Research Progress on the Effect of Compound Bacterial Agent on Nitrogen and Humus in Sludge Composting Process
In the field of urban sludge composting,the application of compound bacterial agents has received wide attention.The aim of this re-view is to synthesize domestic and international studies to explore the effects of composite bacterial agents on nitrogen conversion and humus syn-thesis in the process of municipal sludge composting,and also discuss the effects of composite bacterial agents on the changes in the content of each component of humus in the process of composting and the related mechanisms,and make an outlook of the future focus of composite bacte-rial agents in the future direction of research in the field of municipal sludge composting.