Waste acrylonitrile butadiene styrene (ABS) incorporated with polyvinylpyrrolidone (PVP) for potential water filtration membrane

Self Cite

The persistent issue of ceramic membrane fouling poses significant challenges to its widespread implementation. To address this concern, ozone nanobubbles (ozone-NBs) have garnered attention due to their remarkable mass transfer efficiency. In this investigation, we present a novel ozone-NB generator system to effectively clean a fouled ceramic membrane that is typically employed in the dye industry. The surface characteristics of the ceramic membrane underwent significant alterations, manifesting incremental changes in surface roughness and foulant accumulation reduction, as evidenced in atomic force microscopy, scanning electron microscopy, X-ray fluorescence, and energy-dispersive spectroscopy. Remarkably, the sequential 4 h cleaning process demonstrates an effective outcome leading to an almost 2-fold enhancement in the membrane flux. The initial fouled state of 608 L/ h/m 2 increased to 1050 L/h/m 2 in the 4 h state with a recovery of 50%. We propose such membrane performance improvement governed by the ozone-NBs with a size distribution of 213.2 nm and a zeta potential value of −20.26 ± 0.13 mV, respectively. This effort showcases a substantial innovative and sustainable technology approach toward proficient foulant removal in water treatment applications.

Section: Resultsmentioning

confidence: 80%

Section: Methodsmentioning

confidence: 99%

High Recovery of Ceramic Membrane Cleaning Remediation by Ozone Nanobubble Technology

Rafryanto,

Ramadina,

Nur’aini

et al. 2024

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“…This trend is in agreement with other studies, which shows a decrease of conductivity with increasing the amount of PVP. 35 , 36 In contrast to the viscosity, the higher conductivity causes higher stretchability, resulting in a smaller fiber diameter. Although PVP addition also affected the surface tension of the solution, the difference in surface tension was insignificant.…”

Section: Resultsmentioning

confidence: 99%

High-Efficiency Water Filtration by Electrospun Expanded Polystyrene Waste Nanofibers

Arrosyid,

Zulfi,

Nur'aini

et al. 2023

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Nanofiber membranes were successfully synthesized from expanded polystyrene (EPS) waste with the addition of poly(vinylpyrrolidone) (PVP) for water microfiltration using the electrospinning method. The EPS-based nanofiber membranes exhibited a smooth morphology and were uniform in size. The concentration of the EPS/ PVP solution changed some of the physical parameters of the nanofiber membrane, such as viscosity, conductivity, and surface tension. Greater viscosity and surface tension increase the nanofiber membrane diameter, whereas the addition of PVP results in hydrophilicity. Additionally, increasing the pressure increased the flux value of each variation of the nanofiber membranes. Furthermore, the rejection value was 99.99% for all variations. Finally, the use of EPS waste for nanofiber membranes is also beneficial for decreasing the amount of EPS waste in the environment and is an alternative to the current membranes available in the market for water filtration applications.

“…In this study, the water filtration performance was obtained by measuring the flux of pure water, removal percentage of particles, and separation flux of particles. First, pure water’s flux was determined, followed by separating antacid particles (Mylanta, USA) Figure shows the distribution graph of the antacid particle size measured using a particle size analyzer (Beckman Coulter, Delsa Nano C).…”

Section: Methodsmentioning

confidence: 99%

“…First, pure water’s flux was determined, followed by separating antacid particles (Mylanta, USA). 65 Figure 15 shows the distribution graph of the antacid particle size measured using a particle size analyzer (Beckman Coulter, Delsa Nano C). Antacid particles of 852.1 nm in size were reconstituted in distilled water to prepare a 2500 ppm solution.…”

Section: Methodsmentioning

confidence: 99%

Electrospun Nanofibers from Waste Polyvinyl Chloride Loaded Silver and Titanium Dioxide for Water Treatment Applications

Zulfi,

Hartati,

Nur’aini

et al. 2023

Self Cite

The electrospun nanofiber membrane from polyvinyl chloride (PVC) waste for water treatment applications has been successfully produced. The PVC precursor solution was prepared by dissolving the PVC waste in DMAc solvent, and a centrifuge was used to separate undissolved materials from the precursor solution. Ag and TiO2 were added to the precursor solution before the electrospinning process. We studied the fabricated PVC membranes using SEM, EDS, XRF, XRD, and FTIR to study the fiber and membrane properties. The SEM images depicted that Ag and TiO2 addition has changed the morphology and size of fibers. The EDS images and XRF spectra confirmed the presence of Ag and TiO2 on the nanofiber membrane. The XRD spectra showed the amorphous structure of all membranes. The FTIR result indicated that the solvent completely evaporated throughout the spinning process. The fabricated PVC@Ag/TiO2 nanofiber membrane showed the photocatalytic degradation of dyes under visible light. The filtration test on the membrane PVC and PVC@Ag/TiO2 depicted that the presence of Ag and TiO2 affected the flux and separation factor of the membrane.