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首页> 外文会议>European Symposium on Environmental Biotechnology(ESEB 2004); 20040425-20040428; Oostende; BE >Towards aerobic stabilization of old landfills: simulation in lysimeters
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Towards aerobic stabilization of old landfills: simulation in lysimeters

机译：实现旧垃圾填埋场的有氧稳定：溶渗仪模拟

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摘要

The impact of aeration on the reduction of landfill gas emissions and leachates, and biodegradation of deposited material in different stages of conversion of organic substances was investigated. The simulation of aerobic landfill processes was carried out in the bench-scale lysimeters with a fixed bed of household solid waste stabilized under anaerobic conditions. Experimental studies showed that the aerobic waste stabilization was a very quick process. During a month the bed was managed to stabilize, reaching a significant reduction of both nitrogen compounds (N-NH_4~- by around 70%), and easily biodegradable organic substances (ca. 90%). The aeration that started at the methanogenic phase was found to show better bed degradation in a shorter time than started in the acidogenic phase. The reduction of methanogenic potential of the landfill was even faster. The composition of gas at the outlet from the lysimeter changed and after one day already its content was similar to atmospheric air.
机译：研究了曝气对减少垃圾填埋气排放物和渗滤液的影响，以及沉积物在有机物转化的不同阶段的生物降解。有氧垃圾填埋过程的模拟是在台式规模的溶渗仪中进行的，其中固定床具有固定在厌氧条件下的生活垃圾。实验研究表明，好氧废物稳定化是一个非常快速的过程。在一个月的时间内，床层得以稳定，氮化合物（N-NH_4〜-）和易生物降解的有机物质（约90％）均显着减少。发现在产甲烷阶段开始的充气比在产酸阶段开始的充气显示出更好的床降解。垃圾填埋场产甲烷潜力的降低甚至更快。溶渗仪出口处的气体组成发生了变化，一天后，其含量已类似于大气。

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