AWWA JAW10522

In a laboratory study using samples of natural waters that are sources for public water supplies, coagulation with alum and ferric chloride was shown to be viable for removing trihalomethane precursors. Alum was more effective than ferric chloride in reducing total organic and trihalomethane formation potential (THMFP) of the various waters, but process variables and raw water characteristics influenced the effectiveness of metal coagulation. Various coagulant aids were evaluated in conjunction with alum and ferric chloride. In most cases, the coagulant-coagulant aid combination increased THMFP removal. Includes 18 references, tables, figures.

Product Details

Edition:

Vol. 75 - No. 10

Published:

10/01/1983

Number of Pages:

5

File Size:

1 file , 1.3 MB