In the pursuit of harmony between man and nature today, environmental protection has become a hot issue of global concern. With the rapid development of modern agriculture, cattle farms, as an important livestock production base, have increasingly prominent environmental pollution problems, and the treatment of breeding waste gas has become an urgent problem to be solved. This paper discusses the environmental problems brought by cattle farms in depth, and puts forward effective management measures to achieve sustainable development of agriculture.
Biogas on cattle farms is mainly derived from anaerobic fermentation of cow manure, a process in which microorganisms decompose into organic matter, producing methane-biogas (combustible gas). As a greenhouse gas, methane causes the main factor of global warming, its harm is 21 times that of carbon dioxide, it can be seen that its impact on the change of gas can not be ignored. In addition, untreated biogas can produce a foul odor, affecting air quality and negatively affecting the quality of life of nearby residents.
In view of the environmental problems brought by cattle farms, how to manage them scientifically and effectively is particularly important. The biogas treatment process of cattle farms usually includes pretreatment, anaerobic digestion, biogas purification, biogas residue and biogas slurry treatment and utilization. The following governance measures can effectively improve the problem:
1. Establish a sound biogas collection system. By installing a covered or negative pressure biogas collection device, the material tissue emissions brought by biogas can be effectively reduced. The use of biological filter technology, the use of specific biological communities to remove the odor components of biogas, not only can purify the gas, but also can realize the effective use of resources.
2, proper treatment and fermentation, to provide rich organic matter and nutrition for farmland. Biogas residue and biogas slurry from cattle farms are valuable organic fertilizers. Through proper treatment and fermentation, it can promote the growth of crops and improve soil fertility. This can not only reduce the use of fertilizer, but also protect the ecological environment, promote agricultural production and achieve green sustainable development.
3, the need to achieve the effective comprehensive use of resources. Biogas as a renewable energy, its heat is relatively high, can be used for power generation, heating or cooking, can replace traditional fossil fuels. In some areas of China, cattle farms have established biogas power stations, which can not only meet their own energy needs, but also sell excess electricity to the national grid, achieving a win-win situation of economic and environmental benefits.
4, low nitrogen transformation. Raising cattle can lead to the production of nitrogen dioxide, which can also cause respiratory diseases, and by installing denitrification equipment, selective catalytic reduction (SCR) or selective non-catalytic reduction (SNCR) systems can reduce nitrogen oxides into nitrogen and water vapor.
Biogas treatment of cattle farms can not only effectively reduce environmental pollution, but also transform waste into valuable resources to achieve sustainable development of agriculture. Through sustainable design and management, we can effectively enhance economic benefits and social responsibility, and contribute to the construction of a beautiful home of harmonious coexistence between man and nature.
Post time: Apr-25-2024