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Investigation on Properties and Leachability of Sewage Sludge from Wastewater Treatment Plant Incorporated in Fired Clay Brick

机译:燃烧粘土砖废水处理厂污水污泥性能及可渗透研究

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Sewage sludge is produced from wastewater treatment plant that often dumped into landfill sites, lagoons or together with municipal waste. Apart from this, the disposal of this sewage sludge becoming a problem for environment. Thus, an alternate method is needed to overcome the issue. Therefore, the objective of this study is to determine the possibility of incorporating sewage sludge in fired clay brick and to compare with normal fired clay brick. The characteristics of sewage sludge were determined by using an X-ray Fluorescence. The mixing percentage used was 0%, 1%, 5%, 10%, 20% and 30%. The physical and mechanical properties were determined as to obtain the condition according to it mixing percentages. Based on physical and mechanical properties, the sewage sludge brick complies with the standard except for SSB30% where the compressive strength does not meet the minimum requirement limit of compressive strength. However, in terms of leachabiiity of this sewage sludge brick also resulted that the heavy metals leach out comply according to USEPA standard. The development of fired clay brick by using sewage sludge can reduce the dependency towards land use and will reduce the impact of the sewage sludge to the environment.
机译:污水污泥由荒水处理厂生产,这些污水处理厂往往倾倒入垃圾填埋场,泻湖或与市政垃圾一起。除此之外,该污水污泥的处置成为环境的问题。因此,需要一种替代方法来克服这个问题。因此,本研究的目的是确定在燃烧粘土砖中将污泥纳入并与普通烧制的粘土砖进行比较的可能性。通过使用X射线荧光测定污水污泥的特征。所用的混合百分比为0%,1%,5%,10%,20%和30%。确定物理和机械性能,以根据其混合百分比获得条件。基于物理和机械性能,污水污泥块符合标准,除了SSB30%,其中抗压强度不符合抗压强度的最小需求限制。然而,在这种污水污泥砖的典型性方面,也导致重金属浸出符合使用者标准。使用污水污泥的燃烧粘土砖的开发可以减少对土地利用的依赖,并将减少污水污泥对环境的影响。

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