PMID- 29627646 OWN - NLM STAT- MEDLINE DCOM- 20181031 LR - 20181031 IS - 1095-8630 (Electronic) IS - 0301-4797 (Linking) VI - 217 DP - 2018 Jul 1 TI - Effective treatment of oily scum via catalytic wet persulfate oxidation process activated by Fe(2). PG - 411-415 LID - S0301-4797(18)30368-2 [pii] LID - 10.1016/j.jenvman.2018.03.129 [doi] AB - Oily scum, a hazardous by-product of petroleum industry, need to be deposed urgently to reduce environmental risks. This paper introduces catalytic wet persulfate oxidation (CWPO) process in the treatment of oily scum to realize risk relief. Under the activation of heat and Fe(2+), persulfate (PS) was decomposed into sulfate radicals and hydroxyl radicals, which played a major role on the degradation of petroleum hydrocarbons. The effects of wet air oxidation (WAO) and CWPO process on the degradation of oily scum were compared. In CWPO process, the total petroleum hydrocarbons (TPHs) content of oily scum was decreased from 92.63% to 16.75%, which was still up to 70.19% in WAO process. The degradation rate of TPHs in CWPO process was about 3.38 times higher than that in WAO process. The great performance of CWPO process was also confirmed by elemental analysis, which indicated that the C and H contents of oily scum were reduced significantly by CWPO process. These results indicated that CWPO process has high potential on the degradation of oily scum for environmental protection. CI - Copyright (c) 2018 Elsevier Ltd. All rights reserved. FAU - Yuan, Xingzhong AU - Yuan X AD - 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: yxz@hnu.edu.cn. FAU - Guan, Renpeng AU - Guan R AD - 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. FAU - Wu, Zhibin AU - Wu Z AD - 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. FAU - Jiang, Longbo AU - Jiang L AD - 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. FAU - Li, Yifu AU - Li Y AD - 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. FAU - Chen, Xiaohong AU - Chen X AD - Mobile E-business 2011 Collaborative Innovation Center of Hunan Province, Hunan University of Commerce, Changsha 410205, PR China. FAU - Zeng, Guangming AU - Zeng G AD - 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: zgming@hnu.edu.cn. LA - eng PT - Journal Article DEP - 20180405 PL - England TA - J Environ Manage JT - Journal of environmental management JID - 0401664 RN - 0 (Hydrocarbons) RN - 0 (Petroleum) RN - 3352-57-6 (Hydroxyl Radical) SB - IM MH - Catalysis MH - Hydrocarbons/*chemistry MH - Hydroxyl Radical MH - Oxidation-Reduction MH - *Petroleum OTO - NOTNLM OT - Catalytic wet persulfate oxidation OT - Oily scum OT - Petroleum hydrocarbons OT - Treatment EDAT- 2018/04/09 06:00 MHDA- 2018/11/01 06:00 CRDT- 2018/04/09 06:00 PHST- 2017/12/20 00:00 [received] PHST- 2018/03/02 00:00 [revised] PHST- 2018/03/31 00:00 [accepted] PHST- 2018/04/09 06:00 [pubmed] PHST- 2018/11/01 06:00 [medline] PHST- 2018/04/09 06:00 [entrez] AID - S0301-4797(18)30368-2 [pii] AID - 10.1016/j.jenvman.2018.03.129 [doi] PST - ppublish SO - J Environ Manage. 2018 Jul 1;217:411-415. doi: 10.1016/j.jenvman.2018.03.129. Epub 2018 Apr 5.