Because of high TOC in the raw water, the town of Nome has asked your firm to evaluate th...

Because of high TOC in the raw water, the town of Nome has asked your firm to evaluate the feasibility of using chlorine dioxide as a primary disinfectant. The concern of the utility is the potential for odor complaints that are reported to occur at concentrations greater than 0.1 mg/L (Hoehn et al., 2003). The following data have been provided by the utility. What is the maximum dose they can apply without causing odor complaints? Use a spreadsheet program you have written to determine the decay constant and use it to estimate the maximum dose. Ignore the initial ClO₂ demand in determining the decay constant.

Contact chamber detention times

100 min at Q_min

42 min at Q_max