https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Red Mud https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:40948 Wed 31 Aug 2022 12:07:52 AEST ]]> Effects of thermal treatments on the characterisation and utilisation of red mud with sawdust additive https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:24638 Wed 11 Apr 2018 14:14:24 AEST ]]> Influence of red mud on mechanical and durability performance of self-compacting concrete https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42412 Thu 08 Feb 2024 10:41:27 AEDT ]]> Influence of red mud on fresh and hardened properties of self-compacting concrete https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42336 Mon 22 Aug 2022 12:58:18 AEST ]]> Synthesis, characterization and adsorptive performances of functionalized clay minerals and red mud for aqueous arsenic removal https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:54852 Fri 15 Mar 2024 17:15:42 AEDT ]]> Adsorption of perfluorooctane sulfonate (PFOS) onto metal oxides modified biochar https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:38433 3O₄), ferrihydrites, and desilicated minerals are identified in the RMSDN600 using XRD (X-ray diffraction) and XANES (X-ray absorption near-edge structure). Sorption isotherm for RMSD600 and SDN600 showed close-fitting with Langmuir and Freundlich model demonstrated monolayer and multilayer sorption of PFOS over the active sites of the adsorbents. The potential formation of micelles and hemi-micelles can occur in interparticle porous biochars as the concentration of PFOS exceeds critical hemi-micelle concentration (4.57-45.7 mg/L). The kinetic study followed Pseudo-second-order model for both adsorbents, demonstrated both physisorption and chemisorption of PFOS. The results revealed the adsorption of PFOS was governed by both hydrophobic and electrostatic interaction, with hydrophobic interaction as the dominant sorption mechanism. The higher adsorption capacity for RMSDN600 (194.6 mg/g) was recorded than that for SDN600 (178.6 mg/g) at pH 3.1 due to the abundance of protonated metal-based functional groups, and more ordered graphitic carbon structure resulting from catalytic degradation and transformation of cellulose and hemicellulose. Aromatic structure can potentially enhance PFOS sorption by non-ionic interaction. In contrast, metal-based and other oxygen-containing functional groups of adsorbents enhance adsorption capacity through electrostatic interaction and ion exchange reactions. Lower solution pH and smaller particle size of the adsorbents could also enhance sorption of PFOS from aqueous phase.]]> Fri 10 Sep 2021 15:11:32 AEST ]]> Adding worms during composting of organic waste with red mud and fly ash reduces CO2 emissions and increases plant available nutrient contents https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42997 Fri 09 Sep 2022 14:04:02 AEST ]]>