Volume 142, Issue 14 e56701
RESEARCH ARTICLE

Polyvinyl Alcohol Embedded Activated Clay/Hydroxyapatite Membranes for Fouling Control During the Removal of an Organic Dye in Water

Andrews Ayim Oduro

Andrews Ayim Oduro

Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

Contribution: Data curation (lead), Validation (equal), Writing - original draft (equal)

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Stephanie A. B. Biney

Stephanie A. B. Biney

Regional Water and Environmental Sanitation Centre, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

Contribution: Data curation (equal), ​Investigation (equal), Validation (supporting)

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Edith Shormey Nortey

Edith Shormey Nortey

Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

Contribution: Data curation (equal), ​Investigation (equal), Methodology (equal), Writing - original draft (supporting)

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Ahmed Kangmennaa

Ahmed Kangmennaa

Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

Contribution: Formal analysis (equal), ​Investigation (equal), Validation (equal)

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Richard Baffour Forkuo

Richard Baffour Forkuo

Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

Contribution: Formal analysis (equal), Methodology (equal), Validation (equal)

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Eric Selorm Agorku

Corresponding Author

Eric Selorm Agorku

Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

Correspondence:

Eric Selorm Agorku ([email protected])

Contribution: Conceptualization (lead), ​Investigation (lead), Resources (lead), Visualization (lead), Writing - review & editing (lead)

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First published: 08 January 2025
Citations: 1

Funding: The authors received no specific funding for this work.

ABSTRACT

Membrane technology is increasingly becoming a solution in wastewater treatment from textiles and dyeing, however, it has a continuing challenge on membrane fouling. In this study, we developed a series of hybrid activated clay (AC)/hydroxyapatite (HA)-polyvinyl alcohol (PVA) composite membranes for fouling control during the removal of methylene blue (MB) dye from simulated wastewater. AC and HA, known for their dye-sorption capabilities, were prepared in various ratios and incorporated as fillers in PVA to form composite membranes (PVA/AC/HA). Various characterization techniques including Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) with energy dispersive x-ray (EDX), zeta potential (ZP), and x-ray diffraction (XRD) were used to analyze the structure, morphology and crystallinity of the fillers and membranes. The integration of AC and HA significantly influenced the structure, filtration performance, antifouling properties and hydrophilic nature of the membranes. Results indicated that the membrane with a 2:1 (AC: HA) ratio was most effective in MB removal. This membrane demonstrated optimal porosity and pure water flux (PWF) of 34.4% and 70.3 L/m2/h, respectively. Furthermore, it achieved a peak MB dye rejection rate of 95.5% and exhibited the highest flux recovery rate of 83.9%, highlighting its superior antifouling performance.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability Statement

The study article's data came from an experiment. The information used to validate the study's conclusions is presented in the article and is also available upon request from the journal of the corresponding author.

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