Calibrating and Validating the MFI-UF Method to Measure Particulate Fouling in Reverse Osmosis

Mohanad Abunada; Nirajan Dhakal; William Z. Andyar; Yuke Li; Pamela Ajok; NorEddine Ghaffour; Jan C. Schippers; Maria D. Kennedy

doi:10.3390/membranes13050535

Calibrating and Validating the MFI-UF Method to Measure Particulate Fouling in Reverse Osmosis

Mohanad Abunada, Nirajan Dhakal, William Z. Andyar, Yuke Li, Pamela Ajok, NorEddine Ghaffour, Jan C. Schippers, Maria D. Kennedy

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

1 Scopus citations

Abstract

This study aimed to calibrate and validate the MFI-UF method in order to ensure the accuracy of particulate fouling measurements in RO. Firstly, the MFI-UF calibration was examined using two solutions of standard particles (dextran and polystyrene). Two main criteria were investigated: (i) MFI-UF linearity with particle concentrations at both low and high ranges of fouling potential and (ii) the reproducibility of MFI-UF linearity. Dextran solutions showed a strong MFI-UF linearity over the entire range of measured MFI-UF. However, the linearity was not reproducible, and different batches of dextran prepared under the same conditions produced very variable results. For polystyrene solutions, the MFI-UF linearity was verified at the higher range of MFI-UF (>10,000 s/L2), while the MFI-UF at the lower range (

Original language	English (US)
Pages (from-to)	535
Journal	Membranes
Volume	13
Issue number	5
DOIs	https://doi.org/10.3390/membranes13050535
State	Published - May 22 2023

ASJC Scopus subject areas

General Materials Science

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10.3390/membranes13050535

https://repository.kaust.edu.sa/bitstream/10754/692029/1/membranes-13-00535-v2.pdf

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title = "Calibrating and Validating the MFI-UF Method to Measure Particulate Fouling in Reverse Osmosis",

abstract = "This study aimed to calibrate and validate the MFI-UF method in order to ensure the accuracy of particulate fouling measurements in RO. Firstly, the MFI-UF calibration was examined using two solutions of standard particles (dextran and polystyrene). Two main criteria were investigated: (i) MFI-UF linearity with particle concentrations at both low and high ranges of fouling potential and (ii) the reproducibility of MFI-UF linearity. Dextran solutions showed a strong MFI-UF linearity over the entire range of measured MFI-UF. However, the linearity was not reproducible, and different batches of dextran prepared under the same conditions produced very variable results. For polystyrene solutions, the MFI-UF linearity was verified at the higher range of MFI-UF (>10,000 s/L2), while the MFI-UF at the lower range (",

author = "Mohanad Abunada and Nirajan Dhakal and Andyar, {William Z.} and Yuke Li and Pamela Ajok and NorEddine Ghaffour and Schippers, {Jan C.} and Kennedy, {Maria D.}",

note = "KAUST Repository Item: Exported on 2023-05-25 Acknowledgements: This research received no external funding.",

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T1 - Calibrating and Validating the MFI-UF Method to Measure Particulate Fouling in Reverse Osmosis

AU - Abunada, Mohanad

AU - Dhakal, Nirajan

AU - Andyar, William Z.

AU - Li, Yuke

AU - Ajok, Pamela

AU - Ghaffour, NorEddine

AU - Schippers, Jan C.

AU - Kennedy, Maria D.

N1 - KAUST Repository Item: Exported on 2023-05-25 Acknowledgements: This research received no external funding.

PY - 2023/5/22

Y1 - 2023/5/22

N2 - This study aimed to calibrate and validate the MFI-UF method in order to ensure the accuracy of particulate fouling measurements in RO. Firstly, the MFI-UF calibration was examined using two solutions of standard particles (dextran and polystyrene). Two main criteria were investigated: (i) MFI-UF linearity with particle concentrations at both low and high ranges of fouling potential and (ii) the reproducibility of MFI-UF linearity. Dextran solutions showed a strong MFI-UF linearity over the entire range of measured MFI-UF. However, the linearity was not reproducible, and different batches of dextran prepared under the same conditions produced very variable results. For polystyrene solutions, the MFI-UF linearity was verified at the higher range of MFI-UF (>10,000 s/L2), while the MFI-UF at the lower range (

AB - This study aimed to calibrate and validate the MFI-UF method in order to ensure the accuracy of particulate fouling measurements in RO. Firstly, the MFI-UF calibration was examined using two solutions of standard particles (dextran and polystyrene). Two main criteria were investigated: (i) MFI-UF linearity with particle concentrations at both low and high ranges of fouling potential and (ii) the reproducibility of MFI-UF linearity. Dextran solutions showed a strong MFI-UF linearity over the entire range of measured MFI-UF. However, the linearity was not reproducible, and different batches of dextran prepared under the same conditions produced very variable results. For polystyrene solutions, the MFI-UF linearity was verified at the higher range of MFI-UF (>10,000 s/L2), while the MFI-UF at the lower range (

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DO - 10.3390/membranes13050535

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C2 - 37233598

SN - 2077-0375

VL - 13

SP - 535

JO - Membranes

JF - Membranes

IS - 5

ER -

Calibrating and Validating the MFI-UF Method to Measure Particulate Fouling in Reverse Osmosis

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