Global ETD Search
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Showing 1 to 8 of 8 for “"leaching study"”.
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Mineralogical and ion-exchange leaching study of a Rare Earth Element (REE) bearing ion-adsorption clay deposit
… electron microscopy (TEM). The geochemical leaching characteristics of the clay mineral were investigated using a sequential leaching program, targeting ion-exchangeable REE on kaolinite, halloysite, REEorganic matter and mineral phase. Ammonium sulphate leach experiments were conducted, …
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The Persistence of Acid Mine Drainage at an East Texas Coal Mine
<p> The objective of this study was to estimate the time it will take for acid forming materials (pyrite) to be weathered to a state of equilibrium and thus cease to produce acid in ground and surface waters within Oak Hill Mine. This was accomplished using an ex-situ kinetic leaching study …
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The influence of fly ash additions on acid mine drainage production from coarse coal refuse
… of acid mine drainage. A preliminary column leaching study examined the leachate quality from acid-forming coal refuse:fly ash blends. Coal refuse (2.2 % total-S), and two refuse:fly ash blends (20% and 33% ash w/w) were packed into leaching columns and leached under unsaturated conditions …
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Endotoxin removal from protein solutions by immobilized metal ion affinity chromatography
… chromatography (IMAC) has been developed in this study. Fe^{3+} was charged to a chelating gel that contains iminodiacetic acid (IDA). The IDA- Fe^{3+} IMAC column was exploited to remove endotoxin from protein solutions. This method involves the adsorption of the endotoxin on IMAC column. More …
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The impact of biochar on soil functioning in two contrasting climates
… and chemical characteristics, reduces nutrients leaching, increases crop yield and enhances microbial activity in the soil. This has attracted significant research interest into the effects of biochar application on soil in recent years. However, the literature on tropical soils following biochar …
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Fullerene Based Nanomaterials for Biomedical Applications
… be performed as the radiotherapeutic agents; the leaching study is performed to test the stability of carbon cage after irradiation. Appendix C briefly shows a new method to develop Gd3N@C80 based targeting platform, which can be used as the probe for chronic post-traumatic osteomyelitis.
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Residence time investigation of artificial silver ores in heap leaching using cyanide lixiviant
Heap Leaching has gained much relevance in the processing of low-grade mineral resources - ores considered uneconomical for beneficiation through conventional concentration and tank leaching. However, it is at the same time characterized by extended leaching periods due to slow mineral conversion …
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The effect of spent mushroom compost on soil conditions and plant growth
… limited scope. Therefore the objectives of this study were to: evaluate the effect of SMC on soil chemical and physical properties, and on the yield of three vegetable species; to determine the rate of nutrient release from SMC amended soil, and to describe this release using kinetic models; to …