CN103204718A - Comprehensive utilization method of livestock and poultry manures and crop straw resources - Google Patents
Comprehensive utilization method of livestock and poultry manures and crop straw resources Download PDFInfo
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- CN103204718A CN103204718A CN2013101540820A CN201310154082A CN103204718A CN 103204718 A CN103204718 A CN 103204718A CN 2013101540820 A CN2013101540820 A CN 2013101540820A CN 201310154082 A CN201310154082 A CN 201310154082A CN 103204718 A CN103204718 A CN 103204718A
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- 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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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The invention discloses a comprehensive utilization method of livestock and poultry manures and crop straw resources, which comprises the following steps of: (1) anaerobic fermentation: mixing livestock and poultry manures and crushed straw, adjusting the solid content of the obtained mixture to 15-40%, and adding an anaerobic fermentation inoculum into the mixture to carry out anaerobic fermentation so that biogas is produced and a biogas residue and biogas slurry mixture is obtained; (2) biogas utilization: purifying the biogas obtained in the step (1), and taking the purified biogas as boiler gas; (3) utilization of biogas residue and biogas slurry: not carrying out solid-liquid separation on the biogas residue and biogas slurry mixture obtained in the step (1), but directly taking the biogas residue and biogas slurry mixture as a mixed aerobic composting raw material; and (4) aerobic composting mixing: mixing the biogas residue and biogas slurry mixture obtained in the step (1), crushed straw and part of manures, and after the moisture content of the obtained mixture is adjusted to be 50-60%, carrying out aerobic composting. According to the invention, the biogas obtained through anaerobic fermentation is converted into a heat source of mixed aerobic composting, and the biogas residue and biogas slurry mixture is used for producing bio-organic compound fertilizers.
Description
Technical field
The present invention sends out and belongs to agricultural wastes comprehensive utilization of resources and field of environment protection, relate in particular to a kind of feces of livestock and poultry and crop material anaerobically fermenting, biogas utilization, biogas residue and biogas liquid mixture directly with the stalk of pulverizing, the resource utilization method of part feces of livestock and poultry mixing aerobic compost.
Background technology
At present, along with the fast development of China's livestock and poultry breeding industry, feces of livestock and poultry quantity discharged every day increases severely, if directly do not apply the farmland through effectively handling, can bring severe contamination to environment, even endanger peripheral villager's health.
At this problem, all adopt diverse ways that feces of livestock and poultry is carried out comprehensive utilization of resources both at home and abroad and handle, the most frequently used method is that the wet method anaerobically fermenting is handled.But adopt the wet method anaerobically fermenting to handle feces of livestock and poultry, can discharge a large amount of natural pond liquid every day.Because natural pond liquid all returns the field certain difficulty is arranged, residue natural pond liquid can cause secondary pollution to environment, therefore, seeks feces of livestock and poultry treatment process more advanced, more science, is current problem demanding prompt solution
The present invention is raw material with feces of livestock and poultry and crop material, mix the aerobic compost thermal source through transforming into again by dry method anaerobically fermenting gained biogas, the biogas residue and biogas liquid mixture does not carry out solid-liquid separation, be directly used in the production biological organic complex fertilizer, this utilization of waste as resource pattern provides a kind of novel method for feces of livestock and poultry and crop material comprehensive utilization of resources.Compare with the wet method anaerobic fermentation processing method that the past is commonly used, this technology is produced beyond the biological organic complex fertilizer except producing biogas, and a large amount of natural ponds liquid that also can solve the generation of wet method anaerobically fermenting can't effectively utilize and discharge a difficult problem.Simultaneously stalk is used for the dry method anaerobically fermenting and mixes the aerobic compost part material, not only reduced the harm that burning straw brings to environment, also can obtain good economic benefit.
Summary of the invention
The objective of the invention is to: the ight soil that produces at livestock and poultry farms in scale carries out comprehensive effectively processing.Comprise that the dry method anaerobically fermenting produces biogas, and biogas is used through transforming into the thermal source that mixes aerobic compost, the biogas residue and biogas liquid mixture that produces in the dry method anaerobic fermentation process is mixed with stalk, the part ight soil of pulverizing, mix aerobic compost, produce biological organic complex fertilizer.The invention provides a kind of feces of livestock and poultry and crop material comprehensive utilization of resources novel method.
Technical solution of the present invention is: a kind of feces of livestock and poultry and crop material comprehensive utilization of resources method, and step is as follows:
(1) anaerobically fermenting: solid content is regulated in the stalk mixing of feces of livestock and poultry and pulverizing reached 15%-40%, add the anaerobically fermenting inoculum and carry out producing methane through anaerobic fermentation and obtain the biogas residue and biogas liquid mixture, 30 ℃-40 ℃ of leavening temperatures, fermentation period 20-30d;
(2) biogas utilization: will use as the boiler combustion gas behind step (1) the gained marsh gas purifying;
(3) biogas residue and biogas liquid utilization: step (1) gained biogas residue and biogas liquid mixture is not carried out solid-liquid separation, directly as mixing aerobic composting material;
(4) mix aerobic compost: step (1) gained biogas residue and biogas liquid mixture is mixed with stalk, the part ight soil of pulverizing, mixed mixture is regulated water ratio and is reached 50%-60%, after C/N regulates 20-50, carry out aerobic compost, the aerobic compost cycle is about 20-35d, will regularly ventilate or turning during mixing aerobic compost, all proportions is mass ratio.
With step (1) gained biogas dewater, desulfurization handles the back and uses as the boiler combustion gas, the high-temperature-hot-water that boiler produces or steam are as the thermal source that mixes aerobic compost, with regulation and control leavening temperature and time.
Advantage of the present invention:
(1) the invention provides cover feces of livestock and poultry and a crop material comprehensive utilization of resources novel method.
(2) the present invention mixes the aerobic compost thermal source through transforming into again by dry method anaerobic ferment process gained biogas, not only can regulate and control leavening temperature and time, can also save the part of fuel energy.
(3) dry method anaerobic ferment process gained biogas residue and biogas liquid mixture does not need to carry out solid-liquid separation, can fundamentally solve natural pond liquid exhaust emission environmental problem directly as mixing aerobic composting material.
(4) dry method anaerobic ferment process gained biogas residue and biogas liquid mixture has carried out the C/N adjusting with after stalk, the part ight soil of pulverizing mix, and makes that to mix aerobic composting conditions more reasonable.
(5) dry method anaerobic ferment process gained biogas residue and biogas liquid mixture mixes aerobic compost with after stalk, the part ight soil of pulverizing mix, and produces biological organic complex fertilizer, has improved added value of product, makes product have more the market competitiveness.
(6) dry method anaerobically fermenting and mixing aerobic compost as part material, not only can be regulated the solid content of the required material of dry method anaerobically fermenting to stalk, can also regulate the water ratio that mixes aerobic compost material.
(7) dry method anaerobically fermenting and mixing aerobic compost as part material, not only can be turned waste into wealth stalk, can also reduce burning straw to the harm that environment brings, and have good benefits in environment and economic benefit.
Description of drawings
Fig. 1 is poultry manure and crop material comprehensive utilization of resources method synoptic diagram.
Specific implementation method
Biogas engineering with ten thousand cow head plants is example, specifically implements as follows:
Anaerobically fermenting: stalk and cow dung with pulverizing, join in the fermentor tank, add the anaerobically fermenting inoculum again and inoculate, mix, regulate total solid content TS load 15%-40% in the fermentor tank., leavening temperature is controlled at 30 ℃-40 ℃, by whipping appts material is stirred in the fermenting process.
Biogas utilization: the biogas that produces is used as the boiler combustion gas behind the dehydration desulfurizing and purifying.
Biogas residue and biogas liquid utilizes: the biogas residue and biogas liquid mixture that produces is not carried out solid-liquid separation, be transported to the compost scene, directly use as mixing aerobic composting material.
Mix aerobic compost: the biogas residue and biogas liquid mixture is mixed with stalk, the part ight soil of pulverizing, mixed mixture is regulated water ratio and is reached 50%-60%, after C/N regulates 20-50, add the ripe rotten agent of 0.1%-0.2% and carry out aerobic compost, during mixing aerobic compost, will regularly ventilate or artificial turning or mechanical turning.
Claims (5)
1. a feces of livestock and poultry and crop material comprehensive utilization of resources method: it is characterized in that step is as follows:
(1) anaerobically fermenting: solid content is regulated in the stalk mixing of feces of livestock and poultry and pulverizing reached 15%-40%, add the anaerobically fermenting inoculum and carry out producing methane through anaerobic fermentation and obtain the biogas residue and biogas liquid mixture, 30 ℃-40 ℃ of leavening temperatures, fermentation period 20-30d;
(2) biogas utilization: will use as the boiler combustion gas behind step (1) the gained marsh gas purifying;
(3) biogas residue and biogas liquid utilization: step (1) gained biogas residue and biogas liquid mixture is not carried out solid-liquid separation, directly as mixing aerobic composting material;
(4) mix aerobic compost: step (1) gained biogas residue and biogas liquid mixture is mixed with stalk, the part ight soil of pulverizing, mixed mixture is regulated water ratio and is reached 50%-60%, after C/N regulates 20-50, carry out aerobic compost, the aerobic compost cycle is about 20-35d, will regularly ventilate or turning during mixing aerobic compost, all proportions is mass ratio.
2. a kind of feces of livestock and poultry according to claim 1 and crop material comprehensive utilization of resources method, it is characterized in that producing methane through anaerobic fermentation and obtaining the biogas residue and biogas liquid mixture is the dry method anaerobically fermenting, 30 ℃-40 ℃ of leavening temperatures, fermentation period 20-30d.
3. a kind of feces of livestock and poultry according to claim 1 and 2 and crop material comprehensive utilization of resources method is characterized in that dry method anaerobically fermenting gained biogas residue and biogas liquid mixture does not carry out solid-liquid separation, directly use as mixing aerobic composting material.
4. according to claim 1 or 2 or 3 described a kind of feces of livestock and poultry and crop material comprehensive utilization of resources method, it is characterized in that mixing aerobic compost: gained biogas residue and biogas liquid mixture does not carry out solid-liquid separation, directly mix with stalk, the part ight soil pulverized, mixed mixture is regulated water ratio and is reached 50%-60%, after C/N regulates 20-50, add the ripe rotten agent mixing aerobic compost of 0.1%-0.2%, artificial or the mechanical turning of regularly ventilating mixes the aerobic compost cycle and is about 20-35d.
5. a kind of feces of livestock and poultry according to claim 1 and 2 and crop material comprehensive utilization of resources method, it is characterized in that with step (1) gained biogas dewater, desulfurization handles the back and uses as the boiler combustion gas, the high-temperature-hot-water that boiler produces or steam are as the thermal source that mixes aerobic compost, with regulation and control leavening temperature and time.
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| CN103641593A (en) * | 2013-11-12 | 2014-03-19 | 广东省农业科学院农业资源与环境研究所 | Method for preparing garden media from biogas slurry |
| CN103664285A (en) * | 2013-11-20 | 2014-03-26 | 青岛天人环境股份有限公司 | Biogas slurry solidifying organic fertilizer for increasing production of melons and fruits and preparation method of biogas slurry solidifying organic fertilizer |
| CN103664358A (en) * | 2013-11-27 | 2014-03-26 | 青岛天人环境股份有限公司 | Biogas slurry curing organic fertilizer for solanberry yield increase and preparation method thereof |
| CN104119111A (en) * | 2014-07-14 | 2014-10-29 | 南京工业大学 | Technology for preparing organic fertilizer from blue algae, reed, and paddy rice straw |
| CN104120151A (en) * | 2014-07-14 | 2014-10-29 | 南京工业大学 | Dry anaerobic fermentation technology for preparing biogas from blue algae, reed, and paddy rice straw |
| CN104498531A (en) * | 2014-12-08 | 2015-04-08 | 柳州东侯生物能源科技有限公司 | Biogas preparation raw material |
| CN104496567A (en) * | 2014-12-17 | 2015-04-08 | 山东翔露农牧科技有限公司 | System and method for producing biogas manure from pig excrement and urine as chemical fertilizer |
| CN104498530A (en) * | 2014-12-08 | 2015-04-08 | 柳州东侯生物能源科技有限公司 | Biogas production raw material |
| CN105000925A (en) * | 2015-07-08 | 2015-10-28 | 中国农业大学 | Biogas residue combined aerobic composting method |
| CN105586362A (en) * | 2016-03-18 | 2016-05-18 | 上海市农业科学院 | Method for producing methane through high-temperature dry type anaerobic co-fermentation |
| CN106187458A (en) * | 2016-07-07 | 2016-12-07 | 全椒县夏军养猪专业合作社 | Swine manure and stalk fermentation compost method |
| CN106220262A (en) * | 2014-10-16 | 2016-12-14 | 农业部南京农业机械化研究所 | A kind of digestion process fowl and animal excrement and the method for straw |
| CN106431555A (en) * | 2016-08-12 | 2017-02-22 | 东北师范大学 | Method for preparing methane and organic compound fertilizer from plant straws |
| CN106588178A (en) * | 2016-11-30 | 2017-04-26 | 南宁市浩特竹鼠养殖场 | Processing method of excrement of bamboo rat |
| CN106699300A (en) * | 2016-12-16 | 2017-05-24 | 广东省农业科学院农业资源与环境研究所 | Novel technology for aerobic-anaerobic-aerobic biological treatment of night soil and straw |
| CN107162321A (en) * | 2017-05-26 | 2017-09-15 | 农业部规划设计研究院 | A kind of integrated treatment for cow manure method and apparatus of the livestock and poultry farm based on dry cleaning up excrement |
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| CN110078561A (en) * | 2019-05-23 | 2019-08-02 | 甘肃省治沙研究所 | A kind of method of excrement and the comprehensive utilization of crop material combined ferment |
| CN111454994A (en) * | 2020-03-30 | 2020-07-28 | 浙江省海洋水产研究所 | Treatment method of ecological breeding waste |
| CN111517564A (en) * | 2020-04-15 | 2020-08-11 | 黑龙江省农业科学院畜牧兽医分院 | Method for treating and utilizing sewage of farm |
| CN112194542A (en) * | 2020-10-20 | 2021-01-08 | 扬大(常熟)现代农业发展研究院有限公司 | Preparation method of straw fertilizer for agricultural circulation |
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| CN112522326A (en) * | 2020-12-24 | 2021-03-19 | 山东省科学院能源研究所 | Method for producing biogas by treating dry straws through anaerobic dry fermentation and aerobic fermentation-anaerobic fermentation |
| CN112522326B (en) * | 2020-12-24 | 2024-01-30 | 山东省科学院能源研究所 | Method for producing biogas by processing dry straw through anaerobic dry fermentation and aerobic fermentation-anaerobic fermentation |
| CN113024325A (en) * | 2021-04-22 | 2021-06-25 | 中国水稻研究所 | Liquid bacterial fertilizer prepared from biogas slurry in pig farm, and preparation method and application method thereof |
| CN113215201A (en) * | 2021-06-09 | 2021-08-06 | 重庆大学 | Coupling process for mixing pig manure with rice straw solid-state biogas fermentation and biogas residue aerobic composting |
| CN113667699A (en) * | 2021-08-19 | 2021-11-19 | 郑州轻工业大学 | Circular treatment method suitable for agricultural organic solid waste |
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Application publication date: 20130717 |