Deposition of toxic metal particles on rough nanofiltration membranes

Oluranti Agboola; Jannie Maree; Richard Mbaya; Caliphs Musa Zvinowanda; Gomotsegang Fred Molelekwa; Nora Jullok; Bart van der Bruggen; Alexander Volodine; Chris Van Haesendonck

doi:10.1007/s11814-014-0075-6

Deposition of toxic metal particles on rough nanofiltration membranes

Oluranti Agboola, Jannie Maree, Richard Mbaya, Caliphs Musa Zvinowanda, Gomotsegang Fred Molelekwa, Nora Jullok, Bart van der Bruggen, Alexander Volodine, Chris Van Haesendonck

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Two nanofiltration (NF90 and Nano-Pro-3012) membranes were investigated for their capacity to remove metal ions. This study presents the effect of membrane roughness on the removal of toxic metal ions during dead end membrane filtration. Atomic force microscopy, scanning electron microscopy, WSXM software and ImageJ were used to characterize the roughness of the membranes. Gradual decrease in filtration permeate flux was observed as foulants accumulated at the interface of the membranes; filtration permeate flux varied from 20 L/m²/h to 14 L/m²/h and 11 L/m²/h to 6 L/m²/h for NF90 and Nano-Pro-3012, respectively. NF90 membrane was more prone to fouling than the Nano-Pro-3012 membrane: the percentage flux reduction was higher for NF90 (3.6%) than Nano-Pro-3012 (0.98%). The bearing ratio of the fouled NF90 exhibited a high peak of 7.09 nm than the fouled Nano-Pro-3012 with the peak of 6.8 nm.

Original language	English
Pages (from-to)	1413-1424
Number of pages	12
Journal	Korean Journal of Chemical Engineering
Volume	31
Issue number	8
DOIs	https://doi.org/10.1007/s11814-014-0075-6
Publication status	Published - Aug 2014
Externally published	Yes

Keywords

AFM
Bearing Analysis
Flux Reduction
Particle Deposition
Roughness
SEM

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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10.1007/s11814-014-0075-6

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title = "Deposition of toxic metal particles on rough nanofiltration membranes",

abstract = "Two nanofiltration (NF90 and Nano-Pro-3012) membranes were investigated for their capacity to remove metal ions. This study presents the effect of membrane roughness on the removal of toxic metal ions during dead end membrane filtration. Atomic force microscopy, scanning electron microscopy, WSXM software and ImageJ were used to characterize the roughness of the membranes. Gradual decrease in filtration permeate flux was observed as foulants accumulated at the interface of the membranes; filtration permeate flux varied from 20 L/m2/h to 14 L/m2/h and 11 L/m2/h to 6 L/m2/h for NF90 and Nano-Pro-3012, respectively. NF90 membrane was more prone to fouling than the Nano-Pro-3012 membrane: the percentage flux reduction was higher for NF90 (3.6%) than Nano-Pro-3012 (0.98%). The bearing ratio of the fouled NF90 exhibited a high peak of 7.09 nm than the fouled Nano-Pro-3012 with the peak of 6.8 nm.",

keywords = "AFM, Bearing Analysis, Flux Reduction, Particle Deposition, Roughness, SEM",

author = "Oluranti Agboola and Jannie Maree and Richard Mbaya and Zvinowanda, {Caliphs Musa} and Molelekwa, {Gomotsegang Fred} and Nora Jullok and {van der Bruggen}, Bart and Alexander Volodine and {Van Haesendonck}, Chris",

year = "2014",

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doi = "10.1007/s11814-014-0075-6",

language = "English",

volume = "31",

pages = "1413--1424",

journal = "Korean Journal of Chemical Engineering",

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AU - Agboola, Oluranti

AU - Maree, Jannie

AU - Mbaya, Richard

AU - Zvinowanda, Caliphs Musa

AU - Molelekwa, Gomotsegang Fred

AU - Jullok, Nora

AU - van der Bruggen, Bart

AU - Volodine, Alexander

AU - Van Haesendonck, Chris

PY - 2014/8

Y1 - 2014/8

N2 - Two nanofiltration (NF90 and Nano-Pro-3012) membranes were investigated for their capacity to remove metal ions. This study presents the effect of membrane roughness on the removal of toxic metal ions during dead end membrane filtration. Atomic force microscopy, scanning electron microscopy, WSXM software and ImageJ were used to characterize the roughness of the membranes. Gradual decrease in filtration permeate flux was observed as foulants accumulated at the interface of the membranes; filtration permeate flux varied from 20 L/m2/h to 14 L/m2/h and 11 L/m2/h to 6 L/m2/h for NF90 and Nano-Pro-3012, respectively. NF90 membrane was more prone to fouling than the Nano-Pro-3012 membrane: the percentage flux reduction was higher for NF90 (3.6%) than Nano-Pro-3012 (0.98%). The bearing ratio of the fouled NF90 exhibited a high peak of 7.09 nm than the fouled Nano-Pro-3012 with the peak of 6.8 nm.

AB - Two nanofiltration (NF90 and Nano-Pro-3012) membranes were investigated for their capacity to remove metal ions. This study presents the effect of membrane roughness on the removal of toxic metal ions during dead end membrane filtration. Atomic force microscopy, scanning electron microscopy, WSXM software and ImageJ were used to characterize the roughness of the membranes. Gradual decrease in filtration permeate flux was observed as foulants accumulated at the interface of the membranes; filtration permeate flux varied from 20 L/m2/h to 14 L/m2/h and 11 L/m2/h to 6 L/m2/h for NF90 and Nano-Pro-3012, respectively. NF90 membrane was more prone to fouling than the Nano-Pro-3012 membrane: the percentage flux reduction was higher for NF90 (3.6%) than Nano-Pro-3012 (0.98%). The bearing ratio of the fouled NF90 exhibited a high peak of 7.09 nm than the fouled Nano-Pro-3012 with the peak of 6.8 nm.

KW - AFM

KW - Bearing Analysis

KW - Flux Reduction

KW - Particle Deposition

KW - Roughness

KW - SEM

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JO - Korean Journal of Chemical Engineering

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IS - 8

ER -

Deposition of toxic metal particles on rough nanofiltration membranes

Abstract

Keywords

ASJC Scopus subject areas

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