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 159 for “"Water -- Purification"”.
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Microfluidic engineering of water purification
The demand for clean water has been increasing for several reasons, such as rapid industrialization of developing countries, environmental pollution and climate change, and development of biofuels and the resulting irrigation growth. To meet the needs for this growing demand for clean water, …
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Shear-Spun Polymer Nanofibres For Water Purification
Access to clean drinking water remains an issue for hundreds of millions of people across the globe, a problem that can be addressed through proper water filtration. Unfortunately, those most severely affected by a lack of access to clean drinking water are also those least able to financially or …
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Application of electrospun fiber membranes in water purification
… of emulsions of oil (dodecane) in water using electrospun PA6(3)T membranes was demonstrated. Rejection of the emulsified dodecane decreased from (85 +/- 5) % to (4.3 +/- 0.9) % when the ratio of droplet diameter to fiber diameter (dp/df) decreased from 2.5 +/- 0.4 to 0.57 +/- 0.04, …
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Water purification in Haiti : An engineers without borders project
… an organization focused on improving their water quality. It goes through the technology needed to create the organization and explains the procedures for implementing a charitable project in a foreign country. A narrative of the student project in Milot, Haiti, where students from the New …
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PHOTOACTIVE HYBRID GRAPHENE-BASED POLYMERIC MATERIALS FOR WATER PURIFICATION
… photocatalysts becoming appealing in water purification applications. The principal goal of this thesis is to present insights into hybrid graphene preparation and characterization describing also a variety of polymer synthetic strategies for the development of high-potential …
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Silicic acid, its influence and removal in water purification
Made available in DSpace on 2017-11-30T21:03:37Z (GMT). No. of bitstreams: 2 6001933.pdf: 5805844 bytes, checksum: 8eefa850c70a1d1c28f71fac3a90e0c1 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1919
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The application of solar desalination for water purification in Cyprus
This thesis initially reports on the water resources of Cyprus. From this analysis the need for desalination systems to provide fresh water, is established.<br/><br/>A survey of solar desalination systems shows that there arc two broad categories of such systems; namely direct and indirect …
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Nanophotonics-enabled Solar Membrane Distillation for Off-grid Water Purification
… a billion people lacking accessible drinking water, there is a critical need to convert non-potable sources such as seawater to water suitable for human use. However, energy requirements of desalination plants account for half their operating costs, so alternative, lower-energy approaches are …
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Nanocellulose-based materials for sustainable soil remediation and water purification
Soil and water pollution are intricately linked environmental issues that have gained significant global attention due to their adverse effects on ecosystems, public health, and overall sustainability. In this dissertation, the pressing need for sustainable pollutant treatment using ecofriendly and …
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Shock electrodialysis for water purification and electrostatic correlations in electrolytes
… systems have become an important part of many water supply networks, and they have also been considered as solutions for water shortages and in areas in which access to clean and safe water is still a problem. The quality of available water that is encountered in these situations tends to vary …
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Design of advanced reverse osmosis and nanofiltration membranes for water purification
… are being developed from polyimides for water and wastewater treatments. The following three projects have resulted from my research. (1) Positively charged and solvent resistant NF membranes. The use of solvent resistant membranes to facilitate small molecule separations has been a long …
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Nanoporous monolayer graphene membranes for water purification : from concept to realization
… a new class of highly permeable membranes for water purification and desalination. Though atomically thin, graphene exhibits both exceptional mechanical strength and imperviousness to atoms as small as helium. High-density, subnanometer pores within graphene have the potential for ultra-fast …
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Electrospun and Vapor-Phase Deposited Electroactive Polymer Nanocomposites for Water Purification via Photocatalysis
… threat to humans considering the global drinking water scarcity that has been increasing for the past two decades. Existing techniques used to remove organic pollutants from water are adsorption, reductive and oxidative processes, bioremediation, separation by membranes, phytoremediation, …
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Design and Development of Scalable Solar Powered Water Purification Systems for Developing Nations
… the design and development of solar powered water purification systems. The systems were designed to meet specific customer requirements that were established from the experiences gained after the installation of five water purification systems in various Haitian communities. The systems are …
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Scalable, Solar Powered Membrane-Based Water Purification Systems for Community Development in Developing Countries
… University (ERAU) to deliver sustainable water purification systems and originate a companion micro-business to sell excess clean water in communities in Haiti. Since 2010, students and faculty from ERAU have partnered with strategic partners to not only provide clean water to their …
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Molecule transport in nanopores with applications to water purification, power generation and disease diagnosis
High performance water transport in nanopores has drawn a great deal of attention in a variety of applications, such as water desalination, power generation and biosensing. A single-layer MoS2 nanopore is shown, here, to possess high water transport rate and strong salt rejection rate making it …
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