PMID- 27996634
OWN - NLM
STAT- MEDLINE
DCOM- 20170714
LR  - 20181202
IS  - 2162-2906 (Electronic)
IS  - 1096-2247 (Linking)
VI  - 67
IP  - 4
DP  - 2017 Apr
TI  - A comparison of CH(4), N(2)O and CO(2) emissions from three different cover types 
      in a municipal solid waste landfill.
PG  - 507-515
LID - 10.1080/10962247.2016.1268547 [doi]
AB  - High-density polyethylene (HDPE) membranes are commonly used as a cover component 
      in sanitary landfills, although only limited evaluations of its effect on 
      greenhouse gas (GHG) emissions have been completed. In this study, field GHG 
      emission were investigated at the Dongbu landfill, using three different cover 
      systems: HDPE covering; no covering, on the working face; and a novel 
      material-Oreezyme Waste Cover (OWC) material as a trial material. Results showed 
      that the HDPE membrane achieved a high CH(4) retention, 99.8% (CH(4) mean flux of 
      12 mg C m(-2) h(-1)) compared with the air-permeable OWC surface (CH4 mean flux 
      of 5933 mg C m(-2) h(-1)) of the same landfill age. Fresh waste at the working 
      face emitted a large fraction of N(2)O, with average fluxes of 10 mg N m(-2) 
      h(-2), while N(2)O emissions were small at both the HDPE and the OWC sections. At 
      the OWC section, CH(4) emissions were elevated under high air temperatures but 
      decreased as landfill age increased. N(2)O emissions from the working face had a 
      significant negative correlation with air temperature, with peak values in 
      winter. A massive presence of CO(2) was observed at both the working face and the 
      OWC sections. Most importantly, the annual GHG emissions were 4.9 Gg yr(-1) in 
      CO(2) equivalents for the landfill site, of which the OWC-covered section 
      contributed the most CH(4) (41.9%), while the working face contributed the most 
      N(2)O (97.2%). HDPE membrane is therefore, a recommended cover material for GHG 
      control. IMPLICATIONS: Monitoring of GHG emissions at three different cover types 
      in a municipal solid waste landfill during a 1-year period showed that the 
      working face was a hotspot of N(2)O, which should draw attention. High CH(4) 
      fluxes occurred on the permeable surface covering a 1- to 2-year-old landfill. In 
      contrast, the high-density polyethylene (HDPE) membrane achieved high CH(4) 
      retention, and therefore is a recommended cover material for GHG control.
FAU - Wang, Xiaojun
AU  - Wang X
AD  - a CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban 
      Environment, Chinese Academy of Sciences , Xiamen , People's Republic of China.
FAU - Jia, Mingsheng
AU  - Jia M
AD  - a CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban 
      Environment, Chinese Academy of Sciences , Xiamen , People's Republic of China.
FAU - Lin, Xiangyu
AU  - Lin X
AD  - a CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban 
      Environment, Chinese Academy of Sciences , Xiamen , People's Republic of China.
FAU - Xu, Ying
AU  - Xu Y
AD  - a CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban 
      Environment, Chinese Academy of Sciences , Xiamen , People's Republic of China.
FAU - Ye, Xin
AU  - Ye X
AD  - a CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban 
      Environment, Chinese Academy of Sciences , Xiamen , People's Republic of China.
FAU - Kao, Chih Ming
AU  - Kao CM
AD  - b Institute of Environmental Engineering , National Sun Yat-Sen University , 
      Kaohsiung , Taiwan, Republic of China.
FAU - Chen, Shaohua
AU  - Chen S
AD  - a CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban 
      Environment, Chinese Academy of Sciences , Xiamen , People's Republic of China.
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - United States
TA  - J Air Waste Manag Assoc
JT  - Journal of the Air & Waste Management Association (1995)
JID - 9503111
RN  - 0 (Air Pollutants)
RN  - 0 (Solid Waste)
RN  - 142M471B3J (Carbon Dioxide)
RN  - 9002-88-4 (Polyethylene)
RN  - K50XQU1029 (Nitrous Oxide)
RN  - OP0UW79H66 (Methane)
SB  - IM
MH  - Air Pollutants/*analysis
MH  - Carbon Dioxide/*analysis
MH  - Greenhouse Effect
MH  - Methane/*analysis
MH  - Nitrous Oxide/*analysis
MH  - Polyethylene
MH  - Seasons
MH  - Solid Waste
MH  - *Waste Disposal Facilities
EDAT- 2016/12/21 06:00
MHDA- 2017/07/15 06:00
CRDT- 2016/12/21 06:00
PHST- 2016/12/21 06:00 [pubmed]
PHST- 2017/07/15 06:00 [medline]
PHST- 2016/12/21 06:00 [entrez]
AID - 10.1080/10962247.2016.1268547 [doi]
PST - ppublish
SO  - J Air Waste Manag Assoc. 2017 Apr;67(4):507-515. doi: 
      10.1080/10962247.2016.1268547.