A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effects of Storage and Preoxidation on Sludge and Water Quality
Ever since the city of Newport News, Va., eliminated prechlorination at its water treatment facilities in 1982 in order to control trihalomethanes, it has been plagued by deterioration of alum sludges in manually cleaned sedimentation basins and by occasional declines in settled water quality. Laboratory and field studies showed that anaerobic conditions develop rapidly in manually cleaned sedimentation basins (but not in those that are mechanically cleaned), allowing manganese to be released from the sludge into the overlying water. The use of chlorine dioxide as a preoxidant was found to suppress this release of manganese, produce sludges with improved dewatering characteristics, and lengthen filter runs.
Effects of Storage and Preoxidation on Sludge and Water Quality
Ever since the city of Newport News, Va., eliminated prechlorination at its water treatment facilities in 1982 in order to control trihalomethanes, it has been plagued by deterioration of alum sludges in manually cleaned sedimentation basins and by occasional declines in settled water quality. Laboratory and field studies showed that anaerobic conditions develop rapidly in manually cleaned sedimentation basins (but not in those that are mechanically cleaned), allowing manganese to be released from the sludge into the overlying water. The use of chlorine dioxide as a preoxidant was found to suppress this release of manganese, produce sludges with improved dewatering characteristics, and lengthen filter runs.
Effects of Storage and Preoxidation on Sludge and Water Quality
Hoehn, Robert C. (author) / Novak, John T. (author) / Cumbie, William E. (author)
Journal ‐ American Water Works Association ; 79 ; 67-75
1987-06-01
9 pages
Article (Journal)
Electronic Resource
English
Control of Diatom by Preoxidation and Coagulation in Water Treatment
| British Library Online Contents | 2006
Chlorine Dioxide Preoxidation for DBP Reduction
| Wiley | 2017
Evaluation of preoxidation extent of polyacrylonitrile fibers
| British Library Online Contents | 2008
Release of Cyanobacterial Metabolites Due to Preoxidation Processes
| British Library Conference Proceedings | 2013