CN102964043A - Technical method for preparing methane by using feces - Google Patents

Technical method for preparing methane by using feces Download PDF

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Publication number
CN102964043A
CN102964043A CN201210490717XA CN201210490717A CN102964043A CN 102964043 A CN102964043 A CN 102964043A CN 201210490717X A CN201210490717X A CN 201210490717XA CN 201210490717 A CN201210490717 A CN 201210490717A CN 102964043 A CN102964043 A CN 102964043A
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CN
China
Prior art keywords
biogas
natural pond
excrement
carries out
anaerobic reaction
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Legal status (The legal status 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 status listed.)
Pending
Application number
CN201210490717XA
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Chinese (zh)
Inventor
李远昌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PUDING COUNTY CHANGWEI LIVESTOCK FARM
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PUDING COUNTY CHANGWEI LIVESTOCK FARM
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Application filed by PUDING COUNTY CHANGWEI LIVESTOCK FARM filed Critical PUDING COUNTY CHANGWEI LIVESTOCK FARM
Priority to CN201210490717XA priority Critical patent/CN102964043A/en
Publication of CN102964043A publication Critical patent/CN102964043A/en
Pending legal-status Critical Current

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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
    • 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

Abstract

The invention discloses a technical method for preparing methane by using feces, and the technical method comprises the following steps of: firstly stirring and diluting the feces in an adjusting tank, naturally precipitating to remove larger-particle inorganic substances such as silt, suspended substances and the like in the feces, after fully and uniformly mixing materials, lifting the feces to an up-flow solid anaerobic reaction tank to carry out anaerobic treatment and enabling the methane which is produced through the fermentation in the up-flow solid anaerobic reaction tank and subjected to the treatment of a gas-water separator and a desulfurizing tower to enter a gas storage tank. According to the invention, the up-flow solid anaerobic reaction tank is adopted to carry out the anaerobic treatment, so that the process is simple, the preparation cycle is short, the produced biogas slurry can be applied to and comprehensively utilized in pollution-free planting bases and the like and the biogas residue can be used for manufacturing an organic fertilizer at the same time.

Description

A kind of processing method with the dirty preparation of excrement biogas
Technical field
The invention belongs to the eco-friendly power source technical field, particularly relate to a kind of processing method with the dirty preparation of excrement biogas.
Background technology
The bulky stool that livestock and poultry farm is drained is a kind of physical resources, has fuel, feed, fertilizer and four kinds of functions of industrial raw material, and as a kind of abundant available stock, a large amount of feces of livestock and poultry of concentrating rationally utilize and more and more are taken seriously.Dissolving and discharging from original natural purification of feces of livestock and poultry develops into the method for utilizing now various biopurifications, can reduce and stop like this feces of livestock and poultry to the pollution of environment, improvement soil.
Adopt at present anaerobically fermenting to process the less than 15% of liquid dung, adopt the methods such as ight soil heating, drying and microwave drying, also large because of its power consumption, cycle is long, unicity development and use complementary effect is poor, makes to promote to be restricted, in the face of the scale of hundreds and thousands of tons of day dischargings is raised fecal sewage, so must take measures with the least delay possible, solve discharging and the problem of environmental pollution of feces of livestock and poultry.
Summary of the invention
For the problems referred to above, the invention provides the processing method with the dirty preparation of excrement biogas that a kind of technique is simple, preparation cycle is short.
For addressing the above problem, the technical scheme that the present invention takes is:
A kind of processing method with the dirty preparation of excrement biogas, described this processing method may further comprise the steps:
1) with the dirty thin up of the excrement of collecting, dilution is sent into equalizing tank by hopper and is stirred and continue dilution, after carrying out natural sedimentation and removing the macrobead inorganicss such as silt in the ight soil and suspended substance, leaves standstill 8~15 days;
2) after material fully is mixed, excrement soiled ends lift pump is promoted to flow lifting type solid anaerobic reaction-pot and carries out anaerobic treatment;
3) biogas that produces of flow lifting type solid anaerobic reaction-pot enters water knockout through biogas pipeline and carries out processed;
4) biogas after the dehydration enters digester through biogas pipeline and carries out once desulfurization and process;
5) biogas behind the once desulfurization enters the second digester through biogas pipeline and carries out secondary desulfuration and process;
6) biogas behind secondary desulfuration enters water knockout through biogas pipeline and dehydrates processing;
7) biogas after the drying is entered gas-holder through biogas pipeline;
8) the natural pond liquid, the natural pond slag that flow lifting type solid anaerobic reaction-pot are produced separate, and natural pond liquid enters liquid field, natural pond storage pond, and natural pond liquid is applied to the comprehensive utilizations such as non-polluted planting base, and unnecessary natural pond liquid is back to and carries out aerobic treatment in the water collecting basin;
9) the natural pond slag that separates is through the sludge dewatering equipment processed, and the natural pond slag after the dehydration is used for making fertilizer and is applied to nuisanceless farmland.
Further, the diluting water of described step 1) is sanitary sewage or tap water.
Further, the excrement dirt accounts for 3~5% of the interior material total amount of equalizing tank in the described step 1) equalizing tank.
Further, temperature is controlled at 30~40 ℃ in the described step 1) flow lifting type solid anaerobic reaction-pot.
Because the present invention has adopted flow lifting type solid anaerobic reaction-pot to carry out anaerobic treatment, technique is simple, and preparation cycle is short, and produced simultaneously natural pond liquid can be applied to the comprehensive utilizations such as non-polluted planting base, and the natural pond slag can be made fertilizer.
Description of drawings
Fig. 1 is process flow sheet of the present invention.
Embodiment
The invention will be further described below in conjunction with specific embodiment, is used for explaining the present invention in illustrative examples and the explanation of this invention, but not as a limitation of the invention.
Embodiment 1
1) the dirty sanitary sewage that adds of the excrement of collecting is diluted, dilution is sent into equalizing tank by hopper and is stirred and continue to be diluted to the excrement dirt and account for 3% of total material, after carrying out natural sedimentation and removing the macrobead inorganicss such as silt in the ight soil and suspended substance, leaves standstill 8 days;
2) after material fully is mixed, excrement soiled ends lift pump is promoted to flow lifting type solid anaerobic reaction-pot and carries out anaerobic treatment, and temperature is controlled at 30 ℃ in the tank;
3) biogas that produces of flow lifting type solid anaerobic reaction-pot enters water knockout through biogas pipeline and carries out processed;
4) biogas after the dehydration enters digester through biogas pipeline and carries out once desulfurization and process;
5) biogas behind the once desulfurization enters the second digester through biogas pipeline and carries out secondary desulfuration and process;
6) biogas behind secondary desulfuration enters water knockout through biogas pipeline and dehydrates processing;
7) biogas after the drying is entered gas-holder through biogas pipeline;
8) the natural pond liquid, the natural pond slag that flow lifting type solid anaerobic reaction-pot are produced separate, and natural pond liquid enters liquid field, natural pond storage pond, and natural pond liquid is applied to the comprehensive utilizations such as non-polluted planting base, and unnecessary natural pond liquid is back to and carries out aerobic treatment in the water collecting basin;
9) the natural pond slag that separates is through the sludge dewatering equipment processed, and the natural pond slag after the dehydration is used for making fertilizer and is applied to nuisanceless farmland.
Above embodiment, the dosing rate of excrement dirt can reach 10%.
Embodiment 2
1) the dirty sanitary sewage that adds of the excrement of collecting is diluted, dilution is sent into equalizing tank by hopper and stir to continue is added tap water and be diluted to the excrement dirt and account for 5% of total material, after carrying out natural sedimentation and removing the macrobead inorganicss such as silt in the ight soil and suspended substance, left standstill 15 days;
2) after material fully is mixed, excrement soiled ends lift pump is promoted to flow lifting type solid anaerobic reaction-pot and carries out anaerobic treatment, and temperature is controlled at 40 ℃ in the tank;
3) biogas that produces of flow lifting type solid anaerobic reaction-pot enters water knockout through biogas pipeline and carries out processed;
4) biogas after the dehydration enters digester through biogas pipeline and carries out once desulfurization and process;
5) biogas behind the once desulfurization enters the second digester through biogas pipeline and carries out secondary desulfuration and process;
6) biogas behind secondary desulfuration enters water knockout through biogas pipeline and dehydrates processing;
7) biogas after the drying is entered gas-holder through biogas pipeline;
8) the natural pond liquid, the natural pond slag that flow lifting type solid anaerobic reaction-pot are produced separate, and natural pond liquid enters liquid field, natural pond storage pond, and natural pond liquid is applied to the comprehensive utilizations such as non-polluted planting base, and unnecessary natural pond liquid is back to and carries out aerobic treatment in the water collecting basin;
9) the natural pond slag that separates is through the sludge dewatering equipment processed, and the natural pond slag after the dehydration is used for making fertilizer and is applied to nuisanceless farmland.
Above embodiment, the dosing rate of excrement dirt can reach 7%.
Embodiment 3
10) the dirty sanitary sewage that adds of the excrement of collecting is diluted, dilution is sent into equalizing tank by hopper and is stirred and continue to be diluted to the excrement dirt and account for 4% of total material, after carrying out natural sedimentation and removing the macrobead inorganicss such as silt in the ight soil and suspended substance, leaves standstill 12 days;
11) after material fully is mixed, excrement soiled ends lift pump is promoted to flow lifting type solid anaerobic reaction-pot and carries out anaerobic treatment, and temperature is controlled at 35 ℃ in the tank;
12) biogas that produces of flow lifting type solid anaerobic reaction-pot enters water knockout through biogas pipeline and carries out processed;
13) biogas after the dehydration enters digester through biogas pipeline and carries out once desulfurization and process;
14) biogas behind the once desulfurization enters the second digester through biogas pipeline and carries out secondary desulfuration and process;
15) biogas behind secondary desulfuration enters water knockout through biogas pipeline and dehydrates processing;
16) biogas after the drying is entered gas-holder through biogas pipeline;
17) the natural pond liquid, the natural pond slag that flow lifting type solid anaerobic reaction-pot are produced separate, and natural pond liquid enters liquid field, natural pond storage pond, and natural pond liquid is applied to the comprehensive utilizations such as non-polluted planting base, and unnecessary natural pond liquid is back to and carries out aerobic treatment in the water collecting basin;
18) the natural pond slag that separates is through the sludge dewatering equipment processed, and the natural pond slag after the dehydration is used for making fertilizer and is applied to nuisanceless farmland.
Above embodiment, the dosing rate of excrement dirt can reach 12%.

Claims (4)

1. processing method with the dirty preparation of excrement biogas is characterized in that described this processing method may further comprise the steps:
1) with the dirty thin up of the excrement of collecting, dilution is sent into equalizing tank by hopper and is stirred and continue dilution, after carrying out natural sedimentation and removing the macrobead inorganicss such as silt in the ight soil and suspended substance, leaves standstill 8~15 days;
2) after material fully is mixed, excrement soiled ends lift pump is promoted to flow lifting type solid anaerobic reaction-pot and carries out anaerobic treatment;
3) biogas that produces of flow lifting type solid anaerobic reaction-pot enters water knockout through biogas pipeline and carries out processed;
4) biogas after the dehydration enters digester through biogas pipeline and carries out once desulfurization and process;
5) biogas behind the once desulfurization enters the second digester through biogas pipeline and carries out secondary desulfuration and process;
6) biogas behind secondary desulfuration enters water knockout through biogas pipeline and dehydrates processing;
7) biogas after the drying is entered gas-holder through biogas pipeline;
8) the natural pond liquid, the natural pond slag that flow lifting type solid anaerobic reaction-pot are produced separate, and natural pond liquid enters liquid field, natural pond storage pond, and natural pond liquid is applied to the comprehensive utilizations such as non-polluted planting base, and unnecessary natural pond liquid is back to and carries out aerobic treatment in the water collecting basin;
9) the natural pond slag that separates is through the sludge dewatering equipment processed, and the natural pond slag after the dehydration is used for making fertilizer and is applied to nuisanceless farmland.
2. processing method with the dirty preparation of excrement biogas claimed in claim 1, it is characterized in that: the diluting water of described step 1) is sanitary sewage or tap water.
3. processing method with the dirty preparation of excrement biogas claimed in claim 1 is characterized in that: the excrement dirt accounts for 3~5% of material total amount in the equalizing tank in the described step 1) equalizing tank.
4. processing method with the dirty preparation of excrement biogas claimed in claim 1, it is characterized in that: temperature is controlled at 30~40 ℃ in the described step 1) flow lifting type solid anaerobic reaction-pot.
CN201210490717XA 2012-11-27 2012-11-27 Technical method for preparing methane by using feces Pending CN102964043A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103224315A (en) * 2013-03-21 2013-07-31 曹玉成 Sludge comprehensive treatment and conversion product recycle method
CN105293828A (en) * 2015-11-17 2016-02-03 昆明理工大学 Method for filtering biogas slurry by utilizing bagasse
CN106145588A (en) * 2015-04-24 2016-11-23 浙江景生态牧业有限公司 A kind of cattle manure recycling system
CN107892624A (en) * 2017-12-21 2018-04-10 山东绿福地生物科技有限公司 A kind of resource utilization method of livestock and poultry feces
CN109775949A (en) * 2017-11-13 2019-05-21 贵州省思南县山野牧业有限公司 A kind of process preparing biogas with waste
CN110229026A (en) * 2019-06-24 2019-09-13 瑞凯企业管理服务(张家港)有限公司 The method of long-term cropping fertilizer is used for after a kind of live pig treatment for cow manure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103224315A (en) * 2013-03-21 2013-07-31 曹玉成 Sludge comprehensive treatment and conversion product recycle method
CN103224315B (en) * 2013-03-21 2014-05-14 曹玉成 Sludge comprehensive treatment and conversion product recycle method
CN106145588A (en) * 2015-04-24 2016-11-23 浙江景生态牧业有限公司 A kind of cattle manure recycling system
CN105293828A (en) * 2015-11-17 2016-02-03 昆明理工大学 Method for filtering biogas slurry by utilizing bagasse
CN109775949A (en) * 2017-11-13 2019-05-21 贵州省思南县山野牧业有限公司 A kind of process preparing biogas with waste
CN107892624A (en) * 2017-12-21 2018-04-10 山东绿福地生物科技有限公司 A kind of resource utilization method of livestock and poultry feces
CN110229026A (en) * 2019-06-24 2019-09-13 瑞凯企业管理服务(张家港)有限公司 The method of long-term cropping fertilizer is used for after a kind of live pig treatment for cow manure

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Application publication date: 20130313