CN216039323U - Kitchen waste resourceful treatment system - Google Patents
Kitchen waste resourceful treatment system Download PDFInfo
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- CN216039323U CN216039323U CN202122569224.2U CN202122569224U CN216039323U CN 216039323 U CN216039323 U CN 216039323U CN 202122569224 U CN202122569224 U CN 202122569224U CN 216039323 U CN216039323 U CN 216039323U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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Abstract
The utility model provides a kitchen garbage resourceful treatment system, belongs to kitchen garbage processing technology field, and it includes: the system comprises a fermentation bin, a waste gas treatment unit and a wastewater treatment unit; a feed inlet for the kitchen waste after pretreatment is arranged on the fermentation bin, and a discharge outlet for discharging the fertilizer produced after fermentation is arranged on the fermentation bin; the waste gas treatment unit is connected with an exhaust port of the fermentation bin and used for treating waste gas discharged from the fermentation bin, and the waste water treatment unit is connected with an exhaust port of the fermentation bin and used for treating waste water discharged from the fermentation bin. The system not only realizes the resource treatment of the kitchen waste, but also realizes the efficient removal of the waste water and the waste gas, avoids secondary pollution, has small occupied area, good treatment effect and high automation degree, and can generate better economic benefit and environmental benefit.
Description
Technical Field
The utility model relates to the technical field of kitchen waste treatment, in particular to a kitchen waste recycling treatment system.
Background
According to survey data, about 3 hundred million tons of domestic garbage are produced every year in China, about 35 percent of the domestic garbage is occupied by kitchen garbage, and after the garbage is classified, about 9000 ten thousand tons of garbage are cleared every year in China and are in an increasing trend year by year. The kitchen waste is the most main component of organic solid waste after waste classification and is also the most main carrier of household waste organic carbon, and the kitchen waste organic carbon treatment is the most important research object of carbon peak reaching and carbon neutralization. Under the carbon neutralization vision, the unbalanced balance of income and expenditure needs to be broken while resource utilization and carbon emission reduction are realized, economic benefits are realized, and higher requirements are provided for kitchen waste disposal technologies.
The kitchen waste is basically perishable organic matter, has characteristics such as moisture content is high, the grease content is high, contain unstable impurity, and kitchen waste has bright resource availability and easily produces secondary pollution's dual attribute simultaneously, if dispose improper easily send out the stink, produce high concentration organic waste water, seriously pollute the environment.
At present, domestic common kitchen waste disposal processes comprise the following steps: the method comprises the steps of compressed landfill, refuse incineration, anaerobic fermentation, aerobic composting and the like, wherein the compressed landfill process is more traditional, the defects of large land occupation and easy generation of refuse leachate which is difficult to treat are overcome, the incineration method is simple in process, but SO is generated in the incineration process2Harmful gases such as dioxin and the like are difficult to treat; and the combustion improver required by combustion has high cost; anaerobic fermentation is adopted for the kitchen waste, the system is unstable in operation, the process is complex, and the generated biogas residues and biogas slurry are difficult to treat; the aerobic composting process has flexible investment scale, can be disposed nearby, and reduces the collection and transportation cost; meanwhile, the fermented and decomposed materials are processed into organic fertilizers, so that resource utilization can be realized, and the process is a kitchen waste treatment process with a good prospect. However, in the aerobic fermentation process, waste water with high salt and high grease and gas with large odor such as hydrogen sulfide are generated, and if the waste water is not properly treated, secondary pollution is caused.
Therefore, it is necessary to design a recycling system for kitchen waste to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the kitchen waste recycling treatment system is provided, so that the kitchen waste recycling treatment is realized, the high-efficiency removal of waste water and waste gas is realized, the secondary pollution is avoided, the whole system is small in occupied area, good in treatment effect and high in automation degree, and better economic benefit and environmental benefit can be generated.
The utility model provides a resourceful treatment system for kitchen waste, which comprises: the system comprises a fermentation bin, a waste gas treatment unit and a wastewater treatment unit;
a feed inlet for the kitchen waste after pretreatment is arranged on the fermentation bin, and a discharge outlet for discharging the fertilizer produced after fermentation is arranged on the fermentation bin; the waste gas treatment unit is connected with an exhaust port of the fermentation bin and is used for treating waste gas discharged by the fermentation bin, and the waste water treatment unit is connected with a discharge port of the fermentation bin and is used for treating waste water discharged by the fermentation bin;
the waste gas treatment unit comprises a spray tower, a gas filter, a fan and a plasma UV photo-oxidation catalysis all-in-one machine which are sequentially connected; the wastewater treatment unit comprises an oil-water separator, a lift pump, a UASB anaerobic reactor and an ultrafiltration membrane reactor which are connected in sequence.
Preferably, the water outlet end of a circulating water pump is connected with the spray tower to spray water for the top of the spray tower.
Preferably, the gas outlet end of the plasma UV photo-oxygen catalysis all-in-one machine is connected with a chimney.
Preferably, the water outlet end of the ultrafiltration membrane reactor is connected with a water production pump.
Preferably, the sewage discharge ends of the UASB anaerobic reactor and the ultrafiltration membrane reactor are connected with a sludge concentration tank through a sludge pump.
Preferably, the shell of the fermentation bin is made of carbon steel, the lining of the fermentation bin is made of stainless steel, and the fermentation bin is composed of 2-4 fermentation bin bodies.
Preferably, the gas filter is a tubular filter, the shell is made of aluminum alloy, the filter element is made of stainless steel, and the filtering precision is 40-50 microns.
Preferably, the UASB anaerobic reactor tank body is made of carbon steel for corrosion prevention, and the interior of the tank body is made of epoxy resin paint for corrosion prevention. Wherein, the volume of the UASB anaerobic reactor is less than 3000 cubic meters, and the UASB anaerobic reactor meets the design specification and the design requirement.
Preferably, the ultrafiltration membrane reactor is composed of one or more groups of hollow fiber ultrafiltration membrane components, the membrane material is polyvinyl chloride, and the membrane filtration precision is 0.01-0.1 micron.
The kitchen waste is pretreated and then is subjected to aerobic fermentation, so that resource treatment of the produced organic fertilizer is realized, and meanwhile, effective process is adopted for deep treatment of waste gas and waste water generated in the fermentation process.
For waste gas, a spray tower, a filtering and plasma UV photo-oxygen catalysis integrated machine is adopted to purify the waste gas, dust and particles in the waste gas are removed through multiple times of water washing and spraying, pollutants in the waste gas are deeply degraded into low-molecular harmless substances through the actions of cracking, oxidizing and the like under the action of high-energy UV light beams after filtering, and the whole waste gas treatment process has the advantages of simple structure, small gas pressure drop, difficulty in blocking, high automation degree, small occupied area and good purification effect; the treated waste gas meets the requirements of relevant odor emission indexes specified in the Integrated emission Standard of atmospheric pollutants (GB16297-1996) and the emission Standard of odor pollutants (GB14554-1993), and can be directly discharged into the atmosphere.
For the wastewater, a UASB anaerobic reactor and an MBR combined process are adopted for treatment, firstly, macromolecular organic pollutants are degraded through the UASB, then ammonia nitrogen, suspended matters, colloid and the like are further removed through the MBR, and the effluent meets the Water quality Standard for discharging the wastewater into the urban sewer (GB/T31962 and 2015), so that the wastewater can be directly discharged into municipal pipe networks. The whole set of wastewater treatment unit has small occupied area, high pollutant removal rate and high automatic control degree.
Compared with the prior art, the utility model has the following beneficial effects: harmless and recycling of the kitchen waste is realized, and harmless and comprehensive treatment and management of waste gas and waste water generated in kitchen waste treatment and fermentation can be synchronously realized; compared with the traditional process, the method has the advantages of small floor area, low investment cost, low operation energy consumption, high automation degree, no secondary pollution, remarkable economic benefit and the like.
Drawings
Fig. 1 is a schematic structural diagram of a kitchen waste resourceful treatment system according to a preferred embodiment of the present invention;
the reference numbers illustrate:
1. the system comprises a fermentation bin, 2, a spray tower, 3, a circulating water pump, 4, a gas filter, 5, a fan, 6, a plasma UV photo-oxygen catalysis integrated machine, 7, a chimney, 8, an oil-water separator, 9, a lift pump, 10, a UASB anaerobic reactor, 11, an ultrafiltration membrane reactor, 12, a water production pump, 13, a sludge pump, 14 and a sludge concentration tank.
Detailed Description
The technical scheme of the utility model is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the kitchen waste resourceful treatment system provided by this embodiment includes: the system comprises a fermentation bin 1, a waste gas treatment unit and a wastewater treatment unit; a feed inlet for kitchen waste after pretreatment to enter is formed in the fermentation bin 1, and a discharge outlet is formed in the fermentation bin 1 and used for discharging fertilizer produced after fermentation; the waste gas treatment unit is connected with an exhaust port of the fermentation bin 1 and used for treating waste gas discharged from the fermentation bin 1, and the waste water treatment unit is connected with an exhaust port of the fermentation bin 1 and used for treating waste water discharged from the fermentation bin 1.
The waste gas treatment unit comprises a spray tower 2, a gas filter 4, a fan 5 and a plasma UV photo-oxidation catalysis all-in-one machine 6 which are connected in sequence; the wastewater treatment unit comprises an oil-water separator 8, a lift pump 9, a UASB anaerobic reactor 10 and an ultrafiltration membrane reactor 11 which are connected in sequence.
Meanwhile, in the waste gas treatment unit, the water outlet end of the circulating water pump 3 is connected with the spray tower 2 to spray water for supplying water to the top of the spray tower 2; the air outlet end of the plasma UV photo-oxygen catalysis all-in-one machine 6 is connected with a chimney 7. In the wastewater treatment unit, the water outlet end of an ultrafiltration membrane reactor 11 is connected with a produced water pump 12; the sewage discharging ends of the UASB anaerobic reactor 10 and the ultrafiltration membrane reactor 11 are both connected with a sludge concentration tank 14 through a sludge pump 13.
Specifically, the shell of the fermentation bin 1 is made of carbon steel, the lining of the fermentation bin is made of stainless steel, and the fermentation bin is composed of 2-4 fermentation bin bodies, so that the fermentation efficiency is improved. The gas filter 4 is a tubular filter, the shell is made of aluminum alloy, the filter element is made of stainless steel, the filtering precision is 40-50 microns, and impurities in gas can be effectively filtered. The diameter of the UASB anaerobic reactor 10 is 2.8 meters, the height is 8 meters, the tank body is made of carbon steel for corrosion prevention, and the interior of the tank body is epoxy resin paint for corrosion prevention. The ultrafiltration membrane reactor 11 is composed of one or more groups of hollow fiber ultrafiltration membrane components, the membrane material is polyvinyl chloride, and the membrane filtration precision is 0.01-0.1 micron.
When the kitchen waste is actually used, after the kitchen waste is sorted, crushed, dehydrated and deoiled, the materials with the water content of about 60% are formed and enter the fermentation bin 1, the materials are subjected to microbial fermentation at the temperature of 50-65 ℃, organic fertilizers can be produced after the materials are fermented for about 7 days, the fertilizers can be sold to the outside, and the resource treatment of the kitchen waste is realized.
Simultaneously, waste gas generated at the top of the fermentation bin 1 in the fermentation process firstly enters the spray tower 2 after being collected by a pipeline, tap water is extracted by the circulating water pump 3 and sprayed from the top of the spray tower 2, the water forms a vaporific or water drop shape in the tower, so that gas-liquid contact and mass transfer are facilitated, most of dust and particles in the waste gas can be removed through multiple times of washing purification, and the concentration of the waste gas is reduced. The waste gas after processing passes through the gas filter 4, embeds removable accurate filter core, further holds back the foreign particle in the waste gas, protects back end plasma UV light oxygen catalysis all-in-one 6, prevents to block up. The filtered waste gas is conveyed to a plasma UV photo-oxygen catalysis all-in-one machine 6 through a fan 5, the waste gas is deeply degraded into low-molecular harmless substances through the actions of cracking, oxidizing and the like under the action of high-energy UV light beams, and the treated waste gas is discharged into the atmosphere through a chimney 7.
The waste water generated in the fermentation process of the materials is discharged through the bottom of the fermentation bin 1, the waste water firstly enters the oil-water separator 8 to remove grease, the collected grease can be used as a raw material for preparing biodiesel and has a certain economic value, then the sewage is lifted to the UASB anaerobic reactor 10 through the lifting pump 9 to decompose organic pollutants which are difficult to degrade in the incoming water, the UASB load capacity is very large, and the UASB anaerobic reactor is suitable for treating high-concentration organic waste water, so that the concentration of the pollutants in the treated outlet water is low, the outlet water enters the ultrafiltration membrane reactor 11 along with the pollutant, suspended matters and particles are further removed, and the outlet water is lifted by the water production pump 12 and then reaches the standard to be discharged. Excess sludge discharged by the UASB anaerobic reactor 10 and the ultrafiltration membrane reactor 11 is conveyed and discharged to a sludge concentration tank 14 through a sludge pump 13 and is periodically transported and treated.
The system not only realizes the resource treatment of the kitchen waste, but also realizes the efficient removal of the waste water and the waste gas, avoids secondary pollution, has small occupied area, good treatment effect and high automation degree, and can generate better economic benefit and environmental benefit.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a kitchen garbage resourceful treatment system which characterized in that includes: the system comprises a fermentation bin, a waste gas treatment unit and a wastewater treatment unit;
a feed inlet for the kitchen waste after pretreatment is arranged on the fermentation bin, and a discharge outlet for discharging the fertilizer produced after fermentation is arranged on the fermentation bin; the waste gas treatment unit is connected with an exhaust port of the fermentation bin and is used for treating waste gas discharged by the fermentation bin, and the waste water treatment unit is connected with a discharge port of the fermentation bin and is used for treating waste water discharged by the fermentation bin;
the waste gas treatment unit comprises a spray tower, a gas filter, a fan and a plasma UV photo-oxidation catalysis all-in-one machine which are sequentially connected; the wastewater treatment unit comprises an oil-water separator, a lift pump, a UASB anaerobic reactor and an ultrafiltration membrane reactor which are connected in sequence.
2. The kitchen waste recycling treatment system as claimed in claim 1, characterized in that: the water outlet end of a circulating water pump is connected with the spray tower to spray and supply water to the top of the spray tower.
3. The kitchen waste recycling treatment system as claimed in claim 1, characterized in that: the air outlet end of the plasma UV photo-oxygen catalysis all-in-one machine is connected with a chimney.
4. The kitchen waste recycling treatment system as claimed in claim 1, characterized in that: the water outlet end of the ultrafiltration membrane reactor is connected with a water producing pump.
5. The kitchen waste recycling treatment system as claimed in claim 1, characterized in that: the sewage discharge ends of the UASB anaerobic reactor and the ultrafiltration membrane reactor are connected with a sludge concentration tank through a sludge pump.
6. The kitchen waste recycling treatment system as claimed in claim 1, characterized in that: the shell of the fermentation bin is made of carbon steel, the lining of the fermentation bin is made of stainless steel, and the fermentation bin is composed of 2-4 fermentation bin bodies.
7. The kitchen waste recycling treatment system as claimed in claim 1, characterized in that: the gas filter is a tubular filter, the shell is made of aluminum alloy, the filter element is made of stainless steel, and the filtering precision is 40-50 microns.
8. The kitchen waste recycling treatment system as claimed in claim 1, characterized in that: the tank body of the UASB anaerobic reactor is made of carbon steel for corrosion prevention, and the interior of the tank body is made of epoxy resin paint for corrosion prevention.
9. The kitchen waste recycling treatment system as claimed in claim 1, characterized in that: the ultrafiltration membrane reactor is composed of one or more groups of hollow fiber ultrafiltration membrane components, the membrane material is polyvinyl chloride, and the membrane filtration precision is 0.01-0.1 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122569224.2U CN216039323U (en) | 2021-10-25 | 2021-10-25 | Kitchen waste resourceful treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122569224.2U CN216039323U (en) | 2021-10-25 | 2021-10-25 | Kitchen waste resourceful treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216039323U true CN216039323U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122569224.2U Active CN216039323U (en) | 2021-10-25 | 2021-10-25 | Kitchen waste resourceful treatment system |
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| CN (1) | CN216039323U (en) |
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2021
- 2021-10-25 CN CN202122569224.2U patent/CN216039323U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Resource-based Treatment System for Kitchen Waste Effective date of registration: 20230628 Granted publication date: 20220315 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: Junji Environmental Technology Co.,Ltd. Registration number: Y2023420000270 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |