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Showing 1 to 11 of 11 for “"manganese oxidation"”.
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Understanding The Molecular Mechanism Of Manganese Oxidation In Leptothrix Discophora Ss1
… is to understand the molecular mechanism of manganese oxidation in Leptothrix discophora SS1 which until now has been hampered by the lack of a genetic system. Leptothrix discophora SS1 is an important model organism that has been used to study the mechanism and consequences of biological …
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A Novel Manganese Oxidising Bacterium: Characterisation and Genomic Evaluation
The production of manganese oxide minerals is predominantly mediated by microbes, resulting in the formation of highly redox active minerals which influence the geochemical cycling of many elements; including carbon, nitrogen, sulphur and many metals. This thesis describes the characterisation and …
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Recovery and regeneration of lithium manganese oxide from spent lithium-ion batteries
… a method for recovering and regenerating Lithium Manganese Oxide (LMO) from spent Lithium-polymer batteries in order to recycle it in an environmentally friendly way. Two different processes for separating LMO were developed and the environmental impact of the two processes was analyzed. A process …
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The effect of various oxidants on water treatment processes
… TOC, and color removal, as well as reduced manganese oxidation. Studies were conducted with an experimental water with enhanced TOC levels. Experimentation was accomplished by a series of jar tests in which solution pH, coagulant dose, and oxidant dose were varied. Results show that, in …
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The cobalt cycle in the Tropical Pacific Ocean
… coastlines, and 3) low-oxygen inhibition of manganese oxidation, which scavenges cobalt from the water column. Rates of scavenging are calculated from a global synthesis of recent GEOTRACES data and agree with cobalt accumulation rates in pelagic sediments. Because both sources and sinks are …
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The cobalt cycle in the tropical Pacific Ocean
… coastlines, and 3) low-oxygen inhibition of manganese oxidation, which scavenges cobalt from the water column. Rates of scavenging are calculated from a global synthesis of recent GEOTRACES data and agree with cobalt accumulation rates in pelagic sediments. Because both sources and sinks are …
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Manganese removal by oxidation and mixed-media filtration
Manganese is typically found in all water supplies in the United States. Manganese concentrations are usually higher in water obtained from groundwater sources or resei:voir hypolinutlons. This is because manganese is more soluble in the reducing conditions normally found in these waters. Although …
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PCR-Based Test for Differentiating Varieties of <i>Gaeumannomyces graminis</i>, The Take-All Pathogens
… abilities to produce avenacinase and to oxidize manganese. Avenacinase, an avenacin detoxifying enzyme, was associated with Gga pathogenicity for oats but this enzyme is not important in Ggt pathogenicity for wheat. Manganese oxidation was also correlated with Ggt virulence. In this study, …
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Design of active, stable, and earth-abundant acidic oxygen evolution catalysts
… The first version focused on an electrodeposited manganese oxide (MnOx) catalyst that is stable in acid but exhibits low OER activity. Kinetic and mechanistic analysis on deposition and oxygen evolution mechanisms show that its stability manifests from strong manganese-oxygen bonds and …
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Impact of Piping Materials on Water Quality in Tegucigalpa, Honduras
… reservoir experiencing biogeochemical cycling of manganese. Black water problems have been reported in the distribution system since 1998. An evaluation of the potential influence that PVC and iron pipes could have on the concentration of iron and manganese in drinking water, the effects caused by …
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Photochemical Formation Mechanisms and Applications of Mn Oxide Nanomaterials
<p>Manganese (Mn) oxides are ubiquitous in aquatic and terrestrial environments, and the rich redox chemistry of manganese is of interest in engineered systems, such as batteries and water oxidation catalysts. Mn oxides have large surface areas and are highly active in adsorption and redox …