CEE 697K ENVIRONMENTAL REACTION KINETICS Lecture #13 Prediction - - PDF document

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CEE 697K ENVIRONMENTAL REACTION KINETICS Lecture #13 Prediction - - PDF document

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11/13/2013 Updated: 13 November 2013 CEE697K Lecture #13 1 Print version CEE 697K ENVIRONMENTAL REACTION KINETICS Lecture #13 Prediction Methods: Going beyond Hammett I Brezonik, pp.553-578 Introduction David A. Reckhow Ozonation 2

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CEE 697K

ENVIRONMENTAL REACTION KINETICS

Introduction

David A. Reckhow

CEE697K Lecture #13 1

Updated: 13 November 2013

Print version

Lecture #13

Prediction Methods: Going beyond Hammett I

Brezonik, pp.553-578

Ozonation

 Removal by ozone

Westerhoff et al., 2005 [EST 39:17:6649]

David A. Reckhow

CEE697K Lecture #13

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QPAR: GAC adsorption of PPCPs

David A. Reckhow

CEE697K Lecture #13

3  EDC/PPCP removal as a

function of predicted log Kow based upon average removal data from all four source water experiments (5 mg/L WPM; 4-h contact time). Selected LC/MS/MS compounds are identified

Westerhoff et al., 2005 [ES&T, 39:6649]

QAAR – Oxidation of PPCPs

David A. Reckhow

CEE697K Lecture #13

4

Average percentage removal of LC/MS/MS and GC/MS/MS compounds by ozone and chlorine across four waters spiked with EDC/PPCPs (PVW, ORW, SRW, CRW).

 Solid line represents

1:1 removal between

  • zonation and

chlorination

  • experiments. Error

bars represent one standard deviation in percentage removal based on experiments in the four waters.

Westerhoff et al., 2005 [ES&T, 39:6649]

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Other approaches

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Snyder et al., 2007 “Removal

  • f EDCs and Pharmaceuticals in

Drinking and Reuse Treatment Processes” [AWWARF final report]

 Extending

estimations to more robust & empirical approximations

Volatilization

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 Henry’s law constants by UNIFAC

Snyder et al., 2007 “Removal

  • f EDCs and Pharmaceuticals in

Drinking and Reuse Treatment Processes” [AWWARF final report]

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Hydrolysis I

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 Returning to more fundamental LFERs

Snyder et al., 2007 “Removal

  • f EDCs and Pharmaceuticals in

Drinking and Reuse Treatment Processes” [AWWARF final report]

Hydrolysis II

David A. Reckhow

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 Applied to PPCPs

Snyder et al., 2007 “Removal

  • f EDCs and Pharmaceuticals in

Drinking and Reuse Treatment Processes” [AWWARF final report]

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David A. Reckhow

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 To next lecture