"This biogas is pure, there is no black smoke, so that! You see, more than 1,000 students lunch in less than half an hour to do a good job, save time and effort also worry!" Recently, the author came to Hunan Province Taoyuan County Wuling occupation The technical school cafeteria and cafeteria chef Guo Eryuan repeatedly praised. It turns out that this is the benefit of the comprehensive utilization of biogas energy from the black pig farm in Taoyuan County.

Solving Environmental Problems and Resolving Development Bottlenecks

It is understood that Taoyuan County is a standardized breeding breeder county in Hunan Province, and is also a large breeding county, with 3,000 large-scale large-scale breeding households and nearly 40 livestock and poultry breeding communities. The annual production of live pigs is 1.2 million heads and 30 million poultry are sent out. With the expansion of the farming scale, about 11 million tons of livestock and poultry waste are produced each year, which seriously affects the production and life of farmers, and has become a bottleneck restricting the further development of the breeding industry. In order to effectively solve the problem of aquaculture pollution, the county launched a three-year rural environmental improvement project in the county in May 2011 in accordance with the overall deployment of the national rural clean-up project. The rural energy construction and comprehensive utilization project was used as a rural cleaning project. The important links have been grasped, and a working mechanism of “government-led, department-coordination, township and township promotion, and mass participation” has been established, and the first batch of key construction units for state investment has been established. The Taoyuan black pig farm is one of them. The total investment of the project is 4.92 million yuan. It has now been completed and put into use.

According to Li Jianhua, the person in charge of the county's energy office, the comprehensive utilization project of biogas energy refers to the use of large-scale breeding enterprises as a target, and adopts joint investment by the state, local governments, and enterprises to help aquaculture enterprises build large-scale biogas projects and provide gas and fertilizer supply facilities. In combination with the surrounding industries, the biogas, biogas slurry and biogas residue produced are highly efficient, reasonable, and recycled. While solving the pollution problems in the aquaculture industry and promoting the upgrade of the aquaculture industry, new rural industries are cultivated and the environment and economy are realized. And the simultaneous growth of society.

Recycling resources to increase economic efficiency

At the scene, the author saw that a 800 cubic meter large-scale biogas digester and a 200 cubic meter gas tanker are very eye-catching, and the underground biogas pipeline connects the users. According to Luo Zhineng, head of the farm, the pig farm can currently handle 1,788 tons of pigs and chicken manure each year, producing 128,000 cubic meters of biogas, 240 tons of biogas fertilizer, and about 5000 cubic meters of biogas slurry. The farm will supply biogas at a price of 2 yuan per cubic meter to the Wuling Vocational and Technical School with 70 households, a resettlement community, and nearly 2,000 students; the pellet biogas will be supplied to the surrounding area at a price of 200 yuan per ton. 1,000 mu of vegetable base and 500 mu of pollution-free rice demonstration film; biogas liquid is supplied at a total price of 40,000 yuan per year to a surrounding flower and tree nursery base covering 180 acres and 200 acres of vineyards. Luo Zhineng said with a finger and said: "The direct economic benefits of these items are at least 350,000 yuan per year. The benefits of peripheral users are even more obvious."

The person in charge of the Wuling Vocational and Technical School said that their school is far away from the city. If the laying of gas pipelines uses natural gas, the cost is too high. Considering the affordability of a private vocational school, the school’s energy use has been mainly coal and coarse since the school was founded. Shells are the raw material. When it comes to cooking, black smoke and fly ash are flying. The unsuspecting people think that this is a factory. He said: "Because of the harsh environment, students have been greatly affected. Schools have been running for more than 20 years, and the number of students is always about 1,000. Now we have to use clean energy, in addition to the initial installation of 30,000 yuan in addition to opening. In addition, every cubic meter is charged at a standard rate of 2 yuan, and the air supply is provided every year for 9 months. The daily management and pipeline maintenance are performed by professional companies, which are both economical and environmentally friendly, helping the school to solve the old and difficult problems.”

The resettlement community Yao Zhijian told the author: “The use of biogas from black farms is a good deal. Like our family of 3, we have to use at least 1 can of 12 kg bottled liquefied gas for 1 month and it costs 105 yuan; now we can use biogas every month. Save 60 yuan, still do not have to move around, open the valve on the line."

According to the soil and fertilizer experts, biogas slurry and biogas residue are nutrient-rich organic fertilizers that can improve soil structure, fertility, and yield, and produce agricultural products that fully meet the standards of green and organic products, quality and safety. All are guaranteed. Feng Lei, the owner of the vineyard in the county, said that he signed a contract for the use of biogas slurry and biogas residue fertilizers in black pig farms. He only had to pay 16,000 yuan each year. Compared with the purchase of fertilizer from the market, his 200 acres of vineyards can save costs each year. More than 8,000 yuan.

Radiation promotes the upgrading of agricultural industry and promotes the development of rural recycling economy

Thanks to the demonstration of centralized gas supply and comprehensive utilization projects, the construction of clean energy in rural Taoyuan County has developed rapidly. According to Li Jianhua, as of now, the county has invested a total of 23 million yuan to build 48 large and medium-sized biogas projects. Since April 2011, the county has set up a technical service station, and in accordance with the requirements of standardization, it has gradually improved the socialized and professional service system with the county-level service center as its core and the project village as the basis, and built a regional center service. There are 5 stations and 81 rural service stations with over 90% coverage of service outlets; the total number of household biogas digesters in the county has reached 51,600; 11 townships in Qianchi Town have been cultivated, and 167 in Baichi Village, with a biogas occupancy rate of 25.5. %; Annual treatment can handle 1.1 million tons of livestock waste, 210,000 tons of crop straws, reduce carbon dioxide emissions by 270,000 tons, annual average saving of 17,600 tons of standard coal, the equivalent of 155,000 acres of forest in closed mountains, comprehensive utilization of 150,000 mu.

According to reports, through the radiant drive of the Clean Energy Comprehensive Utilization Project, at present, Taoyuan County has established standardized demonstration parks such as 10,000 mu of tea, 10,000 mu of citrus, 100,000 mu of rice, 1 million pigs, and 10 million hens. The simultaneous development of biogas users, excrement disposal, industrial development, energy conservation and emission reduction, environmental protection, and ecological construction; the quality of agricultural products has been rapidly improved and improved. Last year, the county added 31 “three product, one standard” certification, and the total number reached 86. Up to now, the economic benefits of the comprehensive utilization of clean energy in the rural areas of the county have exceeded 140 million yuan, and the average annual increase in user income has been more than 2,000 yuan.

Food Additives

Food additives are compounds or natural substances added to food for the purpose of improving the color, aroma, and taste of food, as well as for the needs of anti-corrosion and processing technology. At present, there are 23 categories of food additives, with more than 2,000 varieties, including acidity regulators, anticaking agents, defoamers, antioxidants, bleaching agents, leavening agents, coloring agents, color retention agents, enzyme preparations, and flavor enhancers, nutritional fortifiers, preservatives, Sweeteners, thickeners, spices, etc.

Erythritol, Sweetener, Pigment, XOS , Carotene, fish oil

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