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 13 of 13 for “"Sorbent Materials"”.
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Development of teawaste based bio-sorbent materials for removal of Cr(VI) from wastewater
… control. <br/><br/>In this research bio-sorbent materials for application in hexavalent chromium removal from waste water were produced and evaluated. The teawaste material was collected from local cafeteria. First, the teawaste material was mixed with bleach until the teawaste paste …
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Sorption-based atmospheric water harvesting: from atoms to applications
… (SAWH) is the extraction of water vapor using sorbent materials across a broad spectrum of relative humidity, which opens new avenues to address water scarcity faced by two-thirds of the world’s population. SAWH technologies gained significant attention in 2017 with the development of a …
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System-level Design, Fabrication, and Optimization of Sorbent-based Atmospheric Water Harvesting Devices
… technologies are limited. However, current sorbent materials are often limited in their applicability due to system integration and device design constraints. In this thesis, we present advancement of atmospheric water harvesting technologies in both the passive and active design space by …
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Application of carbonated calcium silicate materials in metal sorption processes
… proposes a novel approach to the production of sorbent materials, which integrates recycling of calcium silicate-based industrial residues and sequestration of carbon dioxide in the process of accelerated carbonation. The concept was tested on model substrates of suitable mineralogy, namely …
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The Reactivity of Chemical Warfare Agent Simulants on Carbamate Functionalized Monolayers and Ordered Silsesquioxane Films
… development of effective sensors, filters and sorbent materials. Polyurethane coatings are used by the armed forces as chemical agent resistive paints to limit the uptake of CWAs on surfaces, while the use of metal oxides has been explored for decontamination and protection purposes. To better …
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Evaluation of sorbents for the cleanup of coal-derived synthesis gas at elevated temperatures
… efficiency for IGCC is through the use of solid sorbents that operate at elevated temperatures. Because many of these technologies are in their infancy and have yet to be commercially demonstrated, a strong desire exists to develop methods to critically evaluate these technologies more rapidly …
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AN EXPERIMENTAL INVESTIGATION INTO THE EFFICIENCY OF FILTER MATERIALS FOR PHOSPHATE REMOVAL FROM WASTEWATER
… investigation of different sorts of low-cost materials has been shown to be an attractive solution as phosphate sorbent materials PSMs, which represents a sustainable solution based on economical and environmental factors. This PhD study seeks to determine materials that are capable of …
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Mercury methylation potentials in sediments an ancient cypress wetland using species-specific isotope dilution-GC-ICP-MS: Analytical method development and the effect of sorbent amendments
… method was validated using certified reference materials including sediment (NIST 2709), leaves (NIST 1547), and fish-muscle (DORM-3), with recoveries within 8% of Hg certified values. The limit of detection was 0.37 pg, nearly two orders of magnitude lower than the DMA alone. For external …
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Fabrication of Biomass-Polymeric Adsorbent for the Removal of Selected Metal Species, Nutrients and Pathogens in Aqueous Solutions
… and evaluated a systemic biomass polymeric adsorbent for the removal of toxic metals such as chromium and cadmium ions, nutrients (nitrate and phosphate ions), and pathogens from aqueous solutions. The bio-sorbent was fabricated by incorporating biomass (grapefruit peels) and algae (diatom) on …
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Physics and Engineering of Moisture-Capturing Hydrogels for Water and Heat Harvesting
… performance and large scalability lies in the sorbent material, which controllably captures and releases the moisture from the air. The last two hundred years have seen the exploration and development of numerous sorbents. However, these sorbents still suffer from performance limitations, …
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Investigation of adsorbent-based warm carbon dioxide capture technology for IGCC system
… capital intensive contributing to the problem. Sorbent-based warm CO₂ capture has been predicted to be a key enabling technology for lowering down the costs of IGCC-CCS. However, no commercial adsorbents or processes exist for these warm CO₂ separations. My thesis work has been devoted to …
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Evaluation of stormwater control measures for the removal and fate of legacy and emerging contaminants
… for dissolved PFAS through the use of sorbent polishing beds. Using real concentration and flow data from an airport affected by aqueous film forming foam (AFFF), the study estimated the required adsorber bed volumes, sorbent masses, and capital costs for different sorbent materials. …
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Sorption and release of dissolved pollutants via bioretention media.
… related to the removal of toxic metals using materials commonly found in bioretention practices, such as MNDOT Grade 2 compost and C-33 sand. Third Chapter 1 reviews the sorption mechanisms and important variables that aid or hinder sorption of toxic metals to organic materials. Lastly, …