PMID- 28881326 OWN - NLM STAT- MEDLINE DCOM- 20180607 LR - 20180607 IS - 1095-8630 (Electronic) IS - 0301-4797 (Linking) VI - 204 IP - Pt 1 DP - 2017 Dec 15 TI - Remediation of electronic waste polluted soil using a combination of persulfate oxidation and chemical washing. PG - 170-178 LID - S0301-4797(17)30842-3 [pii] LID - 10.1016/j.jenvman.2017.08.050 [doi] AB - Laboratory experiments were conducted to investigate the efficiency of a simultaneous chemical extraction and oxidation for removing persistent organic pollutants (POPs) and toxic metals from an actual soil polluted by the recycling activity of electronic waste. Various chemicals, including hydroxypropyl-beta-cyclodextrin (HPCD), citric acid (CA) and sodium persulfate (SP) were applied synchronously with Fe(2+) activated oxidation to enhance the co-removal of both types of pollutants. It is found that the addition of HPCD can enhance POPs removal through solubilization of POPs and iron chelation; while the CA-chelated Fe(2+) activation process is effective for extracting metals and degrading residual POPs. Under the optimized reagent conditions, 69.4% Cu, 78.1% Pb, 74.6% Ni, 97.1% polychlorinated biphenyls, 93.8% polycyclic aromatic hydrocarbons, and 96.4% polybrominated diphenylethers were removed after the sequential application of SP-HPCD-Fe(2+) and SP-CA-Fe(2+) processes with a duration of 180 and 240 min, respectively. A high dehalogenation efficiency (84.8% bromine and 86.2% chlorine) is observed, suggesting the low accumulation of halogen-containing organic intermediates. The remediated soil can satisfy the national soil quality standard of China. Collectively, co-contaminated soil can be remediated with reasonable time and capital costs through simultaneous application of persulfate oxidation and chemical extraction. CI - Copyright (c) 2017 Elsevier Ltd. All rights reserved. FAU - Chen, Fu AU - Chen F AD - Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou 221008, China; School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221043, China; School of Mathematical and Geospatial Sciences, Royal Melbourne Institute of Technology University, Melbourne 3000, Australia. FAU - Luo, Zhanbin AU - Luo Z AD - School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221043, China. FAU - Liu, Gangjun AU - Liu G AD - School of Mathematical and Geospatial Sciences, Royal Melbourne Institute of Technology University, Melbourne 3000, Australia. FAU - Yang, Yongjun AU - Yang Y AD - Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou 221008, China; School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221043, China. FAU - Zhang, Shaoliang AU - Zhang S AD - School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221043, China. FAU - Ma, Jing AU - Ma J AD - Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou 221008, China. Electronic address: jingmacumt@163.com. LA - eng PT - Journal Article DEP - 20170904 PL - England TA - J Environ Manage JT - Journal of environmental management JID - 0401664 RN - 0 (Chelating Agents) RN - 0 (Polycyclic Aromatic Hydrocarbons) RN - 0 (Sodium Compounds) RN - 0 (Soil Pollutants) RN - 0 (Sulfates) RN - 2968PHW8QP (Citric Acid) RN - DFC2HB4I0K (Polychlorinated Biphenyls) RN - J49FYF16JE (sodium persulfate) SB - IM MH - Chelating Agents/*chemistry MH - China MH - Citric Acid/*chemistry MH - *Electronic Waste MH - Environmental Restoration and Remediation MH - Oxidation-Reduction MH - Polychlorinated Biphenyls/analysis/*chemistry MH - Polycyclic Aromatic Hydrocarbons MH - Recycling MH - Sodium Compounds/analysis/*chemistry MH - Soil Pollutants/*analysis/chemistry MH - Sulfates/analysis/*chemistry OTO - NOTNLM OT - Activator OT - Citric acid OT - Hydroxypropyl-beta-cyclodextrin OT - Persulfate oxidation EDAT- 2017/09/08 06:00 MHDA- 2018/06/08 06:00 CRDT- 2017/09/08 06:00 PHST- 2017/02/22 00:00 [received] PHST- 2017/08/16 00:00 [revised] PHST- 2017/08/28 00:00 [accepted] PHST- 2017/09/08 06:00 [pubmed] PHST- 2018/06/08 06:00 [medline] PHST- 2017/09/08 06:00 [entrez] AID - S0301-4797(17)30842-3 [pii] AID - 10.1016/j.jenvman.2017.08.050 [doi] PST - ppublish SO - J Environ Manage. 2017 Dec 15;204(Pt 1):170-178. doi: 10.1016/j.jenvman.2017.08.050. Epub 2017 Sep 4.