AWWA WQTC58870

Various combined biological reactor and membrane systems were examined to determinethe extent of organics removal possible for drinking water treatment without usingcoagulant as an aid in a membrane type process. Two systems with bioreactors andmembranes with influent total organic carbon levels (TOC) between 2-5 mg/L werestudied. The synthetic water, representing a moderate to high TOC water, consistedmainly of Aldrich humic acid. The remaining readily biodegradable componentsrepresented by acetate, formate and formaldehyde. Reductions in TOC up to 60% werepossible. Calculated humic acid levels were decreased in one experiment fromapproximately 2 mg/L to 1 mg/L through both biological degradation and membraneprocesses. The acetate, formate and formaldehyde present in the synthetic water hadremoval levels ranging from 70-100%. Includes 11 references, tables, figures.

Product Details

Edition:

Vol. - No.

Published:

11/02/2003

Number of Pages:

8

File Size:

1 file , 310 KB