PMID- 31670242
OWN - NLM
STAT- MEDLINE
DCOM- 20200131
LR  - 20200131
IS  - 1090-2414 (Electronic)
IS  - 0147-6513 (Linking)
VI  - 187
DP  - 2020 Jan 15
TI  - Accelerated screening of arsenic and selenium fractions and bioavailability in 
      fly ash by microwave assistance.
PG  - 109820
LID - S0147-6513(19)31151-0 [pii]
LID - 10.1016/j.ecoenv.2019.109820 [doi]
AB  - Huge amounts of fly ash (FA) can be annually produced in power plants. Fly ash 
      always contains high levels of arsenic (As) and selenium (Se) due to the 
      preconcentration of these two elements during coal combustion process. It would 
      be much concerned to screen their fractions and potential environmental behaviors 
      in fly ash for beneficial use and treatment. Fast and practical methods for this 
      purpose are urgently needed. Two fast and effective microwave-assisted sequential 
      extraction schemes (MASE) were developed for fast screening As and Se fractions 
      in fly ash for the first time. The extraction parameters including microwave 
      irradiation time, temperature and power energy were optimized by comparing the 
      results from MASE and the conventional scheme (Wenzel method). The results 
      indicate that the extraction efficiency of As and Se in various fractions can be 
      significantly accelerated by microwave irradiation. The whole procedure operation 
      time can be significantly reduced from 24.5 h to 44 min by microwave assistance 
      compared with the conventional shaking schemes. The recoveries of As and Se in 
      the various extracted fractions were all above 80% with relative standard 
      deviations (RSDs) below 8%. The developed methods were further confirmed by the 
      validation of the certified reference material GBW08401 and fly ash samples from 
      six power plants. The developed MASE methods are practical and effective for fast 
      screening arsenic and selenium fractions in fly ash samples.
CI  - Copyright (c) 2019. Published by Elsevier Inc.
FAU - He, Kai-Qiang
AU  - He KQ
AD  - Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of 
      Environmental Science & Engineering, North China Electric Power University, 
      Baoding, 071000, China.
FAU - Yuan, Chun-Gang
AU  - Yuan CG
AD  - Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of 
      Environmental Science & Engineering, North China Electric Power University, 
      Baoding, 071000, China; MOE Key Laboratory of Resources and Environmental Systems 
      Optimization, College of Environmental Science and Engineering, North China 
      Electric Power University, Beijing, 102206, China. Electronic address: 
      cgyuan@ncepu.edu.cn.
FAU - Shi, Meng-Dan
AU  - Shi MD
AD  - Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of 
      Environmental Science & Engineering, North China Electric Power University, 
      Baoding, 071000, China.
FAU - Jiang, Yang-Hong
AU  - Jiang YH
AD  - Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of 
      Environmental Science & Engineering, North China Electric Power University, 
      Baoding, 071000, China.
LA  - eng
PT  - Journal Article
DEP - 20191027
PL  - Netherlands
TA  - Ecotoxicol Environ Saf
JT  - Ecotoxicology and environmental safety
JID - 7805381
RN  - 0 (Coal Ash)
RN  - 0 (Environmental Pollutants)
RN  - H6241UJ22B (Selenium)
RN  - N712M78A8G (Arsenic)
SB  - IM
MH  - Arsenic/*analysis
MH  - Biological Availability
MH  - Coal Ash/*analysis
MH  - Environmental Monitoring/*methods
MH  - Environmental Pollutants/*analysis
MH  - *Microwaves
MH  - Power Plants
MH  - Selenium/*analysis
OTO - NOTNLM
OT  - Arsenic
OT  - Fly ash
OT  - Microwave
OT  - Selenium
OT  - Sequential extraction
EDAT- 2019/11/02 06:00
MHDA- 2020/02/01 06:00
CRDT- 2019/11/01 06:00
PHST- 2019/07/20 00:00 [received]
PHST- 2019/10/12 00:00 [revised]
PHST- 2019/10/14 00:00 [accepted]
PHST- 2019/11/02 06:00 [pubmed]
PHST- 2020/02/01 06:00 [medline]
PHST- 2019/11/01 06:00 [entrez]
AID - S0147-6513(19)31151-0 [pii]
AID - 10.1016/j.ecoenv.2019.109820 [doi]
PST - ppublish
SO  - Ecotoxicol Environ Saf. 2020 Jan 15;187:109820. doi: 
      10.1016/j.ecoenv.2019.109820. Epub 2019 Oct 27.