The prevention and control of pollution in livestock and poultry farming is an important part of the construction of ecological civilization. In order to accelerate the resource utilization of livestock and poultry farming wastes and promote the green development of animal husbandry transformation and upgrading, the municipal government office has successively issued the "Weifang City The Implementation Plan for Resource Utilization and the Opinions on Accelerating the Advancement of the Transformation and Upgrading of Animal Husbandry in Green Development are based on the ideas of source reduction, process control, and end use, focusing on large animal husbandry counties and large-scale farms, and focusing on fertilizer and energy. Main utilization direction, optimize industrial layout, allocate pollution control facilities, cultivate treatment subjects, strengthen scientific and technological support, strictly enforce laws and regulations, improve policy support, improve the system and system, strengthen performance evaluation, comprehensively promote the utilization of livestock and poultry breeding waste, accelerate Construct a new pattern of sustainable development that combines farming and animal husbandry with a combination of farming and animal husbandry.

1. Strengthen technical guidance and improve pollution control level. Through radio, television, newspapers and other news media and the "Weifang Animal Husbandry Information" website, "Weifang Animal Husbandry" magazine, "Animal Husbandry Information" briefings, etc., we will vigorously promote new technologies and good experiences in the harmless treatment of livestock and poultry wastes. By means of training courses, on-site technical guidance, and the issuance of clear papers, etc., ecological farming technology will be sent to farmers. Organize the technical personnel in the system and the person in charge of some large-scale farms to learn ecological circular breeding technology in Dongying, Linyi, Qingdao, Shanghai, Guangzhou, Qinghai, Shijiazhuang and other places. We carefully summarized the typical treatment and utilization of livestock and poultry manure in our city, and compiled the "Weifang Municipal Livestock and Poultry Farm Pollution Prevention and Control Manual" and the "Technical Models and Typical Compilation of Livestock and Poultry Manure Treatment and Utilization". At the same time, relying on relevant universities, scientific research institutes and animal husbandry enterprises jointly established the Weifang City Agricultural and Animal Husbandry Byproducts Harmless Treatment and Resource Utilization Industrial Technology Innovation Strategic Alliance and Academician Workstation, and organized relevant enterprises to develop and explore environmentally friendly enzymes-ammonia odor Environmental purification, water purification enzymes-black and odorous water purification, composite microbial feed additives and other new technologies, new facilities, new models have been tested and demonstrated in Hanting District and Zhucheng, which effectively improves the treatment and utilization of livestock waste in our city Level.

2. Strive for policy support and increase the rate of construction of pollution control facilities. Actively strive for higher-level policy pollution control projects, and Gaomi, Qingzhou, Changle, Changyi, Zhucheng, and Hanting are included in the pilot counties of the modern animal husbandry development platform construction project; Zhucheng has been approved to promote large-scale animal husbandry and breeding, and integrate the whole county system The pilot project will strive for 45 million yuan from the central government's financial support. Starting from this year, the central government invested 15 million yuan every year for three consecutive years; the pilot county project declared by Anqiu City for the utilization of livestock and poultry manure resources has passed the final review by the Ministry of Agriculture and the Ministry of Finance. The central government ’s support fund is 36.5 million yuan. Implemented for 2 years. Through the above measures, up to now, the proportion of waste disposal facilities of large-scale livestock and poultry farms (communities) in our city is 94.68%. 82% of the mission goals identified in the Notice on the Implementation Plan for the Utilization of Chemicals (Lu Zheng Ban Fa [2017] No. 68).

3. Promote the five major projects and improve the utilization of resources. Adhere to the organic unification of supply and ecological protection, and solidly promote the construction of the "five major projects" in the restricted and suitable areas.

(1) It is the standardization and expansion project of the farm. To implement the main responsibility of livestock and poultry farms, all scale farms must formulate a fecal waste treatment plan, must construct fecal waste treatment facilities, and must ensure effective treatment and utilization of fecal waste. The large-scale livestock and poultry farms with poor manure treatment facilities, unreasonable processes, and low utilization levels of manure resources are standardized and upgraded. According to the principle of "filling and filling up", implement "one control, two divisions, three preventions and two matching" "One Basic" (12321) transformation and construction.

(2) It is a project to promote the integration of cultivation and breeding. According to the distribution of resources, environmental carrying capacity and industrial characteristics, a reasonable layout is adopted to form an industrial structure in which industries are integrated with each other and material multi-level circulation. Reasonably develop ecological animal husbandry combining cultivation and breeding in suitable areas.

(3) It is an organic fertilizer processing project. Scientific planning and layout, in areas with high breeding density, guide social capital investment, and explore the establishment of regional organic fertilizer processing centers through government support, enterprise-led, and market-oriented operations. At the same time, breeding enterprises are encouraged to produce organic fertilizer on-site and form a new industrial chain for processing, marketing and utilization of organic fertilizer.

(4) Construction of biogas projects. Promote the construction of energy, large-scale and specialized biogas projects that use livestock and poultry manure as the main raw materials, and build biogas projects based on local conditions and on-site measures.

(5) It is a biotechnology promotion project. Planning and construction of biotechnology R & D and promotion bases, demonstration and breeding farms for biotechnology promotion and application, comprehensive promotion of advanced biotechnology, microbial fermentation and degradation technology, and supporting facilities and equipment for manure fermentation, and exploring biotechnology governance models. Through the use of feed addition, indoor and outdoor spraying, compost addition, biological fermentation bed and other utilization modes, biotechnology is used in feed production, manure treatment, and environmental treatment, effectively improving feed conversion rate, effectively controlling disease and medication , Effectively suppress the generation and discharge of malodorous gas, effectively improve the utilization of livestock and poultry manure resources, and achieve environmental purification and cleaner production.

At present, there are a total of 4,967 large-scale farms in the city, and 4676 farms equipped with manure treatment facilities. The matching rate of manure treatment facilities is 94.14%, and the utilization rate of manure treatment is 88%. After continuous exploration and practice, various places have gradually formed a distinctive feature of the feces treatment and utilization model that is suitable for promotion.

1. The "fermentation bed culture" model represented by Changle Wufu

Shandong Wufu Agricultural Technology Co., Ltd. is a black pig-based hog breeding enterprise in Changle County. It mainly uses washer materials such as straw, sawdust, rice husks, and peanut husks, plus natural salt, microorganisms, nutrients and other substances to form a fermentation bed. Bio-fermentation technology is used to decompose pig manure, maintain piggery temperature, and avoid the spread of germs. Fermentation bed pigs do not need to clean and discharge pig manure, nor will they form a large amount of waste water from the flushing circle, so that no waste or excretion is discharged from the pig farm, basically achieving the "zero discharge" standard of pollutants, greatly reducing It has brought about environmental pollution from the pig industry.

2. "Professional company + scientific research institution + cooperative + model household" model represented by Ao Nuo in Shouguang City

Shouguang Aonuo Ecological Energy Technology Development Co., Ltd. uses a large-scale biogas project as an ecological hub, and externally provides third-party property-based custody services. The upstream docks with commercial pig breeding communities, and the downstream serves greenhouse vegetable growers. For biogas power generation and fertilizer processing, in addition to system return and aerobic spraying, biogas slurry is mainly developed into green fruit and vegetable formula fertilizers such as eggplant, cucumber, tomato, leek, grape, etc. "One Township, One Product, Green Agro-ecological Planting Circle" of "Combination, Agriculture and Animal Husbandry Cycle".

3. The "Utilization Model of Sewage Resources" represented by Anqiu Decheng

The Anqiudcheng Pig Breeding Cooperative has constructed sewage treatment, biogas slurry purification and dry manure accumulation and fermentation plants to carry out rain and sewage separation, manure dry and wet separation and four-stage sedimentation of sewage. Build a liquid fertilizer production system that utilizes natural microorganisms and mineral elements to fully ferment livestock manure and urine to make liquid fertilizer to solve the problems of soil pollution, livestock wastewater and malodor. One is to use active water to reduce source displacement. The ordinary water is activated and used as drinking water for the pigs. With the automatic water dispenser water-saving equipment, it reduces the production of manure, ammonia odor and insect pests. The drinking water utilization rate of pigs basically reaches 100%, which can save water very much Considerable, greatly reducing the problems of arthritis and other health diseases caused by excessive humidity in the pen. The second is the production of liquid organic fertilizer from sewage purification. Through the natural inherent purification technology of natural microorganisms, chemical nutrients and independent nutrient microorganisms are used to quickly remove malodors; the use of microbial catalysts to put minerals into high-speed fermentation devices, microbial fermentation of animal manure and urine, into rich in microorganisms and minerals Liquid manure enters its own planting and breeding combined ecological garden and returns to the field. It can effectively remove odor and stickiness, and the deodorization rate is more than 90%. The heat generated during the fermentation process can effectively kill pathogenic bacteria and insect eggs in the feces. , Can produce high-quality liquid fertilizer containing nitrogen, phosphorus, potassium and other elements. The third is the recycling of biogas slurry backwashing pen. After four-stage sedimentation treatment, the sewage in the farm can continue to be flushed back to the piggery to realize the utilization of organic waste.

4. “Combination of cultivation and breeding” represented by Shandong Heli

Shandong Heli Animal Husbandry Co., Ltd. develops the utilization of livestock and poultry manure by building biogas power generation, water and fertilizer integration facilities. One is the separation of rain and pollution. The rain and sewage channels are separated in the site, and the sewage channel is built according to the mountain trend, and the sewage enters the sewage tank. The cow dung is pushed into the sewage channel by the dung cleaning machine, and enters the sedimentation tank with the aid of the circulating pump at the high end. The second is the biogas slurry going up the mountain. A sedimentation tank is built, and wastes such as manure and sewage automatically enter the fermentation system through a dedicated sewage channel for sedimentation and fermentation, and are transported through an integrated water and fertilizer pipeline. The third is biogas power generation. Build biological power generation equipment and use biogas to generate electricity. Most of the site uses electricity to achieve self-sufficiency. Fourth, the biogas residue is returned to the field. The fermented biogas slurry and biogas residue are used for soil and fertilizer cultivation by means of sprinkling irrigation, spraying, drip irrigation and other methods of the automatic irrigation system. It is rich in organic nutrients, kills parasitic microorganisms, fertilizes the land without using chemical fertilizers, and nourishes fruit trees, alfalfa, etc., and realizes the harmless treatment and resource utilization of manure.

V. "Centralized treatment of manure and discharge of sewage in compliance with standards" represented by Gaomi Nanyang and Changle Zhonghui

Gaomi Nanyang Biological Fertilizer Co., Ltd. Bio-fertilizer company mainly collects livestock and poultry manure from its own farms as raw materials to produce organic fertilizer. Relying on the advantages of agricultural development resources in our city, combined with the construction of ecological parks, we will vigorously promote ecological circular agriculture. The company has reached a cooperation agreement with large-scale planting bases and ecological parks. The company sells organic fertilizers and liquid fertilizers at cooperative prices to supply bases and parks for use. The use will effectively improve the soil activity of the soil in the base and the park, improve the quality of agricultural products, and especially enhance the taste of fresh fruits and vegetables.

Changle Zhonghui advanced treatment of aquaculture wastewater by anaerobic fermentation + aerobic treatment, etc., can reach the farmland irrigation standard COD200 below, used to irrigate the surrounding trees and farmland.

In 2018, our city plans to organize the existing 4967 large-scale livestock and poultry farms to carry out comprehensive transformation and upgrade; cultivate 50 "livestock-manure (biogas residue, biogas slurry)-forest (grain, fruit, vegetables)" breeding cycle Economic model; establishment of 10 regional organic fertilizer processing centers; construction of 50 biogas project projects; cultivation of 500 biotechnology demonstration farms for manure treatment. Taking the five major projects as a starting point and taking advanced models as examples, we will raise awareness of the importance of pollution prevention and control for livestock and poultry farming in all sectors of society, enhance environmental awareness, and mobilize all sectors of society to participate in pollution prevention.

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