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AWWA ACE91051
- Trends in Aldehyde Formation and Removal Through Plants Using Ozonation and Biological Active Filters
- Conference Proceeding by American Water Works Association, 01/01/1991
- Publisher: AWWA
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This initial survey of seven water treatment plants using ozonation and filtration provides confirmation that aldehyde formation is quite prolific during ozonation, with the dialdehydes glyoxal and methyl glyoxal being the most abundant. Filtration following ozonation seems to be effective in removing a large percentage of these aldehydes when operating in a biological mode. However, there is no firm evidence to show that either preozonation or subsequent filtration can completely remove the precursors to their formation by post-disinfectants.
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