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 7 of 7 for “"Sulphur recovery"”.
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A novel semi-passive process for sulphate removal and elemental sulphur recovery centred on a hybrid linear flow channel reactor
… followed by its partial oxidation to elemental sulphur, which is stable and has potential as a value-added product. A promising approach to achieve partial oxidation is the use of sulphide oxidising bacteria (SOB) in a floating sulphur biofilm (FSB). These biofilms develop naturally on the …
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Experimental improvement of flyash as a growth medium for plants through addition of selected solid wastes
… for inclusion in this study included interphase sulphur, a Vcontaminated waste sulphur product from the sulphur recovery plant at the SASOL' s Secunda petrochemical production facility and Catpoly, a spent catalyst consisting of phosphoric acidimpregnated diatomaceous earth, also obtained from …
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Optimisation of a linear flow channel reactor for semi-passive, simultaneous biological sulphate reduction and partial sulphide oxidation
… it from the stream in gaseous form or as a solid sulphur-containing compound. Alternatively, it can also be used, in part, to precipitate metals present within ARD waters. Key challenges associated with SRBbased bioremediation include the cost of the supplemented electron donor needed for SRB to …
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The determination of the effects of physical and chemical parameters on the column flotation cell, performance in the flotation of pyrite
… 1) An increased air rate yields an optimum sulphur recovery. 2) Concentrate sulphur grades decrease when the air rate is increased. 3) The concentrate grades increase when the froth depth is increased. 4) Increasing the feed solids percent to the flotation column has no effect on the …
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Investigation of alternative carbon sources for the biological treatment of synthetic sulphate-laden water and mine impacted water in a linear flow channel reactor
… the potential to convert sulphate to elemental sulphur, touching on waste valorisation as sulphur is a value-added product. However, BSR systems require supplementation with organic carbon and are characterised as slow, while partial oxidation of sulphide is difficult to control in many reactor …
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Experimentelle und theoretische Ansätze zur Entschwefelung eines mit Kohlenwasserstoffen beladenen Gases
… over a Titania catalyst. H2S is converted into sulphur. Nevertheless the catalyst undergoes a deactivation through coke formation. In order to explain the coke profile in the inner of the catalyst's pellet, the influence of the internal heat and mass transfers has been considered using a pore …
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Environmental assessment of global site-specific industrial air pollution
… methane (CH4), fine particulate matter (PM2.5), sulphur dioxide (SO2), nitrogen oxides (NOx), ammonia (NH3) and mercury (Hg), which represent main drivers of human health impacts from pollution. For power plants, air emissions have been modeled comprehensively including electricity and heat …