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 381 for “"desalination"”.
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Improving seawater desalination and seawater desalination brine management
… is an increasing problem globally. Seawater desalination is increasingly being relied upon as a means of mitigating the problem of water scarcity. However, seawater desalination has costs associated with it: capital costs, cost of energy to desalinate and environmental costs from the …
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Directional solvent extraction desalination
… industry. Development of effective, affordable desalination and water treatment technologies is thus vital to meeting future demand, maintaining economic development, enabling continued growth of energy resources, and preventing regional and international conflict. We have developed a new low …
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Pressure Driven Desalination Utilizing Nanomaterials
… demonstrated excellent properties for membrane desalination, including decrease of maintenance, increase of flux rate, simple solution casting, and impressive chemical inertness. Here, two projects are studied to investigate nanocarbon based membrane desalination. The first project is to prepare …
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Organic fouling of desalination membranes
Energy-ecient desalination and water reuse are necessary to ensure universal access to clean water. Reverse osmosis (RO) is the most ecient desalination process for almost any water source, but it is susceptible to membrane fouling, which can reduce product water quality and raise energy …
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Analysis and Modelling of Desalination Brines
Seawater desalination constitutes an important water supply to the population bordering the Arabian Gulf, the Mediterranean Sea and the Red Sea. The three regions represent about 11.8% of the world land area and the countrieshosted approximately 9% of the world population in 1950 and 2008 and are …
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The convective desalination of sea ice
… content of sea ice decreases, namely convective desalination, which is also often called gravity drainage by geophysicists. Modelling convective desalination requires an understanding not only of the thermo-dynamics of sea-ice growth but also of its internal fluid dynamics. This thesis considers …
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Membrane distillation for high salinity desalination
… flash distillation (MSF) is evaluated for desalination, brine concentration, and produced water reclamation applications. A wide range of solution concentrations were accurately modeled by implementing Pitzer's equations for NaCl-solution properties. The viability of MSVMD use for zero …
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Economics of seawater desalination in Cyprus
… farming citrus. To do so means building seawater desalination plants that contribute 5.0 to 6.0 kg of CO 2, a greenhouse gas, to the atmosphere per m3 of water produced by desalination, along with the cost of the water nearing one US dollar per m3 . Desalination is a painful solution to Cyprus' …
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Irreversibilities and nonidealities in desalination systems
Energy requirements for desalination systems must be reduced to meet increasing global demand for fresh water. This thesis identifies thermodynamic limits for the energetic performance of desalination systems and establishes the importance of irreversibilities and solution composition to the actual …
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Brackish Groundwater Desalination: A Decision Support Tool
… whether to embark on a brackish groundwater desalination program for their utility. The scholarly literature review indicated five areas of greatest importance for consideration when contemplating a brackish groundwater project. Those topics included power source, source water availability, …
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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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Molybdenum disulfide nanoporous membranes for water desalination
… (MoS2) as a nano porous membrane for water desalination. By performing extensive molecular dynamics simulations, we find that a nanopore in a single-layer MoS2 can effectively reject salt ions and allow transport of water at a high rate. More than 88% of ions are rejected by membranes having …
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Superstructure optimization of hybrid thermal desalination configurations
… number of resources are dedicated to seawater desalination technologies. In areas with high temperature and salinity water, thermal desalination technologies are often employed. In other areas, reverse osmosis technologies are more popular. While both these technologies have witnessed …
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Assessing graphene oxide for water desalination applications
Water desalination plays a critical role in augmenting the fresh water supplies for water scarce regions. However, despite considerable improvements in system efficiencies, it still remains six to ten times more expensive than treating freshwater for drinking. As a result, the construction and …
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Nanoporous graphene as a water desalination membrane
Desalination is one of the most promising approaches to supply new fresh water in the face of growing water issues. However, commercial reverse osmosis (RO) techniques still suffer from important drawbacks. In order for desalination to live up to the water challenges of this century, a step-change …
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Methacrylic membranes for desalination by reverse osmosis,
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1968.
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Modeling nanofiltration for large scale desalination applications
… the data obtained from a large-scale seawater desalination plant, thereby establishing a reliable model for desalination using nanofiltration.
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Advancing Microbial Desalination Cell towards Practical Applications
Conventional desalination plant, municipal water supply and wastewater treatment system are among the most electricity-intensive facilities. Microbial Desalination Cell (MDC) has emerged as a promising technique to capture the chemical energy stored in wastewater directly for desalination, which …
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