Introduction:
The sludge composting process is a kind of compost fertilizer manufacturing process, and it can divided into two processes, aerobic fermentation and anaerobic fermentation. The anaerobic fermentation process produces malodors due to the production of metabolites such as methane, hydrogen sulfide, and carbon dioxide. Due to the slow decomposition of organic matter, the fermentation period is as long as 4-6 months, resulting in a large area. In addition, mosquito breeding and sewage turbulence produce serious secondary pollution and is not suitable for large-scale industrial sludge disposal. Most modern processes use aerobic compost, which has a high decomposition rate of organic matter, a short compost cycle, and a small odor. Most modern processes use aerobic compost, which has a high decomposition rate of organic matter, a short compost cycle, and a low odor. However, the traditional pond-type aerobic compost has a long residence time of 15 to 25 days. There is a problem that the floor area is too large, the labor intensity of artificial or mechanical tumbling piles is large, and the degree of evenness is poor, the odor produced during the fermentation period affects the surrounding area. There will be secondary environmental pollution again in the factory. Industrialized mechanical composting is the mainstream of the development of composting technology. It has made certain contributions to the company or the society from the drum type efficient continuous closed composting machine which we developed.