焦化废水化学需氧量测定方法的研究

Study on determination of chemical oxygen demand of coking waste water

化学需氧量是评价水体污染程度的重要指标,是水质监测的重要参数。分析了重铬酸钾法和分光光度法的优点及缺点,改进了焦化废水的检测方法。

Chemical oxygen demand is an important index for evaluating the degree of pollution ofwater. It is an important parameter to monitor water quality. This paper analyzes the advantages anddisadvantages of potassium dichromate method and spectrophotography method, based on which themeasuring method for determination of coking waste water is improved.