为了获得废水流量和水质的实际资料,对废水系统进行取样监测是经常采用的方法。但这样的方法也不是没有问题的,因为废水的流量和水质往往是每日每时、每星期、每月、各季节及每年都将有一定的变化,而且工业废水发生短时期冲击性出流的状况也不是完全可以避免的。然而,各类废水参数的变化经常有概率特性,在许多情况下 In order to obtain actual data on the flow of wastewater and water quality, sampling and monitoring of waste water systems is a frequently used method. However, this method is not without its problems because the flow rate and quality of the wastewater are often changed every hour, week, month, season, and year, and the industrial wastewater undergoes short-term impact outflow. The situation is not completely avoidable. However, changes in various types of wastewater parameters often have probabilistic characteristics, in many cases