(A) the development of biogas can effectively increase farmers' income and is an important way to get rid of poverty in rural areas.
To build an 8- 10 cubic meter biogas digester, it will probably take 1500 yuan. Using this biogas digester, farmers can save 250-350 yuan on fuel and electricity, reduce the use of chemical fertilizers and pesticides, save 150-200 yuan, increase the benefit of animal husbandry 150-200 yuan, and increase the benefit of planting industry by 65,438+. The direct benefit brought by a biogas digester is around 800 yuan, and the cost can be recovered in two years. The service life of biogas digesters is calculated as 15 years, and if the cost of biogas digesters is allocated to each year, it will be 100 yuan. In this way, the direct net income brought by farmers using biogas digesters is around 700 yuan every year, and the per capita net income increases 150-200 yuan. If biogas construction is combined with the production of high-yield crops such as vegetables and fruits in pollution-free greenhouses, the benefits will be even greater.
(two) the development of biogas can effectively protect the ecological environment, is an important means to achieve beautiful mountains and rivers.
Building an 8- 10 cubic meter biogas digester can produce 300 cubic meters of biogas per household every year, saving 2.5 tons of fuelwood every year, which is equivalent to growing 0.33 hectares of fuelwood forest every year. Using clean biogas energy can effectively solve the problem of logging in rural areas because of burning wood, protect forest resources, improve agricultural ecological environment and realize beautiful mountains and rivers.
(3) The development of biogas promotes the deep utilization of agricultural resources, and it is the basic project of the new round of agricultural structure adjustment.
The basic goal of the new round of agricultural structural adjustment is to aim at the international and domestic markets, focus on developing marketable green organic food and pollution-free agricultural products, and take the road of efficient ecological agriculture. The development of biogas in rural areas organically combines animals and plants, and organically combines planting and breeding, greatly improving the utilization efficiency of resources. Using biogas slurry and biogas residue as feed can improve the utilization rate of nutrients and energy by 20%; After anaerobic fermentation, nitrogen, phosphorus and potassium nutrients are not lost in feces (biogas slurry and biogas residue) and are converted into active nutrients that can be directly used; Applying biogas fertilizer to farmland can replace part of chemical fertilizers, and spraying biogas slurry can replace part of pesticides, reducing the residues of chemical fertilizers and pesticides in agricultural products; At the same time, because biogas fertilizer is rich in bioactive substances, it can obviously improve the quality of agricultural products. Through the above comprehensive utilization, the total utilization rate of nitrogen reaches 90% and the total utilization rate of energy reaches 80%. In addition, popularizing the energy ecological construction mode with biogas as the link not only effectively improves the utilization efficiency of resources, but also promotes the adjustment of agricultural structure; For example, the "four-in-one" model organically combines biogas digesters, barns, toilets and greenhouses, and promotes the development of aquaculture and vegetable production through biogas slurry feeding, biogas fertilizer application and biogas fertilizer technology; The "pig-biogas-fruit" model combines biogas digesters with orchards and pig houses. By feeding biogas slurry to pigs, spraying biogas slurry on fruit trees and applying biogas fertilizer, it promotes the development of fruit industry and pig industry and changes the agricultural structure mainly based on grain planting. It can be said that the current rural biogas construction is based on the promotion of various biogas eco-economic models. The comprehensive utilization of biogas not only improves the utilization efficiency of resources, but also promotes the development of eco-organic pollution-free agricultural products and promotes the adjustment and upgrading of agricultural industrial structure.
(D) The development of biogas is conducive to improving the quality of agricultural products.
The quality and safety of agricultural products are related to the healthy development of human society, which objectively requires that agricultural products must be pollution-free, low residue and harmless to human body. To meet this requirement, we must reduce the impact and destruction of agricultural production on the ecological environment and minimize the application of foreign substances and energy in agricultural production. Because biomass energy has the advantages of large reserves, pollution-free and renewable, it can just meet this requirement. For example, the demonstration and popularization of the "four-in-one" ecological model technology, on the one hand, provides a large number of high-quality organic fertilizers (biogas slurry and biogas residue) for agricultural production, which can greatly reduce the application amount of chemical fertilizers and pesticides, thus reducing the residues of chemical fertilizers and pesticides in agricultural products; At the same time, biogas fertilizer is rich in bioactive substances, which can obviously improve the quality of agricultural products.
(5) The development of biogas is the carrier to promote the construction of material and spiritual civilization in rural areas.
Farmers run biogas, organically combine biogas digesters with toilet improvement, toilet improvement and kitchen improvement, change the habit of toilet padding and feces moving in the north, and make human and animal feces and domestic sewage flow into biogas digesters for fermentation treatment, which can effectively kill parasite eggs and some germs, basically reach the standard of harmless feces, reduce diseases and protect farmers' health. In particular, the construction of rural energy ecological model with biogas as the link is a project with high scientific and technological content. Because of its remarkable benefits, it can improve farmers' enthusiasm for learning and applying science, make them devote their energy to transforming practical technology into practical productivity, increase the scientific and technological content of agriculture and improve farmers' scientific and technological level. The development of biogas has become the carrier of promoting rural material civilization and spiritual civilization.
(VI) The development of biogas has strengthened the flesh-and-blood ties between the Party, the government and farmers, and is a moral and political project to practice the "Theory of Three Represents".
Clusters of small biogas flames contain more than ten advanced technologies, which can bring thousands of dollars of income to farmers every year, realizing warm and clean homes, efficient courtyard economy and harmless agricultural production; In many places, this gas pool is called "rich pool", "well-off pool" and "rich pool". The masses really feel that the party and the government are doing practical things and doing good things for them, and the relationship between cadres and the masses is becoming increasingly harmonious. The prestige of the government among the masses is enhanced, and its appeal and cohesion are enhanced.