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首页> 外文会议>International Conference on Nanomaterials: Science, Engineering and Technology >Feasibility study on the application of alum sludge (AS) as alternative landfill liner material in sustainable landfill infrastructure model: XRD and SEM analysis
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Feasibility study on the application of alum sludge (AS) as alternative landfill liner material in sustainable landfill infrastructure model: XRD and SEM analysis

机译：铝污泥（AS）作为可持续垃圾填埋基础设施模型中替代垃圾填埋衬垫材料的可行性研究：XRD和SEM分析

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摘要

The increasing number of Alum Sludge (AS) in water treatment plant (WTP) from water treatment process has been directed to the reduction of storage capacity for keeping of AS waste itself in the landfill. Other than disposed in the landfill site, this accumulated AS can be commercialized into a useful product such as landfill barrier. Conventionally, clay is used as the protection layer in the engineered sanitary landfill to reduce the leachate intrusion into groundwater. However, due to higher usage and demand on the clay (C) material caused its depletion and higher in cost. Therefore, accumulated AS can be recycled and reused to reduce the disposal problem in landfill and financial burden facing by the landfill operator. In this study, AS was investigated and compared with the kaolin clay (KC) in terms of XRD and SEM characteristics. The index properties and hydraulic conductivity, k test were also conducted to classify the AS and KC composition. Based on the testing, AS can be classified as High Plasticity Clay and the value of k for AS is higher than KC. Based on the results from XRD, both of KC and AS samples was having a similar crystalline phase which is Quartz. Based on the summary of compounds elements, the chemical elements of Oxygen, Aluminium, Silicon and Iron presence in AS have a quite similar percentage of weight (%) with KC. From all of these results, it can be concluded that the AS is mostly having similar materials to KC and amorphous in nature.
机译：水处理工艺（WTP）中越来越多的植物污泥（AS）已经针对减少垃圾填埋场的废物本身的储存能力。除了设置在垃圾填埋场的外，可以将其商业化成累积成垃圾填埋场等有用产品。传统上，粘土用作工程卫生垃圾填埋场中的保护层，以将渗滤液侵入到地下水中。然而，由于粘土（C）材料的使用率较高和对其耗尽和成本更高。因此，累计可以再循环并重复使用，以减少垃圾填埋场运营商面临的垃圾填埋场和财务负担中的处置问题。在这项研究中，根据XRD和SEM特性与高岭土粘土（KC）进行研究。还进行了指标性能和液压导电性，以进行AS和KC组合物。基于测试，可以将其分类为高可塑性粘土和k的值高于KC。基于来自XRD的结果，KC和样品的均具有类似的结晶相，其是石英。基于化合物元素的概述，氧气，铝，硅和铁的化学元素与KC具有相似相似的重量（％）。从所有这些结果中，可以得出结论，大多数主要具有与KC和无定形的类似材料。

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