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 10 of 10 for “"Surface Water Treatment"”.
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Evaluating the use of manganese-oxidizing bacteria in surface water treatment plants
Soluble manganese (Mn) presents a significant treatment challenge to many water utilities, causing aesthetic and operational concerns. Surface water treatment plants using ozonation followed by biofiltration are unable to apply free chlorine across the filter, a method used by many utilities for …
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Characterising water treatment works performance using fluorescence spectroscopy
Organic matter (OM) in drinking water treatment is a common impediment responsible for increased coagulant and disinfectant dosages, formation of carcinogenic disinfection-by products (DBPs), and microbial re-growth in distribution system. The inherent heterogeneity of OM implies the utilization of …
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Development of a reverse osmosis/electrodialysis process to concentrate natural organic matter
Disinfection in water treatment has been used to protect public health for over 100 years. Disinfectants are added to inactivate pathogens in the drinking water treatment plant and throughout the distribution system. As an unintended consequence, disinfectants react with natural organic matter …
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The economic impacts of the 1986 Safe Drinking Water Act amendments
… over the poor quality of the nation's drinking water began to arise. Though the Safe Drinking Water Act (SDWA) had been passed almost a decade earlier, many problems still existed. These problems included the inability of the Environmental Protection Agency to promulgate new drinking water …
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Development and application of fractionation procedure for drinking water organic matters
… by-products (DBPs) in finished drinking water and recommends reduction of natural organic matters (NOM), DBP precursors, to achieve this regulatory goal. Studies relating NOM with DBP include fractionation of water samples, characterization of collected organic fractions, fractions' …
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Effect Of Source Water Blending On Copper Release In Pipe Distribution System: Thermodynamic And Empirical Models
… focuses on copper release in drinking water. Qualitative and quantitative assessment of Cu and Fe corrosion by process water quality was assessed over one year in a field study using finished waters produced from seven different treatment process and eighteen pilot distribution systems …
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Mechanisms Of Nanofilter Fouling And Treatment Alternatives For Surface Water Supplies
… solute mass transport in nanofiltration (NF) of surface waters. Fouling mechanisms as well as solute mass transport mechanisms and capabilities must be understood if NF of surface waters is to be successful. Nanofiltration of surface waters was evaluated at pilot-scale in conjunction with …
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Inactivation mechanisms of adenovirus from exposure to polychromatic ultraviolet light irradiation
Ultraviolet (UV) light is a drinking water treatment technology that has gained popularity as an alternative to control chlorine-resistant pathogens and comply with regulations on disinfection byproduct formation. Human adenovirus (HAdV) is found in water sources around the world and can cause …
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Finite fraction method for tracking desinfection by-product precursors in water treatment
… Rule (D/DBPR) and the Interim Enhanced Surface Water Treatment Rule (ESWTR). Both the latter two have provisions to limit the formation of disinfection by-products (DBP) by controlling reactivity and removal of DOM or both. Brief regulatory review of these rules was given. Although the …