Fig. 3: Community structure succession of MBGS with different wastewater and reactor.

The circos maps of microbial community structure of MBGS at phylum (a) and class (b) level based on the metagenomic sequencing (top 20). The clustering heatmaps of microbial community structure of MBGS at phylum (c) and class (d) level based on the metatranscriptomics sequencing (top 20). Notes: SW1: Synthetic wastewater in a flat-plate bioreactor, RW1: Real municipal wastewater in a flat-plate bioreactor, SW2: Synthetic wastewater in an inclined-plate bioreactor, RW2: Real municipal wastewater in an inclined-plate bioreactor.