Pathway and mechanism of nitrogen biotransformation during co-composting of sewage sludge and agriculural waste: Functional enzymes and genes under different concentrations of PVP-AgNPs
High-throughout sequencing was conducted on the MiSeq platform. Operational Taxonomic Units (OTUs) were clustered using Usearch (version 7.0, http://driver5.com/uparse/) based on cutoff of 3% dissimilarity.