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医院排放的污水含菌量多在20～30万至2～3千万个/毫升之间。目前,对这类含病原体的污水处理多以加氯消毒为主,消毒效果的监测又多以余氯量、细菌总数和大肠菌群为指标。余氯量测定方法简单,微生物指标不适合日常监测要求。因此,我们以医院排放的污水为标本,染菌量为2,100万个/毫升,采用正交与二次回归正交试验法,进行了医院污水加氯消毒效果监测方法的实验,找出了水温、加氯量和接触时间等影响治毒效果的诸因素与指标值间的内在规律,得出了如下方程:
Hospital discharge of sewage bacteria in more than 20 to 30 million to 2 to 30 million / ml between. At present, the treatment of such pathogens with chlorinated disinfection is mainly based on the amount of residual chlorine, total bacteria and coliform bacteria. Residual chlorine determination method is simple, microbial indicators are not suitable for routine monitoring requirements. Therefore, we use the sewage discharged from the hospital as samples, with an inoculum capacity of 21 million / ml. Orthogonal and Quadratic Regression Orthogonal Tests were carried out to test the method for monitoring chlorination of sewage in hospitals. The water temperature , Chlorination and contact time and other factors that affect the effect of treatment of poisoning and the intrinsic law between the index values, the following equation: