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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 “"ion chromatography (IC)"”.
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A Study of the Behavior of Chlorine and Organic Compounds During Combustion in an AFBC System
… understand the behavior of chlorine and the emission of organic compounds during combustion in an atmospheric fluidized bed combustion (AFBC) system. Inefficient, uncontrolled use of coal gives rise to organic emissions which can be detrimental to health. The chlorine in coal may cause corrosion …
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IDENTIFICATION AND QUANTIFICATION OF IONIC POLLUTANTS IN ENVIRONMENTAL WATER
This dissertation depicts research efforts aimed at developing analytical methods for the determination of both cationic and anionic pollutants in environmental water. In chapter 2, a DNA-based molecular beacon fluorescent sensor was demonstrated for the detection of a cationic pollutant, namely …
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CMB7 receptor modelling of airborne particulate matter in the Vaal Triangle
… programme was to do a one year source apportionment study of airborne particulate matter in the Vaal Triangle. The V AM programme was undertaken by Mintek, in South Africa. Three receptor sites were set up, oneea.ch in the Central Business District (CBD) of Vereeniging, Vanderbijlpark and …
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Role of Li and B bearing fluids in crystallization and alteration of granitic pegmatites, San Diego, California
… San Diego County pegmatites occur in the Mesozoic Peninsular Ranges Batholith that stretches from southwestern California to Baja California, Mexico. These zoned, lithium-cesium-tantalum type pegmatite dikes intruded between 2 and 3 kbar and thus contain miaroles, or "pockets," that may contain …
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Effect of Carbonaceous Nanoparticles on Naturally Occurring Iron Reduction by Carboxylates
The emission of ambient particulate matter (PM) is regulated by many institutions due to the detrimental effects on health, environment and climate; yet many underlying mechanisms of PM reactivity are still not well understood. In the current study, the effect of carbonaceous nanoparticles (CNPs), …
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Hydrogeological characterisation and water supply potential of Lebalelo South, Limpopo Province of South Africa
Lebalelo area of Sekhukhune district is one of many areas in South Africa experiencing portable water scarcity, especially during prolonged dry season. Due to the dominance of low yielding aquifers in South Africa, it is essential to manage groundwater resources in these low yielding aquifers. …
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A Study of the Behavior of Chlorine and Sulfur from Coal During Combustion in an AFBC System
… as an energy source, environmental considerations must be examined. The purpose of this study is to understand the emission behavior of chlorine and sulfur during combustion in an atmospheric fluidized bed combustion (AFBC) system. A two-phase investigation was carried out in order to evaluate …
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Aquaponic biofilter system using heliconia sp. for ammonia removal in lake
… the natural water resources in Malaysia. The quick pace of development around many lakes catchment areas has a significant impact on water quality. Consequently, biofilter aquaponic system for ammoniacal nitrogen removal in lake near non-point sources such as oil palm plantation, factory and …
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Inorganic and organic speciation of atmospheric aerosols by ion chromatography and aerosol chemical mass closure
… (1) to measure major and minor inorganic ionic constituents by ion chromatography (IC) in atmospheric aerosol samples; (2) to determine low molecular weight dicarboxylic acids (DCAs) and methanesulphonate (MSA-) by IC and to assess their contribution to the water-soluble organic carbon …
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IODINE SPECIATION IN MARINE AEROSOL
… the marine boundary layer such as ozone destruction and new aerosol particle formation. Iodine has a complex chemistry in the gas and aerosol phases and to date, what controls iodine speciation, the interactions and roles of individual iodine species are not well understood. This research aims to …
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The investigation of ion-exchange properties of novel zwitterionic and amphoteric stationary phases and their application to the separation of inorganic and organic ions
Over recent years development of ion chromatography (IC) has focused on new phase technologies to s~multaneously increase efficlency and vary selectivity. To increase selectlvlty it IS necessary to develop new selective ]on-exchangers by varying the nature of functional groups and the matrix of the …
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An investigation of some chromatographic and electrophoretic seperations for industrial and clinical applications
Chromatographic techniques, such as high performance liquid chromatography (HPLC) and ion chromatography (IC), have traditionally been employed in the analysis of a variety of analytes, such as inorganic anions, organic acids and pharmaceuticals. Capillary electrophoresis (CE) methods have recently …
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Physical and geochemical characterisation of canal sediments in the Black Country, West Midlands.
… including pedology, chemistry, pollution science and medicine. Within the scientific community, emphasis has usually been placed on the toxic elements, such as cadmium, chromium, lead and arsenic, but rarely has there been consideration of interactions between PHEs, the sediment matrix …
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Investigation of Dairy Wastewater Using Biowish
… bacterial mixes’ ability for enhanced degradation of biochemical oxygen demand (BOD), solids, and nitrate concentrations. The dairy wastewater was augmented with various bacterial composition obtained from BiOWiSH<sup>TM</sup>. The bacterial mixes experimented were US Aqua, Thai Aqua, BMT, …
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Influence of impurities on the crystallisation of pharmaceutical materials
… describes work done to investigate the organic and inorganic impurity content in metformin hydrochloride samples and their effect on induction time and nucleation kinetics. Crystallisation from solution plays a significant role in the pharmaceutical, chemical and food industry, because it is …
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The synthesis of calcium phosphate from municipal wastewater and its application for the removal of metals from acidic effluents
The contamination of the environment with wastewaters emanating from different operations and industrial activities has been an issue of prime concern to national and international research communities. Grossly, acid mine drainage (AMD) and municipal wastewater (MWW) are the most common waste …
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Trace element concentrations in geothermal springs and their impact on soil and vegetation in Siloam and Tshipise
… Springs are scalding geothermal springs geologically located within the Soutpansberg Group in the Limpopo Province of South Africa. These geothermal springs are associated with faults and impermeable dykes and are assumed to be of meteoric origin. The optimal use of a geothermal spring largely …
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Simulated solar light assisted photocatalytic degradation of organic matters
The increasing human population combined with overexploitation of water resources for domestic purposes, industry, and irrigation, has resulted in a shortage of freshwater supply in many parts of the world. Advanced oxidation processes (AOP) have been applied widely to water and wastewater …
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Ionic Characterization of Laundry Detergents: Implications for Consumer Choice and Inland Freshwater Salinization
… systems – also called the Freshwater Salinization Syndrome (FSS) – can have far-ranging implications for the natural and built environment, agriculture, and public health at large. Such risks are clearly on display in the Occoquan Reservoir – a drinking water source for roughly one million …