Correlation of physicochemical properties and sludge dewaterability under chemical conditioning using inorganic coagulants

- Waste sludge conditioned with inorganic coagulants.
- Change in physicochemical properties of sludge floc was investigated.
- Chemical conditioning process included rapid aggregation and floc densification.
- SRF correlated well with the change in content of soluble EPS, LB-EPS and TB-EPS.
- Compression of EPS structure was a major mechanism of dewaterability improvement.