https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39466 ® 2HT-75 (IBA) and further tailored with palmitic acid (IBAP) in order to prepare effective adsorbents. They were used for the removal of perfluorooctane sulfonate (PFOS), phenanthrene (PHE) and copper ions (Cu²⁺) both in single (S) and binary (B) contaminant conditions in simulated and real wastewater. The IB showed a large affinity for Cu²⁺ in both single (q_max: 43.43 mg/L) and binary (q_max: 43.95 mg/L) systems. Adsorption of PFOS and PHE was dramatically enhanced by the functionalized clays IBA (K_{F (PFOS)}: 11.1 and K_{F (PHE)}: 9.65 mg ^(1-n) Lⁿ g⁻¹) and IBAP (K_{F (PFOS)}): 10.2 and K_{F (PHE)}: 16.68 mg ^(1-n) Lⁿ g⁻¹). The co-occurrence of PFOS or PHE with Cu²⁺ enhanced their adsorption onto clays indicating that Cu²⁺ can form bridges between clays and PFOS or PHE in different mechanism to increase adsorption of PFOS or PHE in binary solutions. The surface-tailored organoclay IBAP showed great potential for the complete removal of PFOS, PHE and 86.6% of Cu²⁺ from real wastewater, which is usually considered challenging.]]> Tue 09 Aug 2022 14:29:54 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39491 4) at depth greater than 500 m from earth surface. The average mass concentration of PM₄ was extremely higher than recommended values. QXRD and FESEM-EDS analyses were applied to study the micro-mineralogy and micro-morphology of respirable dusts. The chemical analysis by ICP-MS revealed an enrichment of V, Cr, Cu, Zn, As, Ag, Cd and Sb in respirable dust compared with the background environment and world coals. The EPA’s health risk model showed that the health risk posed by Cr and Co in all workplaces exceeded the acceptable risk value for human health. The synthetic respiratory tract lining fluid (RTLF) model was utilized to achieve a novel insight into the toxicity of respirable coal dust. The result showed an overall depletion of lung surface antioxidants with the decreasing trend of ascorbic acid > reduced glutathione >> urate, implying low- to medium level of oxidative stress. The result of this study can be applied globally by decision-makers to decrease hazardous exposure of mine workers to respirable dust.]]> Fri 10 Jun 2022 14:04:34 AEST ]]>