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首页> 外文期刊>Journal of water resource and protection >Characterization of Sludge Produced by Treatment of Water from the Ribaa and Bittit Karstic Springs (Meknes, Morocco)
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Characterization of Sludge Produced by Treatment of Water from the Ribaa and Bittit Karstic Springs (Meknes, Morocco)

机译：从Ribaa和Bittit Karstic Springs（Meknes，Morocco）治疗水产生的污泥的特征

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Problem Statement: Surface Water Treatment for potable supplies typically involves coagulation, flocculation, and processes. All water treatment plants produce sludge, during the purification of raw water, according to the level of the water turbidity. The aluminum sulfate is the most common coagulant used in water treatment plants of Morocco, as well as in many countries all over the world. It is difficult to manage sludge produced by the treatment plant. However, several studies, based on a set of jar test experiments, have demonstrated that it can be used in the process to improve the quality of the treated water and reduce the aluminum sulfate dose. Approach: In this study, the raw water treated and sludge produced in water treatment plant of Meknes, Morocco are investigated for chemical and bacteriological proprieties. The texture characterization of the dried sludge produced through the process of coagu-lation/flocculation and that of aluminum sulfate, used as coagulant aid, are obtained by nitrogen adsorption isotherms. Results: The physical properties of the raw water indicate its high turbidity during periods of heavy rainfall in the Bittit and Ribaa springs catchment area. However, these chemical properties indicate the quality of fresh water rich in magnesium, related to the do-lomitic nature of the liastic aquifer. The bacteriological analysis of sludge produced in the treatment plant, confirms the elimination of pathogenic germs by the treatment process used. As regards the texture characterization the results demonstrated that the sludge presents some similarities with the sulfate. However, a clear difference is observed between the two solids, according to the pores distribution. Conclusions/Recommendations: Taking aluminum sulfate and sludge in comparison, it is possible to use the sludge for improving the coagulation process in water treatment.
机译：问题陈述：饮用用品的地表水处理通常涉及凝血，絮凝和过程。所有水处理厂都会在纯净水中生产污泥，根据水浊度的水平。硫酸铝是摩洛哥水处理厂中使用的最常见的凝结剂，以及世界各地的许多国家。难以管理治疗厂生产的污泥。然而，基于一组JAR测试实验的几项研究表明，它可以用于改善处理水的质量并减少硫酸铝剂量。方法：在本研究中，研究了Meknes水处理厂生产的原水处理和污泥，用于化学和细菌学。通过氮吸附等温线获得通过凝固/絮凝过程和用作凝固剂的硫酸铝的干燥污泥的质地表征。结果：原水的物理性质在Bittit和Ribaa Springs集水区的大雨期间表明其高浊度。然而，这些化学性质表明富含镁的淡水质量，与智慧含水层的DO-LOMITM性质有关。治疗厂中生产的污泥的细菌学分析证实了通过使用的治疗方法消除致病菌。关于质地表征，结果表明污泥与硫酸盐呈现了一些相似之处。然而，根据孔的分布，在两个固体之间观察到透明差异。结论/建议：采用硫酸铝和污泥相比，可以使用污泥来改善水处理中的凝固过程。

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