Description
The Contra Cost Water District (CCWD), through an American Water Works Association Research Foundation (AWWARF) Tailored Collaboration Project, conducted an evaluation of the efficacy of preoxidation with a combination of chlorine dioxide (ClO2) and ozone (O3) at its 40 mgd Randall-Bold Water Treatment Plant (WTP). This facility is a direct filtration plant that uses raw-water ozonation for filtration enhancement and ozonation after filtration (post ozonation) for primary disinfection. Results indicated that: ClO2 addition before preozonation reduced bromate formation; a majority of the chlorite formed by ClO2 reactions with raw water constituents was oxidized to chlorate by ozonation; and, preoxidation with ClO2 was as effective as preoxidation with ozone for enhancing filtration. Includes 4 references.
Product Details
- Edition:
- Vol. – No.
- Published:
- 11/01/2002
- Number of Pages:
- 4
- File Size:
- 1 file , 210 KB
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
