Behaviors of dewaterability and heavy metals of waste activated sludge conditioned by heat-activated peroxymonosulfate oxidation

• Published in: Chemical papers Vol. 74; no. 2; pp. 641 - 650
• Main Authors: Huang, Zaichun, Liu, Changgeng, Zhu, Xuejun, Xiang, Guoqi, Zeng, Chenghua, Zhong, Yuquan
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.02.2020; Springer Nature B.V
• Subjects: Activated sludge; Biochemistry; Biotechnology; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Conditioning; Heavy metals; Industrial Chemistry/Chemical Engineering; Leaching; Materials Science; Medicinal Chemistry; Moisture content; Original Paper; Oxidation; Sludge; Solubilization; Suction; Toxicity; Heat/peroxymonosulfate; Waste activated sludge; Advanced oxidation; Dewatering; Heavy metals

In this work, heat-activated peroxymonosulfate (heat-PMS) oxidation was used to condition waste activated sludge. The results showed that the optimal temperature and PMS dosage for sludge dewatering were 75 °C and 150 mg/g-volatile solids (VS), and the addition of rice husk (100–400 mg/g-VS) was fav...