Fig. 1From: Enhanced short chain fatty acids production from waste activated sludge conditioning with typical agricultural residues: carbon source composition regulates community functionsEffect of typical AR-conditioning on SCFAs production during different SRT operation stages. The figure shows the concentrations of SCFAs in CS, RS, LES, ABS, and BL group during operation stages of SRT 10 d, SRT 8 d, and SRT 5 d. The OLR of AR-conditioning groups and BL under each stage were also given in the figureBack to article page