TEMPORAL ANALYSIS OF HYDROXYL RADICAL SCAVENGING IN WATERS.

Simple item page
dc.contributor.advisorWigginton, Krista Ruleen_US
dc.contributor.authorDonham, Joel Edwarden_US
dc.contributor.departmentCivil Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2013-10-09T05:34:36Z
dc.date.available2013-10-09T05:34:36Z
dc.date.issued2013en_US
dc.description.abstractThe ability to assess hydroxyl radical (*OH) scavenging rates of natural organic matter (NOM) (k<sub>NOM,*OH<sub>) is necessary for the optimization of advanced oxidation processes (AOPs) for water treatment, and to understand the role of *OH in natural systems. We have developed a rapid method to measure *OH scavenging rates in less than one hour. Using the method, we measured k<sub>NOM,*OH<sub> for NOM isolates, and performed the first known scavenging analyses of surface waters and treated drinking waters over time. The results are compared with values quantified using more time consuming methods. Our results reveal that k<sub>NOM,*OH<sub> in water samples can fluctuate with time, which has implications for AOP operation. The methods and benefits of the new measurement technique and implications of observed variability of k<sub>NOM,*OH<sub> values on AOP operations are presented. Additionally, observations regarding current NOM scavenging measurement and analysis methods are discussed.en_US
dc.identifier.urihttp://hdl.handle.net/1903/14601
dc.subject.pqcontrolledEnvironmental engineeringen_US
dc.subject.pquncontrolledadvanced oxidationen_US
dc.subject.pquncontrolledaopen_US
dc.subject.pquncontrolledhydroxyl radicalen_US
dc.subject.pquncontrolledscavengingen_US
dc.subject.pquncontrolledUVen_US
dc.subject.pquncontrolledwater treatmenten_US
dc.titleTEMPORAL ANALYSIS OF HYDROXYL RADICAL SCAVENGING IN WATERS.en_US
dc.typeThesisen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Donham_umd_0117N_14616.pdf
Size:
5.14 MB
Format:
Adobe Portable Document Format
Download

Collections

UMD Theses and Dissertations
Civil & Environmental Engineering Theses and Dissertations