bauxite residue
Acid transformation of bauxite residue: Conversion of its alkaline characteristics
... transformed bauxite residue, indicating that a large concentration of exchangeable Na was replaced with exchangeable Ca during transformation processes, also, gypsum addition promoted its ...the ...
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Sustained Bauxite Residue Rehabilitation with Gypsum and Organic Matter 16 years after Initial Treatment
... vegetated residue producing passive positive rehabilitation e ff ects into deeper ...the residue (potentially containing high alkalinity, sodium, and trace metals) and the bottom of the rooted zone at around ...
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Efficiency of Sulfuric Acid on Selective Scandium Leachability from Bauxite Residue
... Bauxite residue (BR), also called red mud, is the highly alkaline (pH>11) and very fine-grained slurry by-product after ‘Bayer’ process for alumina ...for bauxite and alumina industries affecting ...
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Effect of bauxite residue loading on heat shielding performance of an ammonium polyphosphate based epoxy intumescent system
... Bauxite residue (BR) is the aluminosilicate waste generated by the alumina ...the residue on the heat shielding performance of the system was ...
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Optimizing Conditions for Scandium Extraction from Bauxite Residue Using Taguchi Methodology
... Bauxite residue (BR) or red mud (RM) is the by-product generated in alumina production after Bayer ...on bauxite origin and Bayer process conditions, it mainly consists of Fe, Al, Ca, Na, Si, Ti ...
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Enhancement of bauxite residue as a low-cost adsorbent for phosphorus in aqueous solution, using seawater and gypsum treatments
... Cusack, PB, Healy, MG, Ryan, PC et al. (4 more authors) (2018) Enhancement of bauxite residue as a low-cost adsorbent for phosphorus in aqueous solution, using seawater and gypsum treatments. Journal of ...
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Determination of Swelling Behaviour of Black Cotton Soil with Lime and Red Mud (Bauxite Residue)
... On the basis of results of Gati Sri Uttami [7] and R.K. Paramguru [8] the plasticity of the clay soil (black cotton soil) decreases while increasing the percentage of red mud and lime in the soil sample. As we have seen ...
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Effects of Leaching on the Chemical and Physical Properties of Bauxite Residue Mud and Sand
... of bauxite residue from the Darling Range deposit has a high content of unreactive quartz, a low content of sodalite and soluble and residual alkalinity and a much lower soluble and exchangeable Na content ...
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The potential for constructed wetlands mechanisms to treat alkaline bauxite residue leachate: carbonation and precipitate characterization
... The wetland precipitate also contained quartz as well as higher values for Si. The occurrence of quartz is likely to be from soil entrainment. Carbonation of bauxite residue can produce soluble salts (Wang ...
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Manufacture Processing of Green Cement (Calcium Sulfo Aluminate (CSA) from Bauxite Residue (Red mud)
... reuse bauxite residue are being continually ...general, bauxite residue is utilized for road constructions, back fill and bricks for building ...the bauxite residue utilization ...
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Mobilisation of arsenic from bauxite residue (red mud) affected soils: effect of pH and redox conditions.
... red mud suspension into the surrounding area. Red mud (fine fraction bauxite residue) has a character- istically alkaline pH and contains several potentially toxic elements, including arsenic. Aerobic and ...
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Vanadium removal and recovery from bauxite residue leachates by ion exchange
... Vanadium has a medium risk of supply shortage and a high political risk (Hunt and Kraus 2013). It is also considered critical for the development of green technologies (Naden 2013) and renewable energy production and ...
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Evaluation of aggregate microstructures following natural regeneration in bauxite residue as characterized by synchrotron-based X-ray micro-computed tomography
... natural soil-forming processes bauxite residue porosity, specific surface area, average length of paths,.. 21.[r] ...
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Amending bauxite residue sands with residue fines to enhance growth potential
... on bauxite-processed residue storage areas is dependant on establishing a capping stratum which will satisfy water use and nutrient cycling requirements of the intended plant ...community. Bauxite ...
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Rare Earth Element Phases in Bauxite Residue
... from bauxite residue, REEs have been indicated to occur in calcium titanate phases that were created 171.. in the Bayer process.[r] ...
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Impacts of amending bauxite residue sands with residue fines for the establishment of vegetation on residue disposal areas
... of bauxite residue materials requires a capping stratum which will limit erosion while stabilizing slopes, limit deep infiltration of water into storage piles, and be aesthetically acceptable to the ...
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Impacts of amending bauxite residue sands with residue fines for the establishment of vegetation on residue disposal areas
... ten residue sand samples and on four replicates for each of the residue fines, using sedimentation rates for both the pipette (Bowman and Hutka 2002) and hydrometer methods (Gee and Or ...within ...
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Development of alkaline electrochemical characteristics demonstrates soil formation in bauxite residue undergoing natural rehabilitation
... Surface electrochemical properties of red mud (bauxite residue): Zeta potential and surface charge. 407[r] ...
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Leaching optimization and dissolution behavior of alkaline anions in bauxite residue
... Bauxite residue (BR or red mud) is a hazardous alkaline solid waste originating from the Bayer process [3, 4] which is used to extract alumina from bauxite ...ore. Bauxite is digested in a ...
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Leaching of copper and nickel in soil-water systems contaminated by bauxite residue (red mud) from Ajka, Hungary: the importance of soil organic matter
... Red mud is the name given to the fine fraction residue produced during alumina extraction from bauxite by the Bayer process. The composition of red mud is dependent upon the bauxite ore used (Hind et ...
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