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填埋已成为我国城市生活垃圾的一种主要处理方式。对填埋过程中产生的垃圾渗滤液进行分析评价并进行处理,已成为防止其造成二次污染的一个必要环节。基于对洛阳市盘龙冢垃圾填埋场渗滤液处理处置的必要性和紧迫性的分析,采用单项污染指数法对其水质进行分析评价,对其污染现状进行分析和讨论,并对其处理现状进行了深入调查。 相似文献
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漯河市垃圾渗滤液处理厂采用＂混凝沉淀-A/O-MBR-NF/RO＂工艺处理垃圾渗滤液。该工艺日处理200m3垃圾渗滤液,出水水质满足国家生活垃圾填埋污染控制标准（GB16889-2008）。本文介绍了该渗滤液处理系统的工艺流程,总结分析了工艺设计的要点。 相似文献
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In a landfill, excessive tensile strains or failure of the liner system due to localized subsidence underneath the geosynthetic liner, is a concern in design and operation of the landfill. The localized subsidence can be commonly withstood by reinforcements such as geogrids. A total of nine model tests were carried out to study the influence of soil arching in overburden sandy soil on the geosynthetics and the interaction between the soil and the geosynthetics. The localized subsidence was modeled by a strip trapdoor under the geosynthetic reinforcements. The reinforcement includes several layers of polyvinylchlorid (PVC) membrane or both PVC membrane and a compacted clay layer. Test results show that the vertical soil pressure acting on the geosynthetics within the subsidence zone is strongly related to the deflection of the geosynthetics. The soil pressure acting on the deflected geosynthetics will decrease to a minimum value with respect to its deflection if the final deflection is large enough, and this minimum value is almost independent of the overburden height. Otherwise, the deflection of geosynthetics cannot result in a full degree of soil arching, and the soil pressure within the subsidence zone increases with the increase of overburden height. Deflections and strains of the geosynthetics obviously decrease with the increase of their tensile stiffness. The presence of a compacted clay layer buffer can therefore reduce both deflections and strains of the geosynthetics. Finally, a composite liner structure is recommended for landfills to withstand the localized subsidences. 相似文献
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Molecular analysis of microbial community in a groundwater sample polluted by landfill leachate and seawater 总被引：1，自引：0，他引：1
INTRODUCTION In some coastal cities of China, municipal solidwaste (MSW) is ultimately landfilled at seashorezones with cheaper land-value and less disturbance tonearby residents. These seashore landfills wereusually constructed without appropriate liners toprevent percolation of leachate into underlyingaquifers. Dramatic hydrochemical changes in theseaquifers have been detected as a result of the highorganic load of leachate. Furthermore, these aquiferswere inevitably infiltrated by sea… 相似文献
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实施垃圾填埋场无害化管理就其技术特点而言,需要具备相关数据的及时性反馈特征。文中以实际填埋场库区管理为例,深入剖析包括生活垃圾填埋、填埋气体管理等主要环节,在此基础上对渗滤液处理站管理方式方法进行深入探讨。对每一环节严格按要求操作以调节运行机制,可以系统化实现垃圾填埋无害化管理。 相似文献
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