突尼斯斯法克斯垃圾填埋场的废物:性质、组成和处理

Yosr Smaoui, Jalel Bouzid
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引用次数: 3

摘要

填埋是突尼斯为确保可持续固体废物管理而采取的战略。Sfax控制的垃圾填埋场是已经建立的技术垃圾填埋场之一。本研究介绍了在Sfax控制的垃圾填埋场中掩埋的生活垃圾的主要类别和特征,以及产生的渗滤液的理化和微生物特性。介绍了在站级应用的渗滤液处理工艺,并讨论了它们的性能。废物表征结果显示,潜在可生物降解的发酵部分占主导地位(69%)。废物的粒度分布表明,粒径在20 ~ 100mm之间的平均馏分占主导地位。所产生的渗滤液的特征表明存在难以生物降解的高有机负荷,高含量的氨态氮和顽固性化合物,如酚类。我们还注意到一些微量污染物、矿物质和某些病原体的存在。渗滤液的毒性已通过微毒性和植物毒性试验得到证实。对渗滤液处理厂运行的监测显示,处理的数量有很大的变化,这解释了储存池的填充物。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Déchets du centre d’enfouissement technique de Sfax (Tunisie) : nature, composition et traitement
Landfilling is the strategy adopted in Tunisia to ensure sustainable solid waste management. The Sfax controlled landfill is one of the technical landfills that have been set up. This study presents the main categories and characteristics of household waste buried in the Sfax controlled landfill, as well as the physic-chemical and micro-biological properties of the generated leachates. The leachates treatment processes applied at the station level are presented and their performance is discussed. The results of the waste characterization show the dominance of the potentially biodegradable fermentable fraction (69%). The distribution by particle size of the waste shows a dominance of the average fraction whose particle size is between 20 and 100mm. The characterization of leachates generated shows the presence of a high organic load that is difficult to biodegrade, a high content of ammoniacal nitrogen and recalcitrant compounds such as phenols. We also note the presence of some micro-pollutants minerals and certain pathogens. The toxic nature of leachates has been demonstrated by microtoxicity and phytotoxicity tests. The monitoring of the operation of the leachates treatment plant shows a significant variability of the quantities treated, which explains the filling of the storage ponds.
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