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Recyclable zero-valent iron activating peroxymonosulfate synchronously combined with thermal treatment enhances sludge dewaterability by altering physicochemical and biological properties.
Bioresour Technol. 2018 Aug; 262:294-301.BT

Abstract

In this study, zero valent iron (ZVI) activated peroxymonosulfate (PMS) as novel technique (i.e. ZVI-PMS technology) was employed to enhance sludge dewatering. In optimal sludge dewatering conditions of ZVI and KHSO5 dosages, the specific resistance to filtration (SRF) was reduced by 83.6%, which was further decreased to 90.6% after combination of ZVI-PMS with thermal treatment at 50 °C (i.e. ZVI-PMS-T technology). Subsequently, the ESR spectrum and quenching tests demonstrated that OH, rather than SO4-, was predominant radicals in ZVI-PMS conditioning. Thereafter, the variation of physicochemical properties and the distributions and compositions of extracellular polymeric substances (EPS) were further investigated to uncover the influence of these techniques on sludge bulk properties. The results indicated that sludge particles were disintegrated into smaller particles and surface charges were neutralized, sludge flowability were elevated obviously after treatments. In ZVI cycle experiment, the high dewatering efficiency was maintained by ZVI-PMS and ZVI-PMS-T pretreatment.

Authors+Show Affiliations

College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China. Electronic address: dongbowang@hnu.edu.cn.College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China; School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 639798, Singapore.College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China; College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, PR China.College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China; College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, PR China.College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29729607

Citation

Li, Yifu, et al. "Recyclable Zero-valent Iron Activating Peroxymonosulfate Synchronously Combined With Thermal Treatment Enhances Sludge Dewaterability By Altering Physicochemical and Biological Properties." Bioresource Technology, vol. 262, 2018, pp. 294-301.
Li Y, Yuan X, Wang D, et al. Recyclable zero-valent iron activating peroxymonosulfate synchronously combined with thermal treatment enhances sludge dewaterability by altering physicochemical and biological properties. Bioresour Technol. 2018;262:294-301.
Li, Y., Yuan, X., Wang, D., Wang, H., Wu, Z., Jiang, L., Mo, D., Yang, G., Guan, R., & Zeng, G. (2018). Recyclable zero-valent iron activating peroxymonosulfate synchronously combined with thermal treatment enhances sludge dewaterability by altering physicochemical and biological properties. Bioresource Technology, 262, 294-301. https://doi.org/10.1016/j.biortech.2018.04.050
Li Y, et al. Recyclable Zero-valent Iron Activating Peroxymonosulfate Synchronously Combined With Thermal Treatment Enhances Sludge Dewaterability By Altering Physicochemical and Biological Properties. Bioresour Technol. 2018;262:294-301. PubMed PMID: 29729607.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Recyclable zero-valent iron activating peroxymonosulfate synchronously combined with thermal treatment enhances sludge dewaterability by altering physicochemical and biological properties. AU - Li,Yifu, AU - Yuan,Xingzhong, AU - Wang,Dongbo, AU - Wang,Hou, AU - Wu,Zhibin, AU - Jiang,Longbo, AU - Mo,Dan, AU - Yang,Guojing, AU - Guan,Renpeng, AU - Zeng,Guangming, Y1 - 2018/04/21/ PY - 2018/02/23/received PY - 2018/04/09/revised PY - 2018/04/12/accepted PY - 2018/5/8/pubmed PY - 2018/10/12/medline PY - 2018/5/6/entrez KW - Dewaterability KW - Extracellular polymeric substances (EPS) KW - Thermal KW - Waste activated sludge (WAS) KW - Zero valent iron (ZVI)/peroxymonosulfate (PMS) SP - 294 EP - 301 JF - Bioresource technology JO - Bioresour Technol VL - 262 N2 - In this study, zero valent iron (ZVI) activated peroxymonosulfate (PMS) as novel technique (i.e. ZVI-PMS technology) was employed to enhance sludge dewatering. In optimal sludge dewatering conditions of ZVI and KHSO5 dosages, the specific resistance to filtration (SRF) was reduced by 83.6%, which was further decreased to 90.6% after combination of ZVI-PMS with thermal treatment at 50 °C (i.e. ZVI-PMS-T technology). Subsequently, the ESR spectrum and quenching tests demonstrated that OH, rather than SO4-, was predominant radicals in ZVI-PMS conditioning. Thereafter, the variation of physicochemical properties and the distributions and compositions of extracellular polymeric substances (EPS) were further investigated to uncover the influence of these techniques on sludge bulk properties. The results indicated that sludge particles were disintegrated into smaller particles and surface charges were neutralized, sludge flowability were elevated obviously after treatments. In ZVI cycle experiment, the high dewatering efficiency was maintained by ZVI-PMS and ZVI-PMS-T pretreatment. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/29729607/Recyclable_zero_valent_iron_activating_peroxymonosulfate_synchronously_combined_with_thermal_treatment_enhances_sludge_dewaterability_by_altering_physicochemical_and_biological_properties_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0960-8524(18)30563-7 DB - PRIME DP - Unbound Medicine ER -