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Novel Operation of Granular Activated Carbon Contactors for Removal of Disinfection Byproducts Precursors


Abstract Granular activated carbon (GAC) is effectively used to remove natural organic matter (NOM) and to assist in the removal of disinfection byproducts (DBPs) and their precursors. However, operation of GAC is cost- and labor-intensive due to frequent media replacement. Optimizing the use of GAC is necessary to ensure treatment efficiency while reducing costs. This dissertation presents four strategies to reduce improve GAC usage while reducing formation of DBPs. The first part of this work adopts Rapid Small Scale Tests (RSSCTs) to evaluate removal of molecular weight fractions of NOM, characterized using size exclusion chromatography (SECDOC). Total trihalomethanes (TTHM), haloacetic acids (HAA5) and haloacetonitriles (HAN) formation were quan... (more)
Created Date 2017
Contributor Fischer, Natalia (Author) / Westerhoff, Paul (Advisor) / Hristovski, Kiril (Committee member) / Fox, Peter (Committee member) / Arizona State University (Publisher)
Subject Environmental engineering / Water resources management / Disinfection byproducts / Granular activated carbon / Natural organic matter / trihalomethanes / Water treatment
Type Doctoral Dissertation
Extent 170 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Doctoral Dissertation Civil, Environmental and Sustainable Engineering 2017
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis