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2013-05-23 12:21
求翻译：So, we the maximum concentration of the chemical added is on the 38 ppm. When it exceeds the 38 ppm, the turbidity formed is from the excessive chemical used to coagulate, it is not from the colloid of the raw water. Then for the big scale of the raw water management is done by the calculation of the chemicals amounts是什么意思？ 待解决
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So, we the maximum concentration of the chemical added is on the 38 ppm. When it exceeds the 38 ppm, the turbidity formed is from the excessive chemical used to coagulate, it is not from the colloid of the raw water. Then for the big scale of the raw water management is done by the calculation of the chemicals amounts
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