Membrane distillation (MD) has emerged as an important technology for applications in industries such as seawater desalination and wastewater treatment due to its low energy requirement and theoretically low fouling propensity. However, the main obstacle to obtain high separating efciency in MD lies on the availability of porous hydrophobic membrane that can withstand pore wetting and membrane fouling. In this work, a dual coagulation bath method was introduced to alter the membrane morphology by increasing its porosity, surface roughness as well as polymer crystallinity. To increase the membrane hydrophobicity, membrane roughness was induced by adding TiO2 nanoparticles. However, this has brought concomitant impacts by lowering its porosity due to the pore blocking and reducing hydrophobicity due to the presence of hydroxyl group on TiO2 surface. Introduction of silanized TiO2 modifed at pH 7 gave higher contact angle (131.7±4) that could withstand the pore wetting and at the same time maintained its high permeation ﬂux (12kg/m2.h) and excellent nutrient removal efciency of 99.65%. Consistent ﬂux around 6 kg/m2.h for Paper Mill Sequence Batch Reactor (PMSE) could be achieved showing that the membrane wetting and fouling resistance towards solids were good. The system efciency was around 55% which was comparable to the pure water treatment process (50%). However, the membrane was not suitable to be used for treatment of the oil-rich Palm Oil Mill Efuent (POME) as the ﬂux dropped from 6 to 2 kg/m2.h after 7 hours of operation...
Membrane Fouling Important Technology For Applications Membrane Distillation Adding TiO2 Nanoparticles High Permeation Flux Low Energy Requirement Membrane Roughness Hours Of Operation Membrane Wetting Fouling Resistance
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Round-ups are the summaries of handpicked papers around trending topics published every week. These would enable you to scan through a collection of papers and decide if the paper is relevant to you before actually investing time into reading it.
Climate change Research Articles published between Jan 23, 2023 to Jan 29, 2023
Jan 30, 2023
Articles Included: 3
Climate change adaptation has shifted from a single-dimension to an integrative approach that aligns with vulnerability and resilience concepts. Adapt...Read More
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