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Full-Text Articles in Engineering
Electrochemical Removal Of Estrogenic Compounds From Drinking Water, Emily Maher
Electrochemical Removal Of Estrogenic Compounds From Drinking Water, Emily Maher
Dissertations (1934 -)
Estrogenic compounds in water pose a range of ecological health risks such as fish feminization and public health risks including reproductive health issues, precocious puberty, cancer, and increased rates of obesity and diabetes. Drinking water treatment systems were not designed to remove estrogenic compounds. This research evaluated the use of advanced drinking water treatment processes, specifically electrocoagulation (EC) and electrooxidation (EO), for the removal of estrogenic compounds. Bench-scale experiments revealed that, during EC, current density correlated well with an increase in estrogenic compound removal, while conductivity did not impact removal. Higher stir rates and faster polarity reversal times improved estrogenic …
Impact Of Electrocoagulation Pretreatment On E. Coli Mitigation Using Electrooxidation, William Mcgregor Lynn
Impact Of Electrocoagulation Pretreatment On E. Coli Mitigation Using Electrooxidation, William Mcgregor Lynn
Master's Theses (2009 -)
Small drinking water systems serve approximately 20% of the US population, but they can struggle to comply with the Total Coliform Rule and the Disinfectant and Disinfection Byproduct Rule. Issues with insufficient funds to effectively treat the water and difficulties with the transportation of required chemicals can affect compliance. Electrochemical processes may offer an alternative approach for small water systems as they have demonstrated some advantages over traditional treatments, such as reduced handling and storage of chemicals and cost effectiveness. Sequential electrochemical processes have yet to be tested for the treatment of E. coli in drinking waters. In this study, …
Iron-Enhanced Mitigation Of Viruses In Drinking Water, Joseph Aiden Heffron
Iron-Enhanced Mitigation Of Viruses In Drinking Water, Joseph Aiden Heffron
Dissertations (1934 -)
Waterborne viruses are ubiquitous in the environment and present a global threat to public health. Previous research has suggested that iron-based water treatment has promise as a low-cost, non-toxic means of virus mitigation. In particular, zero-valent and ferrous iron have shown evidence of inactivating bacteria and viruses. The purpose of this research was to elucidate the relationship between iron oxidation and virus inactivation and determine if iron-based inactivation can enhance two water treatment processes, electrocoagulation and electrooxidation, for virus mitigation. This research first investigated bacteriophage inactivation due to ferrous oxidation in batch tests using ferrous chloride salt. Ferrous iron oxidation …