https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46234 4) or persulfate/iron(II) (PMS/Fe²⁺) enhanced coagulation as pretreatment for ceramic membrane ultrafiltration. The results showed that KMnO₄ pre-oxidation achieved a slightly more effective Mn removal, and was almost unaffected by the initial dissolved organic carbon (DOC) concentrations. PMS/Fe²⁺ removed UV254 more efficiently (above 90% at a dose of 0.25 mmol/L), compared with KMnO₄ (less than 60% UV254 removal). According to X-ray photoelectron spectroscopy (XPS) analysis of aggregates, both KMnO₄ and Fe²⁺/PMS oxidation resulted in the formation of MnO2 precipitate. Electron paramagnetic resonance(EPR) analysis demonstrated that only the reactors dosed with PMS/Fe²⁺ were able to generate the highly reactive hydroxyl radical(·OH). The production of ·OH caused significant rupture of algal cells and thus higher algal removal compared to the treatment with KMnO₄ (whereby insignificant cell breakage was observed). The cell rupture resulted in higher amounts of organic matter released in the systems containing PMS/Fe²⁺, as demonstrated by excitation-emission matrix (EEM) and protein analysis. Despite the elevated level of organic matter, adding PMS/Fe²⁺ was found to notably mitigate membrane fouling due to the formation of large flocs (311–533 μm) as well as the elimination of major ceramic membrane foulants, i.e. humic substances.]]> Wed 22 Mar 2023 17:30:46 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:50262 16.25 LMH). In conclusion, the novel strategy, PAC-MnOx filled ceramsite composite GDCM system, was satisfactory in treating manganese ion and ammonia-containing groundwater as well as encouraging extensive applications of membrane technologies for drinking water supply.]]> Wed 07 Feb 2024 14:41:48 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:54353 Tue 20 Feb 2024 16:19:23 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46266 Tue 15 Nov 2022 08:07:28 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46630 Mon 28 Nov 2022 15:02:25 AEDT ]]>