The results of ozone pre-oxidation and conventional process treating slightly-polluted source water showed that this unit could reduce effectively COD_(Mn), color and turbidity.

方法采用臭氧预氧化与常规处理联用工艺对微污染水源水进行了中试试验，研究了高锰酸盐指数、浊度、色度的处理效果。

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First, the choice of antifreeze to see color, genuine antifreeze liquid and transparent, the general was yellow green or red, substandard antifreeze is turbidity is blue.

首先，选择防冻液要看颜色，正牌防冻液液体透亮，一般呈黄绿色或红色，不合格的防冻液很浑浊多呈蓝色。

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Experiment results are not affected when omitting digestion process to prepare TP standard sample by using a simple and fast method to eliminate disturbance of turbidity or color.

采用简单快速的方法消解水体中浊度或色度的干扰，在制备总磷标准时可省略消解操作步骤，实验结果不受影响。

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