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 19 of 19 for “"Membrane technologies"”.
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Studies of the complexation behaviour of transition metals applicable in membrane technologies
… Due to very strict discharge values, new technologies are constantly emerging for treating and purifying all kinds of wastewater. One of these innovative technologies is the Supported Liquid Membrane (SLM) technique. The SLM technology is a membrane-based solvent extraction method that …
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Evaluation wastewater treatment technologies at Ford Powertrain
… assesses various seconctary wastewater treatment technologies. The three water purification technologies, membrane filtration, biological treatment, and clay media adsorption, were evaluated as secondary water treatment solutions for oily wastewater. Three different types of membrane technologies …
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Development of Innovative Ultra-Filtration Fibre Technologies for Waste-Water Treatment in Membrane Bio-Reactors (MBR)
… of advanced hollow fibre ultrafiltration (UF) membrane technologies for use in wastewater treatment facilities has culminated from a combination of improvements in plant operation and optimising feed water interactions. With global demands in water quality increasing, this has placed increased …
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Hybrid organic-inorganic pervaporation membranes for desalination
Membrane desalination using reverse osmosis (RO) has been the leading candidate technology for supplying fresh water in recent years. However, there is a strong motivation for improving the established membrane process and/or developing alternative membrane technologies to overcome the limitations …
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Advances in membrane-based oil/water separation
… of produced water is generated every day. Membrane technologies have emerged as the preferred method for treating these wastewaters; this has allowed operators to reclaim and reuse fresh water for potable, industrial, and agricultural use and to meet waste discharge regulations. Yet, …
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Removal of Endocrine Disrupting Compounds Using Membrane Bioreactor
… degradation and extreme low concentrations. Membrane bioreactor (MBR) used in this study is novella better water reclamation technology that shows several advantages including stable operation conditions due to long solid retention time (SRT); concentrated mixed liquor suspended solids …
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Pathogen Removal by Secondary and Advanced Water Reclamation for Water Reuse
… potable reuse treatment systems are based on membrane technologies that are energy intensive and produce brines whose disposal is a challenge in inland regions. Ozone-biological activated carbon (ozone-BAC) based advanced water treatment technologies are emerging as an appealing alternative; …
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The Removal and Recovery of Oxo-Anions from Aqueous Systems using Nano-Porous Silica Polyamine Composites
… Although there are several metal remediation technologies available commercially, most of them are not feasible and/or are very expensive. The ferrihydrite process (precipitation with iron (III) oxyhydroxides) is by far the most economical and effective of these technologies and has been …
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The Removal and Recovery of Oxo-Anions from Aqueous Systems using Nano-Porous Silica Polyamine Composites
… Although there are several metal remediation technologies available commercially, most of them are not feasible and/or are very expensive. The ferrihydrite process (precipitation with iron (III) oxyhydroxides) is by far the most economical and effective of these technologies and has been …
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Saturation curve analysis of humidification-dehumidification desalination systems and analysis of reversible ejector performance
… systems are investigated. Secondly, ejector technologies are analyzed as a means of powering desalination systems thermally. Thermal desalination systems offer advantages over membrane technologies in terms of robustness. They are less prone to scaling and fouling and capable of treating feed …
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Design and testing of an integrated catalytic membrane reactor for deoxygenating water using hydrogen for down-hole injection and process applications.
… this can be seen to be achievable by employing membrane technology. Membrane technologies provide compactness and are already applicable in other water treatments like reverse osmosis. In this study, inorganic tubular ceramic membranes with highly dispersed catalytic metals: palladium and …
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Solvent resistant microporous/nanoporous polymeric hollow fiber and flat film membranes and their applications
… process streams may be carried out by membrane processes such as nanofiltration/ultrafiltration/microfiltration and membrane solvent extraction. Lack of solvent stability and chemical stability of most commercially available membranes is limiting the utilization of the above mentioned …
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Development and physicochemical characterization of thin-film composite nanofiltration membranes with covalent organic framework active layers
… water treatment methods, pressure-driven membrane technologies are advantageous because they offer an effective single-step process for removing pathogens along with organic and inorganic contaminants. Despite their advantages, technical advances, and the development of novel membrane …
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Engineered osmosis technology for desalination of oil and gas exploration wastewaters: assessment of membrane performance and process sustainability
… and minimal field resources. An emerging membrane technology that can treat impaired water for industrial reuse is forward osmosis (FO). In FO, a highly concentrated draw solution imparts an osmotic pressure difference across a semipermeable membrane to extract water from impaired feed …
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Simulation, Fabrication, and Characterisation of Ion Track-Etched Asymmetric Nanopores in Thin Amorphous SiO2 Membranes
… throughput rates that nanopores in ultrathin membranes provide with the highly asymmetric transport properties characteristic of long, conical nanopores. This work investigates conical nanopores in thin amorphous SiO2 (a-SiO2) membranes fabricated using ion track etching. 1 um thin a-SiO2 …
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Simulation, Fabrication, and Characterisation of Ion Track-Etched Asymmetric Nanopores in Thin Amorphous SiO2 Membranes
… throughput rates that nanopores in ultrathin membranes provide with the highly asymmetric transport properties characteristic of long, conical nanopores. This work investigates conical nanopores in thin amorphous SiO2 (a-SiO2) membranes fabricated using ion track etching. 1 um thin a-SiO2 …
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Gas diffusion transport characteristics and mathematical description of membrane systems with application for biogas upgrading.
… for use as a renewable energy source using membrane technology. The study began with observing the behaviour of biogas components as they travel selectively through the membrane support. This was done by conducting gas permeation tests to experimentally show how methane and carbon dioxide …
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Development of cost effective materials for use as hydrogen purification membranes
… through steam reforming of hydrocarbons, and membrane technologies offer the potential to greatly reduce the cost of H2 purification over conventional separation strategies. The goal of this thesis was to further develop a class of novel, earth abundant membranes for use in hydrogen …
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Ammonia Recovery from Digester Centrate with Electrochemical Membrane Systems: Mechanism, Performance, and Application
… nitrogen management. Electrochemical and membrane technology are emerging technologies that can achieve ammonia recovery with high recovery efficiency, while many of the those are still energy- and chemical-intensive. These motivate us to develop novel integrated membrane and …