Remediation of aresenic-contaminated soils via waste-reclaimed treatment agents: Batch and field studies

Title
Remediation of aresenic-contaminated soils via waste-reclaimed treatment agents: Batch and field studies
Authors
최재영윤현식장민신원식
Keywords
Waste-reclaimed treatment agent; Acid mine drainage sludge; Arsenic; Adsorption; Plant transition
Issue Date
2018-10
Publisher
Minerals engineering
Citation
VOL 127-97
Abstract
1, respectively, and for As(V) were 29.6  1, 27.3  1, and 31.3  1, respectively. The pseudo-second-order equation for the adsorption of As(III) and As(V) fit the kinetics data well. The column study showed that the WRTAs are very effective adsorbents and exhibit  >  80% removal of As from the contaminated soil. The inhibition of As accumulation in plants (i.e., rice, chili, and sesame) by the WRTAs was evaluated and showed a 96% inhibition in As accumulation in chili roots for WRTA2. The suggested WRTAs are promising agents for the removal of As and heavy metals from heavily contaminated agricultural soil.; The potential of three different waste-reclaimed treatment agents (WRTAs) for removing arsenic was evaluated via laboratory-scale batches, column experiments, and field tests. WRTA1 was synthesized using acid mine drainage sludge (AMDS), cement, and sand. WRTA2 and WRTA3 were synthesized by adding fly ash or Ca(OH)2, respectively, to WRTA1. The maximum adsorption capacities of WRTA1, WRTA2, and WRTA3 for As(III) using the Langmuir model were 16.6  mg  g− 1, 14.5  1, and 20.6&#8239
URI
http://pubs.kist.re.kr/handle/201004/67970
ISSN
0892-6875
Appears in Collections:
KIST Publication > Article
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