CN102352380A - Food residue and sludge mixing anaerobic treatment method and system - Google Patents

Food residue and sludge mixing anaerobic treatment method and system Download PDF

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Publication number
CN102352380A
CN102352380A CN2011103115893A CN201110311589A CN102352380A CN 102352380 A CN102352380 A CN 102352380A CN 2011103115893 A CN2011103115893 A CN 2011103115893A CN 201110311589 A CN201110311589 A CN 201110311589A CN 102352380 A CN102352380 A CN 102352380A
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food garbage
anaerobic digestion
anaerobic
treatment
food residue
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董金庆
刘军
袁刚
孙举柱
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LIDA ENVIRONMENT ENGINEERING Co Ltd DALIAN
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LIDA ENVIRONMENT ENGINEERING Co Ltd DALIAN
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    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M21/00Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M27/00Means for mixing, agitating or circulating fluids in the vessel
    • C12M27/02Stirrer or mobile mixing elements
    • C12M27/06Stirrer or mobile mixing elements with horizontal or inclined stirrer shaft or axis
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M45/00Means for pre-treatment of biological substances
    • C12M45/04Phase separators; Separation of non fermentable material; Fractionation
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/40Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
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  • Bioinformatics & Cheminformatics (AREA)
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  • Treatment Of Sludge (AREA)

Abstract

The invention belongs to the technical field of food residue and municipal sludge treatment. A food residue and sludge mixing anaerobic treatment method comprises a food residue pretreatment and anaerobic digestion treatment, wherein the food residue pretreatment is that: the food residue with the grease content less than 8% is transferred to a breaking and separating unit to break and separate, and is broken until the granular is less than 30mm, and the serous liquid is obtained for spare use; and the anaerobic digestion treatment is that: the serous liquid which is obtained after the food residue pretreatment is transferred to an anaerobic digestion device, meanwhile, the sludge also enters the anaerobic digestion device, the solid content of the mixing material is 8-12%, stirring and mixing are carried out in the anaerobic digestion device, so the anaerobic digestion is carried out. The invention has the following characteristics: 1, the food residue which is not classified can be treated, the invention is in accordance with the urban food residue source classification current situation in China; 2, the food residue does not need oil-water separation, is directly mixed with sludge to enter the anaerobic digestion system, so that biodegradation is carried out for producing methane, the technological equipment is simple, and the recycling degree is high; and the heat and electricity consumption are saved, and the operation cost is low.

Description

Food garbage and mud blended anaerobic treatment method and system
Technical field
The invention belongs to food garbage and municipal sludge processing technology field.
Background technology
Food garbage is the most general refuse that produces in the daily life service of city; It is one of main source of domestic waste; Its main component is organism such as starch food, vegetable fibre, animal proteinum and fats; Have water ratio height and grease, salt content height; It is smelly to be prone to corruption, is unfavorable for characteristics such as common dumper transportation.This type rubbish is as causing great harm without classification special treatment meeting to environment.Food garbage is handled the mode that roughly is divided into mechanical disintegration, compost, biological system feed and anaerobic digestion.European Union member countries especially Germany are main with the mode of Anaerobic Digestion food garbage then, in Japan similar application are arranged also.Food garbage needs earlier through complicated classification heat pre-treatment; Remain organic matter and mix other biodegradable organic waste merging carrying out anaerobic digestion such as municipal sludge, feces of livestock and poultry after removing all kinds of impurity and oily water separation, the biogas of generation is implemented to generate electricity to surf the Net and is used as resources circulation.
Along with the quickening of Chinese Urbanization's process, urban population constantly increases in addition, and municipal effluent is also more and more, and one ton of sewage of every processing just has 0.2-0.3% mud and produces.Chinese city mud all is to look for local stacking naturally at present, land occupation, and contaminate environment, science is disposed also at the early-stage.In the sewage work that China has built up, major part does not have the auxiliary facility of sludge treatment.Even if be provided with the sewage work of digester, postdigestive mud is just just directly utilization of dehydration back also, and comparing with external advanced country still has big gap.Present water treatment is that pollutants in sewage is concentrated, transfers to the process in the mud.Owing to often contain germ and heavy metal in the mud,, usually do not cause secondary pollution through a large amount of the throwing aside of mud of harmless treatment, had a strong impact on the actual effect of environment comprehensive regulation.
The Anaerobic Digestion of mud is because its low-carbon environment-friendly produces new forms of energy again and become domestic mainstream technology at present, and this also just is that the combination treatment of other city biodegradable organic waste such as food garbage and mud is brought opportunity.Food garbage processing at present generally all is two cover systems with sludge treatment, and two independent technologies are not also directly carried out the technology and the system of combination treatment with the two at present.
Summary of the invention
The present invention has provided a kind of food garbage and municipal sludge mixing anaerobic treatment process in order to overcome the above problems, and technology is simple, and convenient processing improves processing power.The present invention also provides in addition and food garbage and municipal sludge mixing anaerobic treatment system, and system compact is handled continuously, and the resource utilization degree is high.
The present invention for realizing the technical scheme that above-mentioned purpose adopted is: a kind of food garbage and municipal sludge blended anaerobic treatment method comprise food garbage pre-treatment and Anaerobic Digestion: wherein,
The food garbage pre-treatment: food garbage carries out broken apartly through being transported to broken apart device, be crushed to below the granularity 30mm, the slurries part is subsequent use;
Anaerobic Digestion: food garbage pre-treatment gained slurries are sent into anaerobic digestion device, and mud also gets into anaerobic digestion device simultaneously, and mixture solid content 8-12% mixes in anaerobic digestion device, carries out anaerobic digestion.
The fat content of said food garbage and mud mixture material is less than 8%.
The weight ratio of said food garbage and municipal sludge is 1:3-4.
Said anaerobic digestion is stirred and is carried out the horizontal direction stirring and vertically stir the three-dimensional stirring of bonded hoop, and feed liquid mixes.
The biogas that said digestion back produces is made fuel and is used; Postdigestive food garbage and mud make nutrition soil or the fertilizer base-material uses.
Food garbage of the present invention and municipal sludge blended system for anaerobic treatment comprise food garbage preprocessing part and anaerobic digestion part;
The food garbage preprocessing part comprises food garbage storage tank, material conveyor, broken apart device, slurries storage tank, slurries lift pump; The outlet of food garbage storage tank is communicated with material conveyor; The material conveyor discharge port is communicated with broken apart device opening for feed; Broken apart device discharge port is communicated with the slurries storage tank; Slurries storage tank discharge port is communicated with the food garbage feed-pipe of anaerobic digestion device, between slurries storage tank and the food garbage feed-pipe slurries lift pump is installed;
Anaerobic digestion partly comprises sewage sludge feed pipe, food garbage feed-pipe, anaerobic digestion device, agitator, gas storage device; The sewage sludge feed pipe links to each other with anaerobic digestion device with the food garbage feed-pipe jointly, and anaerobic digestion device is equipped with agitator, and the top of anaerobic digestion device is communicated with the gas storage device.
The mass transport of said food garbage is the multiaxis helical feed, before the food garbage pre-treatment rear slurry lift pump chopping mechanism is arranged; Said agitator is installed in the bottom of anaerobic device, and the sidewall of anaerobic digestion device tank body is equipped with companion's thermic devices.
Technology of the present invention is simple; Food garbage and municipal sludge processing mixing are carried out; With raw material food garbage and municipal sludge as producing the hydrogen substrate; Food garbage and municipal sludge blending ratio can satisfy the processing of food garbage; Municipal sludge proportion in substrate is higher, has improved the treatment capacity of municipal sludge greatly.The present invention can bring up to 60-80% with the degradation effect of organic compound of admixture, so just can obtain the good treatment effect.After food garbage and municipal sludge mix, can obtain better biogas fermentation effect.The natural pond slag that food garbage and municipal sludge mixing secondary fermentation produce can be used to process biomass fertilizer, and the resource utilization degree is high, and directly as fertilizer sources returns farmland or grassland use, perhaps behind aerobic compost, processes organic fertilizer.Being mixed with of food garbage and municipal sludge is beneficial to the unfavorable factor that balance and stability digests the nutritive ingredient of medium and eliminates single material, can promote the process of anaerobic digestion.The mixed fermentative processing of food garbage and mud can effectively overcome food garbage basicity and the insufficient influence of nutrition; Can effectively overcome the high influence of food garbage fat content; Can effectively overcome the high influence of food garbage salt.The present invention is compared with prior art: have energy-conserving and environment-protective, energy utilization rate high, can develop advantage such as biomass energy; Effectively solved the difficult problem that food garbage and municipal sludge are handled; It has following characteristics: 1, can handle the food garbage without classification, meet Chinese city food garbage original-source by classification present situation; 2, food garbage is without oily water separation, and direct and mud is mixed into the anaerobic digester system biological degradation and produces biogas, and processing unit is simple, and the resource utilization degree is high; 3, anaerobic digestion device can be handled the material of high dry matter content, saves hear rate and power consumption, and running cost is low; 4, food garbage classification and heat exchanging apparatus that need not be complicated, the operation troubles rate is low and management is simple; 5, the product natural pond slag of anaerobic digestion can be suited measures to local conditions, and is of many uses.
Treatment system compact construction of the present invention, online treatment continuously, treatment capacity is big, and the working efficiency requirement of broken apart appliance ensure system improves the organism rate of recovery and also is beneficial to mass transport.Agitator is arranged on the bottom of anaerobic digestion device; The mud feed liquid of tank base is rotatablely moved along the certain orientation hoop; The feed liquid that can drive the tank body middle and upper part is simultaneously rotated along same direction; Realized that mud feed liquid overall loop stirs to reaching vertical solid; It is more even that feed liquid is mixed, and improved the container utilization ratio of anaerobic digestion device; Assisting agitating apparatus such as water-jet pump can also be equipped with simultaneously, better mixing effect can be obtained.Such overall flow helps the removing of jar intravital mud feed liquid, and guarantees mud in the intravital homogeneity of jar, more helps the mobile and digestion reaction of feed liquid in the tank body.
Description of drawings
Fig. 1 is the structural representation of food garbage of the present invention and mud blended system for anaerobic treatment.
Among the figure: food garbage storage tank 1, material conveyor 2, broken apart device 3, slurries storage tank 4, slurries lift pump 5, sewage sludge feed pipe 6, food garbage feed-pipe 7, anaerobic digestion device 8, agitator 9, companion's thermic devices 10, gas storage device 11.
Embodiment
Below in conjunction with specific embodiment the present invention is done further explain, but the present invention is not limited to specific embodiment.
Embodiment 1
Shown in Figure 1 is food garbage and mud blended system for anaerobic treatment, comprises food garbage preprocessing part and anaerobic digestion part;
The food garbage preprocessing part comprises food garbage storage tank 1, material conveyor 2, broken apart device 3, slurries storage tank 4, slurries lift pump 5; The outlet of food garbage storage tank is communicated with material conveyor; The material conveyor discharge port is communicated with broken apart device opening for feed; Broken apart device discharge port is communicated with the slurries storage tank; Slurries storage tank discharge port is communicated with the food garbage feed-pipe of anaerobic digestion device, between slurries storage tank and the food garbage feed-pipe slurries lift pump is installed;
Anaerobic digestion partly comprises sewage sludge feed pipe 6, food garbage feed-pipe 7, anaerobic digestion device 8, agitator 9, companion's thermic devices 10 and gas storage facility 11; The sewage sludge feed pipe links to each other with anaerobic digestion device with the food garbage feed-pipe jointly; Anaerobic digestion device is equipped with agitator; Agitator is installed in the bottom of anaerobic device, and the top of anaerobic digestion device is communicated with the gas storage device, and the side of anaerobic digestion device tank body is equipped with companion's thermic devices.
The separation efficiency of broken apart device 3 of the present invention is very big to the working efficiency influence of system, separates the bad direct organism rate of recovery and the mass transport of influencing.
Anaerobic digestion device 8 of the present invention can be handled the food garbage and the municipal sludge blended material of solid content 10 ~ 12%; Utilize agitator 9 and companion's thermic devices 10 to make reaction mass homogeneous, homo(io)thermism; Material is difficult for layering and has promptly eliminated greasy influence in the food garbage, makes to produce the natural pond maximizing efficiency.The present invention can use two agitators 9 to be symmetrical set; Bottom at anaerobic digestion device 8; Two agitators are worked simultaneously; The mud feed liquid of anaerobic digestion device 8 tank base is rotatablely moved along the certain orientation hoop; The feed liquid of anaerobic digestion device 8 tank base can drive the feed liquid of tank body middle and upper part simultaneously and rotate along same direction; Realized that mud feed liquid overall loop stirs to solid, it is more even that feed liquid is mixed, and improved the container utilization ratio of anaerobic digestion device 8 tank bodies; Assisting agitating apparatus such as water-jet pump can also be equipped with simultaneously, better mixing effect can be obtained.Such overall flow helps the removing of jar intravital mud feed liquid, and guarantee mud the intravital homogeneity of jar (as slaking apparatus levels temperature inequality then fermented liquid can thoroughly not have stink because of degraded).The feed liquid that makes tank base when two agitator 9 co-operation to sluggish flow, can allow water-jet pump 3 make up water in tank body according to certain directional ring simultaneously, so just more helps flowing of feed liquid in the tank body.
Embodiment 2
Adopt food garbage and the mud blended system for anaerobic treatment of embodiment 1 to handle, concrete technology comprises food garbage pre-treatment and Anaerobic Digestion:
The food garbage pre-treatment: food garbage and municipal sludge are transported to treatment plant through carrier vehicle; Fat content gets into food garbage storage tank 1 less than 8% food garbage after discharging; Opening gate valve is transported to millerator 3 with the material in the rubbish storage tank through material conveyor 2 and carries out broken apart; Be crushed to below the granularity 30mm; Impurity and food garbage are separated; Slurries after the processing partly get into slurries storage tank 4, and impurity partly gets into material slag chute car;
Anaerobic Digestion: slurries get into anaerobic digestion device 8 through slurries lift pump 5; Municipal sludge gets into anaerobic digestion device 8 through sewage sludge feed pipe 6; The weight ratio of food garbage and municipal sludge is 1:3-4; Mixture solid content 8-12%, slurries mix with municipal sludge and carry out Anaerobic Digestion.Food garbage and mud through about 22 days mesophilic digestion after, the biogas of generation is made fuel and is used; The base-material that postdigestive food garbage and mud can be done nutrition soil or fertilizer uses.

Claims (8)

1. food garbage and municipal sludge blended anaerobic treatment method comprise food garbage pre-treatment and Anaerobic Digestion, it is characterized in that: wherein,
The food garbage pre-treatment: food garbage carries out broken apartly through being transported to broken apart device, be crushed to below the granularity 30mm, the slurries part is subsequent use;
Anaerobic Digestion: food garbage pre-treatment gained slurries are sent into anaerobic digestion device, and mud also gets into anaerobic digestion device simultaneously, and mixture solid content 8-12% mixes in anaerobic digestion device, carries out anaerobic digestion.
2. food garbage according to claim 1 and municipal sludge blended anaerobic treatment method is characterized in that: the fat content of said food garbage and mud mixture material is less than 8%.
3. food garbage according to claim 1 and municipal sludge blended anaerobic treatment method is characterized in that: the weight ratio of said food garbage and municipal sludge is 1:3-4.
4. according to arbitrary described food garbage of claim 1-3 and municipal sludge blended anaerobic treatment method, it is characterized in that: said anaerobic digestion is stirred and is carried out the horizontal direction stirring and vertically stir the three-dimensional stirring of bonded hoop, and feed liquid mixes.
5. according to arbitrary described food garbage of claim 1-3 and municipal sludge blended anaerobic treatment method, it is characterized in that: the biogas that said digestion back produces is made fuel and is used; Postdigestive food garbage and mud make nutrition soil or the fertilizer base-material uses.
6. food garbage and municipal sludge blended system for anaerobic treatment is characterized in that: comprise food garbage preprocessing part and anaerobic digestion part;
The food garbage preprocessing part comprises food garbage storage tank, material conveyor, broken apart device, slurries storage tank, slurries lift pump; The outlet of food garbage storage tank is communicated with material conveyor; The material conveyor discharge port is communicated with broken apart device opening for feed; Broken apart device discharge port is communicated with the slurries storage tank; Slurries storage tank discharge port is communicated with the food garbage feed-pipe of anaerobic digestion device, between slurries storage tank and the food garbage feed-pipe slurries lift pump is installed;
Anaerobic digestion partly comprises sewage sludge feed pipe, food garbage feed-pipe, anaerobic digestion device, agitator, gas storage device; The sewage sludge feed pipe links to each other with anaerobic digestion device with the food garbage feed-pipe jointly, and anaerobic digestion device is equipped with agitator, and the top of anaerobic digestion device is communicated with the gas storage device.
7. food garbage according to claim 6 and municipal sludge blended system for anaerobic treatment is characterized in that: the mass transport of said food garbage is the multiaxis helical feed, before the food garbage pre-treatment rear slurry lift pump chopping mechanism is arranged.
8. food garbage according to claim 6 and municipal sludge blended system for anaerobic treatment, it is characterized in that: said agitator is installed in the bottom of anaerobic device, and the sidewall of anaerobic digestion device tank body is equipped with companion's thermic devices.
CN2011103115893A 2011-10-14 2011-10-14 Food residue and sludge mixing anaerobic treatment method and system Pending CN102352380A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102601098A (en) * 2012-03-08 2012-07-25 华北电力大学 Separation, recovery and comprehensive utilization process of waste oil in food waste
CN102747108A (en) * 2012-07-23 2012-10-24 潍坊金丝达环境工程股份有限公司 Method for recycling kitchen waste
CN102910782A (en) * 2012-09-28 2013-02-06 方明环保科技(漳州)有限公司 Efficient energy-saving system for sewage degradation
CN102976554A (en) * 2012-11-23 2013-03-20 中国市政工程东北设计研究总院 Pollutant comprehensive treatment system
CN104561131A (en) * 2015-01-28 2015-04-29 国药集团化学试剂有限公司 Method for preparing industrial alcohol from urban solid waste
CN104789467A (en) * 2015-04-17 2015-07-22 郑州宇通环保科技有限公司 Anaerobic-digestion treatment device for food wastes
CN104860402A (en) * 2015-04-29 2015-08-26 苏州美生环保科技有限公司 Biochemical degradation bucket
CN105294186A (en) * 2015-11-25 2016-02-03 北京中兰环境工程有限公司 Garbage treatment method and organic nutrient soil
CN105647791A (en) * 2016-03-02 2016-06-08 普利资环境科技(苏州)有限公司 Device using three-section excess sludge and straw to prepare biogas
CN105855275A (en) * 2016-06-22 2016-08-17 中国科学院城市环境研究所 Method for processing sludge and kitchen wastes
CN109399883A (en) * 2018-12-11 2019-03-01 重庆大学 A kind of method for anaerobic sludge digestion
CN110835219A (en) * 2019-11-28 2020-02-25 天津凯英科技发展股份有限公司 Synergistic method and application for anaerobic digestion of municipal sludge

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CN1569687A (en) * 2004-04-26 2005-01-26 清华大学 Anaerobic reactor for processing waste water containing high concentration suspended solid
CN101618390A (en) * 2009-07-31 2010-01-06 华中农业大学 Method for in-situ anaerobic digestion treatment of kitchen garbage
CN101921809A (en) * 2010-07-28 2010-12-22 宁波开诚生态技术有限公司 Kitchen waste disposal method
CN102080104A (en) * 2010-07-09 2011-06-01 深圳市东江环保股份有限公司 Comprehensive treatment method for preparing gas and fertilizer by utilizing kitchen waste

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CN1569687A (en) * 2004-04-26 2005-01-26 清华大学 Anaerobic reactor for processing waste water containing high concentration suspended solid
CN101618390A (en) * 2009-07-31 2010-01-06 华中农业大学 Method for in-situ anaerobic digestion treatment of kitchen garbage
CN102080104A (en) * 2010-07-09 2011-06-01 深圳市东江环保股份有限公司 Comprehensive treatment method for preparing gas and fertilizer by utilizing kitchen waste
CN101921809A (en) * 2010-07-28 2010-12-22 宁波开诚生态技术有限公司 Kitchen waste disposal method

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102601098A (en) * 2012-03-08 2012-07-25 华北电力大学 Separation, recovery and comprehensive utilization process of waste oil in food waste
CN102601098B (en) * 2012-03-08 2014-10-29 华北电力大学 Separation, recovery and comprehensive utilization process of waste oil in food waste
CN102747108A (en) * 2012-07-23 2012-10-24 潍坊金丝达环境工程股份有限公司 Method for recycling kitchen waste
CN102747108B (en) * 2012-07-23 2014-02-05 潍坊金丝达环境工程股份有限公司 Method for recycling kitchen waste
CN102910782A (en) * 2012-09-28 2013-02-06 方明环保科技(漳州)有限公司 Efficient energy-saving system for sewage degradation
CN102910782B (en) * 2012-09-28 2014-04-02 方明环保科技(漳州)有限公司 Efficient energy-saving system for sewage degradation
CN102976554A (en) * 2012-11-23 2013-03-20 中国市政工程东北设计研究总院 Pollutant comprehensive treatment system
CN104561131A (en) * 2015-01-28 2015-04-29 国药集团化学试剂有限公司 Method for preparing industrial alcohol from urban solid waste
CN104789467A (en) * 2015-04-17 2015-07-22 郑州宇通环保科技有限公司 Anaerobic-digestion treatment device for food wastes
CN104789467B (en) * 2015-04-17 2016-08-03 郑州宇通环保科技有限公司 A kind of food garbage Anaerobic Digestion device
CN104860402A (en) * 2015-04-29 2015-08-26 苏州美生环保科技有限公司 Biochemical degradation bucket
CN105294186A (en) * 2015-11-25 2016-02-03 北京中兰环境工程有限公司 Garbage treatment method and organic nutrient soil
CN105294186B (en) * 2015-11-25 2019-07-09 北京中兰环境工程有限公司 A kind of waste disposal method and organic nutrient soil
CN105647791A (en) * 2016-03-02 2016-06-08 普利资环境科技(苏州)有限公司 Device using three-section excess sludge and straw to prepare biogas
CN105647791B (en) * 2016-03-02 2018-10-09 普利资环境科技(苏州)有限公司 A kind of device preparing biogas using three sections of excess sludges and stalk
CN105855275A (en) * 2016-06-22 2016-08-17 中国科学院城市环境研究所 Method for processing sludge and kitchen wastes
CN105855275B (en) * 2016-06-22 2018-12-25 中国科学院城市环境研究所 A kind of processing method of sludge and kitchen garbage
CN109399883A (en) * 2018-12-11 2019-03-01 重庆大学 A kind of method for anaerobic sludge digestion
CN110835219A (en) * 2019-11-28 2020-02-25 天津凯英科技发展股份有限公司 Synergistic method and application for anaerobic digestion of municipal sludge

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Application publication date: 20120215