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首页> 外文期刊>Environmental engineering and management journal >BIOFILTER BEHAVIOUR IN CONTAMINATED SOILS BY UNTREATED PAPER SLUDGE: CRITICAL ISSUES AND DURABILITY
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BIOFILTER BEHAVIOUR IN CONTAMINATED SOILS BY UNTREATED PAPER SLUDGE: CRITICAL ISSUES AND DURABILITY

机译：未处理的纸浆污泥在污染土壤中的生物滤池行为：关键问题和耐用性

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The presence of uncontrolled biogas in old or run out landfills and in recovered sites with untreated paper sludge can lead to diffused methane emissions towards atmosphere during years. Actually biocover, biowindow and biofilter systems have been developed to intercept and bioconvert methane into CO_2, to reduce the emissions of greenhouse gases towards atmosphere contributing to a reduction of the environmental impact. Furthermore this fraction of CO_2 has not to be accounted according to Kyoto Protocol, because it derives from organic matter. Bioconversion is performed by microrganisms, often contained in soils or in tailored composts. Standards for compost to be used as biocover are defined in Austrian legislation. This work describes a case history, of recovered site with untreated paper sludge which caused uncontrolled biogas production. A specific bioremediation treatment was performed, with also the use of biofilters in order to intercept and bioconvert methane. These interventions must last for years and therefore it is necessary to verify that the reduction of the methane concentration and emission is kept down to acceptable levels over time, in an efficient way. The results of 4 years monitoring of biofilters are reported. The aim of this work is to adopt techniques for monitoring and control in the long run biofilter behaviour with reference to bioconversion. A correct monitoring system can also suggest the need for any "charge", even timely.
机译：多年以来，在旧的或用完的垃圾填埋场中以及未经处理的纸泥产生的回收地点中，存在不受控制的沼气会导致甲烷向大气的扩散扩散。实际上，已经开发了生物覆盖，生物窗口和生物过滤器系统来拦截甲烷并将其生物转化为CO_2，以减少温室气体向大气的排放，从而有助于减少对环境的影响。此外，根据《京都议定书》，这部分CO_2不必计算，因为它来自有机物。生物转化是通过微生物来完成的，通常包含在土壤或定制的堆肥中。奥地利立法中定义了用作生物覆盖物的堆肥标准。这项工作描述了一个案例历史，即未经处理的纸污泥在回收地点造成了沼气生产不受控制。进行了特定的生物修复处理，还使用了生物滤池以截留和生物转化甲烷。这些干预措施必须持续数年，因此有必要验证随着时间的推移，甲烷的浓度和排放量的降低必须有效地保持在可接受的水平上。报告了对生物滤池进行4年监测的结果。这项工作的目的是采用与生物转化有关的长期监测和控制生物滤池行为的技术。正确的监控系统还可以建议需要进行任何“收费”，甚至及时。

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