THE IMPACT OF ON-LINE THM MONITORING ON DRINKING WATER PLANT DESIGN, TOTAL LIFE COSTS, AND REGULATORY STANDARDS AND REQUIREMENTS

摘要

Increasingly stringent local, state and national regulations have spurred the need for better and quicker information to monitor and track the composition of waters. Physical, chemical and biological parameters of water have historically been monitored using routine grab samples. This approach collected only a relatively small data set, potentially missing important events occurring between sampling schedules. Moreover, the infrequent data sets from manual sampling offered little insight for utilities to proactively manage, control and mitigate contaminants such as disinfection by-products (DBPs) across their applications. There are four primary species of Trihalomethanes (THMs) - chloroform (CHCl3), bromodichloromethane (CHCl2Br), dibromochloromethane (CHClBr2) and bromoform (CHBr3).