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Enhancing dewaterability of waste activated sludge by combined oxidative conditioning process with zero-valent iron and peroxymonosulfate.
Water Sci Technol. 2017 Nov; 76(9-10):2427-2433.WS

Abstract

The enhancement of sludge dewaterability is of great importance for facilitating the sludge disposal during the operation of wastewater treatment plants. In this study, a novel oxidative conditioning approach was applied to enhance the dewaterability of waste activated sludge by the combination of zero-valent iron (ZVI) and peroxymonosulfate (PMS). It was found that the dewaterability of sludge was significantly improved after the addition of ZVI (0-4 g/g TSS) (TSS: total suspended solids) and PMS (0-1 g/g TSS). The optimal addition amount of ZVI and PMS was 0.25 g/g TSS and 0.1 g/g TSS, respectively, under which the capillary suction time of the sludge was reduced by approximately 50%. The decomposition of sludge flocs could contribute to the improved sludge dewaterability. Economic analysis demonstrated that the proposed conditioning process with ZVI and PMS was more economical than the ZVI + peroxydisulfate and the traditional Fenton conditioning processes.

Authors+Show Affiliations

Shenzhen Engineering Laboratory of Microalgal Bioenergy, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China.Shenzhen Engineering Laboratory of Microalgal Bioenergy, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China.Shenzhen Engineering Laboratory of Microalgal Bioenergy, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China.State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin 150001, China.Shenzhen Engineering Laboratory of Microalgal Bioenergy, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China.Shenzhen Engineering Laboratory of Microalgal Bioenergy, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China.State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin 150001, China.Department of Microbiology and Plant Biology, University of Oklahoma, Norman, Oklahoma 73019, USA.State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin 150001, China.Griffith School of Engineering, Griffith University, Nathan Campus, Brisbane, QLD 4111, Australia and Centre for Clean Environment and Energy, Griffith University, Gold Coast Campus, Gold Coast, QLD 4222, Australia E-mail: qilin.wang@griffith.edu.au.

Pub Type(s)

Evaluation Study
Journal Article

Language

eng

PubMed ID

29144300

Citation

Zhou, Xu, et al. "Enhancing Dewaterability of Waste Activated Sludge By Combined Oxidative Conditioning Process With Zero-valent Iron and Peroxymonosulfate." Water Science and Technology : a Journal of the International Association On Water Pollution Research, vol. 76, no. 9-10, 2017, pp. 2427-2433.
Zhou X, Jin W, Chen H, et al. Enhancing dewaterability of waste activated sludge by combined oxidative conditioning process with zero-valent iron and peroxymonosulfate. Water Sci Technol. 2017;76(9-10):2427-2433.
Zhou, X., Jin, W., Chen, H., Chen, C., Han, S., Tu, R., Wei, W., Gao, S. H., Xie, G. J., & Wang, Q. (2017). Enhancing dewaterability of waste activated sludge by combined oxidative conditioning process with zero-valent iron and peroxymonosulfate. Water Science and Technology : a Journal of the International Association On Water Pollution Research, 76(9-10), 2427-2433. https://doi.org/10.2166/wst.2017.408
Zhou X, et al. Enhancing Dewaterability of Waste Activated Sludge By Combined Oxidative Conditioning Process With Zero-valent Iron and Peroxymonosulfate. Water Sci Technol. 2017;76(9-10):2427-2433. PubMed PMID: 29144300.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Enhancing dewaterability of waste activated sludge by combined oxidative conditioning process with zero-valent iron and peroxymonosulfate. AU - Zhou,Xu, AU - Jin,Wenbiao, AU - Chen,Hongyi, AU - Chen,Chuan, AU - Han,Songfang, AU - Tu,Renjie, AU - Wei,Wei, AU - Gao,Shu-Hong, AU - Xie,Guo-Jun, AU - Wang,Qilin, PY - 2017/11/17/entrez PY - 2017/11/17/pubmed PY - 2018/5/10/medline SP - 2427 EP - 2433 JF - Water science and technology : a journal of the International Association on Water Pollution Research JO - Water Sci Technol VL - 76 IS - 9-10 N2 - The enhancement of sludge dewaterability is of great importance for facilitating the sludge disposal during the operation of wastewater treatment plants. In this study, a novel oxidative conditioning approach was applied to enhance the dewaterability of waste activated sludge by the combination of zero-valent iron (ZVI) and peroxymonosulfate (PMS). It was found that the dewaterability of sludge was significantly improved after the addition of ZVI (0-4 g/g TSS) (TSS: total suspended solids) and PMS (0-1 g/g TSS). The optimal addition amount of ZVI and PMS was 0.25 g/g TSS and 0.1 g/g TSS, respectively, under which the capillary suction time of the sludge was reduced by approximately 50%. The decomposition of sludge flocs could contribute to the improved sludge dewaterability. Economic analysis demonstrated that the proposed conditioning process with ZVI and PMS was more economical than the ZVI + peroxydisulfate and the traditional Fenton conditioning processes. SN - 0273-1223 UR - https://www.unboundmedicine.com/medline/citation/29144300/Enhancing_dewaterability_of_waste_activated_sludge_by_combined_oxidative_conditioning_process_with_zero_valent_iron_and_peroxymonosulfate_ L2 - https://iwaponline.com/wst/article-lookup/doi/10.2166/wst.2017.408 DB - PRIME DP - Unbound Medicine ER -