PMID- 31421553 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20200302 LR - 20200302 IS - 1873-3336 (Electronic) IS - 0304-3894 (Linking) VI - 381 DP - 2020 Jan 5 TI - A novel catalytic oxidation process for removing elemental mercury by using diperiodatoargentate(III) in the catalysis of trace ruthenium(III). PG - 120964 LID - S0304-3894(19)30918-5 [pii] LID - 10.1016/j.jhazmat.2019.120964 [doi] AB - A series of experiments were conducted at a bench scale reactor to investigate the effects of key influencing factors on the Hg(0) removal from flue gas using the prepared diperiodatoargentate (III) (DPA) as an oxidant, trace ruthenium(III) as a catalyst, respectively. The experimental results showed that the average Hg(0) removal efficiency reached to 87.5% under the optimal conditions in which the DPA concentration was 1.03 mmol/L, catalyst concentration was 2.0 mumol/L, reaction temperature was 40  degrees C and solution pH was 8.5. Meanwhile, it was found from the experiments that the high concentrations of SO(2) and NO could inhibit the Hg(0) removal due to the competition between Hg(0) and SO(2)/NO, while the lower NO concentration exhibited a slight promotion for Hg(0) removal. The evolutions of DPA(III) and Ru(III) before and after the reaction were characterized by an ultraviolet visible spectrophotometer (UV-vis), from which, the promotional mechanism of Ru(III) on Hg(0) removal was analyzed. The spent solution was analyzed by a cold vapor atomic fluorescence spectrometer (CVAFS), which verified that Hg(0) was oxidized into Hg(2+) by the catalytic system of DPA(III)-Ru(III), and DPA was converted into Ag(+). CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Zhao, Yi AU - Zhao Y AD - MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science & Engineering, North China Electric Power University, Beijing, 102206, PR China; Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China. Electronic address: zhaoyi9515@163.com. FAU - Qi, Meng AU - Qi M AD - MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science & Engineering, North China Electric Power University, Beijing, 102206, PR China; Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China. FAU - Hao, Runlong AU - Hao R AD - MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science & Engineering, North China Electric Power University, Beijing, 102206, PR China; Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China. FAU - Jiang, Jiajun AU - Jiang J AD - MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science & Engineering, North China Electric Power University, Beijing, 102206, PR China; Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China. FAU - Yuan, Bo AU - Yuan B AD - MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science & Engineering, North China Electric Power University, Beijing, 102206, PR China; Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190805 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 SB - IM OTO - NOTNLM OT - Catalytic oxidation OT - Diperiodatoargentate(III) OT - Hg(0) removal OT - Ruthenium(III) EDAT- 2019/08/20 06:00 MHDA- 2019/08/20 06:01 CRDT- 2019/08/18 06:00 PHST- 2019/04/28 00:00 [received] PHST- 2019/07/20 00:00 [revised] PHST- 2019/08/02 00:00 [accepted] PHST- 2019/08/20 06:00 [pubmed] PHST- 2019/08/20 06:01 [medline] PHST- 2019/08/18 06:00 [entrez] AID - S0304-3894(19)30918-5 [pii] AID - 10.1016/j.jhazmat.2019.120964 [doi] PST - ppublish SO - J Hazard Mater. 2020 Jan 5;381:120964. doi: 10.1016/j.jhazmat.2019.120964. Epub 2019 Aug 5.