Enhanced sludge dewaterability by ferrate/ferric chloride: The key role of Fe(IV) on the changes of EPS properties
- Resource Type
- Authors
- Wei, Lin; Junmin, Guo; Jie, Zeng; Renglu, Chen; Huu Hao, Ngo; Jun, Nan; Guibai, Li; Jun, Ma; An, Ding
- Source
- Science of The Total Environment. 858:159562
- Subject
- Environmental Engineering
Sewage
Extracellular Polymeric Substance Matrix
Water
Environmental Chemistry
Ferric Compounds
Oxidation-Reduction
Waste Disposal, Fluid
Pollution
Waste Management and Disposal
- Language
- ISSN
- 0048-9697
The complex characteristics of extracellular polymeric substances (EPS) seriously affect the improvement of sludge dewaterability. Ferrate (Fe(VI))/ferric chloride (Fe(III)) was applied through its strong oxidability to effectively enhance sludge dewaterablity by changing the properties of EPS in this study. Results confirmed that water content (WC), specific resistance to filtration (SRF) and capillary suction time (CST) fell from 82.8 %, 9.3 × 10