There is a "power station" in the pig farm

"3000 yuan was invested to build a 10 cubic meter biogas digester for rural households, which usually depends on it for lighting and cooking. Not only the yard is clean, but more than 800 yuan can be saved on photoelectricity and gas charges every year. " A few days ago, the author came to the home of Wang Jianyang, a villager of Xixinan Village, Ya Pigeon Township, Lincheng County, Hebei Province, and saw a clean gas stove on the ceramic tile stove. As soon as the owner turned on the switch, a blue flame jumped out. After a while, a pot of boiling water creaked.

"since the use of biogas at home, we no longer have to suffer from smoke and fire. Stir-frying, cooking and boiling water are all right. The environment at home is clean and hygienic. " Hostess Wei Xiuhong said happily.

Wang Jianyang benefited from the rural household biogas digester construction project of the "one pool, three reforms" model actively promoted in the county, which not only turned rural production and domestic waste into energy and realized the recycling of resources, but also solved the problems of environmental pollution and sustainable development of large aquaculture households in the process of development.

When the author walks into the pig farm of Liujiahui Longxin Pig Farmers' Professional Cooperative in Shicheng City and Town, the first thing to enter the field of vision is not rows of pig houses, but a tall blue tank.

"that blue jar is a biogas tank!" Liu Jianlin, director of the field, told me that he had been raising pigs for so many years, and his business had never bewildered him, but how to deal with the hills of pig manure every day gave him a headache. In the past, he paid workers to transport pig manure to sparsely populated remote areas, not to mention polluting the environment. Since the biogas digester was built in the village, the obnoxious pig manure has become a "hot commodity", allowing him to use clean energy and solve years of problems.

According to reports, the pilot promotion of large-scale biogas comprehensive clean energy project in Hebei Province was implemented in the farm in 2010. The project has a total investment of more than 2 million yuan and is equipped with equipment for the production of biogas, biogas slurry, biogas residue and power generation. The pig manure sewage of the farm is collected and fermented to form biogas, which in turn passes through the gas generator to form electricity. The equipment can treat about 10 tons of pig farm manure, 16 tons of sewage, nearly 5000 tons of biogas slurry, 1300 tons of biogas residue fertilizer and 170000 kilowatts of power generation per day. At present, the farm stores 1800 pigs, producing more than 10 tons of pig manure and pig urine every day, and the manure produced by the farm can be treated in time. The resulting biogas can be used for lighting, cooking and power generation; biogas residue and biogas slurry, as organic fertilizer, promote the development of pollution-free green vegetables, fruits and grain production, which not only protects the environment, but also increases the added value of agricultural products; pollution-free grain also promotes the production of pollution-free pork, forming a circular economy industrial chain.

"the organ is in that huge blue tank, a kind of fiberglass biogas tank made of new materials, and it is also one of the countless fiberglass biogas tanks in the country, and the excrement produced by pigs every day is discharged into that big jar in time." Liu Jianlin said with a smile, "now we are talking about environmental protection everywhere, and we should also raise pigs according to the mode of environmental protection. This large-scale biogas comprehensive clean energy project has not only brought considerable economic benefits to our cooperative, but also benefited the surrounding villagers. The resulting biogas slurry, biogas residue, biogas and electricity not only supply the needs of the farms, but also supply to the surrounding farmers, driving the surrounding farmers to become rich together. "