PMID- 21232931
OWN - NLM
STAT- MEDLINE
DCOM- 20110622
LR  - 20191210
IS  - 1879-2456 (Electronic)
IS  - 0956-053X (Linking)
VI  - 31
IP  - 5
DP  - 2011 May
TI  - Impact of using high-density polyethylene geomembrane layer as landfill 
      intermediate cover on landfill gas extraction.
PG  - 1059-64
LID - 10.1016/j.wasman.2010.12.012 [doi]
AB  - Clay is widely used as a traditional cover material for landfills. As clay 
      becomes increasingly costly and scarce, and it also reduces the storage capacity 
      of landfills, alternative materials with low hydraulic conductivity are employed. 
      In developing countries such as China, landfill gas (LFG) is usually extracted 
      for utilization during filling stage, therefore, the intermediate covering system 
      is an important part in a landfill. In this study, a field test of LFG extraction 
      was implemented under the condition of using high-density polyethylene (HDPE) 
      geomembrane layer as the only intermediate cover on the landfill. Results showed 
      that after welding the HDPE geomembranes together to form a whole airtight layer 
      upon a larger area of landfill, the gas flow in the general pipe increased 25% 
      comparing with the design that the HDPE geomembranes were not welded together, 
      which means that the gas extraction ability improved. However as the heat 
      isolation capacity of the HDPE geomembrane layer is low, the gas generation 
      ability of a shallow landfill is likely to be weakened in cold weather. Although 
      using HDPE geomembrane layer as intermediate cover is acceptable in practice, the 
      management and maintenance of it needs to be investigated in order to guarantee 
      its effective operation for a long term.
CI  - Copyright (c) 2010 Elsevier Ltd. All rights reserved.
FAU - Chen, Zezhi
AU  - Chen Z
AD  - State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, 
      Nanjing 210093, PR China.
FAU - Gong, Huijuan
AU  - Gong H
FAU - Zhang, Mengqun
AU  - Zhang M
FAU - Wu, Weili
AU  - Wu W
FAU - Liu, Yu
AU  - Liu Y
FAU - Feng, Jin
AU  - Feng J
LA  - eng
PT  - Evaluation Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20110112
PL  - United States
TA  - Waste Manag
JT  - Waste management (New York, N.Y.)
JID - 9884362
RN  - 0 (Air Pollutants)
RN  - 9002-88-4 (Polyethylene)
SB  - IM
MH  - Air Pollutants/*analysis
MH  - Air Pollution/*prevention & control/statistics & numerical data
MH  - Polyethylene/*chemistry
MH  - Refuse Disposal/instrumentation/*methods
MH  - Temperature
EDAT- 2011/01/15 06:00
MHDA- 2011/06/23 06:00
CRDT- 2011/01/15 06:00
PHST- 2010/05/24 00:00 [received]
PHST- 2010/11/19 00:00 [revised]
PHST- 2010/12/13 00:00 [accepted]
PHST- 2011/01/15 06:00 [entrez]
PHST- 2011/01/15 06:00 [pubmed]
PHST- 2011/06/23 06:00 [medline]
AID - S0956-053X(10)00630-6 [pii]
AID - 10.1016/j.wasman.2010.12.012 [doi]
PST - ppublish
SO  - Waste Manag. 2011 May;31(5):1059-64. doi: 10.1016/j.wasman.2010.12.012. Epub 2011 
      Jan 12.