Biodegradability of municipal solid waste components in laboratory-scale landfills
Biodegradability of municipal solid waste components in laboratory-scale landfills
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DOI：
10.1021/es9606788
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发表时间：
1997-03-01
影响因子：
11.4
通讯作者：
Barlaz, MA
中科院分区：
文献类型：
--
作者：
Eleazer, WE;Odle, WS;Barlaz, MA
本研究的目的是通过测量甲烷产量、纤维素和半纤维素分解程度以及渗滤液毒性来表征城市垃圾成分的厌氧生物降解性。在 2 L 反应器中进行四次测试，以获得最大产量。测得的草、树叶、树枝、食物垃圾、涂布纸、旧新闻纸、旧瓦楞纸箱和办公用纸的甲烷产量分别为 144.4、30.6、62.6、300.7、84.4、74.3、152.3 和 217.3 mL CH4/干克。尽管作为总趋势，甲烷产量随着纤维素加半纤维素含量的增加而增加，但混杂因素妨碍建立定量关系。同样，特定成分的木质化程度也不能很好地预测生物降解程度。通过厌氧毒性测定，除食物垃圾外，垃圾成分分解产生的渗滤液没有毒性。
The objective of this research was to characterize the anaerobic biodegradability of municipal refuse components by measuring methane yields, the extent of cellulose and hemicellulose decomposition, and leachate toxicity. Tests were conducted in quadruplicate in 2-L reactors operated to obtain maximum yields. Measured methane yields for grass, leaves, branches, food waste, coated paper, old newsprint, old corrugated containers, and office paper were 144.4, 30.6, 62.6, 300.7, 84.4, 74.3, 152.3, and 217.3 mL of CH4/dry g, respectively. Although, as a general trend, the methane yield increased as the cellulose plus hemicellulose content increased, confounding factors precluded establishing a quantitative relationship. Similarly, the degree of lignification of a particular component was not a good predictor of the extent of biodegradation. With the exception of food waste, leachate from the decomposition of refuse components was not toxic as measured by using an anaerobic toxicity assay.