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首页> 外文会议>International Conference on Dam Safety Management and Engineering >The Effect of Acid Treatment on Diatomite and Its Application in Treating Semenyih and Langat River Water
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The Effect of Acid Treatment on Diatomite and Its Application in Treating Semenyih and Langat River Water

机译：酸处理对硅藻土的影响及其在治疗Semenyih和Langat河水中的应用

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The water quality in the rivers of Malaysia is slowly deteriorating, often, high turbid water intake in water treatment plant causes overloading thus raising water treatment cost. Therefore, this study will provide an insight into the application of acid-treated diatomite in treating turbid river water in Malaysia. The objective of this study is to eliminate the impurities that block the pores through acid treatment and evaluate the performance of acid-treated diatomite in treating turbid river water. The diatomite was treated with 5 N sulphuric acid (H2SO4) to remove impurities that block the pore, which will reduce its efficiency to capture the suspended solids and sediment. The river water samples were taken from Semenyih and Langat Rivers flowing from Semenyih and Langat Dams. The variation in natural organic matter in river water samples helps to validate the efficiency of diatomite. The results revealed that the acid-treated diatomite has better turbidity reduction efficiency compared to theuntreated diatomite. Turbidity removal efficiency achieved for Semenyih River was 99% with a dosage of 66 mg/L at pH of 7.1 whereas for Langat river was 99% with a dosage of 74 mg/L at pH of 7.9. On the other hand, untreated diatomite showed turbidity removal efficiency below 20%. These results showed that acid-treated diatomite has the potential to be an effective coagulant to reduce the high turbid water with turbidity efficiency above 90%.
机译：马来西亚河流中的水质慢慢恶化，往往，水处理厂的高浑浊水摄入量导致过载，从而提高水处理成本。因此，本研究将深入了解酸处理的硅藻土在马来西亚治疗混浊河水中的应用。本研究的目的是消除通过酸处理阻止孔隙的杂质，并评估酸处理的硅藻土在处理混浊河水中的性能。用5N硫酸（H 2 SO 4）处理硅藻土以除去阻断孔的杂质，这将降低其效率以捕获悬浮固体和沉积物。从Semenyih和Langat Dams流出的Semenyih和Langat Rivers采取了河水样本。河水样品中天然有机物的变化有助于验证硅藻土的效率。结果表明，与细化的硅藻土相比，酸处理的硅藻土具有更好的浊度降低效率。对于Semenyih河流的浊度去除效率为99％，剂量为66mg / L的pH值为7.1，而Langat River为99％，剂量为74mg / L的pH值为7.9。另一方面，未处理的硅藻土显示出低于20％的浊度去除效率。这些结果表明，酸处理的硅藻土具有有效的凝结剂，以减少高浊度效率高于90％。

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