Please enable JavaScript.
Coggle requires JavaScript to display documents.
Trihalomethanes (THM) - Coggle Diagram
Trihalomethanes (THM)
treatment
THM levels tend to increase with pH, temperature, time, and the level of "precursors" present
One way to decrease THM's is to eliminate or reduce chlorination before the filters and to reduce precursors.
EPA indicated the best available technology for THM control at treatment plants is removal of precursors through "enhanced coagulation"
-
removal is improved by
- decreasing the pH (4/5)
- increasing the feed rate of coagulants
- using ferric coagulants instead of alum
Definition
-
-
Chloroform, Dichlorobromomethane (DCBM), Dibromochloromethane (DBCM) and Bromoform
-
-
-
-
-
-