the efficiency of an anaerobic digestion treatment system, and therefore, how to increase the number of anaerobic bacteria in the reactor so as to improve the treatment capacity of the anaerobic system is a hotspot of the improvement and optimization research of the current anaerobic process. Because the two-phase solid-liquid separation of the existing anaerobic digestion treatment technology usually adopts a gravity separation mode, the problems of low separation efficiency, large occupied area, difficult odor collection and the like exist, particularly for organic solid waste slurry which is difficult to treat and contains oil and high solid content, a fully-mixed anaerobic reactor is mostly adopted, and the means for improving the concentration of activated sludge in a stable system and avoiding the impact influence of the oil on the anaerobic system are very limited, so that the anaerobic digestion treatment technology has limitations on the anaerobic digestion treatment of organic wastewater and organic slurry which have high treatment load requirements and high solid content and high oil content.
The problems in the prior art are solved, how to effectively separate the sludge and the water of the anaerobic digestion liquid, the effective separation of Hydraulic Retention Time (HRT) and Sludge Retention Time (SRT) is realized, the activated sludge is refluxed to maintain the stable concentration of the active microorganisms in the anaerobic reactor, and the high efficiency and stability of the anaerobic digestion process are maintained, so that the higher anaerobic digestion efficiency and the system treatment capacity are obtained. Therefore, effectively increasing the concentration of anaerobic microorganisms in the reactor is a key research direction of the anaerobic digestion treatment process of organic matters.
Disclosure of Invention
Aiming at the technical short board in the related anaerobic treatment process, the invention provides an organic matter high-load anaerobic digestion treatment system which can overcome the defects in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
the high-load anaerobic digestion treatment system for the organic matters comprises an anaerobic reactor, wherein the top of the anaerobic reactor is sealed by a flexible membrane provided with a reserved space, and an anaerobic reaction zone below the liquid level and a methane buffer zone above the liquid level are arranged in the sealed space of the anaerobic reactor. The biogas buffer area is provided with a biogas outlet, and the anaerobic reaction area is provided with a jet stirring device in a matching way.
Furthermore, the flexible film comprises an inner film and an outer film, the outer film is connected with the blower through the blowpipe, the outer film maintains the shape through the blower and the blowpipe, a sealed space is formed between the inner film and the outer film, and the inner film freely expands and contracts through the methane storage amount. Therefore, the blower forms pressure on the inner membrane after the outer membrane is completely unfolded, so that pressure is given to the methane buffer area when methane is discharged, and the methane is discharged more smoothly. The biogas outlet is positioned at the bottom of the inner membrane, so that the reactor is in a form of simplifying the construction of the anaerobic reactor and saving the occupied area of an anaerobic system.
Furthermore, the jet stirring device comprises a circulation feed inlet, a jet circulation pump and a jet stirrer, wherein the circulation feed inlet is positioned at the upper part of the anaerobic reaction zone and below the liquid level. The circulation feed inlet is communicated with the jet circulation pump through a circulation feed pipe, one end of the circulation feed pipe is communicated with the circulation feed inlet, and the other end of the circulation feed pipe penetrates out of the anaerobic reactor and is communicated with the jet circulation pump. The jet flow agitator comprises an upper layer jet flow agitator positioned on the upper part of the anaerobic reaction zone and a lower layer jet flow agitator positioned on the lower part of the anaerobic reaction zone, the upper layer jet flow agitator is communicated with the jet flow circulating pump through an upper layer jet flow pipe, and the lower layer jet flow agitator is communicated with the jet flow circulating pump through a lower layer jet flow pipe. The jet flow stirring arrangement of the upper layer and the lower layer enables the stirring intensity and the stirring range to be kept at a higher level.
Furthermore, a biogas suction inlet is arranged in the anaerobic reaction zone, a jet circulation pump can suck partial biogas through the biogas suction inlet in a negative pressure mode and is connected with the jet circulation pump through a biogas suction pipe, an impeller of the jet circulation pump rotates at a high speed to mix the sucked gas and water, and the gas and water are sprayed into the anaerobic reaction zone through a jet stirrer. The operation mode of stirring by using the biogas while stirring by using the hydraulic jet flow can improve the stirring efficiency, effectively break scum, prevent the liquid level in the tank from crusting and hardening, realize the circulation of materials in a large vertical proportion, and achieve the purpose of complete mixing, so that the whole system can normally operate under the environment conditions of large solid content of feeding and high oil content.
Furthermore, the jet circulation pump adopts a cutting pump, so that solid materials in the anaerobic reaction zone are continuously cut in the circulation process, the impurities are prevented from blocking equipment and pipelines, and the whole system can normally run under the environmental condition of high solid content in the feeding material.
Furthermore, the anaerobic reaction zone is provided with an external heat exchange device in a matching manner, the heat exchange device comprises a sludge circulating pump, a sludge feeding pipe, a sludge discharging pipe and a heat exchanger, the sludge circulating pump feeds the sludge in the anaerobic reaction zone to the heat exchanger through the sludge feeding pipe, and the sludge returns to the anaerobic reaction zone through the sludge discharging pipe after heat exchange in the heat exchanger. The heat exchange device can exchange heat with hot water and circulating cooling water respectively and is applied to heating or cooling working conditions respectively. The anaerobic reactor can be operated under the conditions of medium temperature (35 plus or minus 3 ℃) and high temperature (55 plus or minus 3 ℃) respectively, and the temperature variation range in the tank is controlled within plus or minus 0.5 ℃/day. The heat exchange device adopts the design of anti-fouling, quick disassembly and assembly, the caliber of a sludge channel in the heat exchange device is larger than 50mm, and the heat exchange device is convenient to overhaul and maintain.
Furthermore, the anaerobic reaction zone is provided with a two-phase separation device in a matching way, the two-phase separation device comprises a digestive juice pump and a two-phase separator, a digestive juice discharge pump sends the digestive juice sucked by a digestive juice suction inlet arranged in the anaerobic reaction zone into a digestive juice feed inlet of the two-phase separator through a digestive juice pipe, and the digestive juice is separated into solid-phase sludge and liquid-phase biogas slurry by the two-phase separator and then is discharged from a solid-phase outlet and a liquid-phase outlet respectively. The digestive juice suction inlet is positioned below the liquid level at the top of the anaerobic reaction zone.
Furthermore, the two-phase separation device also comprises a sludge reflux pump, and the sludge discharged from the solid phase outlet is returned by the sludge reflux pump through a sludge discharge pipe and is sent to the anaerobic reaction zone through a sludge reflux pipe and a sludge reflux port arranged in the anaerobic reactor.
The invention has the beneficial effects that: the jet stirring device is matched with the anaerobic reaction area, so that the anaerobic reaction area is stirred in a high-strength and complete mixing mode, the problems of generation, hardening and the like of scum in the anaerobic reaction area can be effectively avoided, the adverse influence of oil substances in feeding materials on an anaerobic system can be effectively controlled and eliminated, and the technical effects that the overall operation efficiency of the anaerobic digestion system is greatly improved, long-term stable operation can be realized in a high-organic-load and high-oil-content environment and the like are further achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of an organic matter high load anaerobic digestion treatment system according to an embodiment of the present invention.
In the figure: 1-an anaerobic reactor; 2-digestive juice discharging pump; 3-a digester liquor pipe; 4-two phase separator; 5-sludge discharge pipe; 6-sludge reflux pump; 7-a sludge return pipe; 101-anaerobic reaction zone; 102-a biogas buffer zone; 103-circulation feed inlet; 104-circulating feed pipe; 105-jet circulation pump; 106-lower layer jet pipe; 107-lower layer jet agitator; 108-upper jet pipe; 109-upper jet agitator; 110-outer membrane; 111-inner membrane; 112-a blower; 113-a blowpipe; 114-a biogas outlet; 115-digestive juice suction inlet; 116-sludge recirculation port; 117-sludge recirculation pump; 118-sludge feed pipe; 119-a heat exchanger; 120-sludge discharge pipe; 121-biogas suction inlet; 122-biogas suction pipe; 401-digestive juice feed inlet; 402-solid phase outlet; 403-liquid phase outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As shown in fig. 1, the high-load anaerobic digestion treatment system for organic matters according to the embodiment of the invention comprises an anaerobic reactor 1, wherein the top of the anaerobic reactor 1 is sealed by a flexible membrane provided with a reserved space, and the sealed space of the anaerobic reactor 1 comprises an anaerobic reaction zone 101 below the liquid level and a biogas buffer zone 102 above the liquid level. The biogas buffer 102 is provided with a biogas outlet 114. The anaerobic reaction zone 101 is provided with a jet stirring device, a heat exchange device and a two-phase separation device in a matching way.
Wherein, the flexible membrane comprises an inner membrane 111 and an outer membrane 110, the outer membrane 110 maintains the shape through a blower 112 and a blowpipe 113, the inner membrane 111 freely expands and contracts through the methane storage amount, and a methane outlet 114 is positioned at the bottom of the inner membrane 111.
The jet flow stirring device comprises a circulation feed inlet 103, a jet flow circulating pump 105 and a jet flow stirrer, wherein the circulation feed inlet 103 is positioned at the upper part of the anaerobic reaction zone 101 and below the liquid level, and the jet flow circulating pump 105 is a cutting pump. The circulation feed inlet 103 is communicated with a jet circulation pump 105 through a circulation feed pipe 104, one end of the circulation feed pipe 104 is communicated with the circulation feed inlet 103, and the other end of the circulation feed pipe 104 penetrates out of the anaerobic reactor 1 and is communicated with the jet circulation pump 105. The jet flow stirrer comprises an upper layer jet flow stirrer 109 positioned at the upper part of the anaerobic reaction zone 101 and a lower layer jet flow stirrer 107 positioned at the lower part of the anaerobic reaction zone 101, the upper layer jet flow stirrer 109 is communicated with the jet flow circulating pump 105 through an upper layer jet flow pipe 108, and the lower layer jet flow stirrer 107 is communicated with the jet flow circulating pump 105 through a lower layer jet flow pipe 106. The jet circulation pump 105 can suck partial biogas through a biogas suction port 121 under negative pressure, and the biogas suction port 121 is located in the biogas buffer area 102 and connected with the jet circulation pump 105 through a biogas suction pipe 122.
The heat exchange device comprises a sludge circulating pump 117, a sludge feeding pipe 118, a sludge discharging pipe 120 and a heat exchanger 119, the sludge circulating pump 117 feeds the sludge in the anaerobic reaction zone 101 to the heat exchanger 119 through the sludge feeding pipe 118, and the sludge returns to the anaerobic reaction zone 101 through the sludge discharging pipe 120 after heat exchange in the heat exchanger 119. The heat exchange device can exchange heat with hot water and circulating cooling water respectively and is applied to heating or cooling working conditions respectively. The anaerobic reactor 1 can be operated under the conditions of medium temperature (35 plus or minus 3 ℃) and high temperature (55 plus or minus 3 ℃) respectively, and the temperature variation range in the tank is controlled within plus or minus 0.5 ℃/day. The heat exchange device adopts the design of antifouling and blockage prevention and quick disassembly, and the caliber of a sludge channel in the heat exchange device is larger than 50 mm.
The two-phase separation device comprises a residual digestive juice discharge pump 2, a two-phase separator 4 and a sludge reflux pump 6, wherein the digestive juice discharge pump 2 sends the digestive juice sucked by a digestive juice suction inlet 115 arranged in the anaerobic reaction zone 101 to a digestive juice feed inlet 401 of the two-phase separator 4 through a digestive juice pipe 3, and the digestive juice is separated into solid-phase sludge and liquid-phase residual juice by the two-phase separator 4 and then is discharged from a solid-phase outlet 402 and a liquid-phase outlet 403 respectively. The sludge discharged from the solid phase outlet 402 is returned by the sludge return pump 7 through the sludge discharge pipe 5, and discharged into the anaerobic reaction zone 101 through the sludge return pipe 7 and the sludge return port 116 arranged in the anaerobic reactor 1. The sludge return port 116 is located below the liquid level at the top of the anaerobic reaction zone 101, and the digester effluent intake port is located below the anaerobic reaction zone 101.
In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.
When the anaerobic digestion system is used specifically, solid-containing waste is put into the anaerobic reactor 1, a biogas buffer area 102 above the liquid level and an anaerobic reaction area 101 below the liquid level are formed in the anaerobic reactor 1, the solid-containing waste arranged near a circulating feed inlet 103 at the upper part of the anaerobic reaction area 101 is drawn into the jet circulation pump 105 through the circulating feed pipe 104 for cutting by the jet circulation pump 105, the cut solid-containing waste flows into an upper jet flow stirrer 109 positioned at the upper part of the anaerobic reaction area 101 and a lower jet flow stirrer 107 positioned at the lower part of the anaerobic reaction area 101 through an upper jet flow pipe 108 and a lower jet flow pipe 106, and the cut solid-containing waste is injected into the anaerobic reaction area 101 at high pressure by the upper jet flow stirrer 109 and the lower jet flow stirrer 107, the purpose of jet stirring is performed on the anaerobic reaction zone 101, so that a complete circular cutting process is formed in the anaerobic reaction zone 101. Meanwhile, a biogas suction port 121 is arranged in the anaerobic reaction zone 101, the jet circulation pump 105 can suck partial biogas through the biogas suction port 121 under negative pressure and is connected with the jet circulation pump 105 through a biogas suction pipe 122, an impeller of the jet circulation pump 105 rotates at high speed to mix the sucked gas and water, and the mixed gas and water are sprayed into the anaerobic reaction zone 101 through a lower jet stirrer 107 and an upper jet stirrer 109 respectively. Solid material in the anaerobic reaction area 101 constantly is cut at the circulation in-process, prevent that impurity from blockking up equipment and pipeline, through upper and lower two-layer efflux stirring setting, make stirring intensity and stirring scope all can keep at higher level, adopt the water conservancy efflux stirring simultaneously and assist the operation mode of marsh gas stirring, can improve stirring efficiency, prevent that the jar liquid level from crusting, harden, realize that the material forms big proportion circulation from top to bottom, reach the mesh of complete mixing, make the entire system can be great at the feeding solid content, normal operating under the oily ambient condition of height.
According to the requirement of working conditions, the sludge circulating pump 117 feeds solid-containing waste materials in the anaerobic reaction zone 101 into the heat exchanger 119 through the sludge feeding pipe 118 for heating or cooling and then feeds the solid-containing waste materials back to the anaerobic reaction zone 101 through the sludge discharging pipe 120, so that a complete circulating heating or cooling process is formed in the anaerobic reaction zone 101.
The digestion liquid discharge pump 2 sends the digestion liquid sucked from the digestion liquid suction inlet 115 arranged in the anaerobic reaction zone 101 into a digestion liquid feed inlet 401 of the two-phase separator 4 through the digestion liquid pipe 3 after the preliminary anaerobic digestion is completed in the anaerobic reaction zone 101, and the digestion liquid is separated into solid-phase sludge and liquid-phase residual liquid by the two-phase separator 4 and then is discharged from a solid-phase outlet 402 and a liquid-phase outlet 403 respectively. The sludge discharged from the solid phase outlet 402 is returned by the sludge return pump 6 through the sludge discharge pipe 5, and discharged into the anaerobic reaction zone 101 through the sludge return pipe 7 and the sludge return port 116 arranged in the anaerobic reactor 1.
In one embodiment of the present invention, the two-phase separator 4 is a two-phase horizontal spiral centrifuge, which is designed with a non-cone structure, and comprises: a digestive juice inlet 401, a solid phase outlet 402 and a liquid phase outlet 403, as well as a cover shell, a base, a rotary drum, a spiral shaft, a driving motor, a hydraulic differential, a main bearing seat and a belt pulley. The digestion liquid in the anaerobic reactor 1 is sucked by a digestion liquid discharge pump 2 and then is sent to a digestion liquid feed inlet 401 of a two-phase separator 4 through a digestion liquid pipe 3, a rotary drum and a spiral shaft simultaneously rotate at a high speed in the same direction during working, the rotary drum and the spiral shaft form a differential rotation speed (which can be automatically adjusted by a frequency converter) of 5-30 r/m under the action of a differential mechanism, when the digestion liquid enters the rotary drum rotating at a high speed from a central shaft hole through the digestion liquid feed inlet 401, suspended matters in the liquid and water are separated, settled and accumulated in the inner wall under the action of centrifugal force, separated filtrate is filled from the inner circle of a water layer to a liquid phase outlet 403 and overflows through a weir plate, and concentrated sludge is pushed to a solid phase outlet 402 by the spiral shaft and discharged. In one embodiment of the invention, the two-phase separator 4 can control the sludge concentration at the liquid phase outlet through differential rotation speed, and the sludge is discharged through the water outlet to achieve the purpose of discharging the residual sludge.
In one embodiment of the present invention, the concentration of sludge in the anaerobic reaction zone 101 of the tank 1 can be 30-50 g/L.
In one embodiment of the invention, the organic loading in the anaerobic reaction zone 101 of the tank 1 can be up to 5.0 kgVS/(m)3D) above.
In one embodiment of the invention, the concentration of feed oil tolerated by the anaerobic digestion system is up to 30-50kg/m3The above.
In summary, according to the above technical scheme of the present invention, the jet stirring device is provided in the anaerobic reaction zone 101, and the anaerobic reaction zone 101 is stirred at a high strength, so that unfavorable phenomena such as liquid surface crusting and hardening in the anaerobic reaction zone 101 are effectively controlled, and technical effects of greatly improving the overall operation efficiency of the anaerobic digestion system, and being capable of operating in an environment with a high solid content and a high oil content are achieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An organic matter high-load anaerobic digestion treatment system is characterized in that: the anaerobic reactor comprises an anaerobic reactor (1), wherein the top of the anaerobic reactor (1) is sealed by a flexible membrane provided with a reserved space, the sealed space of the anaerobic reactor (1) comprises an anaerobic reaction zone (101) below the liquid level and a methane buffer zone (102) above the liquid level, the methane buffer zone (102) is provided with a methane outlet (114), and the anaerobic reaction zone (101) is provided with a jet stirring device in a matching way.
2. The organic matter high load anaerobic digestion treatment system according to claim 1, wherein: the flexible membrane comprises an inner membrane (111) and an outer membrane (110), a sealed space is formed between the inner membrane (111) and the outer membrane (110), and the outer membrane (110) is connected with a blower (112) through a blowpipe (113).
3. The organic matter high load anaerobic digestion treatment system according to claim 1, wherein: jet flow agitating unit includes circulation feed inlet (103), circulation inlet pipe (104), jet circulation pump (105) and jet flow agitator, circulation inlet pipe (104) one end with circulation feed inlet (103) intercommunication, wear out circulation inlet pipe (104) other end anaerobic reactor (1) back with jet circulation pump (105) intercommunication, the jet flow agitator is located anaerobic reaction district (101).
4. The organic matter high load anaerobic digestion treatment system according to claim 3, wherein: the jet flow stirrer comprises an upper jet flow stirrer (109) positioned at the upper part of the anaerobic reaction zone (101) and a lower jet flow stirrer (107) positioned at the lower part of the anaerobic reaction zone (101), wherein the upper jet flow stirrer (109) is communicated with the jet flow circulating pump (105) through an upper jet flow pipe (108), the lower jet flow stirrer (107) is communicated with the jet flow circulating pump (105) through a lower jet flow pipe (106), the jet flow circulating pump (105) is connected with a biogas suction pipe (122), one end of the biogas suction pipe (122) is provided with a biogas suction port (121) capable of sucking partial biogas through negative pressure, and the biogas suction port (121) is positioned in a biogas buffer zone (102).
5. The system for high load anaerobic digestion treatment of organic matter according to any of claims 1 to 4, wherein: anaerobic reaction district (101) are supporting to be provided with heat exchange device, heat exchange device includes sludge circulating pump (117), mud inlet pipe (118), mud discharging pipe (120) and heat exchanger (119), the material import and the material export of heat exchanger (119) are passed through respectively mud inlet pipe (118) with mud discharging pipe (120) with anaerobic reaction district (101) intercommunication, sludge circulating pump (117) set up in mud inlet pipe (118) on the way.
6. The system of claim 5, wherein: the caliber of a sludge channel in the heat exchange device is larger than 50 mm.
7. The organic matter high load anaerobic digestion treatment system according to claim 1, wherein: the anaerobic reaction zone (101) is provided with a two-phase separation device in a matched manner, the two-phase separation device comprises a digestive juice discharging pump (2), a two-phase separator (4), a digestive juice suction inlet (115) and a digestive juice pipe (3), one end of the digestive juice pipe (3) is communicated with the digestive juice suction inlet (115), the other end of the digestive juice pipe (3) is communicated with a digestive juice feeding port (401) of the two-phase separator (4) after passing through the digestive juice discharging pump (2), and the digestive juice is separated into solid-phase sludge and liquid-phase biogas slurry by the two-phase separator (4) and then is discharged from a solid-phase outlet (402) and a liquid-phase outlet (403) respectively.
8. The organic matter high load anaerobic digestion treatment system according to claim 7, wherein: the two-phase separation device further comprises a sludge return pump (6), the sludge return pump (6) is communicated with the solid phase outlet (402) through a sludge discharge pipe (5), and sludge concentrated by the sludge return pump (6) and the two-phase separator (4) is conveyed into the anaerobic reaction zone (101) through a sludge return pipe (7) and a sludge return port (116) arranged in the anaerobic reactor (1).
9. An organic matter high load anaerobic digestion treatment system according to claim 7 or 8, characterized in that: the digestive juice suction inlet (115) is positioned below the liquid level at the top of the anaerobic reaction zone (101).
10. An organic matter high load anaerobic digestion treatment system according to claim 7 or 8, characterized in that: the two-phase separator (4) is solid-liquid separation equipment such as a two-phase horizontal spiral centrifuge, a stacked spiral sludge dewatering machine or a spiral extrusion dewatering machine.
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| US20060006111A1 (en) * | 2002-08-14 | 2006-01-12 | Stig Holm | Method and apparatus for production of biogas from an organic material |
| CN204981837U (en) * | 2015-07-13 | 2016-01-20 | 广西博世科环保科技股份有限公司 | Anaerobic reactor is mixed entirely to high efficiency |
| CN206720843U (en) * | 2016-12-12 | 2017-12-08 | 江苏中宜金大环保技术发展有限公司 | A kind of anaerobic reactor and its interior circulating jet system |
| CN108557996A (en) * | 2018-03-07 | 2018-09-21 | 苏州科特环保股份有限公司 | A kind of anaerobic reaction system with biogas air supporting, agitating function |
| CN109020130A (en) * | 2018-09-21 | 2018-12-18 | 江苏腾业新型材料有限公司 | A kind of anaerobic reactor and the anaerobic sludge digestion technique using the anaerobic reactor |
| CN216584390U (en) * | 2021-11-12 | 2022-05-24 | 普拉克环保系统（北京）有限公司 | Organic matter high load anaerobic digestion processing system |
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