The pig production inevitably has the problem of sewage contamination of urine. In the situation of paying attention to the environment, promoting harmony between people and society, economic development and the environment, and realizing sustainable economic development, the adoption of new technologies to solve the pig manure is an urgent and pressing issue. It is also the basic premise to realize the sustainable development of pig production. After years of research, Shanghai Wanye Bio-Environmental Protection Technology Co., Ltd. has used its own patented technology â€œbiologically active enzymeâ€ to achieve a new breakthrough in the treatment of livestock and poultry breeding sewage. Technical treatment of pig manure effluent, in a Shanghai city that is very sensitive to such environmental protection, the realization of aquaculture production and production of manure effluent up to standard discharge, after testing, the seven indicators of the discharged effluent far better than the national standard. At present, the technology has attracted the attention and attention of the Shanghai Municipal Science and Technology Commission and the Environmental Protection Bureau. The Shanghai Municipal Agriculture Commission and the Animal Husbandry Office strongly supported and promoted this technology. Our company has successively established Nanxiang Wantou Pig Farm in Jiading District of Shanghai. Caowang Wantou farms and other farms use this technology as an environmental protection project and have been put into operation for 2 to 3 years. They are currently in Xuding Wantou pig farm, Waigang Wantou farm in Jiading District of the city, and Zhuanghang Yidong Ranch in Fengxian District. Farms such as the Henan Pig Breeding Breeding Center are carrying out construction projects for environmental protection, and these projects can be put into use during the year. The technology is as follows: First, the technical principles and features 1, process flow treatment program: After the sewage biodegradation by enzyme activity, enter the anaerobic device for fermentation to remove most of the nitrogen, phosphorus and organic matter, after the fermentation of sewage by Aeration treatment to further remove nitrogen and phosphorus to meet the standard emissions. 2. Mechanism of Action and Technical Advantages (1) Bioactive enzyme mechanism â€œBioactive enzyme (Ammonia-reducing and deodorizing scavenger)â€ is selected from a wide variety of Chinese herbal medicines: Celosia, Polygonum multiflorum, Albizzia julibrissin, Hosonia, Cyperus rotundus, Mulberry leaf 28 Chinese herbal medicines are used, and developed using unique formulating techniques and process routes. It has catalytic degradation effects on ammonia, sulfurized alcohols, hydrogen sulfide, antimony, phenols, and halogens, and can achieve the purpose of ammonia reduction and deodorization. With high efficiency, specificity, mild reaction conditions and so on. Practice has proved that "biologically active enzyme" has a unique effect in the treatment of livestock manure wastewater. (2) Technical advantages The application of "biologically active enzyme" (Ammonia-removal and Deodorizing Decontamination Agent) to treat livestock and poultry excreta waste water has five advantages compared with traditional biological bacterial methods: 1 The treatment effect is good and the operation is stable. "Ammonia-removing and deodorizing scavenging agent" is a Chinese herbal medicine extract, which has stable drug properties, strong degradability, is not affected by various disinfectants and temperature changes, and has strong adaptability to changes in water quality; and can be adjusted according to changes in water quality. Amount, to ensure the sewage treatment effect. Application of "biologically active enzymes (ammonia reduction and deodorizing scavenger)" to control livestock effluent and effluent, the seven indicators of effluent quality are not only far superior to the national emission standards, but also the treated livestock and poultry feces residue can be packaged by simple stacking and fermentation. Take away as organic fertilizer. 2 Low operating costs: â€œBioactive enzyme (Ammonia Deodorizing and Purifying Agent)â€ is used to treat livestock manure wastewater, mainly relying on the catalysis and degradation of pesticides to eliminate harmful substances, without having to consume large amounts of oxygen, and aerate 4-6 hours per day. That is, the energy consumption is greatly reduced. According to the actual application of a number of pig farms in Shanghai, the operating cost per ton of wastewater (including labor, chemicals, and energy consumption) is only about 1.8 yuan, which is more than half that of conventional treatment methods. 3 One-time investment uses less â€œbiologically active enzyme (Ammonia Deodorizing and Purifying Agent)â€ to control livestock and manure effluent. The project occupies less land and costs less. Taking the pig farm in Wantou, Shanghai as the standard measure, a complete pollution control project will be established. The total investment will be 20% more than the investment in similar projects in Shanghai in previous years. 4 The process is simple, easy to operate and maintain. The use of "biologically active enzymes (ammonia reduction and deodorization scavenger)" to control animal husbandry and urine waste water is relatively simple to operate. In the operation of engineering facilities, as long as the water quality and quantity of the discharged sewage are adjusted daily, The amount can be added. The general staff of pig farms, after being trained for one to two weeks, can master the operation essentials and operate and maintain themselves. 5 It has a wide range of application and no secondary pollution. For the wastewater of livestock and poultry farming industry, the pollutants are almost the same, so this technology can be widely applied, and because the â€œbiologically active enzymeâ€ purification agent is configured for Chinese herbal medicine, it is recognized by the authorities. Non-toxic and harmless discharge water will not cause secondary pollution. Second, the comprehensive utilization of sewage According to the conditions of different farms and the environment, the sewage treatment technology can be properly adjusted to achieve the purpose of comprehensive utilization of sewage. (1) Reuse of up-to-standard discharge water The wastewater treated with bio-active enzyme technology can reach the national discharge standard. Up to 80% of standard discharge water after simple disinfection can be reused as pigshed flushing water, which is of great significance in areas with severe water shortages. The water crisis has been eased, and water fees and pollution fees have also been saved. Due to biological activity of enzymes for traditional Chinese medicine preparations, non-toxic, harmful effects, discharge standards can also be used for aquaculture. (2) Comprehensive utilization of treated water For farms with pastures, vegetables, orchards and other crops, the water and fertilizer technology for the treatment of livestock and poultry wastewater can be used to establish aquaculture and planting based on farmland characteristics, area, and fertilizer requirements. Combined with the benign circulation pattern of resource utilization of livestock and poultry sewage, not only does the livestock and poultry wastewater achieve zero emissions, but it also reduces the one-time investment in the wastewater treatment process. Treatment of water due to its rich nitrogen, phosphorus, organic matter and other nutrients needed for crop growth, can be used as soilless cultivation of nutrient solution, the development of pollution-free agricultural products. It has been proved by practice that the fertilizer efficiency of treating water is better than that of purified fertilizer. III. Application Prospects It is understood that of the 14,000 large-scale farms in the country, only about 20% of the sewage has been treated to varying degrees, and 80% of the aquaculture wastewater is still directly discharged into the water, posing a great threat to the quality of the water. On May 8, 2001, the State Environmental Protection Administration promulgated the â€œManagement Method for Pollution Control of Livestock and Poultry Farming,â€ and on December 28 of the same year, issued the â€œDrainage Standards for Livestock and Poultry Farming Industryâ€ (GB18596-2001) requirements in January 2003. It is implemented on the 1st. This shows that it is imperative to promote serialized livestock and poultry breeding wastewater nationwide. Livestock and poultry breeding sewage belongs to the high concentration of organic matter and high ammonia nitrogen wastewater. If following the old road of â€œcontamination after treatmentâ€ will cause two serious consequences: First, the pollution will cause serious damage to the normal aquaculture and natural water ecosystem, such as rich Red tide of seawater caused by eutrophication and large blue-green algae outbreak of lakes; the second is to deal with huge investment in these pollutions with little effect. For instance, Dianchi Lake countries have invested a lot of funds for governance, and no obvious results have been seen. Therefore, in this sense, the intangible economic, social and ecological benefits brought by this technology are enormous. In addition, the agricultural resource utilization of livestock and poultry breeding wastewater has created favorable conditions for improving the surrounding environment of the farm, reducing the risk of environmental pollution, balancing soil nutrient cycling, and producing green organic agricultural products. At the same time, according to 10,000 pig farms, after adopting this technology, the whole site can save about 100 tons of water per day, save about 200 yuan in water fee and pollution control (water price is RMB 1 per ton, sewage treatment fee 1 RMB/ton)) If the treated sewage is used for soilless cultivation, the water fee and fertilizer cost can be saved by about 80,000 yuan/year, and the pig manure can be used for fermentation to obtain organic commodity fertilizer. The annual output is about 2,500 tons per ton. The average income of organic fertilizer is calculated based on 300 yuan, and the profit of 750,000 yuan can be obtained in the whole year. Therefore, the use of this research result in the ecological waste utilization of 10,000 pig farms can increase annual revenue and reduce expenditure by about RMB 1.08 million. This does not include the income from additional plants and aquatic products brought about by the ecological treatment of wastewater, and the added value of economic benefits resulting from the increase in the quality of agricultural products after the use of composite organic fertilizers. In summary, biologically active enzyme wastewater treatment technology can not only effectively curb and reduce agricultural non-point source pollution, improve the ecological environment quality of the surrounding and downstream areas of the farm, and promote the healthy and sustainable development of livestock and poultry husbandry in China; The utilization of pollutants will reduce the production costs of livestock and poultry products, expand the industrial chain, increase market competitiveness, and increase the income of farmers. Therefore, the application and promotion of this technology has very significant economic, social and ecological environmental benefits.
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