PMID- 33477055
OWN - NLM
STAT- MEDLINE
DCOM- 20210202
LR  - 20210202
IS  - 1879-2456 (Electronic)
IS  - 0956-053X (Linking)
VI  - 121
DP  - 2021 Feb 15
TI  - Antioxidant depletion patterns of high-density polyethylene geomembranes in 
      landfills under different exposure conditions.
PG  - 365-372
LID - S0956-053X(20)30720-0 [pii]
LID - 10.1016/j.wasman.2020.12.025 [doi]
AB  - The service life of high-density polyethylene (HDPE) geomembranes is directly 
      determined by the landfill environment, and the antioxidant depletion stage is 
      the first and most important stage of the HDPE geomembrane aging process. In this 
      study, the antioxidant depletion stage was chosen to investigate the effects of 
      different exposure environments on the HDPE geomembrane lifespan. The antioxidant 
      depletion rate (ADR) and the antioxidant depletion time (ADT) of HDPE 
      geomembranes under various exposure conditions were calculated based on the aging 
      parameters obtained by fitting the collected reported data with the Arrhenius 
      model. Also, the influence of exposure conditions on the HDPE geomembrane 
      performance degradation was analyzed. The results showed that the aging method 
      had the greatest effect on the antioxidant depletion period, while the HDPE 
      geomembrane thickness had the least effect. The ADR sensitivity to 
      brand/material, aging method, leachate components, and exposure medium decreased 
      with increasing temperature; only the sensitivity to thickness showed a slight 
      increasing tendency with increasing temperature. The ADTs of HDPE geomembranes 
      under different exposure conditions ranged from 6 years to 900 years, indicating 
      that the HDPE geomembranes can complete the service time of landfills under 
      reasonable exposure conditions. This study provides a reliable methodological 
      basis for the risk control and life prediction of HDPE geomembranes.
CI  - Copyright (c) 2020 Elsevier Ltd. All rights reserved.
FAU - Li, Weishi
AU  - Li W
AD  - Research Institute of Solid Waste, Chinese Research Academy of Environment 
      Sciences, Beijing 100012, China; College of Water Science, Beijing Normal 
      University, Beijing 100085, China.
FAU - Xu, Ya
AU  - Xu Y
AD  - Research Institute of Solid Waste, Chinese Research Academy of Environment 
      Sciences, Beijing 100012, China. Electronic address: xuya@craes.org.cn.
FAU - Huang, Qifei
AU  - Huang Q
AD  - Research Institute of Solid Waste, Chinese Research Academy of Environment 
      Sciences, Beijing 100012, China; College of Water Science, Beijing Normal 
      University, Beijing 100085, China. Electronic address: huangqf@craes.org.cn.
FAU - Liu, Yuqiang
AU  - Liu Y
AD  - Research Institute of Solid Waste, Chinese Research Academy of Environment 
      Sciences, Beijing 100012, China.
FAU - Liu, Jingcai
AU  - Liu J
AD  - Research Institute of Solid Waste, Chinese Research Academy of Environment 
      Sciences, Beijing 100012, China.
LA  - eng
PT  - Journal Article
DEP - 20210118
PL  - United States
TA  - Waste Manag
JT  - Waste management (New York, N.Y.)
JID - 9884362
RN  - 0 (Antioxidants)
RN  - 9002-88-4 (Polyethylene)
SB  - IM
MH  - Antioxidants
MH  - *Polyethylene
MH  - *Refuse Disposal
MH  - Temperature
MH  - Waste Disposal Facilities
OTO - NOTNLM
OT  - Antioxidant depletion period
OT  - Exposure conditions
OT  - HDPE geomembrane
OT  - Landfill
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- 2021/01/22 06:00
MHDA- 2021/02/03 06:00
CRDT- 2021/01/21 20:18
PHST- 2020/08/08 00:00 [received]
PHST- 2020/10/28 00:00 [revised]
PHST- 2020/12/18 00:00 [accepted]
PHST- 2021/01/22 06:00 [pubmed]
PHST- 2021/02/03 06:00 [medline]
PHST- 2021/01/21 20:18 [entrez]
AID - S0956-053X(20)30720-0 [pii]
AID - 10.1016/j.wasman.2020.12.025 [doi]
PST - ppublish
SO  - Waste Manag. 2021 Feb 15;121:365-372. doi: 10.1016/j.wasman.2020.12.025. Epub 
      2021 Jan 18.