With the development of biogas science and technology and the promotion of rural household biogas, there are various types of household biogas digesters according to local requirements, air temperature, and geological conditions. However, in general, the biogas digesters and dome biogas digesters are generally composed of hydraulic biogas digesters and floating biogas digesters. The four basic types of semi-plastic biogas digesters and tank biogas digesters are formed. At present, the biogas pool that is matched with the "One Pool, Three Reforms" is generally a hydraulic biogas digester. The rural household biogas digesters promoted by the city are mainly national standard shaped pools, namely: concrete cast-in-place pools and prefabricated prefabricated biogas digesters, which are generally water-filled biogas digesters at room temperature. Must adhere to the “four-in-one†principle “four-in-one†means that the digester pool is connected with the livestock shed, toilets, and solar greenhouses so that the human and animal dung will continue to enter the digester pool, ensuring normal gas production and continuous gas production, and facilitating the management of excreta and improving the environment. Health, biogas slurry can be easily transported to the greenhouse vegetable field for fertilizer use. The benefits of building a "three-in-one" biogas digester. Biogas digesters, pig pens, and toilets are all three together. It is an important experience created by the majority of the people in our province. Its main advantages are: First, humans and livestock manure can be automatically infused into the pool for closed fermentation, which saves manpower in the transfer of manure pools, and is beneficial for the effective management of human and animal manure. Second, fresh fermented raw materials are introduced daily. The pool is conducive to increase the rate of gas production. Third, the biogas digester should be built in the shed or near the house. The management is convenient. The gas pipeline has a short distance, the pressure is balanced, and the utility efficiency is high. Fourth, it is beneficial to the winter season. Keep the pool temperature. A biogas digester of 6 to 8 cubic meters can basically meet the daily energy use of farmers, saving nearly 2,500 kilograms of firewood each year, which is equivalent to 3,335 square meters (5 acres) of closing mountains and forests. After its gas production, the biogas slurry and the biogas residue are completely decomposed, high-efficiency and harmless organic fertilizers, which can improve the quality of agricultural products. Therefore, vigorously developing biogas projects can better protect forest resources, consolidate the achievements of returning farmland to forests and grasslands, and closing up mountains for afforestation, and create a good ecological living environment, which is also an important way to promote agricultural income. Strengthening the biogas industry, promoting rural economic development, increasing farmers' income, safeguarding the vital interests of the majority of farmers in building pools, and promoting the sustainable and healthy development of the rural energy industry in Guangshui are the scientific knowledge that our agricultural technicians should vigorously promote. China Extract Powder For Use As Dietary Supplement Extract Powder, Extract Powder Manufacturer Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.apipepdites.com