Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"secondary maximum contaminant level"”.
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Manganese removal from an organic-laden surface water
… As a result, soluble manganese increases to levels of nearly 6.0 mg/L at the bottom. It is released from the sediments under anaerobic conditions. Total organic carbon levels ranging from 4.0 to 7.25 mg/L were noted with increasing depth. Plant profiles were developed to indicate the …
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Manganese in Private Drinking Water Systems: A Statewide Assessment of Virginia
… or have only tested it once. Manganese (Mn) is a contaminant gaining attention due to its health risks. The United States Environmental Protection Agency (EPA) regulates Mn in public water systems with a Secondary Maximum Contaminant Level (SMCL) of 0.05 mg/L for aesthetic concerns and a Health …
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Understanding Practical Limitations of Lead Certified Point of Use (POU) Filters
… to protect consumers from elevated water lead levels. This thesis rigorously examines the efficacy of POU lead certified filters in removing lead under a wide range of conditions, and evaluates premature clogging due to iron and associated impacts on the cost analysis of using filters instead …
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Development of Soluble Manganese Sorptive Contactors for Enhancing Potable Water Treatment Practices
… (Mn) concentration can reach and exceed the Secondary Maximum Contaminant Level (SMCL) of 0.05 mg/L in the water distribution system. At this level, soluble Mn can be oxidized to solid Mn-oxide particulates, leading to water discoloration events and resulting in numerous consumer complaints. …
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Springing for Safe Water: Drinking Water Source Selection in Central Appalachian Communities
There are rural residents of Central Appalachia that collect their drinking water from roadside springs despite having access to in-home piped point-of-use (POU) water. Residents have cited perceptions about water availability/quality as primary motivators for collecting drinking water from …
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Practical Application of NSF/ANSI 53 Lead Certified Filters: Investigating Lead Removal, Clogging and Consumer Experience
… that these filters would reduce water lead to levels that are safe for consumption as residents wait for municipalities to provide more permanent solutions (e.g., corrosion control, lead service line replacement). These filters are certified by the National Sanitation Foundation (NSF) after …