Screening of Composite Microbial Agents for Promoting the Decomposition of Aging Dunnage

To explore the influence of microbial agents on the decomposition of aging dunnage of the fermentation bed,this paper took the aging dunnage as the raw materials,obtained microbial strains of different types through isolation and purification,chose dominant groups to make compound microbial agents,and adopted composting decomposition experiment. The results showed that Bacillus subtilis of different ratios was added,Trichoderma koningii and Thermo actinomycetaceae could promote the decomposition of aging dunnage,especially composite microbial agents( Kc∶Kn∶Gf = 1∶1∶1) had the best effect of decomposition,the high temperature was kept for 13 days. In the end of composting,degradation rate of cellulose,degradation rate of lignin,GI,and C / N were 47. 6%,30. 2%,98. 5%,and 18. 5%,Bacillus coli was not detected.