医疗机构废水总余氯的监测方法优化

Optimization of Monitoring Method for Total Residual Chlorine in the Wastewater of Medical Institutions

对医疗废水中总余氯的监测方法进行优化,在标定实验滴定终点难以观察的情况下,引入化学需氧量测定中相同物质的标定实验进行互相验证,有效提高了滴定液浓度标定的准确性。通过对标准样品的分析测定,实验表明该方法的测定结果在标准样品浓度范围内,精密度和准确度符合质控要求。此外就医疗机构废水含氯消毒剂投放中存在问题进行分析,提出对应的整改建议。

In this paper,the monitoring method of total residual chlorine in medical wastewater was optimized.Under the condition that the titration end point of the calibration experiment was difficult to observe,the calibration experiment of the same substance in the chemical oxygen demand measurement was introduced to verify each other,which effectively improved the accuracy of the concentration calibration of the titrator.Through the analysis and determination of the standard sample,the experimental results showed that the determination results of this method were in the range of standard sample concentration,and the precision and accuracy met the requirements of quality control.This method would provide another effective way to accurately obtain the monitoring data.In addition,the problems existing in the delivery of chlorine-containing disinfectants in the wastewater of medical institutions were analyzed and summarized,and corresponding rectification suggestions were put forward to ensure that the residual chlorine concentration in the medical wastewater met the relevant standards.