PMID- 37413802
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230725
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 458
DP  - 2023 Sep 15
TI  - Mechanochemical remediation of lindane-contaminated soils assisted by CaO: 
      Performance, mechanism and overall assessment.
PG  - 131985
LID - S0304-3894(23)01268-2 [pii]
LID - 10.1016/j.jhazmat.2023.131985 [doi]
AB  - Soil contamination caused by persistent organic pollutants (POPs) has been a 
      worldwide concern for decades. With lindane-contaminated soil as the target, a 
      mechanochemical method assisted by CaO was comprehensively evaluated in terms of 
      its remediation performance, degradation mechanism and overall assessment. The 
      mechanochemical degradation performance of lindane in cinnamon soil or kaolin was 
      determined under different additives, lindane concentrations and milling 
      conditions. 2,2-Diphenyl-1-(2,4,6-trinitrophenyl) hydrazinyl free radical 
      (DPPH(*)) and electron spin resonance (ESR) tests evidenced that the degradation 
      of lindane in soil was caused mainly by the mechanical activation of CaO to 
      produce free electrons (e(-)) and the alkalinity of the generated Ca(OH)(2). 
      Dehydrochlorination or dechlorination by elimination, alkaline hydrolysis, 
      hydrogenolysis and the subsequent carbonization were the main degradation 
      pathways of lindane in soil. The main final products included monochlorobenzene, 
      carbon substances and methane. The mechanochemical method with CaO was proved to 
      also efficiently degrade lindane in three other soils and other 
      hexachlorocyclohexane isomers and POPs in soil. The soil properties and soil 
      toxicity after remediation were assessed. This work presents a relatively clear 
      discussion of various aspects of the mechanochemical remediation of 
      lindane-contaminated soil assisted by CaO.
CI  - Copyright (c) 2023 Elsevier B.V. All rights reserved.
FAU - Zhang, Zhenguo
AU  - Zhang Z
AD  - State Key Laboratory of Water Environment Simulation, School of Environment, 
      Beijing Normal University, Beijing 100875, China.
FAU - Zhou, Zhou
AU  - Zhou Z
AD  - State Key Laboratory of Water Environment Simulation, School of Environment, 
      Beijing Normal University, Beijing 100875, China; North China Power Engineering 
      CO., Ltd of China Power Engineering Group, Beijing 100120, China.
FAU - Liu, Xitao
AU  - Liu X
AD  - State Key Laboratory of Water Environment Simulation, School of Environment, 
      Beijing Normal University, Beijing 100875, China. Electronic address: 
      liuxt@bnu.edu.cn.
FAU - Zhang, Hui
AU  - Zhang H
AD  - State Key Laboratory of Water Environment Simulation, School of Environment, 
      Beijing Normal University, Beijing 100875, China.
FAU - Xu, Hengpu
AU  - Xu H
AD  - State Key Laboratory of Water Environment Simulation, School of Environment, 
      Beijing Normal University, Beijing 100875, China.
FAU - Lin, Chunye
AU  - Lin C
AD  - State Key Laboratory of Water Environment Simulation, School of Environment, 
      Beijing Normal University, Beijing 100875, China.
FAU - He, Mengchang
AU  - He M
AD  - State Key Laboratory of Water Environment Simulation, School of Environment, 
      Beijing Normal University, Beijing 100875, China.
FAU - Ouyang, Wei
AU  - Ouyang W
AD  - State Key Laboratory of Water Environment Simulation, School of Environment, 
      Beijing Normal University, Beijing 100875, China.
LA  - eng
PT  - Journal Article
DEP - 20230701
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
SB  - IM
OTO - NOTNLM
OT  - Ball milling
OT  - Hexachlorocyclohexane
OT  - POPs
OT  - Soil remediation
OT  - Soil toxicity
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- 2023/07/07 01:05
MHDA- 2023/07/07 01:06
CRDT- 2023/07/06 18:04
PHST- 2023/04/19 00:00 [received]
PHST- 2023/06/14 00:00 [revised]
PHST- 2023/06/30 00:00 [accepted]
PHST- 2023/07/07 01:06 [medline]
PHST- 2023/07/07 01:05 [pubmed]
PHST- 2023/07/06 18:04 [entrez]
AID - S0304-3894(23)01268-2 [pii]
AID - 10.1016/j.jhazmat.2023.131985 [doi]
PST - ppublish
SO  - J Hazard Mater. 2023 Sep 15;458:131985. doi: 10.1016/j.jhazmat.2023.131985. Epub 
      2023 Jul 1.