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 257 for “"adsorbent"”.
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Development of adsorbent materials for phosphate recovery
… process is developed focused on the synthesis of adsorbent materials for phosphate selective adsorption, its recovery through multiple adsorption and desorption cycles, followed by its reuse for fertilizer production. Overall, this thesis demonstrates the efficient recovery and reusability of …
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Synthesis and Characterization of Novel Adsorbent Fibers
This thesis is devoted to the design and development of three novel fibrous systems where the unique properties of commercially available activated carbon fibers (ACFs) were used as a foundation. In the first system, sulfonated pyropolymeric fibers derived from phenol-formaldehyde resins serve as …
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Engineering advanced adsorbent materials for CO₂ capture applications
… CO<sub>2</sub> capture technologies using adsorbents have not been implemented commercially due to lack of scalable, practical and cost-effective strategies and are still under development. Moreover, the use of conventional configurations such as pellets and beads for the removal of …
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The utilization of peanut hulls as liquid adsorbent chars
… which peanut hulls could be converted to liquid adsorbent chars.
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Cellulose-metal organic framework nanocomposite adsorbent films for water remediation
This study evaluates the effectiveness of adsorbent films for the adsorptive removal of organic dyes, particularly methylene blue (MB) from aqueous solutions. The adsorbent films consist of solvothermally synthesized metal-organic framework (MOF)/crystalline nanocellulose (CNC) composites, …
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Investigation of adsorbent-based warm carbon dioxide capture technology for IGCC system
… the costs of IGCC-CCS. However, no commercial adsorbents or processes exist for these warm CO₂ separations. My thesis work has been devoted to developing a solid sorbent and CO₂ capture process which can capture CO₂ at an elevated temperature in IGCC system. By combining experimental methods …
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The chlorination of midlothian coal to produce a liquid adsorbent active carbon
… in addition to the general property of being adsorbent to foreign molecules. A gas adsorbent carbon should be dense with a rather small pore size; while liquid adsorbent carbons should be less dense, not triable, easily filterable from solutions, and have a larger pore size than the gas …
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Catalytic and adsorbent properties of solid acid catalysts studied by ammonia adsorption microcalorimetry
Solid acid catalysts are becoming of great importance within the chemical industry and their acidity is of great interest, as this determines their application, plus many of their catalytic properties can also be directly related with their acidity. There has been a drive towards heterogeneous …
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Rational construction by molecular dynamics modeling and simulations of porous adsorbent media for bioseparation
<p>"Ion-exchange chromatography employing porous adsorbent particles or monoliths in which charged ligands are immobilized onto polymeric extender molecules grafted on the pore surfaces of a base matrix has become a very important method for bioseparations. In this dissertation, a novel fundamental …
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Monitoring and control of electrothermal swing adsorption based on electrical properties of the adsorbent
… regeneration that damages the system and/or adsorbent. For this research, a method was developed to monitor and control ACFC-ESA that eliminates the need for hydrocarbon and direct-contact temperature sensors. This method provides the ability to monitor the electrical properties of the ACFC …
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Integrated processing of brewer's spent grain into value-added protein feedstuff and cellulose adsorbent
… and 4) explore the potential use of cellulose adsorbent obtained from the FP in removing heavy metals from contaminated water. To attain these objectives, BSG was first subjected to a wet fractionation process to produce PP and FP using different chemical/biological treatments, where the …
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Development of Advanced Adsorbent-beds for Storing Thermal Energy Derived from Solar and Waste Heat
… addressed in the research is the integration of adsorbents with solar thermal energy storage systems, a relatively underexplored avenue. The study explores diverse configurations, analyzing their impact on enhancing thermal energy storage performance. Through meticulous experimental analysis …
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Adsorbent-based algal cultivation system to facilitate integration of algal biofuel production with wastewater treatment
… this study reports on the development of a novel adsorbent-based algae cultivation system that improves the efficiency and reliability of integrated systems that provide both wastewater treatment and sustainable algal biomass production at a reasonable cost. Chapter 3 investigated the benefits of …
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Treatment of natural rubber wastewater using oil palm empty fruit bunch, kaolin and zeolite as composite adsorbent
The development of composite adsorbents is a new technique applied in wastewater treatment. A combination of few absorbents is proven to be capable of removing pollutants simultaneously compared to a single adsorbent. Thus, the aim of this study is to produce a composite adsorbent from natural …
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Characterization and kinetics study of activated coconut shells, cow bones and zeolite based adsorbent for pome treatment
… objective of this study was to prepare composite adsorbent from activated coconut shell carbon (ACSC), activated cow bone powder (ACBP) and zeolite for the treatment of POME using the optimum particle size obtained in a batch adsorption study. The characterization of the ACSC, ACBP and zeolite was …
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Roles of Background Compound Molecular Size and Adsorbent Pore Size Distribution in Competitive Adsorption on Activated Carbon
… SA Super and SA UF, as well as one proprietary adsorbent which consisted of extensive secondary micropore and mesopore volumes, labeled as Pellet II, were evaluated for atrazine adsorption in the presence of CR in order to assess the role of PSD on competitive adsorption. The capacity for CR …
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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) …
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Application of palm shell activated carbon filter as a medium of indoor air contaminant adsorbent for indoor air quality improvement
For decades, the inclusion of activated carbon (AC) adsorption technique through filtration has gained significant interest on improvement of indoor air quality (IAQ) by reducing level of pollutant. The interest of reseachers in palm shell AC (PSAC) keep increase owing to the fact that this …
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