The fate of carbon compounds in the landfill disposal of organic matter
The fate of carbon compounds in the landfill disposal of organic matter
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DOI：
10.1002/jctb.503300121
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发表时间：
2007-05
影响因子：
3.4
通讯作者：
J. Rees
中科院分区：
文献类型：
--
作者：
J. Rees
应管理含有生活垃圾的填埋场，以便在水文地质条件允许时优化甲烷生产。在大型场地上，这将既经济上有利可图，又符合环保要求，因为不受控制的污染将减少到最低限度，而且场地可以尽快回收。垃圾填埋场微生物学一直局限于公共卫生方面，显然，需要进一步的微生物学研究，以优化碳化合物的降解。人们对合成聚合物的命运知之甚少。考虑它们是否构成延迟潜在甲烷生成的储层是有趣的。与以前的想法相反，得出的结论是，没有必要添加氮和磷源。垃圾密度和水含量的相互作用被确定为一个主要因素，必须加以控制，以优化甲烷生成。这种厌氧生物反应器的高固体含量和反应性，加上垃圾的导热性差，使垃圾填埋场能够产生和维持高温。垃圾预处理，放置方法和水管理技术在控制和刺激垃圾发酵的作用进行了讨论。
Landfill sites containing domestic refuse should be managed so as to optimise methane production when hydrogeological conditions permit. On large sites this would be both economically profitable and environmentally desirable as uncontrolled pollution would be minimised and sites could be reclaimed as quickly as possible. Landfill microbiology has been confined to public health aspects, and clearly, further microbiological studies are required to optimise the degradation of carbon compounds. Knowledge of the fate of synthetic polymers is poor. It is interesting to consider whether they constitute a reservoir of delayed-potential methane generation. Contrary to previous ideas it is concluded that there is no requirement for added nitrogen and phosphorus sources. The interaction of refuse density and water content is identified as a major factor which must be controlled to optimise methane generation. The high solids content and reactivity of this anaerobic bioreactor coupled with the poor thermal conductivity of refuse enables the landfill to generate and sustain high temperatures. The roles of refuse pretreatment, placement methods and water management techniques in the control and stimulation of refuse fermentation are also discussed.