CN104973744A - Bio-organic fertilizer preparation through extraction of biogas with slurry and then fermentation - Google Patents

Bio-organic fertilizer preparation through extraction of biogas with slurry and then fermentation Download PDF

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Publication number
CN104973744A
CN104973744A CN201410152660.1A CN201410152660A CN104973744A CN 104973744 A CN104973744 A CN 104973744A CN 201410152660 A CN201410152660 A CN 201410152660A CN 104973744 A CN104973744 A CN 104973744A
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China
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mud
biogas
organic fertilizer
fermentation
technology
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CN201410152660.1A
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Chinese (zh)
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王义生
陈小龙
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大冶市三禾生物环保肥料有限公司
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Priority to CN201410152660.1A priority Critical patent/CN104973744A/en
Publication of CN104973744A publication Critical patent/CN104973744A/en

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    • 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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • 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
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/20Sludge processing
    • 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
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy
    • 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

Abstract

The invention relates to the technical field of organic waste recycling and bio-fermentation and discloses bio-organic fertilizer preparation through extraction of biogas with slurry and then fermentation. The preparation includes the following steps: a) through a medium-temperature two-stage anaerobic digestion technology, feeding sludge and other organic wastes into a primary digestion tank according to a gas making and dewatering formula to extract majority of biogas and then continuously extracting the rest of the biogas in a secondary digestion tank; b) when the digestion reaction is finished, pumping the biogas slurry into a slope-type gravity automatic dewatering and sludge storing tank to automatically filter a part of water; and c) feeding the biogas slurry at the bottom of the tank into a stirrer, adding a dry powder material and bacteria strains according to a fertilizer making formula, stirring uniformly the mixture, feeding the mixture into a fermentation room and stacking the mixture into a windrow-like structure; d) with a windrow-type dynamic high-temperature fermentation technology, performing fermentation through a starting step, a high-temperature fermentation step and a post-treatment step to obtain a slurry material; and e) crushing and sieving the fermented slurry material to produce the organic fertilizer which is in conformity with national standard. The organic fertilizer can be applied in agriculture, forestry and aquatic product breeding industry.

Description

Biogas ferment making bio-organic fertilizer is more first extracted with mud
(1) technical field: the improvement opportunity that the present invention relates to reclaiming organic waste utilization and bio-fermentation process first extracts biogas ferment making bio-organic fertilizer again for the one mud in agricultural and aquatic products crop cultivation and aquaculture.
(2) background technology: the mud produced by urban wastewater treatment firm is at present disposed, mainly takes anaerobic digestion to extract biogas or aerobic fermentation produces these two kinds of technology of fertilizer.The technical matters flow process of anaerobic digestion is: mud, after agitated pool is sized mixing, is sent heat exchanger to slush pump and heated, then deliver to anaerobic digester, by the organic matter degradation in mud under anaerobion effect, discharges biogas; Cripple makes mud cake after mechanical dehydration, carries out burning or landfill, on a small quantity for the base fertilizer of forest flower.Major objective because of this technology is the minimizing, the stabilization that realize mud, and mud leavening temperature in the process of anaerobic digestion is lower, and the micro heavy in mud and poisonous and harmful thalline can not effectively be eliminated, therefore agricultural use is restricted.In order to reach, sludge disposal is innoxious, the target of recycling, aerobic fermentation is mostly taked to produce the technology of organic fertilizer, its technical process is: first carry out mechanical dehydration to mud, add other material and fermented bacterium again, after carrying out the adjustment mixing of the index such as water ratio and organic matter, deliver to have heating, insulation and forced ventilation facility proving room stack fermentation, organism in mud is degraded by its bacterial classification, produces high temperature and kills poisonous and harmful thalline and transpiring moisture: be made into organic fertilizer through operations such as pulverizing, screenings again; This technology effectively can not utilize the bioenergy in mud, can discharge a small amount of foul smell in fermenting process, and coal, electric equal energy source consumption and production cost are higher.
(3) summary of the invention: the object of the invention is to solve in existing sludge disposal and application technology as the second resource, only adopt single anaerobic digestion or aerobic fermentation technology, cause harmless treatment not thorough, bioenergy utilizes insufficient, the problems such as energy consumption is higher, and provide one mud first to extract biogas ferment making bio-organic fertilizer again.
Technical project thought of the present invention is: improve the disposal technology to city sludge and other organic waste; protect and improve the ecological environment; reclaim and fully utilize the energy in mud and other organic waste and resource to greatest extent, to save energy and reduce the cost and to develop a circular economy as the target of research of technique.By anaerobic digestion and these two kinds of technology of aerobic fermentation, get up to make organic fertilizer with slope formula gravity automatic dehydration combine with technique, thus realize the bumper harvests of economic benefit and social benefit.
Concrete scheme of the present invention is: first extract biogas ferment making bio-organic fertilizer again with mud.Comprise employing anaerobic digestion techniques, first extract the bioenergy (biogas) in the organic wastes such as mud, be beneficial to cripple dehydration by the hydrolytic action in anaerobic digestion process simultaneously; Adopt automatic dehydration technology again, the water ratio of cripple is down to less than 70% automatically; Then adopt aerobic fermentation technology, through technical process such as pre-treatment, thermophilic fermentation and aftertreatments, mud and other organic waste are made into bio-organic fertilizer the most at last.It is characterized in that: described the organic waste such as urban life mud, animal excrement and rice hulls to be mixed by qi exhaustion water formula processed, add water by weight and amendment in agitated pool, stir into the mud of water ratio about 93%, being pumped into heat exchanger makes mud temperature be raised to about 50 degree, then sends into first step anaerobic digester; Through 12-16 days, extract most of biogas; Then mud is put into second stage digester and proceeds anaerobic digestion reaction, extract remaining biogas; After anaerobically fermenting terminates, the cripple at the bottom of secondary digester pond is extracted into slope formula gravity automatic dehydration and deposits in mud groove and deposit.Cripple from gravity and long-time continuous extruding under, in bottom land cripple, the moisture of more than 1/4 is by automatic-extrusion, and the natural pond water extruded is extracted into agitated pool again and recycles; To the moisture cripple of about about 70%, the dry mash such as cotton seed ash, flyash can be mixed again by composting formula, in stirrer, add bacterial classification and mud, expect to stir evenly, send into proving room heap slivering buttress; Through 3-5 days, heap temperature can be raised to more than 55 degree automatically, now at least stirs once every day with tripper; Because the heat of aerobic reaction release forms high temperature, the poisonous and harmful thalline in cripple and other material effectively can be killed, transpiring moisture; Through the high-temperature aerobic fermentation of 7-10 days, then display 5-7 days, windrow can be transported, carry out drying, pulverize, sieve, powder packaging is become bio-organic fertilizer.
The present invention is compared with the technology of alone anaerobic digestion disposing sludge, and the material that the present invention drops into digester is different, and different to the dewatering type going out pond mud, the result that cripple is disposed is also different.The material that the present invention drops into digester is not mud, also comprise high organic waste material and loose drainage organic waste materials, be conducive to improving factor of created gase and cripple dehydration: adopt slope formula gravity automatic dehydration technology again, utilize to deposit in mud groove deposit own wt and the difference of altitude of mud, automatically the water in bottom land cripple is squeezed out a part; The material that the latter drops into digester only has mud, and gas production rate is lower, and cripple dewatering is poor; Its dewatering type can only adopt mechanical presses, adds energy consumption.In addition, the present invention using cripple as a kind of work in-process resource, kill poisonous and harmful thalline further by high-temperature aerobic fermentation, also other waste materials a large amount of be neutralized micro heavy remnants because having dropped into, passivation, dilution, can be made into the bio-organic fertilizer meeting national standard; The latter only has 35 degree because the leavening temperature of mud is the highest, and be difficult to kill poisonous and harmful thalline, heavy metal remnants exceed standard and also cannot solve, innoxious can not be up to standard, great majority can only be made mud cake and burn or landfill, and recycling is insufficient.
Mud is made compared with the technology of organic fertilizer by the present invention and alone high-temperature aerobic fermentation, first mud and other moisture content are dropped into digester with organic higher waste and carry out anaerobic digestion by the present invention, both extracted to greatest extent and make use of bioenergy, also decrease as far as possible and discharge harmful hydrogen sulfide and ammonia polluted air when thermophilic fermentation: the colloidal structure being destroyed again water molecules in mud by anaerobic digestion, about easily making to deposit the cripple automatic dehydration to 70% in mud groove; Add certain dry mash and bacterial classification just can send into proving room and carry out direct fermentation; Even if in the winter time, because temperature more than cripple is still at about 10 degree, so proving room does not need heat supply to heat or forced ventilation oxygen supply yet during winter, only need extend 2-3 days than summer can enter the thermophilic fermentation stage.The latter, before sludge fermentation, must carry out mechanical dehydration, adds artificial and power consumption; In the winter time because mud temperature is low, must install heating and thermal insulation and forced ventilation system, otherwise bacterial classification cannot activate at proving room, fermentation cannot be carried out; Investment and the operation expense of coal, electric energy consumption and heating equipment system are higher.Therefore, the present invention is not only extracted a large amount of clean biometric energy from sludge disposal, also saves mass energy, equipment and manual maintenance running cost in process of production.
To in the disposal of mud or application technology as the second resource, in anaerobic digestion, have minority to adopt thermophilic digestion technology, be characterized in that organic matter decomposition is very fast, factor of created gase is higher, and mud is shorter in the digester residence time; But need digester heating and thermal insulation, energy consumption is higher, and system stability is poor.Also have warm one-level anaerobic digestion techniques technique in employing, be characterized in that digestion rate is comparatively slow, require that the capacity of single digester is comparatively large, insulation energy consumption is higher.The result of these two kinds of technical matters, all can only reach minimizing and the stabilization of sludge disposal, cannot realize agricultural use.In aerobic fermentation, there is minority to adopt static aerobic fermentation technology, be characterized in energy-conservation, simple, but yield poorly.Adopt fermenter (pond) formula aerobic fermentation in addition, most typical technology is sunlight booth fermenter, is characterized in laying vent-pipe and drainageway at bottom land, and sunlight shed can save energy insulation, but one-time investment is too large, and the cost of system cloud gray model is higher.
The advantage that the present invention gives prominence to is: Sludge Disposal Techniques the widest for current application and organic fertilizer manufacturing technology are combined, and has both given full play to the advantage that the two is respective, effectively overcomes again the two significantly shortcoming; Not only reclaim and make use of the energy in mud and other organic waste and resource to greatest extent, greatly reduce the energy consumption in production process, save investment and production cost: conscientiously eliminate the pollution of the organic wastes such as mud to environment again, turn harm into good, turn waste into wealth; Achieve the minimizing to organic waste disposal such as mud, innoxious, resource utilization, the target reaching energy-saving and environmental protection and develop a circular economy, economic benefit and social benefit significantly improve.
(4), accompanying drawing illustrates:
Fig. 1 is that mud of the present invention makes bio-organic fertilizer process flow sheet;
Fig. 2 is anaerobic digestion stage process equipment flowsheet schematic diagram of the present invention;
Fig. 3 is that slope of the present invention formula gravity automatic dehydration deposits mud groove schematic diagram;
Fig. 4 is aerobic fermentation stage process equipment flowsheet schematic diagram of the present invention.
(5), embodiment:
See Fig. 1: technical matters flow process of the present invention is by middle temperature secondary anaerobic digestion phase, and cripple automatic dehydration stage and bar buttress formula dynamic high temperature aerobic fermentation stage form; Wherein, middle temperature secondary anaerobic digestion phase processing unit system (see Fig. 2) mainly comprises: drop into mud and other organic waste materials by aerogenesis dehydration formula, by 1, pug import, 2, agitated pool, 3, enter dredge pump, 4, heat exchanger, 5, one-level digester, 6, secondary digester, and 7, biogas pipeline, 8, moisture separator, 9, strainer and 11, the formation such as shell pump; Cripple automatic dehydration stage process device systems (see Fig. 3) is primarily of 1, mud inlet, 2, (build the slope formula gravity automatic dehydration on sloped ground in) and deposit mud groove (by A, waterways 1-6, B, drainage base plate, C, left and right sides water filter plate, D, outer insulation film, E, concrete roof), 3, the formation such as electric brake mud mouth of band auger; Through 4, stirrer by making organic fertilizer formula cripple mixed with dry mash and bacterial classification stir evenly after deliver to proving room; Aerobic fermentation stage process device systems (see Fig. 4) mainly comprise the pug of mixing piled 1, bar buttress formula fertilizer heap, 2, tripper; Pug delivers to treatment and finishing section after thermophilic fermentation, and its processing unit mainly comprises 3, auger feeding machine, 4, crusher, 5, rotary conveyor 1,6, vibratory screening apparatus, 7, rotary conveyor 2,8, powder packaging hopper.
Technical matters process description of the present invention is as follows:
1, middle temperature secondary anaerobic digestion phase: by qi exhaustion water formula processed by the south of a city, Daye domestic sludge, Jing Pai company white wine mud, the organic wastes such as surrounding rural animal excrement, dried mushroom bacterium slag and rice hulls, add water (natural pond water) and amendment agitated pool furnishing water ratio about 93% mud, delivering to heat exchanger with entering dredge pump, after about to 50 of heating degree, sending one-level digester to; Treat 12-15 days, medial temperature about 35 degree, carries out mesophilic anaerobic digestion reaction, after discharging the biogas of about 80%, cripple is put into secondary digester and proceeds anaerobic digestion reaction; Treat 7-8 days, biogas release is complete, and anaerobic digestion reaction terminates, and cripple is delivered to slope formula gravity automatic dehydration and deposited in mud groove by available shell pump; In addition, collect the biogas extracted at two-stage digester, by transport pipe, through moisture separator and filter cleaning, its generating available or boiler of feeding burning.
2, the automatic dehydration stage: deliver to slope formula gravity automatic dehydration by shell pump and deposit cripple in mud groove, because being mixed with the loose drainage materials such as amendment, rice hulls, dried mushroom bacterium slag, its dewatering is greatly improved, in groove, total amount reaches more than 300 ton, to reach more than 100 hour continuously extruded under, the cripple water ratio of bottom land is extruded to less than 70% by more than 90%; The cripple of being released by band auger electric brake mud mouth, by composting formula, mix the dry mash such as cotton seed ash, Huangshi fly ash in electric power plant, after being stirred evenly by stirrer, water ratio can be down to about 60%, pug can be delivered to proving room fermentation.
3, the bar buttress formula dynamic high temperature aerobic fermentation stage: the pug mixed thoroughly is delivered to proving room, heap was trapezoidal long pile into about 1.2 meters of high cross sections: through 2-5 days (winter does not separately heat) initial periods, aerobic bacteria in pug is activated, organic matter is decomposed and release of heat, makes mud temperature be raised to more than 45 degree fast; Again through 5-7 days, top temperature can reach more than 65 degree, namely the high-temperature aerobic fermentation stage is entered, now with tripper every day minimumly stirring once, and the door and window of proving room is all opened ventilation oxygenation, to meet the breeding of aerobic bacteria, be beneficial to the fast decoupled to organic matter, and produce high temperature and kill the poisonous and harmful thalline such as intestinal bacteria, transpiring moisture; When the dust temperature aerobic fermentation that starts to decline has been tending towards, through the aging period of 7-10 days, namely dust temperature-stable was below 40 degree, and water ratio is down to less than 40%; Enter post-processing stages, the pug fermenting complete can be dried, send crusher to auger feeding machine and be processed into powder, through the screening of vibratory screening apparatus, coarse fodder on sieve can return stirrer and mix cripple by composting formula rate and ferment, hopper sent into by fines under sieve, can directly be packaged into as bio-organic fertilizer is used for farm crop and vegetable and fruit garden; Also can be passed through tablets press and be processed into particulate state, drying is made fish guano and is used for aquaculture; Can also be mixed in proportion with the chemical fertilizer such as nitrogen, phosphorus, potassium, make efficient compound fertilizer and topdress for farm crop.

Claims (4)

1. one kind is first extracted biogas ferment making organic fertilizer again with mud, comprise and first adopt anaerobic digestion techniques, extract the biogas in mud and other organic waste, adopt again and deposit mud groove automatic dehydration technology, extrude the portion of water in cripple, then aerobic fermentation technology is adopted, cripple and other organic waste are made into organic fertilizer, it is characterized in that: described anaerobic digestion techniques is warm secondary anaerobic digestion techniques in adopting, depositing mud groove automatic dehydration technology is adopt slope formula gravity automatic dehydration technology, aerobic fermentation technology adopts bar buttress formula dynamic high temperature aerobic fermentation technology.
2. one mud according to claim 1 first extracts biogas ferment making bio-organic fertilizer again, it is characterized in that: warm secondary anaerobic digestion techniques in described employing, that mud is mixed other organic waste by the formula that aerogenesis dewaters, after stirring, the heating of mud temperature is pumped into one-level digester again, after the most of biogas of extraction, cripple is put into secondary digester to continue to extract residue biogas, treat that anaerobic digestion reaction terminates, cripple is pumped into from secondary digester and deposits mud groove.
3. one mud according to claim 1 first extracts biogas ferment making bio-organic fertilizer again, it is characterized in that: mud groove automatic dehydration technology is deposited in described employing, by long 20-30M, wide, high each 3-4M deposits mud groove, and build on the sloped ground of pitch angle 30-60 degree, bottom land and both sides have waterways, trough floor and biside plate are all the cement pre-fabricated panels with water filtering function, have thin film insulating layer outside top board and biside plate, the epiphragma summer takes off, and bottom land is equipped with electric brake mud discharging mouth.
4. one mud according to claim 1 first extracts biogas ferment making bio-organic fertilizer again, it is characterized in that: described employing bar buttress formula dynamic high temperature aerobic fermentation technology, by the cripple of automatic dehydration, by making organic fertilizer formula, mix dry powder class waste to stir evenly in stirrer, deliver to proving room heap slivering buttress shape, through technical process such as initial, the thermophilic fermentation of aerobic fermentation and post-processing stages, produce the bio-organic fertilizer meeting national standard.
CN201410152660.1A 2014-04-14 2014-04-14 Bio-organic fertilizer preparation through extraction of biogas with slurry and then fermentation CN104973744A (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5358373A (en) * 1976-11-01 1978-05-26 Mitsubishi Heavy Ind Ltd Process for composting organic wastes
CN1891677A (en) * 2006-02-10 2007-01-10 中国科学院遗传与发育生物学研究所 Apple residue comprehensive utilizing and treating method
CN101045652A (en) * 2005-06-24 2007-10-03 陈志琦 Comprehensive treatment method of bio-pollutant
CN101062822A (en) * 2007-05-29 2007-10-31 沈阳航空工业学院 Two-section type combined anaerobic digestion process
CN101637778A (en) * 2009-08-25 2010-02-03 云南昆船设计研究院 Comprehensive processing technology of organic wastes
CN101774744A (en) * 2010-02-24 2010-07-14 无锡市东宝水处理科技有限公司 Unpowered sludge dehydration device
CN101863692A (en) * 2009-04-29 2010-10-20 岳寿松 Method for preparing bioorganic fertilizer by using city life sludge
US20110079060A1 (en) * 2008-04-15 2011-04-07 Rcra Clean Energy Solutions, Inc. Methods of reducing greenhouse emissions from animal manure
CN201842750U (en) * 2010-11-04 2011-05-25 黄瑞文 Sedimentable sludge dewatering device of animal farm

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5358373A (en) * 1976-11-01 1978-05-26 Mitsubishi Heavy Ind Ltd Process for composting organic wastes
CN101045652A (en) * 2005-06-24 2007-10-03 陈志琦 Comprehensive treatment method of bio-pollutant
CN1891677A (en) * 2006-02-10 2007-01-10 中国科学院遗传与发育生物学研究所 Apple residue comprehensive utilizing and treating method
CN101062822A (en) * 2007-05-29 2007-10-31 沈阳航空工业学院 Two-section type combined anaerobic digestion process
US20110079060A1 (en) * 2008-04-15 2011-04-07 Rcra Clean Energy Solutions, Inc. Methods of reducing greenhouse emissions from animal manure
CN101863692A (en) * 2009-04-29 2010-10-20 岳寿松 Method for preparing bioorganic fertilizer by using city life sludge
CN101637778A (en) * 2009-08-25 2010-02-03 云南昆船设计研究院 Comprehensive processing technology of organic wastes
CN101774744A (en) * 2010-02-24 2010-07-14 无锡市东宝水处理科技有限公司 Unpowered sludge dehydration device
CN201842750U (en) * 2010-11-04 2011-05-25 黄瑞文 Sedimentable sludge dewatering device of animal farm

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
全国勘察设计注册工程师公用设备专业管理委员会秘书处: "《全国勘察设计注册公用设备工程师(第二版)》", 30 April 2007, 中国建筑工业出版社 *
张智等: "《给排水科学与工程专业毕业设计指南(第二版)》", 31 August 2008, 中国水利水电出版社 *
汪理全等: "《矿业工程概论》", 31 August 2004, 中国矿业大学出版社 *
王小文: "《水污染控制工程》", 31 August 2002, 煤炭工业出版社 *
谢小青: "《污水处理工》", 30 June 2011, 厦门大学出版社 *

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Application publication date: 20151014