Biogas residue combined aerobic composting method

Abstract

The invention discloses a biogas residue combined aerobic composting method which comprises the following steps: 1) regulating biogas residues and aerobic composting auxiliary materials according to the basic physical and chemical properties of the biogas residues and aerobic composting auxiliary materials to obtain a mixed material; and 2) carrying out compost treatment on the mixed material in the step 1) in a composting system to obtain compost. Based on a sensing and monitoring system, automatic optimization of ventilation and oxygen supply in the composting process is realized. The spatial gradient difference of a pile body is judged according to real-time acquired temperature and oxygen data for time and proper stirring, so that uniform gas distribution and fermentation are facilitated. The content of organic matters of the biogas is differentiated, different aerobic composting proportioning schemes are carried out hereby, and finally cyclic utilization of efficiency, energy conservation and emission reduction of the biogas is realized by adopting the intelligent aerobic composting system.

Description

technical field [0001] The invention belongs to the technical field of organic fertilizer preparation, and in particular relates to a combined aerobic composting method of biogas residues. Background technique [0002] With the rapid development of intensive livestock and poultry breeding, livestock and poultry manure has become one of the pollution sources of human living environment, and has been paid close attention by people. In the annual output of livestock and poultry manure in my country, the manure produced by large-scale farming accounts for about 40% of the solid waste. Large amounts of manure, if discharged into the environment without treatment, can cause environmental problems such as foul odors. In addition, livestock manure is also a resource. If it is not used reasonably, it will not only cause secondary pollution to the environment, but also lead to a large amount of waste of organic resources. In addition to livestock and poultry manure, biogas residue p...

AI Technical Summary

Problems solved by technology

In addition, the aerobic composting process advocates forced ventilation, which is likely to cause a large amount of energy consumption, and at the same time blows a large amount of nitrogen-containing and sulfur-containing compounds into the atmosphere, which not only causes air pollution, but also causes nutrient loss, and also inhibits the production of cellulose, etc. Decomposition of Refractory Substances

Images