CN111744929B - Method for cooperatively treating kitchen waste, household garbage and sludge of sewage plant - Google Patents
Method for cooperatively treating kitchen waste, household garbage and sludge of sewage plant Download PDFInfo
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- CN111744929B CN111744929B CN202010631870.4A CN202010631870A CN111744929B CN 111744929 B CN111744929 B CN 111744929B CN 202010631870 A CN202010631870 A CN 202010631870A CN 111744929 B CN111744929 B CN 111744929B
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 91
- 239000010802 sludge Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000010806 kitchen waste Substances 0.000 title claims abstract description 24
- 239000010865 sewage Substances 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000010791 domestic waste Substances 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 239000002699 waste material Substances 0.000 claims abstract description 18
- 239000010812 mixed waste Substances 0.000 claims abstract description 10
- 230000015556 catabolic process Effects 0.000 claims abstract description 9
- 238000006731 degradation reaction Methods 0.000 claims abstract description 9
- 239000002028 Biomass Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 8
- 238000005406 washing Methods 0.000 claims abstract description 8
- 238000006065 biodegradation reaction Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000006148 magnetic separator Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 9
- 239000002912 waste gas Substances 0.000 claims description 9
- 239000002351 wastewater Substances 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000004062 sedimentation Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000005485 electric heating Methods 0.000 claims description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000002195 synergetic effect Effects 0.000 claims 4
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000000703 high-speed centrifugation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012615 aggregate Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- -1 wherein Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a method for cooperatively treating kitchen waste, household waste and sludge of a sewage plant, which collects mixed waste comprising the kitchen waste, the household waste and the sludge and adopts the following steps to treat the mixed waste: washing and filtering the mixed garbage to separate the sludge from the mixed garbage; crushing the mixed garbage, and then dehydrating until the water content of the mixed garbage is 30-50%; sending the mixed garbage to a biomass separator, crushing the mixed garbage, and filtering to separate the household garbage and the kitchen garbage; drying the separated household garbage, then sending the dried household garbage to a magnetic separator, separating out metal solid matters and recycling the metal solid matters; sending the kitchen waste and the sludge after being crushed into a degradation tank for biodegradation, and incinerating the nonmetallic household waste. This application leads to can separate mixing rubbish effectively in the course of working, the time of reduction waste classification that can the certain degree.
Description
Technical Field
The invention relates to the field of garbage treatment, in particular to a method for cooperatively treating kitchen garbage, household garbage and sludge of a sewage plant.
Background
The garbage is solid waste generated in daily life and production of human beings, has large discharge amount, complex and various components, pollution, resource and socialization, needs harmless, resource, reduction and socialization treatment, and can pollute the environment, influence the environmental sanitation, waste resources, destroy the safety of production and life and destroy the social harmony if the garbage cannot be properly treated. The garbage disposal is to rapidly remove the garbage, perform harmless treatment and finally reasonably utilize the garbage. The garbage disposal methods widely used today are sanitary landfills, high temperature composting and incineration. The purpose of garbage treatment is harmlessness, resource utilization and reduction.
In the prior art, waste is generally classified manually before treatment and then different types of waste are treated respectively, so how to classify the waste in the waste treatment process is an urgent problem to be solved in the field.
Disclosure of Invention
The invention aims to provide a method for cooperatively treating kitchen waste, household waste and sludge of a sewage plant, which can separate the waste in the treatment process.
In order to solve the technical problem, the invention provides the following scheme: a method for cooperatively treating kitchen waste, household waste and sludge of a sewage plant collects mixed waste comprising the kitchen waste, the household waste and the sludge and adopts the following steps to treat the mixed waste:
s1: washing and filtering the mixed garbage to separate the sludge from the mixed garbage;
s2: crushing the mixed garbage processed in the step S1, and then dehydrating until the water content of the mixed garbage is 30-50%;
s3: sending the mixed garbage obtained in the step S2 to a biomass separator, crushing the mixed garbage, and filtering to separate the household garbage and the kitchen garbage;
s4: drying the household garbage separated in the step S3, and then sending the household garbage to a magnetic separator, separating out metal solid and recovering;
s5: feeding the kitchen waste and the sludge crushed in the step S3 into a degradation tank for biodegradation, and burning the nonmetallic household waste in the step S4;
in the step S2, the mixed garbage is dewatered by an extrusion water filtering mechanism, the extrusion water filtering mechanism comprises a feed inlet, a discharge outlet and a conveying mechanism, the conveying mechanism comprises an auger and a filter screen, the feed inlet and the discharge outlet are respectively arranged at two ends of the filter screen, the auger is rotationally matched with the filter screen, the auger comprises a rotating shaft and a feeding plate spirally arranged on the surface of the rotating shaft, the rotating shaft extends along the length direction of the filter screen, the diameter of the rotating shaft is gradually increased from the feed inlet to the discharge outlet, one end of the rotating shaft close to the discharge outlet is provided with a cavity, the rotating shaft is provided with a plurality of meshes communicated with the interior of the cavity, and the cavity is filled with water-absorbing filler; and a heating mechanism is arranged on the inner side of the water absorption filler.
Further, the method comprises the following steps: the step S2 further includes a step S201 of collecting the waste liquid separated from the mixed waste, and performing oil-water separation on the waste liquid to separate waste water and oil.
Further, the method comprises the following steps: the step S2 further includes a step S202 of injecting the wastewater subjected to oil-water separation into the degradation tank.
Further, the method comprises the following steps: step S501 is further included after step S5, and the product after biodegradation is introduced into a sedimentation tank for sedimentation.
Further, the method comprises the following steps: step S502 is further included after the step S5, waste gas generated by burning the household garbage is led into a spray tower to neutralize the waste gas, and the pH value of the waste gas is enabled to reach 6-8.
Further, the method comprises the following steps: the heating mechanism comprises an electric heating piece and an insulating heat conduction outer sleeve wrapped on the outer side of the electric heating piece.
Further, the method comprises the following steps: the insulating heat-conducting outer sleeve is made of magnesium oxide ceramic, heat-conducting silica gel or heat-conducting polyurethane.
The invention has the beneficial effects that: this application leads to can separate mixing rubbish effectively in the course of working, the time of reduction waste classification that can the certain degree.
Drawings
FIG. 1 is a schematic flow chart of the present application;
FIG. 2 is a schematic view of an extrusion water filtering mechanism;
FIG. 3 is a schematic cross-sectional view of the end of the auger shaft;
the reference numbers are as follows: a feed inlet 1, a discharge outlet 2, an auger 3, a rotating shaft 31, a feeding plate 33, meshes 34, a water absorption filler 35, a heating mechanism 36 and a filter screen 4.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it.
The following discloses many different embodiments or examples for implementing the subject technology described. While specific examples of one or more arrangements of features are described below to simplify the disclosure, the examples should not be construed as limiting the invention, and the first feature described later in the specification in conjunction with the second feature may include embodiments that are directly related, may also include embodiments that form additional features, and further may include embodiments in which one or more additional intervening features are used to indirectly connect or combine the first and second features to each other, so that the first and second features may not be directly related.
As shown in fig. 1, an embodiment of a method for co-processing mixed garbage, domestic garbage and sludge of a sewage plant collects the mixed garbage including kitchen garbage, domestic garbage and sludge, and processes the mixed garbage by the following steps:
s1: and washing and filtering the mixed garbage to separate sludge from the mixed garbage.
In this step, since the sludge is usually attached to other garbage in the mixed garbage and is mostly small-particle silt, most of the silt mixed in the mixed garbage can be removed by washing and filtering with a filtering structure, and most of the sludge can be separated from the mixed garbage after washing and filtering.
S2: crushing the mixed garbage processed in the step S1, and then dehydrating until the water content of the mixed garbage is 30-50%;
it is specific, can adopt the breaker to carry out the breakage to mixed rubbish, extrude mixed rubbish through the breaker, smash the great mixed rubbish of granule for the mixed rubbish of tiny granule, extrude mixed rubbish this moment, the mode of stewing or drying is dehydrated, in order to detach the partial moisture among the mixed rubbish, this in-process again, need monitor the moisture content of mixed rubbish, the moisture content of mixed rubbish reaches and stops the dehydration when 30% -50% reaches, the mixed rubbish of this moisture content both can certain mobility, make mixed rubbish have certain consistency again, can not make and have great clearance between the rubbish, so that subsequent processing.
In addition, on the basis of the above, in at least some embodiments, step S2 further includes step S201 and step S202, specifically:
s201: and collecting the waste liquid separated from the mixed garbage, and introducing the waste liquid into an oil-water separator to separate oil in the waste liquid from the waste water.
S202: and injecting the wastewater subjected to oil-water separation into a degradation tank.
Because the kitchen garbage among the mixed waste contains a large amount of oil content, the oil content is difficult by biodegradable, consequently, let in oil water separator with the waste liquid behind the waste liquid of collecting deviating from earlier to the oil content in the waste liquid of discharging, then let in waste water to the degradation pond in, can better handle waste water.
S3: and (5) sending the mixed garbage processed in the step S2 to a biomass separator, crushing the mixed garbage, and filtering to separate the household garbage and the kitchen garbage.
Concretely, this biomass separation machine can select for use the biomass separation machine of three letter environmental protection equipment production, when the moisture content control of mixed waste is in 30% -50%, because domestic waste is relatively poor for kitchen garbage water storage nature, consequently most of moisture concentrates in kitchen waste, at this moment, under the high-speed centrifugation of biomass separation machine, the plastics that the quality is lighter and be difficult for absorbing water, aggregate and fibre are because the moisture content is low, then be thrown away under high-speed centrifugation easily, and glass, the great harder domestic waste of weight such as building stones and metal, then be difficult to be broken into tiny granule under high-speed centrifugation's effect, through biomass separation machine, kitchen waste is broken into the thick liquids, through filtering the thick liquids, then can be light separate these heavy domestic waste from kitchen waste's thick liquids.
S4: and (4) drying the household garbage separated in the step (S3), and then sending the household garbage to a magnetic separator to separate out metal solid and recover the metal solid. Specifically, the magnetic separator can be produced by Xinjian machinery company Limited, and the domestic garbage and the metal in the domestic garbage can be separated by the magnetic separator.
S5: and (3) conveying the kitchen waste and the sludge into a degradation tank for biodegradation, drying and incinerating the domestic waste, and finishing treatment.
In some embodiments, step S501 is further included after step S5, the kitchen waste, sludge and wastewater after degradation are introduced into a sedimentation tank for sedimentation, and since the sludge contains a large amount of non-degradable products such as silt and stone, and a part of non-degradable residues may also exist in the kitchen waste, the biodegradable products are introduced into the sedimentation tank for standing sedimentation, so that the degraded liquid and the non-degradable residues can be better separated.
In some embodiments, step S5 is followed by step S502 of introducing the waste gas generated by burning the household garbage into a spray tower, and neutralizing the waste gas by acid washing or alkali washing to make the pH of the waste gas reach 6-8.
It should be understood that the above steps S501 and S502 are not in sequence, i.e. they may be performed simultaneously or sequentially.
Further, the mixed garbage may be dehydrated by pressing in step S2. In a specific embodiment, the mixed garbage can be dewatered by the squeezing and water filtering mechanism, as shown in fig. 2 and fig. 3, the squeezing and water filtering mechanism comprises a feed inlet 1, a discharge outlet 2 and a conveying mechanism, the feed inlet 1 and the discharge outlet 2 are respectively located at two ends of the conveying mechanism, the conveying mechanism comprises an auger 3 and a filter screen 4, the auger 3 is arranged in the filter screen 4, the feed inlet 1 and the discharge outlet 2 are communicated with the inside of the filter screen 4, the auger 3 comprises a rotating shaft 31 and a feed plate 33 spirally arranged at the outer side of the rotating shaft 31, the rotating shaft 31 extends along the length direction of the filter screen 4, two ends of the rotating shaft are matched with the filter screen 4 in a rotating manner, the diameter of the rotating shaft 31 is gradually increased from the feed inlet 1 to the discharge outlet 2, a cavity is arranged at one end of the rotating shaft 31, a plurality of meshes 34 are arranged on the rotating shaft 31 and communicated with the inside of the cavity, and water-absorbing filler 35 is filled in the cavity.
The extrusion water filtering mechanism has the working principle that materials to be dehydrated are added from the feeding port 1, the packing auger 3 rotates at the moment, the packing auger 3 can be driven by a motor or a hand-operated mode, the materials are conveyed towards the discharging port 2 along the feeding plate 33 along with the rotation of the packing auger 3, the gap between the packing auger 3 and the filter screen 4 is gradually reduced as the rotating shaft 31 of the packing auger 3 is gradually increased, the packing auger 3 and the filter screen 4 gradually extrude the materials so as to dehydrate the materials, the dehydrated materials are mixed garbage, wherein, solid matters in the household garbage can not be well dehydrated by extrusion sometimes, therefore, a cavity is also arranged at one end of the packing auger 3 close to the discharging port 2, water absorbing filler 35 is filled in the cavity, when the materials are conveyed to one end of the packing auger 3 close to the discharging port 2, at the moment, the gap between the garbage is compressed to be smaller, the fine gaps form a plurality of liquid guide channels, when the garbage moves to the end part of the rotating shaft 31 close to the discharge port 2 along with the packing auger 3, the water absorption filling 35 absorbs liquid, and water attached to solid is easier to enter the water absorption filling 35 in the cavity of the packing auger 3 along the gaps of the mixed garbage, so that the water absorption filling 35 absorbs the water, and a better dehydration effect is obtained, wherein the water absorption filling 35 can be, but not limited to, water absorption ceramic.
In some embodiments, as shown in fig. 3, a heating mechanism 36 is disposed inside the water absorbent filler 35, and the water absorbent filler 35 can be dried by the heating mechanism 36 after the dehydration is completed, so as to be reused, in a specific embodiment, the heating mechanism 36 includes an electric heating element and an insulating heat-conducting jacket wrapped outside the electric heating element. The insulating and thermally conductive outer jacket may be, but is not limited to, magnesia ceramic, thermally conductive silica gel, or thermally conductive polyurethane.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (7)
1. A method for cooperatively treating kitchen waste, household waste and sludge of a sewage plant is characterized by collecting mixed waste comprising the kitchen waste, the household waste and the sludge and treating the mixed waste by adopting the following steps:
s1: washing and filtering the mixed garbage to separate the sludge from the mixed garbage;
s2: crushing the mixed garbage processed in the step S1, and then dehydrating until the water content of the mixed garbage is 30-50%;
s3: sending the mixed garbage obtained in the step S2 to a biomass separator, crushing the mixed garbage, and filtering to separate the household garbage and the kitchen garbage;
s4: drying the household garbage separated in the step S3, and then sending the household garbage to a magnetic separator, separating out metal solid and recovering;
s5: feeding the kitchen waste and the sludge crushed in the step S3 into a degradation tank for biodegradation, and burning the nonmetallic household waste in the step S4;
in the step S2, the mixed garbage is dewatered by an extrusion water filtering mechanism, the extrusion water filtering mechanism comprises a feed inlet, a discharge outlet and a conveying mechanism, the conveying mechanism comprises an auger and a filter screen, the feed inlet and the discharge outlet are respectively arranged at two ends of the filter screen, the auger is rotationally matched with the filter screen, the auger comprises a rotating shaft and a feeding plate spirally arranged on the surface of the rotating shaft, the rotating shaft extends along the length direction of the filter screen, the diameter of the rotating shaft is gradually increased from the feed inlet to the discharge outlet, one end of the rotating shaft close to the discharge outlet is provided with a cavity, the rotating shaft is provided with a plurality of meshes communicated with the interior of the cavity, and the cavity is filled with water-absorbing filler; and a heating mechanism is arranged on the inner side of the water absorption filler.
2. The method for co-processing the kitchen waste, the household waste and the sludge of the sewage plant according to claim 1, wherein the step S2 further comprises the step S201 of collecting the waste liquid removed from the mixed waste, and performing oil-water separation on the waste liquid to separate the waste water and the oil component.
3. The method for the synergistic treatment of the kitchen waste, the household waste and the sludge of the sewage plant as recited in claim 2, wherein the step S2 further comprises a step S202 of injecting the wastewater after the oil-water separation into the degradation tank.
4. The method for the cooperative treatment of the kitchen waste, the household waste and the sewage treatment plant sludge as recited in claim 1 or 2, characterized in that the step S5 is followed by a step S501 of introducing the products after the biodegradation into a sedimentation tank for sedimentation.
5. The method for the synergistic treatment of the kitchen waste, the household waste and the sludge of the sewage plant as claimed in claim 1 or 2, wherein the step S5 is followed by a step S502 of introducing the waste gas generated by the incineration of the household waste into a spray tower to neutralize the waste gas so that the pH value of the waste gas reaches 6-8.
6. The method for the synergistic treatment of the kitchen waste, the household waste and the sewage treatment plant sludge according to claim 1, wherein the heating mechanism comprises an electric heating element and an insulating heat-conducting outer sleeve which is wrapped outside the electric heating element.
7. The method for the synergistic treatment of the kitchen waste, the household waste and the sludge of the sewage plant as claimed in claim 6, wherein the insulating heat-conducting outer sleeve is made of magnesia ceramic, heat-conducting silica gel or heat-conducting polyurethane.
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| CN202010631870.4A CN111744929B (en) | 2020-07-02 | 2020-07-02 | Method for cooperatively treating kitchen waste, household garbage and sludge of sewage plant |
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| CN202010631870.4A CN111744929B (en) | 2020-07-02 | 2020-07-02 | Method for cooperatively treating kitchen waste, household garbage and sludge of sewage plant |
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| CN107685067A (en) * | 2017-09-28 | 2018-02-13 | 苏州美生环保科技有限公司 | A kind of integrated system of garbage disposal |
| CN110127986A (en) * | 2019-05-15 | 2019-08-16 | 河北九知农业科技有限公司 | A kind of sludge reduction, innoxious, resource utilization method and product line device |
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