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AWWA ACE99470
- Earthy-Musty Taste in Drinking Water Distribution Systems: TCA Dynamics
- Conference Proceeding by American Water Works Association, 01/01/1999
- Publisher: AWWA
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Because their taste threshold concentrations are lower than CLSA GC-MS detection limit, TriChloroAnisoles (TCA) might contribute to several unsolved earthy-musty taste episodes. Combining lab scale experiments and water aging experiments in a pipe loop pilot, the relative importance of such taste causing compounds in earthy-musty taste episodes in distribution sytems was investigated. Earthy-musty taste associated to TCA formation can easily occur in distribution systems and is linked mainly to fungi metabolism. By maintaining chlorine residual, a control of such tastes can be achieved.
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