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RISMonochloramine Formation and Decay in the Presence of H2O2 after UV/H2O2 Advanced Oxidation
Publisher: ASCE
Abstract: When treating drinking water using UV/H2O2 advanced oxidation, the H2O2 residual is usually quenched to allow for downstream chlorine stability. In some utilities, monochloramine (NH2Cl) is used for secondary disinfection, ...
Discussion: Environmental Impacts of Nutrient Removal Processes: Case Study
Publisher: American Society of Civil Engineers
Comparison of Hydrogen Peroxide to Ammonium Ions and Sulfite as a Free Chlorine Quenching Agent for Disinfection By-Product Measurement
Publisher: American Society of Civil Engineers
Abstract: Hydrogen peroxide is a potential dechlorinating agent that can preserve chlorinated drinking water samples for the determination of disinfection by-products (DBPs). The impact of hydrogen peroxide on the storage of ...
Modeling the Impact of Microbial Intrusion on Secondary Disinfection in a Drinking Water Distribution System
Publisher: American Society of Civil Engineers
Abstract: The purpose of this study was to quantify the potential level of protection that secondary disinfection may provide in response to an intrusion event. Although several uncertainties exist regarding intrusion events, this ...
Inactivation of Adenovirus Types 2, 5, and 41 in Drinking Water by UV Light, Free Chlorine, and Monochloramine
Publisher: American Society of Civil Engineers
Abstract: A bench-scale study was conducted to determine the inactivation of adenovirus (Ad) types 2, 5, and 41 by ultraviolet (UV) light, chlorine, and monochloramine. The motivation for this study was to determine whether UV ...
Minicolumn Test of Remaining GAC Performance for Taste and Odor Removal: Theoretical Analysis
Publisher: ASCE
Abstract: In drinking water treatment, it is difficult to predict the remaining service life of a partially spent granular activated carbon bed when contaminants are intermittent, such as taste and odor-causing compounds. A ...