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首页> 外文期刊>Bulletin of the National Research Centre >Geosynthetic Clay Liners for Landfills from Egyptian Bentonitic Clays
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Geosynthetic Clay Liners for Landfills from Egyptian Bentonitic Clays

机译：用于埃及膨润土的填埋场的土工合成粘土衬里

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Geosynthetic clay liners (GCLs) represent a relatively new technology currently gaining acceptance as a barrier system in municipal solid waste landfill applications. The technology offers some unique advantages over conventional bottom liners and covers. GCLs, for example, are fast and easy to install, have low hydraulic conductivity and have the ability to self-repair. A GCI, system is not as thick as a liner system involving the use of compacted clay, enabling the construction of landfills that maximize capacity while protecting area groundwater. The present study deals with the suitability of some Egyptian bentonitic clays for the manufacturing of GCLs. The mineralogical, chemical and physical properties of the studied clays show that they are mainly composed of montmorillonite, kaoline and illite. Quartz, gypsum and carbonates are present as gangue minerals. The physical properties of the clays show that, under the arid conditions of Egypt, they are suitable for manufacturing of GCLs for landfills, with or without activation.
机译：土工合成材料粘土衬里（GCL）代表了一种相对较新的技术，目前已作为市政固体垃圾填埋场应用中的隔离系统得到认可。与常规底衬和底盖相比，该技术具有一些独特的优势。例如，GCL快速，易于安装，水力传导率低并且具有自我修复的能力。 GCI系统的厚度不如使用压实粘土的衬砌系统厚，因此可以建造能够最大程度提高容量并同时保护区域地下水的垃圾填埋场。本研究涉及一些埃及膨润土在制造GCL中的适用性。所研究粘土的矿物学，化学和物理性质表明它们主要由蒙脱石，高岭土和伊利石组成。石英，石膏和碳酸盐作为脉石矿物存在。粘土的物理性质表明，在埃及的干旱条件下，无论是否活化，它们都适合制造用于垃圾掩埋场的GCL。

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