https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 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:39498 3 MPN/mL) on the membrane, facilitating biogenetic manganese formation. The dominant MnOB (i.e., Hyphomicrobium) was identified using microbial community analysis. Intermittent dosage of PAC-MnOx at start-up period was likely to generate a cake layer effectively contributing to autocatalytic oxidation; The flux stablised at 41 L/(m²·h) after only 15-d operation, and the permeate of manganese was 0.089 mg/L. After 30-d operation, laser scattering particle analyzer (LASP) revealed that the particles (70.9 μm) within biofilm of gravity driven ceramic membrane (GDCM) grew larger compared with those present initially (48.5 μm) due to the newly formed biogenic MnOx attached to the carrier PAC, indicated by Raman analysis and X-ray Diffraction (XRD) analysis. Mn(III) as the predominant valence in MnOx conferred its outstanding catalytic oxidative capacity, as evidenced by X-ray photoelectron spectroscopy (XPS) analysis. SEM-EDS mapping demonstrated that a uniform flower-like birnessite structure was formed on the PAC surface, facilitating the transformation of MnOx to newly-formed birnessite on the vicinity of GDCM. Taking advantage of PAC and birnessite, the gravity driven filtration system developed in this study is anticipated to be an effective water treatment technique, particularly suitable for small footprint decentralized water supply sanitation.]]> Tue 09 Aug 2022 14:35:25 AEST ]]>