CN102059242B - Novel method for comprehensive treatment of municipal solid wastes - Google Patents

Novel method for comprehensive treatment of municipal solid wastes Download PDF

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Publication number
CN102059242B
CN102059242B CN201010515799XA CN201010515799A CN102059242B CN 102059242 B CN102059242 B CN 102059242B CN 201010515799X A CN201010515799X A CN 201010515799XA CN 201010515799 A CN201010515799 A CN 201010515799A CN 102059242 B CN102059242 B CN 102059242B
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China
Prior art keywords
wet concentration
winnowing
selection
organic matter
degradative reduction
Prior art date
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Application number
CN201010515799XA
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Chinese (zh)
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CN102059242A (en
Inventor
郭旭
王冬戈
胡永伟
仇芳
刘奇林
刘立雨
贺志文
任国芬
刘云帆
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Tianjin Dewei Environmental Engineering Equipment Co Ltd
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Tianjin Dewei Environmental Engineering Equipment Co Ltd
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Priority to CN201010515799XA priority Critical patent/CN102059242B/en
Publication of CN102059242A publication Critical patent/CN102059242A/en
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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
    • 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
    • Y02E50/10—Biofuels, e.g. bio-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
    • 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

Abstract

The invention relates to a novel method for comprehensive treatment of municipal solid wastes, comprising the following steps: separating different components in the municipal solid wastes by the procedures of preceding separation, water separation and wind separation, wherein bricks, tiles and stones are made into building materials, and plastics are granulated; and degrading and reducing organic matters and sludge, wherein the degraded organic matters are made into fertilizers or RDF. The invention fully conforms to the waste harmlessness, reduction and reclamation principle.

Description

A kind of new method of Urban Domestic Waste Comprehensive Treatment
Technical field
The invention belongs to the environmental protection field, particularly a kind of new method of Urban Domestic Waste Comprehensive Treatment.
Background technology
China's domestic waste output is huge at present, and treating capacity does not catch up with far away.The refuse landfill in present many cities overload operation, there are problems such as occupation of land is big, processing speed is slow, percolate processing difficulty in the mode disposal of refuse with landfill simultaneously.The fertilizer that composting process is processed is difficult to accepted by market because fertilizer efficiency is not good.Directly burning is the most effective decrement mode, but the domestic waste moisture content of China is higher, directly burns very difficulty, and easy generation of secondary pollution, and environment is produced very big threat.All there are many drawbacks in a certain method disposal of refuse of simple dependence.The present invention provides a kind of method of comprehensive garbage disposal, to overcome the deficiency that above technology exists.
Summary of the invention
Technical problem to be solved by this invention is: a kind of new method of Urban Domestic Waste Comprehensive Treatment is provided, to overcome the deficiency that exists on the conventional garbage treatment technology, for garbage disposal provides a kind of new way.
Technology contents of the present invention:
A kind of new method of Urban Domestic Waste Comprehensive Treatment is characterized in that: the steps include:
(1) preceding sorting
Domestic waste sorts out big part combustible through preceding sorting, makes RDF, and residue gets into the wet concentration device.
(2) wet concentration
Rubbish is after the wet concentration apparatus processes, and dregs forms mud in water, and brick and tile, stone and separating organic matters come.Mud input degraded device processes, brick and tile, stone are made building materials again through fragmentation.
(3) selection by winnowing
The organic matter that wet concentration goes out is isolated plastics and organic matter through selection by winnowing, and plastics are wherein processed plastic grain and sold, the organic degradative reduction equipment that gets into.
(4) degradative reduction
The mud input degraded equipment that organic matter that selection by winnowing is gone out and wet concentration produce; Add catalyst (sulfuric acid, hydrochloric acid, nitric acid, phosphoric acid or in controlling catalyst at least a); Feed steam, make pressure in 0.6MPa～1.5MPa, temperature in 160～200 ℃ of scopes, carry out the reaction of 1h～3h.
(5) Separation of Solid and Liquid
After degradative reduction finishes, discharge excess liquid in the degraded equipment, handle through multiple-effect evaporation.
(6) spray quick-fried discharge
Solid material sprays quick-fried discharge in the presence of certain pressure, part moisture vapors away with steam, and the material water ratio of this moment is about 40%.Through extrusion dehydration, material water ratio can be reduced to below 30% again.Through the rubbish that degradative reduction is handled, can be used for making fertilizer, also can process RDF.
Effect of the present invention: through degradative reduction, most of macromolecular substances is degraded to small-molecule substance, has destroyed the structure of original organic matter, and constitution water is wherein also separated thereupon, changes free water into, and rubbish is dewatered more easily; Behind the degradative reduction, organic matter reaches stable state, is difficult for producing foul smell, is easy to storage.
Description of drawings
Accompanying drawing 1 is the process flow chart of this technology.
The specific embodiment
The present invention relates to dewatering organic in a kind of domestic waste, combine instance that its practical implementation step is described at present.
(1) preceding sorting
Domestic waste sorts out big part combustible through preceding sorting, makes RDF, and residue gets into the wet concentration device.
(2) wet concentration
Rubbish is after the wet concentration apparatus processes, and dregs forms mud in water, and brick and tile, stone and separating organic matters come.Mud input degraded device processes, brick and tile, stone are made building materials again through fragmentation.
(3) selection by winnowing
The organic matter that wet concentration goes out is isolated plastics and organic matter through selection by winnowing, and plastics are wherein processed plastic grain and sold, the organic degradative reduction equipment that gets into.
(4) degradative reduction
The mud input degraded equipment that organic matter that selection by winnowing is gone out and wet concentration produce adds catalyst (sulfuric acid), feeds steam, make pressure in 0.6MPa, temperature at 160 ℃, carry out the reaction of 1h.
(5) Separation of Solid and Liquid
After degradative reduction finishes, discharge excess liquid in the degraded equipment, handle through multiple-effect evaporation.
(6) spray quick-fried discharge
Solid material sprays quick-fried discharge in the presence of certain pressure, part moisture vapors away with steam, and the material water ratio of this moment is about 40%.Through extrusion dehydration, material water ratio can be reduced to below 30% again.Through the rubbish that degradative reduction is handled, process RDF.
Utilize this method disposal of refuse, processing speed is fast, and the processing cycle is short, thoroughly reaches the purpose of innoxious, minimizing, resource.

Claims (1)

1. the new method of a Urban Domestic Waste Comprehensive Treatment is characterized in that:
The steps include:
(1) preceding sorting
Domestic waste sorts out big part combustible through preceding sorting, makes RDF, and residue gets into the wet concentration device;
(2) wet concentration
Rubbish is after the wet concentration apparatus processes, and dregs forms mud in water, and brick and tile, stone and separating organic matters come; Mud input degraded device processes, brick and tile, stone are made building materials again through fragmentation;
(3) selection by winnowing
The organic matter that wet concentration goes out is isolated plastics and organic matter through selection by winnowing, and plastics are wherein processed plastic grain and sold, the organic degradative reduction equipment that gets into;
(4) degradative reduction
The mud input degraded equipment that organic matter that selection by winnowing is gone out and wet concentration produce; Add catalyst: at least a in sulfuric acid, hydrochloric acid, nitric acid, the phosphoric acid; Feed steam, make pressure in 0.6MPa～1.5MPa, temperature in 160～200 ℃ of scopes, carry out the reaction of 1h～3h;
(5) Separation of Solid and Liquid
After degradative reduction finishes, discharge excess liquid in the degraded equipment, handle through multiple-effect evaporation;
(6) spray quick-fried discharge
Solid material sprays quick-fried discharge in the presence of certain pressure, part moisture vapors away with steam, and the material water ratio of this moment is about 40%; Through extrusion dehydration, material water ratio is reduced to below 30% again; Through the rubbish that degradative reduction is handled, process fertilizer or RDF.
CN201010515799XA 2010-10-22 2010-10-22 Novel method for comprehensive treatment of municipal solid wastes Active CN102059242B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010515799XA CN102059242B (en) 2010-10-22 2010-10-22 Novel method for comprehensive treatment of municipal solid wastes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010515799XA CN102059242B (en) 2010-10-22 2010-10-22 Novel method for comprehensive treatment of municipal solid wastes

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CN102059242A CN102059242A (en) 2011-05-18
CN102059242B true CN102059242B (en) 2012-08-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105175033A (en) * 2015-09-22 2015-12-23 崇州市地龙海龙生物制品开发研究所 Green garbage disposal method

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102311833A (en) * 2011-09-16 2012-01-11 天津德为环保工程设备有限公司 Method of preparing regenerated coal from municipal solid waste
CN102500598B (en) * 2011-10-27 2013-07-31 中国科学院广州能源研究所 Method and device for efficiently sorting and extracting fermentable organic matter from household garbage
CN103480632B (en) * 2013-09-24 2015-08-19 华南农业大学 A kind of Kitchen waste hydrothermal three-phase separation system
CN103934251B (en) * 2014-01-21 2017-09-15 上海程胜环保科技有限公司 A kind of method of the disposal of human lives' rubbish with recycling
CN106140778A (en) * 2015-04-08 2016-11-23 北京神州蓝天新型环保建材有限公司 Rubbish integrated process in construction site is dissolved method
CN105436194A (en) * 2015-12-25 2016-03-30 安徽继宏环保科技有限公司 Sewage purification equipment of urban domestic waste treatment system
CN106520245A (en) * 2016-11-24 2017-03-22 福建省圣新能源股份有限公司 Synthetic process and application of biomass hard material
CN107470324B (en) * 2017-08-15 2019-06-07 刘联仓 A kind of recycling municipal solid waste processing method

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CN1396142A (en) * 2002-08-27 2003-02-12 王和勋 Process for preparing composite organic fertilizer life garbage in urban area
CN1923383A (en) * 2006-09-21 2007-03-07 环大环保科技（上海）有限公司 High pressure steam catalysis hydrolysis process for treating domestic refuse
CN101804414A (en) * 2009-02-13 2010-08-18 叶毅 Method and processing system for comprehensively recycling municipal solid wastes

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JPH10330855A (en) * 1997-06-02 1998-12-15 Nisso Kinzoku Kagaku Kk Method for recovering valuable material from lithium-ion secondary battery
JP2000185269A (en) * 1998-12-22 2000-07-04 Nkk Corp Waste plastic regenerating treatment equipment

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Publication number Priority date Publication date Assignee Title
CN1396142A (en) * 2002-08-27 2003-02-12 王和勋 Process for preparing composite organic fertilizer life garbage in urban area
CN1923383A (en) * 2006-09-21 2007-03-07 环大环保科技（上海）有限公司 High pressure steam catalysis hydrolysis process for treating domestic refuse
CN101804414A (en) * 2009-02-13 2010-08-18 叶毅 Method and processing system for comprehensively recycling municipal solid wastes

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JP特开2000-185269A 2000.07.04
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105175033A (en) * 2015-09-22 2015-12-23 崇州市地龙海龙生物制品开发研究所 Green garbage disposal method

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