摘要
针对高氯存在影响COD测定结果的现象 ,进行了高氯废水中COD测定的两种掩蔽方法、一种抑制方法及银柱方法除氯对比分析。通过实验验证确定用银柱法首先消除氯的干扰 ,再以国标重铬酸钾法测定COD值 ,具有准确度高、精密度高的特点 。
As the existence of high-chlorine had an effect on determination of COD, the determination results of COD in high-chlorine waste water by two masking method, one inhibitor method and silver-column method were compared. Due to the high accuracy and precision, it's considered a better scheme to remove chlorine by silver-column method and then determine the COD value by potassium dichromate method.
出处
《辽宁化工》
CAS
2004年第11期680-682,共3页
Liaoning Chemical Industry
关键词
COD
高氯废水
测定
COD
High-chlorine waste water
Determination
