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 9 of 9 for “"Red mud"”.
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Extraction and recovery of valuable elements from Red Mud through biohydrometallurgy
… produced through the Bayer process is called Red Mud (RM). RM might be environmentally dangerous due to its high alkalinity (the pH in fact ranges between 10 and 12.5) and the presence of toxic elements. Nevertheless, the contemporary approach to waste streams could turn this aspect into an …
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Synthesis and Characterisation of Layered Double Hydroxides (LDHs) Using Red Mud and their Environmental Applications
… and is calling for new practices of waste reduction. Utilisation of waste materials therefore present twofold merits: (1) minimise waste disposal, (2) serve as alternative resources. Bauxite residue, also known as red mud (RM), the aluminium industry’s largest solid waste stream, is the …
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Co-gasification of biomass and plastic waste in a bubbling fluidized bed reactor
… pandemic has demonstrated the importance of reducing plastic waste and is believed to be responsible for increasing the generation of plastic waste by 54,000 tons/day which was reported in 2020. Another widely available waste is biomass waste. Agriculture and agroforestry, forest and wood …
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Synthesis and characterization of geopolymers for infrastructural applications
… of raw materials (i.e., metakaolin, mixture of red mud and fly ash, mixture of red mud and rice husk ash) was explored. For geopolymers from identical raw materials, variable parameters involved in the synthesis were examined to investigate the extent and degree of geopolymerization. Uniaxial …
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ΠΡΟΣΤΑΣΙΑ ΧΑΛΥΒΑ ΑΠΟ ΔΙΑΒΡΩΣΗ
… THE USAGE OF H-SEMICONDUCTORS (I.E. Γ-AL2O3, RED MUD, DOPPED OXIDES) OR, INSTEAD OF THE ABOVE, NEW PAINTS USING THE EPOXY AS BASE, HAVE BEEN DEVELOPED. THE PIGMENT CONTENT OF THE VEHICLES, HAS BEEN 30% C.M. THE USAGE OF THE CATHODIC PROTECTION HAS SHOWN THAT IN SEVERAL CASES IT GIVES THE BEST …
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ΜΕΛΕΤΗ ΤΗΣ ΥΔΡΟΛΥΣΗΣ, ΤΗΣ ΠΡΟΣΡΟΦΗΣΗΣ ΚΑΙ ΤΗΣ ΔΙΑΣΠΑΣΗΣ ΤΩΝ ΦΥΤΟΦΑΡΜΑΚΩΝ METHYL-PARATHION, LINDANE ΚΑΙ ATRAZINE ΣΕ ΦΥΣΙΚΑ ΥΠΟΣΤΡΩΜΑΤΑ
… OF MINERALS PHOSPHATE ORE, KAOLLINITE, FLY ASH, RED MUD AND Γ-ALUMINA. THE ABILITY OF THESE SOLID SUBSTRATES FOR ADSORPTION AND DEGRADATION WAS PROVED THAT IT DEPENDS ON THEIR CHEMICAL FORMATION AND THEIR BASIC PHYSICOCHEMICAL CHARACTERISTICS (PH, SPECIFIC SURFACE AREA, NUMBER OF ACID SITES AND …
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Social Exclusion and Discourses of Literacy and Physical Activity (post-16) in Scotland
… social exclusion and so this study explored understandings of social exclusion in policy and in practitioners’ discourses about their practice in both these types of provision. <br/>I undertook an analysis of Scottish policy texts relating to social exclusion, literacy and physical …
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Use of electrokinetic and reactive barriers to treat heavy metals-contaminated soils
… (EK) and reactive barrier (RB) of transformed red mud (TRM) (a by-product of bauxite refinement for alumina production) for the remediation of low permeability contaminated soils by chromium and arsenic was investigated. The combination of EK with RB is a possible way in order to enhance EK …
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Interpretation of coarsening upwards hemicycles in the Upper Paleozoic rocks of South-central West Virginia
… a) delta front (interbedded sand-dominant and mud-dominant units with thick subunits), b) distributary mouth bar (convex top sandstones and siltstones), c) interdistributary bay (mainly grey mud-clay rocks, and aphanic, highly fossiliferous limestones with abundant <em>Spirorbis</em>, …