Fouling resistant nanofiltration membranes for the separation of oil–water emulsion and micropollutants from water

Muppalla, Ravikumar; Jewrajka, Suresh K.; Reddy, A.V.R.

doi:10.1016/j.seppur.2015.01.031

Cited by 55 publications

(24 citation statements)

References 44 publications

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“…They have been employed in analyzing the experimental results in oily wastewater treatment using membranes. [13,28,35,59,65] In these fouling models, the foulant particles which enter the pores of the membrane or strongly adsorb on the membrane surface can contribute to irreversible fouling. Otherwise, they can be easily washed away and contribute to the reversible fouling.…”

Section: Hermia's Fouling Modelsmentioning

confidence: 99%

Antifouling membranes for oily wastewater treatment: Interplay between wetting and membrane fouling

Huang

Ras

Tian

2018

Current Opinion in Colloid & Interface Science

286

113

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Oily wastewater is an extensive source of pollution to soil and water, and its harmless treatment is of great importance for the protection of our aquatic ecosystems. Membrane filtration is highly desirable for removing oil from oily water because it has the advantages of energy efficiency, easy processing and low maintenance cost. However, membrane fouling during filtration leads to severe flux decline and impedes long-term operation of membranes in practical wastewater treatment. Membrane fouling includes reversible fouling and irreversible fouling. The fouling mechanisms have been explored based on classical fouling models, and on oil droplet behaviors (such as droplet deposition, accumulation, coalescence and wetting) on the membranes. Membrane fouling is dominated by droplet-membrane interaction, which is influenced by the properties of the membrane (e.g., surface chemistry, structure and charge) and the wastewater (e.g., compositions and concentrations) as well as the operation conditions. Typical membrane antifouling strategies, such as surface hydrophilization, zwitterionic polymer coating, photocatalytic decomposition and electrically enhanced antifouling are reviewed, and their cons and pros for practical applications are discussed.

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Section: Hermia's Fouling Modelsmentioning

confidence: 99%

Antifouling membranes for oily wastewater treatment: Interplay between wetting and membrane fouling

Huang

Ras

Tian

2018

Current Opinion in Colloid & Interface Science

286

113

View full text Add to dashboard Cite

show abstract

“…During the past decade, membrane technology has been of major importance in different separation processes such as bioseparation, oil‐water separation, cell particles removal, dialysis, fuel cell etc. Alongside the other separation technologies such as ion exchange resins, adsorbents, etc., the membrane separation technology including reverse osmosis (RO), nanofiltration (NF) and ultrafiltration (UF), is an approach to reduce energy consumption and operating cost …”

Section: Introductionmentioning

confidence: 99%

Enhanced water flux through ultrafiltration polysulfone membrane via addition‐removal of silica nano‐particles: Synthesis and characterization

Habibi

Nematollahzadeh

2016

J of Applied Polymer Sci

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In the present paper, hierarchically structured ultrafiltration polysulfone (PSf) membrane was prepared to explore the effect of addition and subsequent removal of SiO 2 nano-particles on the membrane morphology, hydrophilicity, and separation properties. The PSf based membranes namely PSf, PSf/SiO 2 and PSf/WSiO 2 (i.e. SiO 2 nano-particles was acid-washed and removed from PSf/SiO 2 ), were synthesized and characterized by different characterization methods. Pure water flux through the membranes was determined using a filtration unit operating at a continuous dead-end flow mode. The modification enhanced the morphology, hydrophobicity, porosity and transport properties of the modified membranes, although the molecular weight cut-off (MWCO) of the membranes was not changed considerably. In comparison, PSf/WSiO 2 membrane exhibited excellent pure water flux (about 4.5 times the flux of PSf, and 17 times the flux of PSf/SiO 2 ), although antifouling property of PSf/SiO 2 in separation of bovine serum albumin (BSA) was better than that of PSf and PSf/WSiO 2 membranes. The results suggested that the addition/removal of sacrificial solid fillers within/from a membrane matrix may provide a promising strategy to enhance PSf membrane transport property. V C 2016Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43556.

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“…Among the technologies that have been applied in produced water treatment are separation by hydrocyclones (Motin et al, 2013;Walsh and Georgie, 2012), microfiltration (Campos et al, 2002;Chen et al, 2009;Luo et al, 2014;Mecha and Pillay, 2014;Motta et al, 2014;Zhou et al, 2010), ultrafiltration through polymer membranes (Cheryan and Rajagopalan, 1998;Muppalla et al, 2015;Obaid et al, 2015;Tansel et al, 1995), wetlands (Rambeau et al, 2004), adsorption (Twaiq et al, 2012) and aerated lagoons (Beyer et al, 1979). Biological treatment systems such as activated sludge have been also utilized for the removal of stable emulsions from produced water (Tellez et al, 2002;Tellez et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Demulsification of stable emulsions from produced water using a phase separator with inclined parallel arc coalescing plates

Almarouf

Nasser

Al–Marri

et al. 2015

Journal of Petroleum Science and Engineering

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Fouling resistant nanofiltration membranes for the separation of oil–water emulsion and micropollutants from water

Cited by 55 publications

References 44 publications

Antifouling membranes for oily wastewater treatment: Interplay between wetting and membrane fouling

Antifouling membranes for oily wastewater treatment: Interplay between wetting and membrane fouling

Enhanced water flux through ultrafiltration polysulfone membrane via addition‐removal of silica nano‐particles: Synthesis and characterization

Demulsification of stable emulsions from produced water using a phase separator with inclined parallel arc coalescing plates

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