Design and testing of a new multi-compartment manure composting reactor
Aiming at the problems of low feeding automation,low composting efficiency and poor product quality of conventional manure compost reactors,a new multi-compartment manure compost reactor with a"continuous feed-reaction-discharge"operation mode was designed and constructed.The design of the reactor was optimized in terms of ventilation unit and heating unit,and the operational performance of the reactor was tested with the toilet feces as the treatment object.The test results showed that after the reactor composting treatment,the manure odor was reduced,the color changed from brownish yellow to brownish brown,the high temperature period of the compost(≥50℃)was maintained above 6d,and the seed germination index of the compost products in different operation stages were 104%,81%and 128%respectively,indicating that the finished compost products had been completely putrefied and rendered harmless.The indicators of total nutrients,organic matter and seed germination index in the compost products met the requirements.