We can often see that gas is often produced in swamps or sewage pools. If a match is struck at this time, it can be lit. This is the natural biogas in nature. From a scientific point of view, biogas is an incinerable gas produced by various organic substances through microbial fermentation at suitable temperature and pH value under the condition of blocking air (reduction conditions). Biogas belongs to secondary energy, and is renewable energy. Biogas purification turns waste into treasure, and completes a new pattern of multi format circular industry development.
Biogas purification is a kind of mixed gas produced by the fermentation effect of microorganism under anaerobic conditions. Human and animal feces, straw, sewage and other organic substances are fermented in a closed biogas digester under anaerobic (no oxygen) conditions, and are differentiated and transformed by a variety of complex biogas fermentation microorganisms, and then biogas is produced.
Biogas is a mixture of many gases, and its characteristics are similar to natural gas. In addition to being directly burned for cooking, drying agricultural and sideline products, heating, lighting and gas welding, biogas can also be used as fuel for internal combustion engines and to produce chemical raw materials such as methanol, formalin and carbon tetrachloride. The material liquid and sediment discharged after fermentation by biogas purification equipment are rich in nutrients and can be used as fertilizer and feed.
In order to save the construction cost, we can build a biogas treatment station for the feces in the toilet sewers of urban residential quarters. On the one hand, it can be made into a steel cylinder, on the other hand, it can build a biogas pipeline. The biogas slurry can be made into soilless cultivation materials, and the biogas residue can be directly processed into organic fertilizer.