沼渣好氧堆肥资源化利用技术研究

Effects of Different Conditioners on Aerobic Maturation and Fermentation of Biogas Residue

沼渣作为一种重要的有机废弃物资源,对其进行有效利用、资源化处理具有重要的环保和经济意义。腐熟环节是影响沼渣中有机物质降解与转化的重要环节,基于此,以沼渣为主要材料,设计六个实验组,分别使用尿素、增效剂、秸秆和两种复合菌剂进行搭配,采用室内好氧腐熟发酵的方法,以研究不同调理剂对好氧堆肥的腐熟影响。结果表明,添加了增效剂、秸秆和复合菌剂B的T6实验组堆肥效果最佳,并且通过Mantel检验和网络分析发现,土壤脲酶显著影响堆肥中微生物的多样性,Chryseolinea可能在堆肥过程中参与了氮素的转化。

As an important organic waste resource,the effective utilization of biogas residue for resource utilization has important environmental and economic significance.The maturation process is a crucial stage affecting the degradation and transformation of organic matter in biogas slurry.This study,using biogas slurry as the primary material,designed six experimental groups incorporating urea,enhancers,straw,and two types of composite bacterial agents.Indoor aerobic fermentation was employed to investigate the maturation effects of different conditioners on aerobic composting.Results showed that the T6 experimental group,which included enhancers,straw,and composite bacterial agent B,achieved the best composting effect.Furthermore,Mantel tests and network analysis revealed that soil urease significantly influences microbial diversity in compost,and Chryseolinea may participate in nitrogen transformation during the composting process.These findings provide valuable reference for further research and application in biogas slurry resource utilization.