1. technical name

Resource utilization of livestock and poultry manure-co-generation technology of heat, power and fertilizer

2. technology type

Full life cycle resource conservation and recycling technology

3. scope of application

Livestock and poultry breeding; energy environment; organic fertilizer production, etc.

4. Brief description of technology

The main research is on biogas anaerobic fermentation control technology. The CSTR moderate temperature anaerobic reactor converts livestock and poultry manure with TS of 8%-15% into biogas, biogas residue and biogas slurry; the biogas is purified and used to drive biogas generator sets to generate electricity. At the same time, the waste heat of the generator sets is used to produce organic fertilizer from biogas residue. The core process is "pretreatment +CSTR high-temperature anaerobic fermentation + biological desulfurization and purification + biogas power generation + biogas residue to produce organic fertilizer + biogas slurry transported out, consumed and returned to the field". Technical features: It realizes continuous operation of the moderate temperature anaerobic digester in alpine areas throughout the year. Key equipment: raw material treatment system;CSTR moderate temperature anaerobic reactor, etc.

5. technical information

The daily production of biogas is approximately 25000 m³, and the annual production of biogas is 5 million m³; the biogas power generation capacity is 8 million kWh.

6. Commercial applications

The projects that have achieved industrialization mainly include Mengniu Dairy Aoya Ranch Thermal and Fertilizer Cogeneration Project, Inner Mongolia Fuyuan Animal Husbandry Co., Ltd. biogas comprehensive utilization circular economy industrial chain project, Inner Mongolia Shengmu High-tech Animal Husbandry Co., Ltd. manure treatment solid-liquid separation project, Hebei Ju Carbon Biotechnology Co., Ltd. Comprehensive utilization recycling industry chain project, Linxia Yiqing Food Co., Ltd. sewage treatment project, Saikexing Ningxia Ermu sewage treatment project, etc.

7. Help/support you hope to receive during the technology transfer process

policy support

8. equipment investment

Construction scale: The biogas output is 65500 m3/day, and the annual output of biogas is 23.58 million m3. The annual power generation of this project is 51.876 million kW·h; the annual output of biogas residue is 86,900 tons; The annual output of biogas slurry is 887,100 tons, and the annual processing of livestock and poultry manure is 1,000,800 tons. Serial number system capital investment (ten thousand yuan) 1 biogas desulfurization system 253 2 anaerobic fermentation system 930 3 raw material treatment system 250 4 fermentation body valve pipeline installation system 390 5 circulation heating system 93 6 manure collection system 581.60 7 fermentation body electrical equipment installation system 442.40 8 fermentation stirring system 377.63 9 other auxiliary systems 400 total 3717.63.

9. Annual operation and maintenance fee

(1) Wages and welfare expenses: Wages and welfare expenses; Recently, the factory has 26 people, and the per capita annual wage and welfare are calculated at 42,000/person/year, and the estimated annual wage and welfare is 1.092 million yuan. (2) Depreciation of fixed assets/amortization of intangible assets Fixed assets are depreciated using the straight-line method, with a depreciation period of 20 years and an estimated net residual value rate of 5%. For details, please refer to the "Estimation Table of Depreciation Expenses for Fixed Assets" and the "Estimation Table of Amortization Expenses for Intangible Assets and Other Assets". (3) Equipment maintenance costs are calculated at 1.8% of the original value of fixed assets. (4) Other expenses: land lease. (5) After calculation, the operating cost of this project after reaching production capacity is 11.6184 million yuan/year.

10. investment recovery period

The analysis of repayment capacity assumes that starting from the official production year, the sum of the net profit after tax, depreciation and amortization expenses of each year and the actual interest paid in the year will be used as the available funds for repayment, and will be fully used to repay the principal of construction loans (including existing loans) and the interest at this time until the number of years required for full repayment, which is called the maximum repayment capacity loan repayment period from the production period. The fewer the number of years, the stronger the project's ability to repay loans. Repayment of loans for this project will be started after the adoption of investment and the loan will be paid off within 6 years.

11. added benefit

Compared with similar technologies or before the technology was not adopted, this technology generated additional economic benefits of 31.9752 million yuan. The accounting method and calculation process are shown in Table 2. After being officially put into production, the average annual sales revenue is 31.9752 million yuan. See the "Estimation Table of Operating Income, Business Tax, Surcharges and Value-added Tax" for the specific operating income of each year.

12. comprehensive benefits

This technology can process about 12000 cow manure per day, produce about 25000 m³ of biogas per day, and produce 5,000,000 m³ of biogas per year; biogas power generation capacity is 8, 000,000 kWh; waste heat is 3, 600,000 kWh; solid organic fertilizer is 12,800 tons, liquid organic fertilizer is 200,000 tons; annual emission reduction of greenhouse gas CO2 equivalent is 30,000 tons. Ecological and environmental protection: Planters apply large amounts of chemical fertilizers, but the soil is not replenished with organic matter, which affects soil moisture and reduces the quality of agricultural products. The fermented output liquid is subjected to solid-liquid separation, and the biogas slurry is used as liquid fertilizer. After dilution, it is used for irrigation of farmland, orchards, and vegetable fields; the biogas residue is piled and fermented together with the solid manure of livestock and poultry to produce organic fertilizer and return it to the field. It improves the quality of forage and vegetables, which is beneficial to the health of people and animals; prevents farmland from reducing soil fertility due to excessive use of chemical fertilizers, and achieves a virtuous ecological cycle of plant nutrients and maximizes resource utilization. In addition, reducing the pollution of livestock and poultry manure to the water environment and the atmospheric environment can effectively reduce the spread of diseases and effectively curb the occurrence of public health incidents.

13. Level of impact of obstacles on technology transfer

Low obstacle level

14. technology maturity

In July 2017, the National Development and Reform Commission and the Ministry of Agriculture and Rural Affairs issued the "National Work Plan for the Utilization of Livestock and Poultry Manure Resources and the Whole County Promotion Project (2018-2020)", proposing to combine the" National 13th Five-Year Plan for Rural Biogas Development "with a fully quantified energy utilization model that focuses on centralized manure treatment and resource utilization, as well as manure treatment and biogas utilization in large-scale breeding farms. Focusing on the anaerobic fermentation model that pays equal attention to the utilization of biogas, specialized enterprises and large-scale breeding farms are supported to build large-scale biogas projects with an overall volume of more than 500 cubic meters of anaerobic digestion units, taking into account clean energy and organic fertilizer production. Achieve full utilization of the "three swamps". Specifically, it includes raw material collection, storage and pretreatment systems, anaerobic digestion systems, biogas utilization systems, biogas fertilizer utilization systems, and intelligent monitoring systems. Using biogas as a link, by optimizing the overall agricultural resources, the materials in the agricultural ecosystem can be utilized at multiple levels, which is both green and environmentally friendly, with high yield and low consumption, and has great room for development.

15. technical applicability

The application fields of this technology are livestock and poultry breeding, resources and environment, etc., realizing the recycling of limited resources and promoting the recycling development of combined planting and breeding; this technology can realize the resource and energy utilization of livestock and poultry manure, and provide agricultural production. Provide organic fertilizer and increase the proportion of organic fertilizer substitution. For livestock and poultry manure produced by large-scale livestock and poultry farms and individual livestock and poultry farmers, resource and energy utilization can be realized by using this project technology.

16. technical stability

The Mengniu Dairy Aoya Ranch Thermal Power and Fertilizer Cogeneration Project undertaken by Inner Mongolia Mengniu Biomass Energy Co., Ltd., undertaken by the company, has been in operation since 2006 and has been in continuous and stable operation for more than ten years. This shows that the technology is extremely stable.

17. technical safety

These risks can be avoided through effective measures: (1) Regularly check the operating conditions of various devices, and regular flaw inspection of pipelines, valves, and storage tanks is an important measure to discover hidden dangers and prevent accidents. (2) In order to achieve the safety of the device itself, open layout should also be adopted in places where harmful substances may leak, and ventilation devices should be set up in places where combustible or explosive gases are prone to leak to ensure good ventilation and prevent the accumulation of harmful gases.

18. Barriers to technology transfer and promotion

Difficulties in operation and maintenance after technology transfer

19. intellectual property transfer

Patents are independently developed and belong to the company.