CN100462315C - Rubbish comprehensive processing method adapted for village and small town - Google Patents

Rubbish comprehensive processing method adapted for village and small town Download PDF

Info

Publication number
CN100462315C
CN100462315C CNB200710068139XA CN200710068139A CN100462315C CN 100462315 C CN100462315 C CN 100462315C CN B200710068139X A CNB200710068139X A CN B200710068139XA CN 200710068139 A CN200710068139 A CN 200710068139A CN 100462315 C CN100462315 C CN 100462315C
Authority
CN
China
Prior art keywords
domestic refuse
burning
biogas
marsh gas
gas
Prior art date
Application number
CNB200710068139XA
Other languages
Chinese (zh)
Other versions
CN101062825A (en
Inventor
吴伟祥
孙营军
陈英旭
郝永俊
石德智
Original Assignee
浙江大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江大学 filed Critical 浙江大学
Priority to CNB200710068139XA priority Critical patent/CN100462315C/en
Publication of CN101062825A publication Critical patent/CN101062825A/en
Application granted granted Critical
Publication of CN100462315C publication Critical patent/CN100462315C/en

Links

Classifications

    • Y02E50/343
    • Y02P20/124
    • Y02W10/23
    • Y02W30/43
    • Y02W30/47

Abstract

The invention discloses a garbage comprehensive treatment method for village, which comprises the following steps: sorting life garbage of village to perishable element, combustible constituent, reclaiming element; inorganic element; allocating the perishable element, residues of crop, animal and poultry manure and water with mass ratio at 0. 8-1. 2:0. 8-1. 2:8; proceeding anaerobic fermentation under the insulation action of burning lose heat; generating marsh gas; burning the combustible constituent with combustion-supporting marsh gas completely; getting high temperature smoke gas; recovering thermal energy through the first and second heat exchanger; maintaining the temperature of marsh gas fermenting tank; obtaining resource utilization of marsh liquid or slag, marsh gas and reclaiming component; health-filling the inorganic element and burning ash slag. This invention can prevent twice pollution of the burning smoke gas, which can increase the efficiency and output of mash gas.

Description

A kind of method for comprehensively treating rubbish that is suitable for villages and small towns

Technical field

The present invention relates to a kind of method for comprehensively treating rubbish that is suitable for villages and small towns.

Background technology

Villages and small towns rubbish mainly comprises feces of livestock and poultry, domestic refuse and crop residues three major types, and national villages and small towns domestic refuse annual production in 2005 reaches 1.2 hundred million tons according to statistics, more than 20 hundred million tons of livestock and poultry cultivation waste annual production.At present the villages and small towns domestic refuse mainly adopts and directly topples over or the processing mode of open-air landfill, rubbish appropriation of land, farmland, and it is serious that rubbish encloses phenomenon such as village.The then modes of directly burning in the open that adopt of thing such as crop residues and plastics, environmental pollutions such as flue gas are very serious more.Therefore China villages and small towns generally present present situation dirty, random, difference, have had a strong impact on the process that the new socialist countryside is built.

Burning is the effective means for the treatment of refuse with anaerobic fermentation technology.Burn and not only can realize garbage harmless, minimizing, stabilization, can also reclaim heat and realize resource utilization; And anaerobically fermenting can be converted into easily biodegradable organics biogas recovery energy substances such as methane.Both are obtaining widespread use aspect the processing municipal wastes.

Disclose a kind of quick, economic municipal living refuse comprehensive treatment method among the Chinese patent 02147673.X, it is divided into the combustiblematerials part roughly with domestic waste, inorganics part, metal part (containing battery), easily biodegradable organics part; Wherein combustible portion is sent in the incinerator that links to each other with the revolving drier inlet and is burned; Easily biodegradable organics partly utilizes burning high temperature fume to dry in revolving drier, directly does fertile or burning.This method efficiently solves that domestic waste is innoxious, the resource utilization problem, and also have following shortcoming but be used to handle complicated more villages and small towns rubbish: 1) the villages and small towns refuse thermal value is lower, and burning needs a large amount of fuel oil or combustion-supporting gas, processing cost height; 2) domestic refuse perishables, crop residues and feces of livestock and poultry etc. are rich in organism and only depend on oven dry can't guarantee that it is used as the quality of fertilizer in the rubbish of villages and small towns, and dry back directly burning then is unfavorable for resource utilization.

It is the biogas production technology of raw material with rubbish from cooking, stalk, feces of livestock and poultry and active sludge that Chinese patent 200510094483.7 discloses a kind of.By quality proportioning 1:1:1:1, and to add consumption be the kind mud of material quantity 25% to this technology with rubbish from cooking, stalk, feces of livestock and poultry, active sludge, and temperature maintenance is between 33~55 ℃, and the fermented product gas production rate can improve 25~35%.But this method is had relatively high expectations to service temperature, in the environment of villages and small towns, be difficult to realize, and wintry weather cold especially, microorganism active is suppressed, and anaerobically fermenting is difficult to reach ideal effect.

Therefore, still lack at present and be fit to the villages and small towns environment, meet that villages and small towns component of refuse kind is various, the comprehensive treating process method of disposal of character complex characteristics.

Summary of the invention

The objective of the invention is at villages and small towns environment and waste component characteristics, provide a kind of and be suitable for that population is concentrated relatively, the method for comprehensively treating rubbish in the big villages and small towns of refuse production, to realize villages and small towns garbage harmless, minimizing, resource utilization.

For reaching above-mentioned purpose, the present invention may further comprise the steps for the integrated conduct method of villages and small towns rubbish:

1) categorised collection domestic refuse, feces of livestock and poultry and crop residues sort domestic refuse, are divided into perishable composition, combustiblecomponents, recovery composition and inorganic components four classes;

2) the perishable composition of feces of livestock and poultry, crop residues and domestic refuse is put into marsh gas fermentation pool, the weight ratio of material is a feces of livestock and poultry: perishable rubbish and crop residues: moisture=0.8~1.2:0.8~1.2:8, keep the interior temperature of fermentation vat at 35~55 ℃, anaerobically fermenting is produced biogas;

3) combustiblecomponents of domestic refuse is sent into incineration plant, after heap ferment dehydration, put into incinerator,, burn the lime-ash of discharging the back and the inorganic components of domestic refuse and all send the landfill yard landfill, burn the flying dust of discharging the back and transport outward after with cement solidification with the combustion-supporting burning of biogas;

4) burn the flue gas that produces and send into dual firing chamber, combustion-supporting with biogas, burning more than 850 ℃, the flue gas that dual firing chamber discharges is removed particle through cyclonic separator, by below first heat exchanger cooling to 180 ℃, send into flue gas purification system more then, purify qualified discharge;

5) high-temperature vapour of first heat exchanger generation enters second heat exchanger, generates 30~60 ℃ middle warm water after the heat exchange cooling, in the coil pipe of input outside marsh gas fermentation pool, provides leavening temperature.

Beneficial effect of the present invention is:

1, combustiblecomponents burns innoxious, minimizing

Domestic refuse combustiblecomponents such as plastics, rubber etc. are difficult to degraded at occurring in nature, and the present invention is with the combustiblecomponents burning disposal in the domestic refuse, and reduction rate reaches more than 90%, effectively solves the villages and small towns white pollution.Yet villages and small towns domestic refuse combustiblecomponents water ratio height, calorific value is low, is difficult to reach the burning disposal temperature requirement.The present invention feeds the biogas that anaerobically fermenting produces in incinerator, dual firing chamber combustion-supporting, because of methane concentration in the biogas between 60~70%, calorific value is 20000~29000kJ/m 3, can improve the temperature in the incinerator, effectively promote waste incineration, and reduce the generation of nuisances such as Dioxins.Through smoke processing system, can further control Dioxins concentration after the high temperature incineration flue gas cooling simultaneously, make discharged gas fume reach discharging standards, realize innoxious.

2, biogas fermentation resource maximization

The perishable composition of domestic refuse, crop residues and feces of livestock and poultry all are good raw materials of producing methane through anaerobic fermentation.But it is bigger that biogas fermentation is influenced by seasonal variation, and especially the north of china in winter temperature is low, and microorganism active is suppressed in the fermentation vat, influences biogas output.The present invention mixes the back anaerobically fermenting with the three, increases fermentation substrate.And, improve microorganism active by reclaiming waste gas of incineration maintenance anaerobically fermenting pond temperature between 35~55 ℃, increase unit fermented product biogas output.The biogas that anaerobically fermenting produces is good clean energy, and it is required with the villages and small towns energy effectively to substitute the satisfied burning of fuel such as petroleum gas, coal.And in the natural pond liquid, natural pond slag because of being rich in things such as organic matter, nitrogen phosphorus, directly soil utilization, as make vegetables, fruit tree fertilizer improves land fertility, increases crop yield; Also can be applicable to culture fishery, as breed fish etc.

3, realize villages and small towns rubbish joint disposal

The present invention effectively combines anaerobically fermenting and incineration technology, has reached the purpose of villages and small towns garbage harmless such as domestic refuse, feces of livestock and poultry and crop residues, minimizing, resource utilization, improves villages and small towns living environment.

Description of drawings

Fig. 1 is a process flow sheet of the present invention.

Embodiment

With reference to Fig. 1, the method for comprehensively treating rubbish that is suitable for villages and small towns of the present invention may further comprise the steps:

1) categorised collection domestic refuse, feces of livestock and poultry and crop residues sort domestic refuse, are divided into perishable composition, combustiblecomponents, recovery composition and inorganic components four classes;

The perishable composition of above-mentioned domestic refuse has leftovers leftovers, pericarp, dish leaf etc., the combustiblecomponents of domestic refuse comprises plastics, rubber, yarn fabric, wooden unit etc., the branch that is recycled into of domestic refuse comprises electrical equipment, scrap iron, vial, Plastic Bottle, paper etc., and the inorganic components of domestic refuse comprises that stone, silt, glass cullet, bulk animal bone are first-class.

The recovery composition of domestic refuse is sold waste recovery company, but refuse reclamation has certain economic value.

2) the perishable composition of feces of livestock and poultry, crop residues and domestic refuse is put into marsh gas fermentation pool, the weight ratio of material is a feces of livestock and poultry: perishable rubbish and crop residues: moisture=0.8~1.2:0.8~1.2:8, keep the interior temperature of fermentation vat at 35~55 ℃, anaerobically fermenting is produced biogas;

Generally, add feces of livestock and poultry and perishable rubbish to marsh gas fermentation pool every day, added a crop residues every 5~10 days to marsh gas fermentation pool.

Anaerobically fermenting is provided with coil pipe outside the pond, feeds the middle warm water that is produced by the incineration flue gas heat exchange in the coil pipe, and warm water can be kept temperature in the fermentation vat in the utilization, improves microorganism active.In fermentation vat, add simultaneously paddle stirrer, open once every other day, stir material and prevent the local acidifying that takes place.After the biogas that fermentation produces is collected with air collector, import incinerator and dual firing chamber's raising incineration temperature by pipeline; Rest part is by the pressurized liquefied tanks of packing into, as domestic fuel; Liquid natural pond, natural pond slag can directly mix agricultural, or the process precipitation is with solid-liquid separation in container, and solid-liquid separately utilizes.

3) combustiblecomponents of domestic refuse is sent into incineration plant, after heap ferment dehydration, put into incinerator,, burn the lime-ash of discharging the back and the inorganic components of domestic refuse and all send the landfill yard landfill, burn the flying dust of discharging the back and transport outward after with cement solidification with the combustion-supporting burning of biogas;

4) burn the flue gas that produces and send into dual firing chamber, combustion-supporting with biogas, burning more than 850 ℃, the flue gas that dual firing chamber discharges is removed particle through cyclonic separator, by below first heat exchanger cooling to 180 ℃, send into flue gas purification system more then, purify qualified discharge;

Usually, adopt high pressure blower that biogas is blasted dual firing chamber, to increase the turbulivity of gas in the dual firing chamber, the control residence time of high-temperature flue gas in dual firing chamber reduced nuisance generations such as Dioxins greater than 2 seconds.Utilize first heat exchanger that high-temperature flue gas is cooled to rapidly below 180 ℃, can prevent that Dioxins from regrouping; Flue gas removes device adsorption filtrations such as acid tower, sack cleaner, gac dedusting by dry type desulfurizing, make flue gas be purified qualified discharge.

5) high-temperature vapour of first heat exchanger generation enters second heat exchanger, generates 30~60 ℃ middle warm water after the heat exchange cooling, in the coil pipe of input outside marsh gas fermentation pool, provides leavening temperature.

The high-temperature steam that first heat exchanger comes out enters second heat exchanger, utilizes the heat in the water coolant absorption steam, generates 30~60 ℃ middle warm water.In warm water enter the coil pipe anaerobically fermenting pond outside by pipeline, the interior material of heating bath.And cooled steam reforming is a liquid water, is back to first heat exchanger, continues on for the cooling down high-temperature flue gas.

Claims (2)

1. method for comprehensively treating rubbish that is suitable for villages and small towns may further comprise the steps:
1) categorised collection domestic refuse, feces of livestock and poultry and crop residues sort domestic refuse, are divided into perishable composition, combustiblecomponents, recovery composition and inorganic components four classes;
2) the perishable composition of feces of livestock and poultry, crop residues and domestic refuse is put into marsh gas fermentation pool, the weight ratio of material is a feces of livestock and poultry: the perishable composition and the crop residues of domestic refuse: moisture=0.8~1.2:0.8~1.2:8, keep the interior temperature of marsh gas fermentation pool at 35~55 ℃, anaerobically fermenting is produced biogas;
3) combustiblecomponents of domestic refuse is sent into incineration plant, after heap ferment dehydration, put into incinerator,, burn the lime-ash of discharging the back and the inorganic components of domestic refuse and all send the landfill yard landfill, burn the flying dust of discharging the back and transport outward after with cement solidification with the combustion-supporting burning of biogas;
4) burn the flue gas that produces and send into dual firing chamber, combustion-supporting with biogas, burning more than 850 ℃, the flue gas that dual firing chamber discharges is removed particle through cyclonic separator, by below first heat exchanger cooling to 180 ℃, send into flue gas purification system more then, purify qualified discharge;
5) high-temperature vapour of first heat exchanger generation enters second heat exchanger, generates 30~60 ℃ middle warm water after the heat exchange cooling, in the coil pipe of input outside marsh gas fermentation pool, provides leavening temperature.
2. method for comprehensively treating rubbish according to claim 1 is characterized in that the combustion-supporting biogas of dual firing chamber blasts with gas blower.
CNB200710068139XA 2007-04-19 2007-04-19 Rubbish comprehensive processing method adapted for village and small town CN100462315C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB200710068139XA CN100462315C (en) 2007-04-19 2007-04-19 Rubbish comprehensive processing method adapted for village and small town

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB200710068139XA CN100462315C (en) 2007-04-19 2007-04-19 Rubbish comprehensive processing method adapted for village and small town

Publications (2)

Publication Number Publication Date
CN101062825A CN101062825A (en) 2007-10-31
CN100462315C true CN100462315C (en) 2009-02-18

Family

ID=38964146

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB200710068139XA CN100462315C (en) 2007-04-19 2007-04-19 Rubbish comprehensive processing method adapted for village and small town

Country Status (1)

Country Link
CN (1) CN100462315C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101538109B (en) * 2009-04-23 2010-11-10 北京科技大学 Anaerobic fermentation technical method of septic tank sediments by assist of industrial waste heat
CN101830744B (en) * 2010-05-18 2012-12-05 中国科学院广州能源研究所 Method for simultaneously producing electric fertilizer by mixing and continuous dry fermentation of raw materials with complementary characteristics
CN102162000A (en) * 2010-12-10 2011-08-24 刘达苏 Method and device for applying methane to industrial hating furnace
CN102175026B (en) * 2010-12-23 2012-12-26 广州市昕旺环保科技有限公司 Garbage burning pretreatment process
CN102052685B (en) * 2011-01-09 2012-07-04 张英华 Incinerator for processing smoke gas generated by waste incineration by utilizing incineration method
CN102374543A (en) * 2011-08-08 2012-03-14 南京大学 Anaerobic fermentation-incineration combined treatment method for organic wastes
CN102921711B (en) * 2012-07-17 2015-06-17 上海环垦生态科技有限公司 Organic solid waste regeneration resource treatment method and apparatus system thereof
CN103708613B (en) * 2013-12-20 2015-06-10 中国联合工程公司 System and method for recycling toilet flushing sewage energy through industrial circulating water afterheat
CN104654312B (en) * 2015-02-27 2017-03-01 四川欣源绿环保科技有限公司 A kind of nonflame burning process of solid waste
CN105130526A (en) * 2015-08-05 2015-12-09 刘航远 Agricultural waste fertilizer production machine
CN105645694B (en) * 2016-03-22 2019-07-05 中冶南方工程技术有限公司 A kind of community's debirs treatment in situ system and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1416972A (en) * 2002-10-11 2003-05-14 韩洪波 Fast and economic comprehensive city domestic refuse treating method
CN1502421A (en) * 2002-11-23 2004-06-09 伟 才 Environment protective method for systemacally treating urban domestic refuse
JP2004195308A (en) * 2002-12-17 2004-07-15 Taisei Corp Pretreatment method for organic residue in methane fermentation system
CN1730175A (en) * 2005-08-01 2006-02-08 四川海诺尔环保产业投资有限公司 Domestic refuse comprehensive treatment method
CN1769220A (en) * 2005-09-19 2006-05-10 江南大学 Marsh gas production technology using kitchen residue, straw, stock and fowl dejecta and active mud as material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1416972A (en) * 2002-10-11 2003-05-14 韩洪波 Fast and economic comprehensive city domestic refuse treating method
CN1502421A (en) * 2002-11-23 2004-06-09 伟 才 Environment protective method for systemacally treating urban domestic refuse
JP2004195308A (en) * 2002-12-17 2004-07-15 Taisei Corp Pretreatment method for organic residue in methane fermentation system
CN1730175A (en) * 2005-08-01 2006-02-08 四川海诺尔环保产业投资有限公司 Domestic refuse comprehensive treatment method
CN1769220A (en) * 2005-09-19 2006-05-10 江南大学 Marsh gas production technology using kitchen residue, straw, stock and fowl dejecta and active mud as material

Also Published As

Publication number Publication date
CN101062825A (en) 2007-10-31

Similar Documents

Publication Publication Date Title
Pham et al. Food waste-to-energy conversion technologies: Current status and future directions
Raheem et al. Opportunities and challenges in sustainable treatment and resource reuse of sewage sludge: a review
Jouhara et al. Municipal waste management systems for domestic use
Matsakas et al. Green conversion of municipal solid wastes into fuels and chemicals
Abbasi et al. Biogas energy
Gumisiriza et al. Biomass waste-to-energy valorisation technologies: a review case for banana processing in Uganda
ES2706007T3 (en) Removal of water from slurry and conversion of biosolids to a renewable fuel
CN102327888B (en) Municipal domestic waste resource recovery processing method with zero pollution, zero release and harmlessness
CN103381420B (en) Device and method for sewage collaborative reutilization comprehensive treatment
CN101352721B (en) Method for sequentially processing consumer waste
US20120208254A1 (en) Biorefinery system, components therefor, methods of use, and products derived therefrom
Demirbas Waste management, waste resource facilities and waste conversion processes
CN101314163B (en) Reclamation processing method for poor garbage
CN101708938B (en) Sludge or organic garbage high-low temperature coupling themolysis method
CN101746941B (en) Biological drying method for treating dewatered sludge of urban sewage plant
CN101433904B (en) Processing technique for energy sources regeneration of urban domestic garbage and non-waste comprehensive utilization
Leung et al. An overview on biogas generation from anaerobic digestion of food waste
US20130026760A1 (en) Method for treating organic waste and method and apparatus for producing solid fuel/compost using zero discharge ace system
CN103343026B (en) Process method and process system for preparing solid fuel through biomass and sludge
CN1178757C (en) Fast and economic comprehensive city domestic refuse treating method
CN104817357B (en) A kind of large organic waste pollutant source comprehensive treatment system in rural area and method
CN101618392B (en) Technological method of comprehensive utilization of separation and pyrolysis treatment of garbage
CN1180896C (en) High-effective environment-protecting harmless refuse treatment method
CN203330098U (en) Harmless treatment and comprehensive utilization system of urban and rural solid waste
EP2650273B1 (en) Resource utilizing method of refuses in urban and rural

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090218

Termination date: 20130419