Aerobically digested sludge conditioning by Fe2+/citrate chelated-Fe2+ activated peroxymonosulfate oxidation

• Published in: Chemical engineering journal (Lausanne, Switzerland : 1996) Vol. 400; p. 125954
• Main Authors: Liu, Changgeng, Chen, Xiao’e, Cai, Hongtu
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.11.2020
• Subjects: Advanced oxidation; Aerobically digested sludge; Citrate chelated-Fe2; Dewaterability; Heavy metals; Peroxymonosulfate; Dewaterability; RS; WAS; EPS; EtOH; AeDS; Citrate chelated-Fe2; AOPs; DS; HMs; ADS; TBA; Fe2+-Cit; LB-EPS; Peroxymonosulfate; ICP-OES; PDS; CWR; ICP-AES; Advanced oxidation; CST; WWTPs; TB-EPS; S-EPS; F1; EDTA; F2; Wc; F3; Heavy metals; F4; Cit; Aerobically digested sludge; CW; PMS; Has; VS; TS

[Display omitted] •Fe2+-Cit-PMS was more efficient for improving AeDS dewaterability than Fe2+-PMS.•Citrate introduction strengthened PMS activation in the presence of Fe2+.•Dosages of Fe2+, PMS, and citrate in Fe2+-Cit-PMS system were optimized.•Release of EPS bound water led to the enhanced AeDS d...