Investigating the Impact of Permanganate Pre-Oxidation on Dissolved Organic Matter During Drinking Water Treatment Using Ultrahigh Resolution Mass Spectrometry

Investigating the Impact of Permanganate Pre-Oxidation on Dissolved Organic Matter During Drinking Water Treatment Using Ultrahigh Resolution Mass Spectrometry

Bibliographic Details
Main Author: Laszakovits, Juliana Rose
Language:English
Published: The Ohio State University / OhioLINK 2021
Subjects:
Environmental Engineering
Dissolved organic matter
ultrahigh resolution mass spectrometry
drinking water
permanganate
oxidation
pre-oxidation
alum
coagulation
activated carbon
sorption
disinfection byproducts
chlorination
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=osu1618502414197717
id ndltd-OhioLink-oai-etd.ohiolink.edu-osu1618502414197717
record_format oai_dc
collection NDLTD
language English
sources NDLTD
topic Environmental Engineering
Dissolved organic matter
ultrahigh resolution mass spectrometry
drinking water
permanganate
oxidation
pre-oxidation
alum
coagulation
activated carbon
sorption
disinfection byproducts
chlorination
spellingShingle Environmental Engineering
Dissolved organic matter
ultrahigh resolution mass spectrometry
drinking water
permanganate
oxidation
pre-oxidation
alum
coagulation
activated carbon
sorption
disinfection byproducts
chlorination
Laszakovits, Juliana Rose
Investigating the Impact of Permanganate Pre-Oxidation on Dissolved Organic Matter During Drinking Water Treatment Using Ultrahigh Resolution Mass Spectrometry
author Laszakovits, Juliana Rose
author_facet Laszakovits, Juliana Rose
author_sort Laszakovits, Juliana Rose
title Investigating the Impact of Permanganate Pre-Oxidation on Dissolved Organic Matter During Drinking Water Treatment Using Ultrahigh Resolution Mass Spectrometry
title_short Investigating the Impact of Permanganate Pre-Oxidation on Dissolved Organic Matter During Drinking Water Treatment Using Ultrahigh Resolution Mass Spectrometry
title_full Investigating the Impact of Permanganate Pre-Oxidation on Dissolved Organic Matter During Drinking Water Treatment Using Ultrahigh Resolution Mass Spectrometry
title_fullStr Investigating the Impact of Permanganate Pre-Oxidation on Dissolved Organic Matter During Drinking Water Treatment Using Ultrahigh Resolution Mass Spectrometry
title_full_unstemmed Investigating the Impact of Permanganate Pre-Oxidation on Dissolved Organic Matter During Drinking Water Treatment Using Ultrahigh Resolution Mass Spectrometry
title_sort investigating the impact of permanganate pre-oxidation on dissolved organic matter during drinking water treatment using ultrahigh resolution mass spectrometry
publisher The Ohio State University / OhioLINK
publishDate 2021
url http://rave.ohiolink.edu/etdc/view?acc_num=osu1618502414197717
work_keys_str_mv AT laszakovitsjulianarose investigatingtheimpactofpermanganatepreoxidationondissolvedorganicmatterduringdrinkingwatertreatmentusingultrahighresolutionmassspectrometry
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-osu16185024141977172021-10-15T05:10:51Z Investigating the Impact of Permanganate Pre-Oxidation on Dissolved Organic Matter During Drinking Water Treatment Using Ultrahigh Resolution Mass Spectrometry Laszakovits, Juliana Rose Environmental Engineering Dissolved organic matter ultrahigh resolution mass spectrometry drinking water permanganate oxidation pre-oxidation alum coagulation activated carbon sorption disinfection byproducts chlorination Dissolved organic matter (DOM) is ubiquitous in natural and engineered aquatic systems. DOM can be problematic during drinking water treatment due to its ability to scavenge oxidants and react with chlorine to form carcinogenic disinfection byproducts (DBPs). Drinking water treatment plant operators aim to minimize DBP formation by removing DOM (alum coagulation and activated carbon sorption) or altering DOM composition (permanganate oxidation). While permanganate pre-oxidation has been claimed widely to be an effective strategy to reduce DBP formation, its impact on drinking water treatment and subsequent DBP formation remains poorly understood. Here, a novel ultrahigh resolution mass spectrometric approach was used to characterize DOM by combining data from multiple ionization techniques to provide greater insight on DOM molecular level changes induced by treatment. In Chapter 2, this approach was applied along with Fourier Transform-infrared spectroscopy and ultraviolet-visible spectroscopy to understand which DOM components react with permanganate for two DOM isolates (a terrestrial isolate and a microbial isolate). Aromatic and nitrogenous components were found to react with permanganate and help explain previously observed trends between permanganate-DOM reaction rates and SUVA-254 values as well as why algal-derived DOM can efficiently scavenge permanganate. In Chapter 3, the impact of permanganate pre-oxidation on the response of DOM to subsequent treatments was investigated using ultrahigh resolution mass spectrometry and bulk characterization techniques for three DOM isolates that represented different DOM source types: terrestrial, algal-impacted, and wastewater effluent-impacted. Permanganate pre-oxidation enhanced removal of aromatic components by coagulation and activated carbon sorption because it added negatively charged functional groups that interacted more favorably with sorption sites. It was also observed that complimentary treatments (i.e., coagulation followed by activated carbon sorption in that order) improved overall DOM removal by targeting different fractions. In Chapter 4, the impact of these changes to DOM during drinking water treatment operations on DBP formation by chlorine was investigated for four major classes of DBPs: volatile carbonaceous DBPs (trihalomethanes and haloketones), haloacetic acids, volatile nitrogenous DBPs (halonitriles and chloropicrin), and nitrosamines. The impact of permanganate pre-oxidation on DBP formation depended on the DOM isolate type. Permanganate pre-oxidation was able to reduce nitrogenous DBP formation when applied alone but its ultimate impact depended on subsequent treatments; permanganate pre-oxidation reduced the efficacy of subsequent treatments to reduce carbonaceous DBP formation. From the ultrahigh resolution mass spectrometric data obtained, two DBP precursor structures are proposed using insight gained from the multiple ionization techniques. This work highlights the advantage of using multiple ionization techniques coupled to ultrahigh resolution mass spectrometry to characterize DOM and provides molecular level insight for a more nuanced approach to managing DOM in drinking water treatment. 2021-10-14 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1618502414197717 http://rave.ohiolink.edu/etdc/view?acc_num=osu1618502414197717 restricted--full text unavailable until 2022-05-10 This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.

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