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.The alkaline citrate solution was made by dissolving 200 g trisodium citrate and 10 g sodium hydroxide in 1000 mL deionized water. ... The absorbance of the indophenol complex was measured using a Spectronic 21 (Milton- Roy Company )anbsp;...
|Title||:||Seasonal Chlorination Practices and Impacts to Chloraminating Utilities|
|Author||:||Peter J. Vikesland, Nancy G. Love, Kartik Chandran, E. Matthew Fiss, Robert Rebodos, Anna E. Zaklikowski, Francis A. DiGiano, Bree Ferguson|
|Publisher||:||American Water Works Association - 2007-02-01|