15 a) 4s圆 g1.T hA2.S271s Fig. 1. Taxonomic diversity (upto genus level) associated with both (A2_S27_assembly & AKR012_contigs) activated sludge metagenome. 1158 S. Yadav, A. Kapley / Science of the Total Environment 692 (2019) 1155–1164