PMID- 37394193
OWN - NLM
STAT- MEDLINE
DCOM- 20230809
LR  - 20230809
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 338
DP  - 2023 Oct
TI  - Coal gangue-based magnetic porous material for simultaneous remediation of 
      arsenic and cadmium in contaminated soils: Performance and mechanisms.
PG  - 139380
LID - S0045-6535(23)01647-8 [pii]
LID - 10.1016/j.chemosphere.2023.139380 [doi]
AB  - Remediation of arsenic (As) and cadmium (Cd) co-contaminated soil is a challenge 
      in environmental remediation. In this study, coal gangue-based magnetic porous 
      material (MPCG) was designed for simultaneous immobilization of As and Cd in 
      contaminated soil. After the incubation experiment, the effects of CG and MPCG on 
      the availability and fractions of As and Cd and the related microbial functional 
      genes were analyzed to explore the potential remediation mechanisms of MPCG for 
      As and Cd in contaminated soil. The results showed that the stabilization effect 
      of MPCG on As and Cd was significantly higher than that of coal gangue. It 
      reduced the available As and Cd by 17.94-29.81% and 14.22-30.41%, respectively, 
      and transformed unstable As/Cd to stable. The remediation mechanisms of MPCG on 
      As included adsorption, oxidation, complexation and 
      precipitation/co-precipitation. Meanwhile, the remediation mechanisms of MPCG for 
      Cd included adsorption, ion exchange, complexation and precipitation. In 
      addition, MPCG increases the abundance of sulfate-reducing bacteria (dsrA) by 
      43.39-381.28%, which can promote sulfate reduction. The sulfide can precipitate 
      with As and Cd to reduce the availability of As and Cd in soil. Thus, MPCG is a 
      promising amendment for achieving the remediation of As and Cd co-contaminated 
      soil.
CI  - Copyright (c) 2023. Published by Elsevier Ltd.
FAU - Chen, Min
AU  - Chen M
AD  - School of Earth and Environment, Anhui University of Science and Technology, 
      Huainan, 232001, China; Research Institute of Zhejiang University-Taizhou, 
      Zhejiang University, Taizhou, China.
FAU - Zhou, Yuzhi
AU  - Zhou Y
AD  - School of Earth and Environment, Anhui University of Science and Technology, 
      Huainan, 232001, China; Anhui Engineering Laboratory for Comprehensive 
      Utilization of Water and Soil Resources & Ecological Protection in Mining Area 
      with High Groundwater Level, Huainan, 232001, China.
FAU - Sun, Yuan
AU  - Sun Y
AD  - School of Earth and Environment, Anhui University of Science and Technology, 
      Huainan, 232001, China; Research Institute of Zhejiang University-Taizhou, 
      Zhejiang University, Taizhou, China.
FAU - Chen, Xiaoyang
AU  - Chen X
AD  - School of Earth and Environment, Anhui University of Science and Technology, 
      Huainan, 232001, China; Anhui Engineering Laboratory for Comprehensive 
      Utilization of Water and Soil Resources & Ecological Protection in Mining Area 
      with High Groundwater Level, Huainan, 232001, China. Electronic address: 
      chenxy@aust.edu.cn.
FAU - Yuan, Liang
AU  - Yuan L
AD  - State Key Laboratory of Mining Response and Disaster Prevention and Control in 
      Deep Coal Mines, Anhui University of Science and Technology, Huainan, 232001, 
      China. Electronic address: yuanl_1960@sina.com.
LA  - eng
PT  - Journal Article
DEP - 20230630
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 00BH33GNGH (Cadmium)
RN  - N712M78A8G (Arsenic)
RN  - 0 (Soil)
RN  - 0 (Sulfates)
RN  - 0 (Soil Pollutants)
SB  - IM
MH  - Cadmium/analysis
MH  - *Arsenic/analysis
MH  - Porosity
MH  - *Environmental Restoration and Remediation
MH  - Soil
MH  - Magnetic Phenomena
MH  - Sulfates
MH  - *Soil Pollutants/analysis
OTO - NOTNLM
OT  - Coal-based solid waste
OT  - Functional genes
OT  - Oxidation
OT  - Soil remediation
OT  - Toxic elements
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2023/07/03 00:41
MHDA- 2023/08/09 06:43
CRDT- 2023/07/02 19:28
PHST- 2023/04/19 00:00 [received]
PHST- 2023/06/27 00:00 [revised]
PHST- 2023/06/29 00:00 [accepted]
PHST- 2023/08/09 06:43 [medline]
PHST- 2023/07/03 00:41 [pubmed]
PHST- 2023/07/02 19:28 [entrez]
AID - S0045-6535(23)01647-8 [pii]
AID - 10.1016/j.chemosphere.2023.139380 [doi]
PST - ppublish
SO  - Chemosphere. 2023 Oct;338:139380. doi: 10.1016/j.chemosphere.2023.139380. Epub 
      2023 Jun 30.