CN217868319U - Perishable rubbish and domestic sewage cooperative treatment system - Google Patents
Perishable rubbish and domestic sewage cooperative treatment system Download PDFInfo
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- CN217868319U CN217868319U CN202220893333.1U CN202220893333U CN217868319U CN 217868319 U CN217868319 U CN 217868319U CN 202220893333 U CN202220893333 U CN 202220893333U CN 217868319 U CN217868319 U CN 217868319U
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- perishable
- perishable garbage
- fermentation
- garbage
- treatment
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 87
- 239000010865 sewage Substances 0.000 title claims abstract description 52
- 238000000855 fermentation Methods 0.000 claims abstract description 62
- 230000004151 fermentation Effects 0.000 claims abstract description 42
- 239000010802 sludge Substances 0.000 claims abstract description 32
- 239000002002 slurry Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000002699 waste material Substances 0.000 claims description 11
- 238000004062 sedimentation Methods 0.000 claims description 9
- 230000002195 synergetic effect Effects 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 3
- 238000011278 co-treatment Methods 0.000 claims 3
- 239000010791 domestic waste Substances 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000009264 composting Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000255925 Diptera Species 0.000 description 2
- 238000010564 aerobic fermentation Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000010806 kitchen waste Substances 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010908 plant waste Substances 0.000 description 2
- 244000144977 poultry Species 0.000 description 2
- 235000013594 poultry meat Nutrition 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- 235000013330 chicken meat Nutrition 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a perishable garbage and domestic sewage cooperative treatment system, which comprises a perishable garbage anaerobic fermentation device and a sewage treatment device, wherein the perishable garbage anaerobic fermentation device comprises a perishable garbage fermentation bin, a perishable garbage feeding port, a water replenishing port and a biogas slurry outlet; domestic sewage enters the perishable garbage fermentation bin through the water replenishing port, perishable garbage enters the perishable garbage fermentation bin through the perishable garbage feeding port, and fermentation raw materials are subjected to mixed fermentation in the perishable garbage fermentation bin; the biogas slurry outlet is communicated with the sewage treatment device, and the biogas slurry is discharged through the biogas slurry outlet and enters the sewage treatment device for further treatment, and is discharged or managed after reaching the standard. In the technical scheme of the invention, the perishable garbage and the domestic sewage are mixed for anaerobic fermentation and are linked with a rural sewage treatment system to treat biogas slurry, anaerobic sludge can flow back to an anaerobic perishable garbage fermentation bin, the whole treatment process is convenient and efficient, the energy consumption is low or no energy is consumed, the biogas is well recycled, and the energy output can be realized.
Description
Technical Field
The invention relates to the technical field of garbage treatment and sewage treatment, in particular to a system for cooperatively treating perishable garbage and domestic sewage.
Background
The treatment of the perishable garbage in the rural areas is a difficult problem in management, and along with the improvement of the economic living standard of the rural areas, the requirement on environmental cleanliness is higher and higher, so that the problem is more prominent. The perishable garbage in rural areas mainly comprises kitchen garbage, straw and crop residues and household livestock and poultry garbage.
Traditionally, straws, crop residues and household livestock and poultry wastes are treated by using a methane tank in rural areas, and the purpose of the treatment is to produce methane for cooking. However, the gas mode of the pond for rural users basically fails due to the following problems which are difficult to solve: firstly, most farmers lack corresponding biogas technical knowledge and operation and maintenance management capacity; secondly, the output of the biogas is unstable frequently, no gas is available during cooking, and the use is very inconvenient, so that farmers are unwilling to use the biogas; thirdly, the biogas slurry is not removed, and the biogas residue is very troublesome to clean; fourthly, due to the fact that the management level is low, certain potential safety hazards exist. In the traditional rural household biogas digester, kitchen waste and kitchen waste are not put into a warehouse generally. Meanwhile, the situation that pigs, cattle, sheep and chickens are raised by households is less and less, and the problem of insufficient raw materials of the methane tank begins to appear.
In urban areas, because perishable garbage is convenient to concentrate and the garbage yield is high, the problem of perishable garbage disposal is mostly solved by combining concentrated anaerobic fermentation with biogas power generation at present, and great success is achieved. However, if the mode of centralized garbage disposal is adopted in rural areas, the garbage collection and transportation cost is extremely high, and the cost is too high economically. Therefore, in view of the whole, the rural areas are still suitable for developing a distributed perishable garbage treatment mode.
In recent years, there are two main types of decentralized perishable waste treatment modes in rural areas:
the first is distributed aerobic fermentation treatment. The distributed aerobic fermentation treatment mainly has the following problems: air is continuously blown into the perishable garbage fermentation bin in the aerobic treatment process, and heat is regenerated, so that the treatment energy consumption is high; meanwhile, the power equipment and the control system are relatively complex, so that the overall failure rate is high; because the technical control and management requirements are high, manual on-duty operation is generally needed, the labor cost is high, and a plurality of difficulties also exist in configuring operators with professional skills based on the actual situation of rural areas; in addition, the aerobic waste treatment equipment has higher manufacturing cost.
And secondly, a sunlight composting room is adopted to treat perishable garbage. The sunlight composting room mode mainly has the following problems: the organic fertilizer produced in the sunlight composting room has the defects of high water content, nonuniform decomposition, low harmless degree and the like; water supplement, ventilation, mosquitoes and flies, odor and sewage treatment in the composting process are not easy to control; the composting period is long, the material can be produced only once in months to a year, the fertilizer production operation is difficult, and the cost is high; the discharge port is small, the machine is difficult to operate, the operation is mainly manual, and the working environment is poor; the process and the management are difficult to be linked with rural sewage, and the management cost of a specially-assigned person is high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a system and a method for the cooperative treatment of perishable garbage and domestic sewage, which realize the low-cost, high-efficiency and clean treatment of rural perishable garbage and rural domestic sewage.
In order to solve the problems, the system for the synergistic treatment of perishable garbage and domestic sewage comprises a perishable garbage anaerobic fermentation device and a sewage treatment device; the perishable garbage anaerobic fermentation device also comprises a perishable garbage fermentation bin, a perishable garbage feeding hole, a water replenishing hole and a biogas slurry outlet; domestic sewage enters the perishable garbage fermentation bin through the water replenishing port, perishable garbage enters the perishable garbage fermentation bin through the perishable garbage feeding port, and fermentation raw materials are subjected to mixed fermentation in the perishable garbage fermentation bin; the biogas slurry outlet is communicated with the sewage treatment device, and the biogas slurry is discharged through the biogas slurry outlet and enters the sewage treatment device for further treatment, and is discharged or managed after reaching the standard.
The sewage treatment device comprises an aerobic tank and a sludge sedimentation tank. The sewage treatment apparatus may further include an anaerobic tank. The sludge settling tank also comprises a sludge discharge system for discharging activated sludge. In order to realize the recycling of the activated sludge, the sludge discharge system is provided with a bypass pipe which is communicated with a perishable garbage fermentation bin of the perishable garbage anaerobic fermentation device and can partially or completely return the sludge in the sludge sedimentation tank to the perishable garbage fermentation bin.
Generally, the perishable garbage anaerobic fermentation device is also provided with a biogas outlet and a biogas residue outlet, which are respectively used for discharging biogas and biogas residue. In order to improve the fermentation efficiency and fully mix the fermentation raw materials in the perishable garbage fermentation bin, the perishable garbage anaerobic fermentation device is provided with a stirring device.
In the technical scheme of the invention, perishable garbage and domestic sewage are mixed for anaerobic fermentation and are linked with a rural sewage treatment system to treat biogas slurry, anaerobic sludge can flow back to an anaerobic perishable garbage fermentation bin, the whole treatment process is convenient and efficient, the energy consumption is low or no, the recycling of biogas is well carried out, and the energy output can be realized. Under the current background of carbon peak reaching and carbon neutralization policy, the method has great social value and economic value. More advantageously, due to linkage operation and maintenance with rural sewage and professional operation and maintenance teams, under the condition that the personnel cost is not increased basically, cooperative treatment and cooperative management and control are realized.
Drawings
FIG. 1 is a schematic view of a system for co-processing perishable waste and domestic sewage according to the present invention;
FIG. 2 is a schematic view of another system for the synergistic treatment of perishable waste and domestic sewage according to the present invention.
Detailed Description
Example 1
The invention is described in further detail below with reference to the following figures and embodiments:
as shown in figure 1, the system for the synergistic treatment of the perishable garbage and the domestic sewage comprises a perishable garbage anaerobic fermentation device 1 and a sewage treatment device 2; the perishable garbage anaerobic fermentation device 1 comprises a perishable garbage fermentation bin 11, a perishable garbage feeding hole 12, a water replenishing hole 13 and a biogas slurry outlet 14; domestic sewage enters the perishable garbage fermentation bin 11 through the water replenishing port 13, perishable garbage enters the perishable garbage fermentation bin 11 through the perishable garbage feeding port 12, and fermentation raw materials are subjected to mixed fermentation in the perishable garbage fermentation bin; the sewage treatment device 2 comprises an aerobic tank 22 and a sludge sedimentation tank 23; the biogas slurry outlet 14 is communicated with the sewage treatment device 2, and biogas slurry is discharged through the biogas slurry outlet 14 and enters the sewage treatment device 2 for further treatment, and is discharged or managed after reaching the standard; the sludge settling tank 23 further includes a sludge discharge system 231 for discharging sludge generated by the sewage treatment.
Example 2
As shown in FIG. 2, the system for the synergistic treatment of the perishable garbage and the domestic sewage comprises a perishable garbage anaerobic fermentation device 1 and a sewage treatment device 2; the perishable garbage anaerobic fermentation device 1 comprises a perishable garbage fermentation bin 11, a perishable garbage feeding hole 12, a water replenishing hole 13, a biogas slurry outlet 14, a biogas outlet 15, a biogas residue discharging hole 16 and a stirring device 17; domestic sewage enters the perishable garbage fermentation bin 11 through the water replenishing port 13, perishable garbage enters the perishable garbage fermentation bin 11 through the perishable garbage feeding port 12, and fermentation raw materials are subjected to mixed fermentation in the perishable garbage fermentation bin; the biogas slurry outlet 14 is communicated with the sewage treatment device 2, and biogas slurry is discharged through the biogas slurry outlet 14 and enters the sewage treatment device 2 for further treatment, and is discharged or managed after reaching the standard; the sewage treatment device 2 comprises an anaerobic tank 21, an aerobic tank 22 and a sludge sedimentation tank 23; the sludge settling tank 23 further comprises a sludge discharge system 231 for discharging sludge generated by sewage treatment; the sludge discharge system 231 is provided with a bypass pipe 2311, the bypass pipe 2311 is communicated with the perishable garbage fermentation bin 11 of the perishable garbage anaerobic fermentation device 1, and can return sludge in the sludge sedimentation tank 23 to the perishable garbage fermentation bin 11.
In the system, the sludge in the sludge sedimentation tank 23 gradually returns to an anaerobic state after being sufficiently stood, and then a sludge return pump can be started to pump the sludge back to the perishable garbage fermentation bin 11. In the process, the sludge backflow can be started at an early stage of several months or even once.
Claims (7)
1. The utility model provides a perishable rubbish and domestic sewage cooperative processing system, includes perishable rubbish anaerobic fermentation device (1) and sewage treatment plant (2), its characterized in that: the perishable garbage anaerobic fermentation device (1) comprises a perishable garbage fermentation bin (11), a perishable garbage feeding hole (12), a water replenishing hole (13) and a biogas slurry outlet (14); domestic sewage enters the perishable garbage fermentation bin (11) through the water replenishing port (13), perishable garbage enters the perishable garbage fermentation bin (11) through the perishable garbage feeding port (12), and fermentation raw materials are mixed and fermented in the perishable garbage fermentation bin; the biogas slurry outlet (14) is communicated with the sewage treatment device (2), and biogas slurry is discharged through the biogas slurry outlet (14) and enters the sewage treatment device (2) for further treatment, and is discharged or managed after reaching the standard.
2. A system for the synergistic treatment of perishable waste and domestic sewage according to claim 1, wherein: the sewage treatment device (2) comprises an aerobic tank (22) and a sludge sedimentation tank (23).
3. A system for the synergistic treatment of perishable waste and domestic sewage according to claim 2, wherein: the sewage treatment device (2) also comprises an anaerobic tank (21).
4. A system for the co-treatment of perishable waste and domestic sewage according to claim 2 or 3, wherein: the sludge sedimentation tank (23) also comprises a sludge discharge system (231).
5. A system for the synergistic treatment of perishable waste and domestic sewage according to claim 4, wherein: the sludge discharge system (231) is provided with a bypass pipe (2311), the bypass pipe (2311) is communicated with a perishable garbage fermentation bin (11) of the perishable garbage anaerobic fermentation device (1), and can partially or completely return sludge in the sludge sedimentation tank (23) to the perishable garbage fermentation bin (11).
6. A co-treatment system for perishable waste and domestic waste as set forth in claim 1, wherein: the perishable garbage anaerobic fermentation device (1) is also provided with a biogas outlet (15) and a biogas residue discharge hole (16).
7. A system for co-treatment of perishable waste and domestic waste as in claim 1, 2, 3, 5 or 6 wherein: the perishable garbage anaerobic fermentation device (1) is provided with a stirring device (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220893333.1U CN217868319U (en) | 2022-04-18 | 2022-04-18 | Perishable rubbish and domestic sewage cooperative treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220893333.1U CN217868319U (en) | 2022-04-18 | 2022-04-18 | Perishable rubbish and domestic sewage cooperative treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217868319U true CN217868319U (en) | 2022-11-22 |
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ID=84087557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220893333.1U Active CN217868319U (en) | 2022-04-18 | 2022-04-18 | Perishable rubbish and domestic sewage cooperative treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217868319U (en) |
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2022
- 2022-04-18 CN CN202220893333.1U patent/CN217868319U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 555 Jinde Road, Jiangdong Town, Jindong District, Jinhua City, Zhejiang Province, 321000 Patentee after: ZHEJIANG HONGDIAN ENVIRONMENTAL PROTECTION Co.,Ltd. Address before: 321000 No. 2, No. 878, North Kang Jie street, Jindong District, Jinhua, Zhejiang. Patentee before: ZHEJIANG HONGDIAN ENVIRONMENTAL PROTECTION Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |