Chlorine Decay, Water Age, and THMs - OH MY - Ohiowater.org
Chlorine Decay, Water Age, and THMs - OH MY - Ohiowater.org
Chlorine Decay, Water Age, and THMs - OH MY - Ohiowater.org
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<strong>Chlorine</strong> <strong>Decay</strong>, <strong>Water</strong> <strong>Age</strong>, <strong>and</strong> <strong>THMs</strong> – <strong>OH</strong> <strong>MY</strong>Residual <strong>Decay</strong> Models• Residual decay follows first order reactionCtCoekt• C t = concentration at time t• C o = initial concentration• k = residual decay coefficient• t = decay time in days• Calculate decay coefficients (k) using reaction equation• Excel graphing function works well• <strong>Decay</strong> models developed using identified coefficients forfree chlorine <strong>and</strong> monochloramine4
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