Structural and morphological characterization of scale deposits on the reverse osmosis membranes: Case of brackish water demineralization station in Morocco

Karmal, Ilham; Mohareb, Said; housse, Mohamed El; Hafid, Naima; Hadfi, Abdallah; Belattar, M’barek; Ben-Aazza, Said; Addi, Abdelaziz Aït; Akbour, Rachid Aı̈t; Hamdani, Mohamed; Driouiche, Ali

doi:10.1016/j.gsd.2020.100483

Cited by 24 publications

(2 citation statements)

References 45 publications

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“…Characterization techniques play a vital role in studying the physicochemical properties of nanoparticles incorporated into/onto thin film composite (TFC) membranes. 140 These techniques enable researchers to acquire valuable information about the morphology, composition, and interactions between nanoparticles and membrane surfaces. This overview section presents a classification of characterization techniques, highlighting their types and importance in providing essential information for assessing the performance of nanoparticles-modified membranes.…”

Section: Characterization Of Polyamide Layersmentioning

confidence: 99%

Nanomaterials-modified reverse osmosis membranes: a comprehensive review

Ahmed,

Mahmoud,

Mohamed

2024

RSC Adv.

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Section: Characterization Of Polyamide Layersmentioning

confidence: 99%

Nanomaterials-modified reverse osmosis membranes: a comprehensive review

Ahmed,

Mahmoud,

Mohamed

2024

RSC Adv.

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“…Since the autopsy membrane was used for brackish water treatment, the XRD results of the wastewater have been attributed to brackish water properties. Karmal et al (2020) carried out a XRD analysis with the aim of determining the crystal structure of membrane foulants. They reported the diffraction peaks of CaCO 3 very similarly to our study.…”

Section: Preparation and Xrd Analysis Of Foulant Sample On Membrane Surfacementioning

confidence: 99%

Understanding the operational problems and fouling characterization of RO membrane used for brackish water treatment via membrane autopsy

Balcik

2021

Water Science and Technology

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An autopsy of spiral wound RO membrane operated in brackish water treatment was conducted to understand the origin and extent of foulants and fouling mechanisms. Structural and chemical characterization was determined by visual inspection and instrumental analysis such as SEM-EDS and XRD. It was observed that the membrane surfaces were completely covered with a gray/brown pollutant layer in all membrane sheets. SEM images proved accumulation of mineral pollutants on membrane surface. Also, the high levels of Al and Si which was attributed to aluminum silicates originating from feed water were determined on membrane surfaces. Additionally, the XRD analysis results showed that the foulant sample collected from membrane surfaces include halloysite, SiO2 and LiCl components. Fujiwara result proved that no damage was occurred on the membrane surface due to oxidation. Consequently, a fouling control strategy for RO-based brackish water treatment plants was also recommended to increase the membrane life.

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