Thiosulfate-assisted Fe 2+ /persulfate pretreatment effectively alleviating iron dose and enhancing biotransformation of waste activated sludge into high-value liquid products

• Published in: Chemosphere (Oxford) Vol. 303; no. Pt 2; p. 135106
• Main Authors: Cheng, Boyi, Jiang, Wei, Zhang, Da, Lin, Qingshan, Ma, Jie, Zan, Feixiang, Wang, Zongping, Chen, Guanghao, Guo, Gang
• Format: Journal Article
• Language: English
• Published: England 25.05.2022
• Subjects: Short-chain fatty acids; Waste activated sludge; Acidogenic fermentation; Thiosulfate; Fe(2+)/persulfate

Ferrous-based acidogenic fermentation (AF) as a means to treat waste activated sludge (WAS) and produce short-chain fatty acids (SCFAs) has drawn increasing attention, but the massive amount of "iron sludge" that it produces not only significantly increases costs and difficulty of disposal...