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>Bromide Effects on THM Reactions• Form DBPs 2 times faster than chlorine• Shifts from chlorinated to brominated species• Halogen substitution reactions like chlorine (Br - ion)• Attacks more NOM sites than chlorine• 50% bromide reacts to form <strong>THMs</strong>, where only 10% chlorine reacts toform <strong>THMs</strong>• Impact on THM concentration dependent on NOM concentration• Low NOM reduces bromide reactionBromoform33
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