CN220579057U - Kitchen waste sewage treatment system - Google Patents
Kitchen waste sewage treatment system Download PDFInfo
- Publication number
- CN220579057U CN220579057U CN202322183263.8U CN202322183263U CN220579057U CN 220579057 U CN220579057 U CN 220579057U CN 202322183263 U CN202322183263 U CN 202322183263U CN 220579057 U CN220579057 U CN 220579057U
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- China
- Prior art keywords
- treatment unit
- kitchen waste
- biogas
- pool
- dehydrator
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- 238000011282 treatment Methods 0.000 title claims abstract description 81
- 239000010806 kitchen waste Substances 0.000 title claims abstract description 29
- 239000010865 sewage Substances 0.000 title claims abstract description 22
- 238000000855 fermentation Methods 0.000 claims abstract description 18
- 238000000926 separation method Methods 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000012528 membrane Substances 0.000 claims abstract description 11
- 230000004151 fermentation Effects 0.000 claims abstract description 10
- 238000002485 combustion reaction Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000009300 dissolved air flotation Methods 0.000 claims abstract description 5
- 239000010813 municipal solid waste Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 9
- 239000010802 sludge Substances 0.000 claims description 9
- 238000010564 aerobic fermentation Methods 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 239000007787 solid Substances 0.000 description 6
- 235000013305 food Nutrition 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000005457 optimization Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000002085 irritant Substances 0.000 description 2
- 231100000021 irritant Toxicity 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003278 egg shell Anatomy 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a kitchen waste sewage treatment system, which relates to the technical field of waste treatment and comprises a separation treatment unit, a biogas treatment unit, a biochemical treatment unit and a filtering treatment unit, and is characterized in that: the separation treatment unit comprises a sorting pool, a first dehydrator, a three-phase separator and an oil separator, the biogas treatment unit comprises a fermentation tank and a biogas combustion unit, the biochemical treatment unit comprises a second dehydrator, a dissolved air flotation machine, a first-stage A/O pool and a second-stage A/O pool, and the filtration treatment unit comprises an MBR membrane pool and a clean water pool; the whole system has reasonable process design, saves investment cost to the greatest extent, has simple operation, mature, advanced and reliable technology, small secondary pollution, economy and practicability, and realizes harmless, reduction and recycling treatment of kitchen waste.
Description
Technical Field
The utility model relates to the technical field of garbage treatment, in particular to a kitchen garbage sewage treatment system.
Background
Along with the rapid development of economy and the improvement of living standard of people, the rapid growth of kitchen waste is promoted, and the proportion and the quantity of the kitchen waste in urban household waste are continuously increased. Kitchen waste is waste produced in activities such as daily living and food processing, food service, unit food supply and the like, and comprises discarded unused vegetable leaves, pericarps, eggshells, tea leaves, bones and the like, and is mainly sourced from household kitchens, restaurants, canteens, vegetable markets and other industries related to food processing. Compared with other garbage, the kitchen garbage has the characteristics of high water content, high organic matter, grease and salt content, rich nutrient elements and the like, and has great recycling value.
In general, kitchen garbage and common household garbage are easy to be mixed and treated, so that the water content of the common garbage can be increased, the heat value can be reduced, and certain difficulties are caused in the subsequent landfill, incineration and other treatments of the household garbage. Therefore, there is a need for a waste treatment system that can be used to treat kitchen waste independently, and that is harmless, less harmful, and resource-efficient, to increase the efficiency of waste treatment and to reduce environmental pollution.
Disclosure of Invention
The utility model aims at: in order to solve the technical problems, the utility model provides a kitchen waste sewage treatment system which can be used for independently carrying out harmless, reduction and recycling treatment on kitchen waste so as to improve the efficiency of garbage treatment and be beneficial to reducing the pollution to the environment.
The utility model adopts the following technical scheme for realizing the purposes: the kitchen garbage sewage treatment system comprises a separation treatment unit, a biogas treatment unit, a biochemical treatment unit and a filtering treatment unit, wherein the separation treatment unit comprises a sorting tank, a first dehydrator, a three-phase separator and an oil separator, the biogas treatment unit comprises a fermentation tank and a biogas combustion unit, the biochemical treatment unit comprises a second dehydrator, a dissolved air floatation machine, a first-stage A/O tank and a second-stage A/O tank, and the filtering treatment unit comprises an MBR membrane tank and a clean water tank.
In order to facilitate the treatment of separated biogas, the utility model is a preferable kitchen waste sewage treatment system, and the biogas combustion unit comprises a biogas dehydrator, a desulfurizer, a low-pressure dry gas storage tank and a biogas torch.
In order to facilitate the cooling of sludge in the two-stage biochemical tank and the chemical elimination of biological foam, the biochemical treatment unit also comprises a sludge cooling device and a defoaming device, which are both arranged with the first-stage A/O tank.
In order to perform fermentation treatment on solid slag and scum, the three-phase separator, the second dehydrator and the slag discharging port of the dissolved air flotation machine are all communicated with the inlet of the high-temperature aerobic fermentation machine, which is preferable as the kitchen waste sewage treatment system.
In order to treat the irritant gas generated during the operation of the system, the kitchen waste sewage treatment system is preferably provided with a deodorizer at the outer sides of the separation treatment unit and the biochemical treatment unit.
In order to quickly ferment biogas residue resources, the kitchen waste sewage treatment system is preferably selected, and a CSTR anaerobic fermentation tank is adopted as the fermentation tank.
In order to rapidly dehydrate the biogas residues, the second dehydrator is preferably a horizontal screw centrifugal dehydrator as a kitchen waste sewage treatment system.
In order to further filter biogas slurry, the MBR membrane tank is preferably used as a kitchen waste sewage treatment system, and is special for split immersed percolate.
The beneficial effects of the utility model are as follows: the separation treatment unit is mainly used for preprocessing kitchen waste, so that the kitchen waste is subjected to solid-liquid separation primarily, the biogas treatment unit is mainly used for fermenting biogas and treating the biogas, the biochemical treatment unit is mainly used for settling solids in biogas slurry, and the filtration treatment unit is used for further filtering the solids in the liquid. The whole system has reasonable process design, saves investment cost to the greatest extent, has simple operation, mature, advanced and reliable technology, small secondary pollution, economy and practicability, and realizes harmless, reduction and recycling treatment of kitchen waste.
Drawings
FIG. 1 is a schematic diagram of a system of the present utility model;
FIG. 2 is a schematic diagram of a solid slag and dross handling system;
fig. 3 is a schematic program diagram of overall system processing.
Reference numerals: 1. a separation processing unit; 2. a biogas treatment unit; 3. a biochemical treatment unit; 4. and a filtering processing unit.
Detailed Description
The present utility model will now be described in detail with reference to the drawings and the specific embodiments thereof, wherein the illustrative embodiments and descriptions of the utility model are for illustration, but not for limitation.
Referring to fig. 1-3, the present utility model provides the following technical solutions: the utility model provides a kitchen garbage sewage treatment system, including separation processing unit 1, marsh gas processing unit 2, biochemical treatment unit 3 and filtration processing unit 4, separation processing unit 1 is including the letter sorting pond, first hydroextractor, three-phase separator, the grease trap, marsh gas processing unit 2 is including the fermentation cylinder, marsh gas combustion unit includes the marsh gas hydroextractor, the desulfurizer, low pressure dry type gas holder, marsh gas torch, biochemical treatment unit 3 is including the second hydroextractor, dissolve the air supporting machine, one-level A/O pond, second grade A/O pond, the second hydroextractor adopts horizontal spiral shell centrifugal dehydrator, filtration processing unit 4 includes the MBR membrane pond, the clean water basin, separation processing unit 1 and biochemical treatment unit 3's outside is provided with the deodorizer.
In this embodiment: the separation treatment unit 1 is mainly used for preprocessing kitchen waste, so that the kitchen waste is subjected to solid-liquid separation primarily, the biogas treatment unit 2 is mainly used for fermenting biogas and treating the biogas, the biochemical treatment unit 3 is mainly used for settling solids in biogas slurry, the filtration treatment unit 4 is used for further filtering solids in the liquid, and the deodorizer is used for treating irritant gas generated in the operation processes of the separation treatment unit 1 and the biochemical treatment unit 3, and is characterized in that the deodorizer adopts a biological filter for deodorization, so that the method is economical, practical and reliable in technology.
As a technical optimization scheme of the utility model, the biochemical treatment unit 3 further comprises a sludge cooling device and a defoaming device, and the sludge cooling device and the defoaming device are both arranged with the primary A/O pool.
In this embodiment: the sludge cooling device performs sludge cooling on the primary O pool, and the defoaming device performs chemical elimination on biological foam on the O pool.
As a technical optimization scheme of the utility model, a fermentation tank adopts a CSTR anaerobic fermentation tank, and slag discharge ports of a three-phase separator, a second dehydrator and a dissolved air flotation machine are communicated with an inlet of a high-temperature aerobic fermentation machine.
In this embodiment: the CSTR anaerobic fermentation tank adopts a wet medium-temperature anaerobic fermentation mode, and utilizes the anaerobic treatment technology of a completely mixed state of fermentation raw materials and microorganisms, so that the method has the characteristics of low energy consumption, high removal rate and stable operation; the high-temperature aerobic rapid fermentation mode is adopted for aerobic fermentation, and biogas residues are recycled, so that the bio-organic fertilizer is obtained.
As a technical optimization scheme of the utility model, the MBR membrane tank adopts a split immersed type MBR membrane tank special for percolate.
In this embodiment: the split immersed MBR membrane special for the percolate has the characteristics of low operation cost, simple and convenient operation and long service life, and can ensure continuous filament and stable operation for a long time.
The working principle and the using flow of the utility model are as follows:
(1) Sorting, pulping, squeezing, dehydrating, three-phase impurity removal and oil removal pretreatment are carried out on kitchen waste, and then the garbage percolate enters the subsequent wet medium-temperature anaerobic fermentation treatment;
(2) The effluent of anaerobic fermentation is dehydrated by biogas residues, the biogas residues are subjected to aerobic fermentation, the biogas slurry enters a subsequent air floatation, a two-stage A/O biochemical tank and an MBR membrane tank for sequential treatment, and the sewage is discharged after reaching the standard;
(3) The sludge cooling device and the defoaming device are matched with the A/O biochemical tank;
(4) The deodorizing device collects and deodorizes all the odor-generating discharge points;
(5) The biogas combustion is biogas matching equipment generated by wet medium-temperature anaerobic fermentation.
While the foregoing has been provided by embodiments of the present utility model with particularity, the principles and modes of carrying out the embodiments of the present utility model have been described in detail by reference to specific examples, which are merely intended to assist in understanding the principles of the embodiments of the present utility model, those skilled in the art should not be limited to the details of this utility model, since modifications in light of the principles and modes of carrying out the embodiments of the present utility model may be made by those skilled in the art.
Claims (8)
1. The kitchen garbage sewage treatment system comprises a separation treatment unit (1), a biogas treatment unit (2), a biochemical treatment unit (3) and a filtering treatment unit (4), and is characterized in that: the separation treatment unit (1) comprises a sorting pool, a first dehydrator, a three-phase separator and an oil separator, the biogas treatment unit (2) comprises a fermentation tank and a biogas combustion unit, the biochemical treatment unit (3) comprises a second dehydrator, a dissolved air flotation machine, a primary A/O pool and a secondary A/O pool, and the filtering treatment unit (4) comprises an MBR membrane pool and a clean water pool.
2. A kitchen waste sewage treatment system according to claim 1, wherein: the biogas combustion unit comprises a biogas dehydrator, a desulfurizer, a low-pressure dry gas storage cabinet and a biogas torch.
3. A kitchen waste sewage treatment system according to claim 1, wherein: the biochemical treatment unit (3) further comprises a sludge cooling device and a defoaming device, and the sludge cooling device and the defoaming device are both installed with the primary A/O pool.
4. A kitchen waste sewage treatment system according to claim 1, wherein: the slag discharging ports of the three-phase separator, the second dehydrator and the dissolved air flotation machine are communicated with the inlet of the high-temperature aerobic fermentation machine.
5. A kitchen waste sewage treatment system according to claim 1, wherein: and deodorizers are arranged at the outer sides of the separation treatment unit (1) and the biochemical treatment unit (3).
6. A kitchen waste sewage treatment system according to claim 1, wherein: the fermentation tank adopts a CSTR anaerobic fermentation tank.
7. A kitchen waste sewage treatment system according to claim 1, wherein: the second dehydrator adopts a horizontal spiral centrifugal dehydrator.
8. A kitchen waste sewage treatment system according to claim 1, wherein: the MBR membrane tank is a split immersed type special MBR membrane tank for percolate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322183263.8U CN220579057U (en) | 2023-08-14 | 2023-08-14 | Kitchen waste sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322183263.8U CN220579057U (en) | 2023-08-14 | 2023-08-14 | Kitchen waste sewage treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220579057U true CN220579057U (en) | 2024-03-12 |
Family
ID=90118102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322183263.8U Active CN220579057U (en) | 2023-08-14 | 2023-08-14 | Kitchen waste sewage treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220579057U (en) |
-
2023
- 2023-08-14 CN CN202322183263.8U patent/CN220579057U/en active Active
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