期刊
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
卷 65, 期 8, 页码 980-986出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10962247.2015.1051605
关键词
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资金
- Natural Science Foundation of China [51278212]
- Fundamental Research Funds for the Central Universities [WUT: 2015IVA026]
The compositions and annual variations of landfill gas (LFG) were studied at two large-scale sites of Chen-Jia-Chong Landfill. Seventy-six wells were built and used for the collection and measurement of LFG. The investigation revealed the similarities and differences of LFG components and variations at two sites with different phases. It was found that ambient temperature and rainfall exhibited strong correlations with LFG components at both sites. Methane (CH4) contents showed excellent correlations with CO2 at both sites. Notable correlations between hydrogen sulfide (H2S) and major components (CH4 and carbon dioxide [CO2]) were only observed in unstable methane phase. Especially, the CH4/CO2 volumetric ratio could act as an excellent indicator for anaerobic reaction stage by judging its phasic variations. The study is beneficial for the efficient operation of LFG collection system and could shed light on gas purification and utilization.Implications: The results in this paper could provide some beneficial information for landfill operators. Especially, the CH4/CO2 volumetric ratio could act as an excellent indicator for anaerobic reaction stage by judging its phasic variations. Moreover, the study could shed light on landfill gas purification and utilization.
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