A comprehensive insight into the combined effects of Fenton's reagent and skeleton builders on sludge deep dewatering performance

- There is strong synergistic effect between Fenton's reagent and skeleton builders.
- Through RSM optimization, water content of sludge cake can be reduced to 49.54%.
- The composite conditioner can make sludge flocs disintegrate into small particles.
- The composite conditioner can promote senescence and death of microorganism.
- The composite conditioner can provide a rigid porous structure in sludge flocs.