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首页> 外文会议>Global Congress on Construction, Material and Structural Engineering >Reuse of dredged marine soils as landfill liner: Effect of pH on Escherichia coli growth
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Reuse of dredged marine soils as landfill liner: Effect of pH on Escherichia coli growth

机译：作为垃圾填埋衬垫重用疏浚海洋土壤：pH对大肠杆菌生长的影响

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A potential reuse area yet to be explored is the utilization of dredged marine soils (DMS) as geosorbent to retain pathogenic bacteria in landfill leachate. The use of DMS as geosorbent in landfill site could be considered as a new way of environmental friendly solid waste management. By laying DMS at the base of landfill like conventional clay liners, the geowaste could be simultaneously disposed of and act as passive geosorbent for microbes in leachate. DMS are known to serve as a hospitable environment for bacteria growth. Environmental factors such as soil's pH, salinity and particle size could affect the bacteria growth rate. This study investigated the effect range of pH value on the growth of indicator bacteria, Escherichia coli (E. coli) isolated from landfill leachate. The results showed that the number of E. coli grew higher in alkaline compared to acidic condition. Findings from this study will serve as a base for future studies for removing bacteria in leachate using DMS as geosorbent in a landfill site.
机译：尚未探索的潜在重用区域是利用疏浚海洋土壤（DMS）作为GeoSorbent，以保留垃圾渗滤液中的病原体细菌。 DMS在垃圾填埋场中的GeoSorbent使用DMS可以被视为环保型固体废物管理的新方式。通过像常规粘土衬垫这样的垃圾填埋场底座铺设DMS，可以同时处理GeOWaste并充当浸出物中微生物的被动磨碎剂。已知DMS作为细菌生长的好客环境。土壤pH值，盐度和粒度等环境因素可能会影响细菌生长速率。本研究研究了对垃圾渗滤液中分离的指标细菌生长的pH值的效果范围。结果表明，与酸性条件相比，碱性大肠杆菌的数量越来越高。本研究的调查结果将作为未来研究用于在垃圾填埋场中使用DMS作为GeoSorbent中除去渗滤液中细菌的研究的基础。

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