Membrane Antifouling Methods and Alternatives: Ultrasound Approach

Ahmad, A.L.; Lah, Nuur Fahanis Che; Ismail, Suzylawati; Ooi, B. S.

doi:10.1080/15422119.2011.617804

Cited by 62 publications

(39 citation statements)

References 63 publications

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“…Nevertheless, membranes have to be cleaned periodically to recover lost performance caused by membrane fouling, which is primarily due to adsorption of particulates, colloids and solutes on the membrane surface and/or within the pores [2][3][4][5]. Since fouling-related costs account for a large portion of the operating cost, minimizing membrane fouling and ease of cleaning of fouled membranes are critical in membrane applications [6].…”

Section: Introductionmentioning

confidence: 99%

Modification of membrane surfaces via microswelling for fouling control in drinking water treatment

Peldszus

Huck

et al. 2015

Journal of Membrane Science

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Section: Introductionmentioning

confidence: 99%

Modification of membrane surfaces via microswelling for fouling control in drinking water treatment

Peldszus

Huck

et al. 2015

Journal of Membrane Science

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“…(4) About 20 mg L −1 of SA solution was then passed through the membrane for 5 h and record the final flux of the filter solution ( J P /L·m −2 ·h −1 ). (5) To more thoroughly clean the membrane for reversible contamination, this study used ultrasonic cleaning to replace the simple surface hydraulic flushing . Contaminated membrane was cleaned in an ultrasonic bath for 10 min followed by its filtering with 4 L of DI water, which was used to test the recovery of pure water flux ( J R /L·m −2 ·h −1 ) after physical cleaning of the membrane.…”

Section: Methodsmentioning

confidence: 99%

Effect of ethanol in the coagulation bath on the structure and performance of PVDF‐g‐PEGMA/PVDF membrane

Tang

Sun

et al. 2018

J of Applied Polymer Sci

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This report investigated the effect of ethanol content in the coagulation bath on the surface composition, membrane pore size structure, pure water flux, and permeability of the amphiphilic polymer polyvinylidene fluoride (PVDF)-g-poly (ethylene glycol) methyl ether methacrylate (PEGMA)-modified PVDF membrane. The study found that pore size and their distribution and, as a result, membrane permeability, can also be easily controlled by adjusting ethanol content in the coagulation bath. Membrane water fluxes formed by the coagulation baths with 0, 10, 20, and 30% of ethanol were 1843. 65, 2774.61, 4391.88, and 5142.35 L (m −2 Áh −1 ). When the content of ethanol in the coagulation bath is high, the surface enrichment of PEGMA slightly decreases, and the surface becomes rougher. Thus, the decrease of the hydrophilic functional groups on the surface of the membrane and the increase of the roughness leads to the deterioration of the hydrophilicity of the membranes surface.

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“…A number of physical and chemical techniques have been used for membrane cleaning including backwashing, pulsing, forward flushing with air, sonification and chemical cleaning [9][10][11][12]. However, these operations fail to recover the membrane flux without deteriorating the membrane material and interrupt the water treatment process [13].…”

Section: Introductionmentioning

confidence: 99%