‘Enhanced coagulation’ is the phrase used to define the process of obtaining improved
removal of disinfection byproduct (DBP) precursors by conventional treatment.
(Enhanced Coagulation and Enhanced Precipitative Softening Guidance Manual).
Concern with formation of DBP resulting from reactions of chlorine with naturally
occurring organic matter (NOM) led to the Disinfection and Disinfection Byproducts
Rule (DDBP). Specific goals are spelled out for managing the water treatment process in
order to optimize removal of NOM.