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 20 of 38 for “"Water treatment facilities"”.
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Manganese oxide deposits in water treatment facilities, North East Scotland.
… to examine the deposition of manganese oxides in water treatment facilities. To facilitate this work, suitable sources of manganese oxide were located in water treatment plants throughout the Grampian region of Scotland. These oxides provided an ideal and abundant media on which this work could be …
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Investigation of occurrence, elimination and degradation of pharmaceutical and personal care products in drinking water using liquid chromatography-tandem mass spectrometry
… However, their presence in natural and treated water system as emerging contaminates may have potentially adverse effects on the aquatic environment and cause development of bacterial resistance. In this research project, a comprehensive liquid chromatography tandem mass spectrometry method has …
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An economic approach to water supply planning in southeastern Virginia
… was conducted of alternative responses to the water supply situation in four cities in southeastern Virginia. Cost/benefit analyses were performed for the provision of projected levels of use and for reductions in those levels of use achieved with the use of quotas, price increases, and water …
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An investigation into biological treatment of fruit cannery wastes
… to both the farms and railheads. The wastewaters generated by the numerous canneries vary greatly in composition - being dependent upon the particular fruit or vegetable being processed. The wastes generally have high BOD or COD concentrations (mainly due to sugars and starches) and low …
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Surface Enhanced Raman Spectroscopy as a Tool for Waterborne Pathogen Testing
The development of a waterborne pathogen detection method that is rapid, multiplex, sensitive, and specific, would be of great assistance for water treatment facilities and would help protect water consumers from harmful pathogens. Here we have utilized surface enhanced Raman spectroscopy (SERS) in …
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Impact of bark beetle infestation on water quality and hydrology in the Rocky Mountain West, The
… Mountain West. With canopy loss and changes in water and nutrient uptake, watershed hydrology and terrestrial biogeochemical cycling have been significantly altered. This dissertation contributes to our scientific understanding of these intertwined processes by addressing predicted hydrologic …
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Strategies for reducing the mutagen content of chlorinated aqueous media
… which can be released into potable waters or from industrial facilities, technologies for monitoring the concentration, reducing the quantity, and inhibiting the formation of this compound were investigated. Adsorption of the chlorinated hydroxyfuranone from laboratory systems (pH …
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Effects of Extracellular Polymeric Substance Composition on Bacteria Disinfection by Monochloramine
… and Disinfection By-product Rules (DBPRs), many water treatment facilities in the United States began to utilize chloramines as their primary or secondary disinfectant. Although chloramines have been known to have better efficiency for biofilm control than chlorine, our understanding of the …
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Characteristics of Stakeholder Networks Supporting Institutional Development in Rural Water Service Delivery
… cases of institutional development in rural water sectors in Ghana, Malawi, India, Tajikistan, and Bolivia. Institutions studied included local governments, a national government institution, and community operator committees managing water treatment facilities. Interviews with 162 …
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The Impact of Aluminum on the Initiation and Development of MnOx(s) Coatings for Manganese Removal
Many treatment facilities remove soluble Mn by an autocatalytic adsorption-oxidation process involving manganese oxide (MnOx(s))-coated filter media and a free chlorine residual known as the natural greensand effect (NGE). In recent years, significant amounts of aluminum (Al) have been found …
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A Sustainable Bio-Solids Management For The Grand Forks Wastewater Treatment Plant
<p>The Grand Forks Waste Water Treatment Plant (GFWWTP) is currently sending its waste activated sludge (WAS) from the activated sludge treatment process to an existing on-site wastewater treatment lagoon which has been in operation since 2003. The plant produces approximately 65,000 gallons of WAS …
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Assessing Macroinvertebrate Community Recovery in Post Restoration Silver Bow Creek, Montana
… metals. In the mid nineteen seventies, up-stream water treatment facilities were upgraded and water quality improved, bringing benthic invertebrates back to reaches of Silver Bow Creek. The extent and concentration of toxicants in and around the streams of the Upper Clark Fork River Basin resulted …
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Assessing Macroinvertebrate Community Recovery in Post Restoration Silver Bow Creek, Montana
… metals. In the mid nineteen seventies, up-stream water treatment facilities were upgraded and water quality improved, bringing benthic invertebrates back to reaches of Silver Bow Creek. The extent and concentration of toxicants in and around the streams of the Upper Clark Fork River Basin resulted …
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Climate Change and Health in Ireland: A national vulnerability assessment
… rainfall and flooding occur, the incidence of waterborne disease may increase, particularly in areas where the water supply is predominantly from private wells, and in areas where water treatment facilities are inadequate. The possibility of increases in other infectious diseases, including …
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Development of Soluble Manganese Sorptive Contactors for Enhancing Potable Water Treatment Practices
Without proper removal at a water treatment facility, the soluble manganese (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 …
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Evaluation of an enhanced magneto-chemical process for the removal of pathogens in wastewater
<p>New wastewater treatment technologies are a necessity as a result of increasingly stringent discharge standards, particularly concerning viruses. The traditional approach to wastewater treatment consists of biological treatment, such as trickling filters, biofilms, and activated sludge. Although …
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Effect of Addition of High Strength Food Wastes on Anaerobic Digestion of Sewage Sludge
… (COD) has been an area of interest for waste water treatment facilities looking to increase methane production, and at the same time, dispose of the wastes and increase the revenue. However, addition of food wastes containing fats, oils and grease (FOG) to the conventional anaerobic digestion …
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Trusted Software Updates for Secure Enclaves in Industrial Control Systems
… (ICSs) manage critical infrastructures such as water treatment facilities, petroleum refineries, and power plants. ICSs are networked through Information Technology (IT) infrastructure for remote monitoring and control of physical processes. As ICSs integrate with IT infrastructure, IT …
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The Comparative Study between the Adsorptive Capacity of Activated Carbon Obtained from the Enhanced Hydrothermal Polymerization Process with Conventional Activated Carbons in the Removal of Micropollutants of Concern
… widely used techniques employed for the tertiary treatment of wastewater to remove micropollutants. One of the most popular adsorbents used towards adsorption is activated carbon. However, due to the high cost of the conventional commercial activated carbon (produced from coal, which is a finite …
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Toxic cyanobacteria, cyanotoxins and drinking water production in Ghana: implications to human health
… of cyanobacteria and their toxins in drinking water reservoirs and water supplies have engaged the attention of many scientists worldwide due to their negative effects on population health. The cyanotoxin, microcystin, the main focus of this research has been responsible for much documented …
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