Anaerobic and aerobic coupling totally-closed humic acid organic fertilizer composting device

Abstract

The invention discloses an anaerobic and aerobic coupling totally-closed humic acid organic fertilizer composting device which comprises a composting bin, a feeding and discharging port is formed in one end of the composting bin, a turning and throwing mechanism is arranged in the composting bin and comprises a rotating shaft and a plurality of groups of turning and throwing teeth which are distributed around the circumferential direction of the toothed plate rotating shaft, the rotating shaft can be driven by a rotating motor to rotate, the turning and throwing mechanism is erected in a movable mounting frame, a movable mounting frame can move back and forth between the two ends of the composting bin, the composting bin is connected with an oxygen pump and can supplement oxygen into the bin, and a biogas outlet and an ammonia nitrogen outlet are formed in the composting bin. According to the totally-enclosed composting tank, 100% ammonia nitrogen recovery can be realized, the humic acid content of the product is increased by utilizing an anaerobic environment, and meanwhile, the totally-enclosed composting tank can realize total recovery of biogas energy.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to an anaerobic-aerobic coupling fully enclosed humic acid organic fertilizer composting device. Background technique [0002] There are more than 5 billion tons of agricultural waste in my country every year. Under the policy background of vigorously promoting the resource utilization of agricultural waste, solid waste is effectively treated through composting and liquid waste through anaerobic fermentation, and realizes Return waste scientifically. [0003] At present, solid waste composting includes two methods: aerobic and anaerobic. Aerobic composting achieves rapid decomposition of organic matter and inactivation of pathogenic bacteria, weeds, and seed organisms through aerobic microorganisms and high temperature of the compost, but there are shortcomings such as incomplete degradation of organic matter and nutrient loss caused by ammonia nitrogen ...

AI Technical Summary

Problems solved by technology

Aerobic composting realizes the rapid decomposition of organic matter and the inactivation of pathogenic bacteria, weeds, and seed organisms through aerobic microorganisms and high temperature of the compost, but there are shortcomings such as incomplete degradation of organic matter and nutrient loss caused by ammonia nitrogen volatilization

Anaerobic composting has the advantages of complete degradation of organic matter and high content of humic acid in compost products, but the sterilization effect is not as good as that of aerobic composting, and the composting time is longer

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