Impact of EPA Drinking Water Stage 2 Disinfectant and Disinfectant ...

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34Desired Analyzer Design FeaturesProvide valid readingsCritical influences for measurement:– Constant sample flow– Reagent availability– Optical system (photometer) functionalA continuous system must observe thesecritical parameters and inform the operator offailures.Disinfection
35Desired Analyzer Design FeaturesQuick verificationSubject to reliable quality checks at anappropriate frequency;• A continuous measuring system must haveprocedures implemented for verification.• Should not interfere with the measuring process(analyzer must not be offline for hours)Disinfection
Page 1 and 2: 1Impact of EPA Drinking Water Stage
Page 3 and 4: 3Safe Drinking Water Act of 1974•
Page 5 and 6: Stage 2 Rule5• The Stage 2 Disinf
Page 7 and 8: Chemistry of Chlorination7• Free
Page 9 and 10: 9Chemistry of Chlorination• Free
Page 11 and 12: 11Chemistry of Chlorine• Atomic N
Page 13 and 14: 13Chemistry of Chlorination• Duri
Page 15 and 16: 15History of Monochloramine Use•
Page 17 and 18: 17Chemistry of ChloraminesThe Basic
Page 19 and 20: 19Chemistry of Chloramines• The m
Page 21 and 22: 21CleanWaterDBP: Free Chlorine Trea
Page 23 and 24: Chloramination Process23• To form
Page 25 and 26: Chloramination Process25• Chlorin
Page 27 and 28: 27Chemical AdditionChemicalFeed Rat
Page 29 and 30: 29Chemical Addition• Goal: 5:1 we
Page 31 and 32: 31Measurement ChallengesPhotometry,
Page 33: 33Desired Analyzer Design FeaturesP
Page 37 and 38: 37Summary of Desired FeaturesA cont
Page 39 and 40: 39Measuring Process1. Zero measurem
Page 41 and 42: Monochloramine Monitoring41• Chlo
Page 43 and 44: Would You Benefit?43• Would you b
Page 45: 45Questions?Thank you for your atte

Impact of EPA Drinking Water Stage 2 Disinfectant and Disinfectant ...

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