AWWA JAW41463

The effect of optimized coagulation on granular activated carbon (GAC) performance for removal of natural organic matter and control of disinfection byproducts was investigated. Coagulation optimized for total organic carbon (TOC) removal increased GAC run times by a factor of 2-3 over run times observed for GAC receiving conventionally treated water. The improved performance was mainly a result of reductions in influent TOC and pH after optimized coagulation, as compared with conventional pretreatment. Conventional coagulation prior to GAC was more cost-effective than optimized coagulation, because of increased costs associated with the high alum dosages used in this study. Includes 38 references, table, figures.

Product Details

Edition:

Vol. 88 - No. 8

Published:

08/01/1996

Number of Pages:

14

File Size:

1 file , 900 KB