CN102374543A - Anaerobic fermentation-incineration combined treatment method for organic wastes - Google Patents
Anaerobic fermentation-incineration combined treatment method for organic wastes Download PDFInfo
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- CN102374543A CN102374543A CN2011102249640A CN201110224964A CN102374543A CN 102374543 A CN102374543 A CN 102374543A CN 2011102249640 A CN2011102249640 A CN 2011102249640A CN 201110224964 A CN201110224964 A CN 201110224964A CN 102374543 A CN102374543 A CN 102374543A
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- anaerobic fermentation
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- slag
- dryer
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- 239000010815 organic waste Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000011282 treatment Methods 0.000 title claims abstract description 12
- 238000000855 fermentation Methods 0.000 claims abstract description 36
- 239000002893 slag Substances 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 230000004151 fermentation Effects 0.000 claims abstract description 13
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 10
- 239000000446 fuel Substances 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003546 flue gas Substances 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 239000010865 sewage Substances 0.000 claims abstract description 4
- 239000002918 waste heat Substances 0.000 claims abstract description 4
- 238000011284 combination treatment Methods 0.000 claims description 9
- 238000004513 sizing Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 239000010794 food waste Substances 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000005587 bubbling Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000003134 recirculating effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 24
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 238000003672 processing method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- 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
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/12—Bioreactors or fermenters specially adapted for specific uses for producing fuels or solvents
-
- 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
- C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
- C12M47/14—Drying
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Zoology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Wood Science & Technology (AREA)
- Genetics & Genomics (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Microbiology (AREA)
- Sustainable Development (AREA)
- Biomedical Technology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses an anaerobic fermentation-incineration combined treatment method for organic wastes. The anaerobic fermentation-incineration combined treatment method is characterized by comprising the following steps of: firstly, crushing the organic wastes, feeding the crushed organic wastes into a slurry mixing pool to be mixed with water or a methane solution to form a fermentation raw material, and feeding the fermentation raw material into an anaerobic fermentation tank for anaerobic fermentation treatment; secondly, performing solid-liquid separation treatment on residual slurry to form the methane solution and dehydrated methane slag; thirdly, making partial methane solution flow back to the slurry mixing pool, discharging surplus methane solution outwards to a sewage treatment facility; fourthly, feeding the dehydrated methane slag into a methane slag drying machine by taking methane generated by the anaerobic fermentation tank as fuel for heating, wherein the moisture content of the dried methane slag is made lower than 40%; fifthly, incinerating the dried methane slag subjected to drying treatment by using the methane collected from the anaerobic fermentation tank as auxiliary fuel for methane slag combustion; and sixthly, producing steam or hot water by a waste heat boiler by using high-temperature flue gas discharged from a methane slag incineration furnace, and supplying the steam or the hot water to the fermentation tank to serve as a hot source for heating or heat insulating. According to the invention, the anaerobic fermentation and the incineration treatment are organically combined, the advantages of the anaerobic fermentation and the incineration treatment are fully exerted, and the reduction, harmlessness and the recycling of rubbish are facilitated.
Description
Technical field
The present invention relates to a kind of waste disposal method, especially a kind of processing method of organic waste, specifically a kind of anaerobic fermentation-burning combination treatment method of organic waste.
Background technology
At present; With garbage, changing food waste, municipal sludge, market of farm produce rubbish, fowl and animal excrement is the organic waste of representative; Along with urban development, population increase; Its output rate of climb is very fast, how expeditiously these organic wastes to be carried out " minimizing, innoxious, resource " and handles, and becomes the common problem of paying close attention to of society.
For organic waste, adopt anaerobic fermentation can produce biogas, carry out energy and recycle, but the volume reduction rate of solid matter is not high, if the natural pond slag can not utilize, also can produce corresponding post processing problem.Adopt burning method can farthest realize the minimizing processing requirements of discarded object, but often moisture content is higher owing to organic waste, gives directly to burn and bring difficulty.
And be to adopt fermentation separately or the method for burning is carried out for the processing method commonly used of organic waste at present; These two kinds of methods respectively have pluses and minuses; Limit by technology institute, present do not have still that a kind of ability will be fermented and to burn the processing method of bringing into play the two advantage of combining available.
Summary of the invention
The objective of the invention is to invent a kind of anaerobic fermentation-burning combination treatment method of organic waste to the high-leveled and difficult problem of existing organic waste moisture content with direct burning.
Technical scheme of the present invention is:
A kind of anaerobic fermentation-burning combination treatment method of organic waste is characterized in that it may further comprise the steps:
At first, organic waste is carried out break process, its particle diameter is crushed to below the 30mm, get into size mixing Chi Yushui or natural pond liquid mixing formation fermentation raw material, get into anaerobic fermentation tank and carry out the anaerobic fermentation processing, and collect the biogas that is produced;
Secondly, the remaining slurry after the fermentation process that will be discharged by anaerobic fermentation tank is sent into plate and frame filter press and/or spiral centrifugal dehydrator and is carried out Separation of Solid and Liquid and handle, and forms the natural pond liquid and the natural pond slag that dewaters;
The 3rd, to control required natural pond liquid according to the natural pond liquid demand in the pond of sizing mixing and be back to the pond of sizing mixing, remainder drains into sewage treatment facility outward;
The 4th, make dehydration natural pond slag get into natural pond slag dryer, use fuel with the biogas that produces from anaerobic fermentation tank as heating; Can outside dryer, adopt the biogas hot-air stove to generate the hot air source that dryer is used; Also can biogas burner be set on dryer, in dryer, directly form hot air source, according to the difference of natural pond slag moisture content; Automatically regulate drying time and thermal source quantity delivered, make natural pond slag moisture content after the oven dry less than 40%;
The 5th, get into the incinerator burning through the mummification natural pond slag of drying after handling, burn as the natural pond slag with the biogas of collecting from anaerobic fermentation tank and use auxiliary fuel; When natural pond slag calorific value is on the low side, replenish the biogas amount in the incinerator automatically, to guarantee that ignition temperature is greater than more than 800 ℃;
The 6th, the high-temperature flue gas that natural pond slag incinerator is discharged adopts waste heat boiler to produce steam or hot water, supplies with fermentation tank as heating or insulation thermal source.
Described organic waste is one or more the combination in garbage, changing food waste, municipal sludge, market of farm produce rubbish and the fowl and animal excrement.
Described dryer is a roller dryer.
Described incinerator is recirculating fluidized bed, bubbling fluidized bed or grate incinerator.
Beneficial effect of the present invention:
The present invention has carried out organic combination with anaerobic fermentation and burning disposal, has given full play to advantage separately, can realize the processing target of " minimizing, innoxious, the resource " of rubbish better.
The present invention can realize that multipurpose is recycled and exploitation.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
As shown in Figure 1.
A kind of anaerobic fermentation-burning combination treatment method of organic waste, it may further comprise the steps:
1. at first organic waste (is comprised that garbage, changing food waste, municipal sludge, market of farm produce rubbish, fowl and animal excrement etc. are the discarded object of key component with the labile organic compound; It can be the one-component in same source; Also can be the mixture of separate sources) carry out break process; Its particle diameter is crushed to below the 30mm, gets into size mixing Chi Yushui or natural pond liquid mixing formation fermentation raw material, get into anaerobic fermentation tank and carry out the anaerobic fermentation processing; Produce biogas, so that fuel is provided for follow-up dryer and incinerator; The biogas that produces can be collected, and also can make it be stored in the top of fermentation tank automatically;
2. the remaining slurry of anaerobic fermentation tank being discharged is sent into conventional equipment Separation of Solid and Liquid such as plate and frame filter press, spiral centrifugal dehydrator and is handled, and forms natural pond liquid and dehydration natural pond slag.
3. according to the demand of natural pond liquid in the pond of sizing mixing, control required natural pond liquid and be back to the pond of sizing mixing, simultaneously unnecessary slurries are drained into sewage treatment facility outward and handle the back discharge;
4. make dehydration natural pond slag get into natural pond slag dryer; Dryer can adopt roller dryer; Can use from the biogas of anaerobic fermentation tank generation and use fuel as heating; Can outside dryer, adopt the biogas hot-air stove to generate the hot air source that dryer is used, also can biogas burner be set on dryer, in dryer, directly form hot air source.According to the difference of natural pond slag moisture content, regulate drying time and thermal source quantity delivered automatically, make natural pond slag moisture content after the oven dry less than 40%;
5. through drying the mummification natural pond slag after handling; The burning of entering incinerator; Incinerator can be forms such as recirculating fluidized bed, bubbling fluidized bed, grate incinerator, burns as the natural pond slag with the biogas that produces from anaerobic fermentation tank and uses auxiliary fuel, when natural pond slag calorific value is on the low side; Automatically replenish the biogas amount in the incinerator, to guarantee that ignition temperature is greater than more than 800 ℃; ,
6. the high-temperature flue gas of natural pond slag incinerator discharge adopts waste heat boiler to produce steam or hot water, and the supply fermentation tank can be used as building materials use or direct landfill disposal as heating or being incubated thermal source and burn the slag that produces.
Whole process flow is as shown in Figure 1.
The present invention does not relate to all identical with the prior art prior art that maybe can adopt of part and realizes.
Claims (4)
1. anaerobic fermentation-the burning combination treatment method of an organic waste is characterized in that it may further comprise the steps:
At first, organic waste is carried out break process, its particle diameter is crushed to below the 30mm, get into size mixing Chi Yushui or natural pond liquid mixing formation fermentation raw material, get into anaerobic fermentation tank and carry out the anaerobic fermentation processing, and collect the biogas that is produced;
Secondly, the remaining slurry after the fermentation process that will be discharged by anaerobic fermentation tank is sent into plate and frame filter press and/or spiral centrifugal dehydrator and is carried out Separation of Solid and Liquid and handle, and forms the natural pond liquid and the natural pond slag that dewaters;
The 3rd, to control required natural pond liquid according to the natural pond liquid demand in the pond of sizing mixing and be back to the pond of sizing mixing, remainder drains into sewage treatment facility outward;
The 4th, make dehydration natural pond slag get into natural pond slag dryer, use fuel with the biogas that produces from anaerobic fermentation tank as heating; Can outside dryer, adopt the biogas hot-air stove to generate the hot air source that dryer is used; Also can biogas burner be set on dryer, in dryer, directly form hot air source, according to the difference of natural pond slag moisture content; Automatically regulate drying time and thermal source quantity delivered, make natural pond slag moisture content after the oven dry less than 40%;
The 5th, get into the incinerator burning through the mummification natural pond slag of drying after handling, burn as the natural pond slag with the biogas of collecting from anaerobic fermentation tank and use auxiliary fuel; When natural pond slag calorific value is on the low side, replenish the biogas amount in the incinerator automatically, to guarantee that ignition temperature is greater than more than 800 ℃;
The 6th, the high-temperature flue gas that natural pond slag incinerator is discharged adopts waste heat boiler to produce steam or hot water, supplies with fermentation tank as heating or insulation thermal source.
2. anaerobic fermentation-the burning combination treatment method of organic waste according to claim 1 is characterized in that described organic waste is one or more the combination in garbage, changing food waste, municipal sludge, market of farm produce rubbish and the fowl and animal excrement.
3. anaerobic fermentation-the burning combination treatment method of organic waste according to claim 1 is characterized in that described dryer is a roller dryer.
4. anaerobic fermentation-the burning combination treatment method of organic waste according to claim 1 is characterized in that described incinerator is recirculating fluidized bed, bubbling fluidized bed or grate incinerator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102249640A CN102374543A (en) | 2011-08-08 | 2011-08-08 | Anaerobic fermentation-incineration combined treatment method for organic wastes |
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| CN2011102249640A CN102374543A (en) | 2011-08-08 | 2011-08-08 | Anaerobic fermentation-incineration combined treatment method for organic wastes |
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Cited By (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100548A (en) * | 2012-11-12 | 2013-05-15 | 黄陈超 | Rapid fermentation technology of organic garbage |
| CN103103111A (en) * | 2012-11-12 | 2013-05-15 | 黄陈超 | Hot air radiating device of fermentation tank |
| CN103103112A (en) * | 2012-11-12 | 2013-05-15 | 黄陈超 | Organic rubbish fermentation tank |
| CN103361260A (en) * | 2013-07-03 | 2013-10-23 | 沈阳航空航天大学 | Cow dung high-solid anaerobic digestion and pyrolysis treatment integrated system |
| CN103691731A (en) * | 2013-12-26 | 2014-04-02 | 北京中科通用能源环保有限责任公司 | Kitchen waste disposal system |
| CN103952292A (en) * | 2014-05-21 | 2014-07-30 | 杨合长 | Preparation system of renewable energy sources |
| CN104030538A (en) * | 2013-03-07 | 2014-09-10 | 周海云 | Comprehensive biogas utilization system |
| CN104084417A (en) * | 2014-07-16 | 2014-10-08 | 浙江华川实业集团有限公司 | Waste incineration and sewage treatment integrated process for paper mill |
| CN104150732A (en) * | 2014-08-29 | 2014-11-19 | 凤阳海泰科能源环境管理服务有限公司 | Two-stage sludge drying system |
| CN104150726A (en) * | 2014-07-25 | 2014-11-19 | 中国环境科学研究院 | Reducing sludge treatment device and sludge drying method |
| CN104193124A (en) * | 2014-07-25 | 2014-12-10 | 李英军 | Combined device for sewage-sludge decentralized processing |
| CN104276737A (en) * | 2014-10-13 | 2015-01-14 | 南京国能环保工程有限公司 | Energy source output type sewage sludge treatment method |
| CN105297830A (en) * | 2015-10-30 | 2016-02-03 | 重庆光煦科技有限公司 | Community domestic wastewater and waste circulating energy supply system |
| CN105861287A (en) * | 2016-06-22 | 2016-08-17 | 南通天蓝环保能源成套设备有限公司 | Kitchen waste efficient wet anaerobic digestion treatment system |
| CN106077022A (en) * | 2016-06-14 | 2016-11-09 | 深圳市朗坤环保股份有限公司 | Kitchen is remaining, market of farm produce garbage as resource processing system and technological process thereof |
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