In order to solve the environmental problems caused by livestock and poultry manure and odor, Laixi City vigorously developed ecological farming, actively promoted the scale and standardized production of livestock husbandry, implemented unified planning, and clearly defined livestock and poultry breeding areas according to functional zoning. The banned breeding area, the controlled breeding area and the humidity breeding area were divided, and the rational distribution of livestock and poultry breeding was promoted to effectively control pollution and improve the quality of rural environment.
Reasonable layout effectively controls pollution
The reporter was informed that Lacey City is a national livestock breeding city (county). In 2011, the city had a total of 90,100 heads of dairy cattle. The number of pigs slaughtered was 930,000 and the number of broilers was 120 million. The total output value of animal husbandry was 3.78 billion yuan, accounting for agriculture. The proportion of the total output value reached 47.5%. Pollution in poultry farming is one of the major environmental problems facing the countryside. In order to solve the environmental problems caused by livestock and poultry manure, sewage, and odors, Laixi City vigorously developed ecological farming and actively promoted the scale and standardized production of animal husbandry. The unified planning was implemented during the “Eleventh Five-Year Planâ€, according to the functional zoning, The poultry breeding area has clearly stipulated that the banned breeding area, the controlled breeding area and the humidity breeding area have been divided, and the rational distribution of livestock and poultry breeding has been promoted to effectively control pollution and improve the quality of rural environment.
It is understood that since 2011, Lacey City has incorporated the control measures for the total amount of pollutants in livestock and poultry into the “Twelfth Five-Year Plan†for economic and social development in this administrative region, formulating emission reduction plans and implementing them strictly. By 2014, 224 large-scale livestock and poultry husbandry enterprises in Laixi City will be provided with supporting construction of solid waste and wastewater storage and treatment facilities or adopting an eco-environmental culture model to implement waste resource utilization.
2014 fully realized ecological pig breeding
“Laixi chicken-raising enterprises will complete the construction of solid waste and wastewater storage facilities by the end of 2012.†The person in charge of the Environmental Protection Bureau of Laixi City said that the implementation of the dry excrement method in the day-to-day operation will take two months. A small amount of manure water produced in a chicken house is collected and deposited in a built-up effluent pool via a dedicated channel, and all the local farmers use a tanker to transport it out of the site for irrigation of forest land, orchards and farmland. With regard to chicken manure treatment, it is mainly purchased and transported directly by local farmers as organic manure, applied to farmland, orchards and vegetable plots. Chicken manure is used as a raw material to better turn waste into treasure.
In accordance with the size of pig-breeding enterprises, large and medium-sized enterprises will implement the comprehensive utilization of manure-free disposal. “For example, some companies have established two sets of wastewater treatment facilities that harmlessly treat aquaculture wastewater, and the biogas produced has fully met the needs of heating pig farms, heating boilers and winter piggery, and biogas residue and biogas slurry are used as fertilizers for fast growing. Forests, food crops and vegetables are planted with good results,†said the person in charge. In addition, efforts are being made to promote ecological farming and achieve zero emissions of manure. The ecological farms have no odor, no accumulated manure, no sewage efflux, and almost no flying flies. Laixi City has completely changed the traditional pig-breeding model by introducing the ecological pig breeding technology of the fermentation bed, so that the excrement of live pigs is absorbed and fermented by the plant pods laid, and is quickly decomposed. The company digged out and sold it as a high-quality fertilizer and replaced it with new ones, realizing breakthroughs in zero discharge of pollutants, good product quality, labor saving, water saving, and saving materials. By 2014, all the large-scale enterprises in Lacey will be built. Into an ecological pig farm.
Ecological animal husbandry forms a virtuous circle
According to the person in charge, the cattle-raising company in Lacey adopts technical guidance and financial support measures to guide the large-scale farms to carry out manure, harmless disposal of sewage, and comprehensive utilization, and the establishment of excrement, sewage fermentation biogas production, biogas use Production, life fuel, biogas slurry, biogas residue as a circular economy model of comprehensive utilization of crop fertilizers.
“Some companies have built 1,000 cubic meters of large-scale biogas digesters in the farms and built 200 acres of organic vegetable bases in the same period.†The person in charge said that this led to the formation of “milk cows - straw - excrement biogas - organic fertilizer - organic Vegetable "a virtuous circle of ecological pastoral estates. It is understood that by the end of 2011, a total of 82 methane tanks with a capacity of 30 cubic meters or more had been constructed in the large-scale breeding farms in Lacey City.
“At the same time, we also vigorously developed the raising outside the village to achieve the traditional garden breeding to the community to raise the area, the transformation of large-scale breeding farms.†Relevant person in charge told reporters, through the implementation of the withdrawal into the area, in accordance with the "intensive feeding, household management The requirements of milking and milking were unified, and 12 cattle-breeding dairy farming communities were established, attracting 179 cattle-raising households to the development of the community, so that problems of decentralized farming, unregulated management, and environmental pollution were effectively solved.
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