废水化学需氧量测定方法的优化

Measurement Optimization of Chemical Oxygen Demand in Waster Water

丙烯酸废水采用GB 11914-89《水质化学需氧量的测定重铬酸盐法》测定。其方法危险性高、试剂用量大耗时长,测定结果重复性差、准确度低。ET99722COD分析仪在化学需氧量测定中应用范围广,结果准确度高,试剂用量小。

Acrylic acid waste water was measured by GB 11914-89 Dichromate Titration in Water Chemical Oxygen Demand Measurement,which is at high level of risks,time-consuming and low accuracy.ET99722 COD analyzer is of wide application and high accuracy as well as small dosage.