Download or read book Seasonal Chlorination Practices and Impacts to Chloraminating Utilities written by Peter J. Vikesland and published by American Water Works Association. This book was released on 2007-02 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chloramines are widely used to maintain a disinfectant residual in water distribution systems, but can result in nitrification. This research documents the effectiveness of free chlorine for the control of nitrifying bacteria, evaluates the effect of pipe materials on nitrifying bacteria, and determines how DPBs change as a result of the switch to free chlorine.