CN110813976A - Comprehensive treatment method for full recycling of municipal refuse - Google Patents
Comprehensive treatment method for full recycling of municipal refuse Download PDFInfo
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- CN110813976A CN110813976A CN201910901668.6A CN201910901668A CN110813976A CN 110813976 A CN110813976 A CN 110813976A CN 201910901668 A CN201910901668 A CN 201910901668A CN 110813976 A CN110813976 A CN 110813976A
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000004064 recycling Methods 0.000 title abstract description 7
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 82
- 230000008569 process Effects 0.000 claims abstract description 26
- 239000002699 waste material Substances 0.000 claims abstract description 26
- 238000000197 pyrolysis Methods 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011464 hollow brick Substances 0.000 claims abstract description 5
- 238000000855 fermentation Methods 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 9
- 238000004537 pulping Methods 0.000 claims description 8
- 239000011449 brick Substances 0.000 claims description 6
- 230000004151 fermentation Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 238000010248 power generation Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 239000010926 waste battery Substances 0.000 claims description 6
- 239000003337 fertilizer Substances 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 238000010564 aerobic fermentation Methods 0.000 claims description 3
- 239000004566 building material Substances 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims description 3
- 238000004332 deodorization Methods 0.000 claims description 3
- 239000012634 fragment Substances 0.000 claims description 3
- 239000002920 hazardous waste Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000007885 magnetic separation Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000002912 waste gas Substances 0.000 abstract description 6
- 239000002351 wastewater Substances 0.000 abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 239000003895 organic fertilizer Substances 0.000 abstract description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
-
- 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
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/02—Apparatus for the manufacture
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/07—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of solid raw materials consisting of synthetic polymeric materials, e.g. tyres
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M1/00—Apparatus for enzymology or microbiology
- C12M1/107—Apparatus for enzymology or microbiology with means for collecting fermentation gases, e.g. methane
-
- 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
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
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Abstract
The invention provides a comprehensive treatment method for urban garbage total resources, which classifies the urban domestic garbage according to different garbage categories, and recycles the urban domestic garbage according to the characteristics of different garbage to finally obtain energy resource products such as methane, pyrolysis oil, pyrolysis carbon powder, organic fertilizer, waste metal, building hollow bricks and the like, thereby realizing the recycling, harmlessness, reduction, industrialization and maximum profit of the domestic garbage. And the whole treatment process has no waste water, waste gas, waste residue and secondary pollution, and really realizes the comprehensive treatment of the garbage.
Description
Technical Field
The invention relates to a treatment process, in particular to a full-resource comprehensive treatment method for municipal garbage.
Background
At present, the following garbage disposal methods are mainly used in China and even in the world:
1. a landfill method: the urban domestic garbage is filled and buried by utilizing the land advantages of a ravine, a waste pit and the like in a mountain, although the garbage is treated superficially, secondary pollution caused by the burying is huge, and waste gas and waste water cause great pollution to the atmosphere and underground water sources, and meanwhile, the situation of leakage and the like can occur due to the long-time burying, and the soil can be damaged. In some lands and poor areas, the landfill method causes great waste of land resources.
2. The burning method comprises the following steps: the waste incineration method is the most common method for carrying out reduction treatment on waste at present, but waste gas (mainly dioxin), waste water and waste residues generated after incineration also cause secondary pollution, particularly dioxin, and is one of carcinogens identified by the world health organization.
3. The common garbage treatment process comprises the following steps: after the national advocates the garbage reduction, harmless and industrialized treatment mode, the treatment mode for garbage is infinite, but the secondary pollution is inevitable in the current treatment process, and the treatment efficiency of equipment is low.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a comprehensive treatment method for recycling municipal refuse, which can realize recycling, harmlessness, reduction, industrialization and maximum profit of household refuse, and the whole treatment process has no waste water, waste gas, waste residue and secondary pollution, thereby really realizing the comprehensive treatment of the refuse.
A comprehensive treatment method for urban garbage full resources comprises a garbage collection process, a garbage sorting process and a harmless resource treatment process,
the garbage collection procedure is to convey the garbage temporarily stored in the garbage transfer stations in a bag form into a garbage unloading area in a vehicle transportation mode;
the garbage sorting process is in the form of a sorting line, bagged garbage unloaded in the garbage unloading area is subjected to bag breaking treatment and then is sent into the sorting line for sorting, and the garbage is separated into five categories of organic garbage, building garbage, waste plastic and rubber garbage, waste metal and waste battery through the sorting processes of magnetic separation, air separation and the like and is discharged from different discharge ports;
the harmless resource treatment process comprises the following steps:
pulping the sorted organic garbage by using a raw material adjusting device, then sending the organic garbage into an anaerobic fermentation tank for fermentation, purifying biogas generated by fermentation for power generation, using the generated electricity for self use or merging into a power grid, and refluxing the waste heat generated by biogas power generation to the anaerobic fermentation tank; performing solid-liquid separation on the fermented raw materials, and performing aerobic fermentation on the biogas residues to produce organic fertilizers; the biogas slurry can be completely refluxed to a raw material adjusting device for subsequent pulping after being treated;
the sorted waste plastics are sent into a pyrolysis furnace, plastic rubber is cracked at high temperature to generate pyrolysis gas, pyrolysis oil and activated carbon powder, the generated pyrolysis gas is recycled through a pipeline and is used for combustion of the pyrolysis furnace, the pyrolysis oil can be refined and used again after being recycled, and the recycled activated carbon powder can be reused or sold;
the sorted building garbage contains bricks, stones, cement blocks, ceramic fragments and the like, and the building garbage can be made into new building materials such as hollow bricks, pavement bricks and the like after being crushed;
the sorted waste metal can be provided for a metal recovery station to be reused;
and the sorted waste batteries and the like are used as hazardous wastes and are treated in a centralized way.
Based on the above, except that the vehicle business turn over, the hatch door of rubbish unloading region is in the closed condition all the time other times to guarantee rubbish unloading region and external world are in the pressure confined state, avoid the stink of rubbish to spread outward.
Based on the above, the waste plastics remaining after the beating are also sent to a pyrolysis furnace for cracking.
Based on the above, a plurality of deodorization units are arranged in the whole treatment method.
Compared with the prior art, the method has substantive characteristics and progress, and particularly, the method classifies the municipal domestic garbage according to different garbage categories, and recycles the municipal domestic garbage according to the characteristics of different garbage, so that energy resource products such as methane, pyrolysis oil, pyrolysis carbon powder, organic fertilizer, waste metal, building hollow bricks and the like are finally obtained, and the domestic garbage is recycled, harmless, reduced, industrialized and maximized. And the whole treatment process has no waste water, waste gas, waste residue and secondary pollution, and really realizes the comprehensive treatment of the garbage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in figure 1, the comprehensive treatment method for the full recycling of the municipal refuse comprises a refuse collection process, a refuse sorting process and a harmless recycling process,
the garbage collection procedure is to convey the garbage temporarily stored in the garbage transfer stations in a bag form into a garbage unloading area in a vehicle transportation mode; preferably, the cabin door of the garbage discharging area is always in a closed state at other times except for the vehicle entering and exiting, so that the garbage discharging area and the outside are in a pressure closed state, and the odor of the garbage is prevented from diffusing outwards; a plurality of deodorization units are arranged in the whole treatment method.
The garbage sorting process is in the form of a sorting line, bagged garbage unloaded in the garbage unloading area is subjected to bag breaking treatment and then is sent into the sorting line for sorting, and the garbage is separated into five categories of organic garbage, building garbage, waste plastic and rubber garbage, waste metal and waste battery through sorting processes of magnetic separation, air separation, crushing and the like and is discharged from different discharge ports;
the harmless resource treatment process comprises the following steps:
the sorted waste plastics are sent into a pyrolysis furnace, plastic rubber is cracked at high temperature to generate pyrolysis gas, pyrolysis oil and carbon powder, the generated pyrolysis gas is recovered through a pipeline and is used for combustion of the pyrolysis furnace, the pyrolysis oil can be refined and used again after being recovered, and the recovered carbon powder can be reused or sold;
sending the sorted organic garbage into a raw material adjusting device for pulping, sending the pulped organic matters into an anaerobic fermentation tank for fermentation, purifying biogas generated by fermentation for power generation, using the generated power for self use or merging into a power grid, and refluxing the waste heat generated by biogas power generation to the anaerobic fermentation tank; performing solid-liquid separation on the fermented raw materials, performing aerobic fermentation on the biogas residues, and then using the biogas residues for producing organic fertilizers, wherein the produced high-efficiency organic fertilizers can be sold and used as a part of cost recovery; the biogas slurry can be completely refluxed to a raw material adjusting device for subsequent pulping after being treated; the waste plastics left after pulping are also sent into a pyrolysis furnace for cracking;
the sorted building garbage contains bricks, stones, cement blocks, ceramic fragments and the like, and the building garbage can be made into new building materials such as hollow bricks, pavement bricks and the like after being crushed;
the sorted waste metal can be provided for a metal recovery station to be reused;
and the sorted waste batteries and the like are used as hazardous wastes and are treated in a centralized way.
The municipal solid waste treated by the process is converted into energy resource products which can be utilized in daily life, so that the change of waste into treasure, pollution-free, waste-free, industrialized and full-resource production is really realized. And the whole treatment process has no waste water, waste gas, waste residue and secondary pollution, and really realizes the comprehensive treatment of the garbage.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. A full-resource comprehensive treatment method for urban garbage is characterized by comprising a garbage collection process, a garbage sorting process and a harmless resource treatment process,
the garbage collection procedure is to convey the garbage temporarily stored in the garbage transfer stations in a bag form into a garbage unloading area in a vehicle transportation mode;
the garbage sorting process is in the form of a sorting line, bagged garbage unloaded in the garbage unloading area is subjected to bag breaking treatment and then is sent into the sorting line for sorting, and the garbage is separated into five categories of organic garbage, building garbage, waste plastic and rubber garbage, waste metal and waste battery through the sorting processes of magnetic separation, air separation and the like and is discharged from different discharge ports;
the harmless resource treatment process comprises the following steps:
pulping the sorted organic garbage by using a raw material adjusting device, then sending the organic garbage into an anaerobic fermentation tank for fermentation, purifying biogas generated by fermentation for power generation, using the generated electricity for self use or merging into a power grid, and refluxing the waste heat generated by biogas power generation to the anaerobic fermentation tank; performing solid-liquid separation on the fermented raw materials, and performing aerobic fermentation on the biogas residues to produce organic fertilizers; the biogas slurry can be completely refluxed to a raw material adjusting device for subsequent pulping after being treated;
the sorted waste plastics are sent into a pyrolysis furnace, plastic rubber is cracked at high temperature to generate pyrolysis gas, pyrolysis oil and carbon powder, the generated pyrolysis gas is recovered through a pipeline and is used for combustion of the pyrolysis furnace, the pyrolysis oil can be refined and used again after being recovered, and the recovered carbon powder can be reused or sold;
the sorted building garbage contains bricks, stones, cement blocks, ceramic fragments and the like, and the building garbage can be made into new building materials such as hollow bricks, pavement bricks and the like after being crushed;
the sorted waste metal can be provided for a metal recovery station to be reused;
and the sorted waste batteries and the like are used as hazardous wastes and are treated in a centralized way.
2. The municipal refuse full-resource comprehensive treatment method according to claim 1, wherein: except that the vehicle enters and exits from the cabin door of the garbage unloading area, the cabin door of the garbage unloading area is always in a closed state at other times so as to ensure that the garbage unloading area and the outside are in a pressure closed state and prevent the odor of the garbage from diffusing outwards.
3. The municipal refuse full-resource comprehensive treatment method according to claim 1 or 2, wherein: the waste plastics left after pulping are also sent into a pyrolysis furnace for cracking.
4. The municipal refuse full-resource comprehensive treatment method according to claim 3, wherein: a plurality of deodorization units are arranged in the whole treatment method.
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| CN201910901668.6A CN110813976A (en) | 2019-09-23 | 2019-09-23 | Comprehensive treatment method for full recycling of municipal refuse |
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| CN201910901668.6A CN110813976A (en) | 2019-09-23 | 2019-09-23 | Comprehensive treatment method for full recycling of municipal refuse |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112108484A (en) * | 2020-08-05 | 2020-12-22 | 上海扬升生态农业有限公司 | Environment-friendly garbage treatment method for smart city |
| CN113020223A (en) * | 2021-03-26 | 2021-06-25 | 广东省科学院资源综合利用研究所 | Method for recycling urban resident domestic garbage through full-recycling comprehensive treatment |
| CN113822530A (en) * | 2021-08-19 | 2021-12-21 | 中国环境科学研究院 | Resource attribute evaluation method and system for solid waste |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112108484A (en) * | 2020-08-05 | 2020-12-22 | 上海扬升生态农业有限公司 | Environment-friendly garbage treatment method for smart city |
| CN113020223A (en) * | 2021-03-26 | 2021-06-25 | 广东省科学院资源综合利用研究所 | Method for recycling urban resident domestic garbage through full-recycling comprehensive treatment |
| CN113822530A (en) * | 2021-08-19 | 2021-12-21 | 中国环境科学研究院 | Resource attribute evaluation method and system for solid waste |
| CN113822530B (en) * | 2021-08-19 | 2024-03-08 | 中国环境科学研究院 | Resource attribute evaluation method and system for solid waste |
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