Fig. 1From: Roles of extracellular polymeric substances in uranium immobilization by anaerobic sludgeSchematic diagrams for analyses of U, VFAs, N–NO3− and N–NO2− in the supernatant, and U in NaHCO3–HNO3 fractionation of sludge; and U, carbohydrates, proteins and humic substances in EPSBack to article page