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Open AccessArticle

Towards a Sustainable Water Supply: Humic Acid Removal Employing Coagulation and Tangential Cross Flow Microfiltration

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Chemical Engineering Technology Department, Jubail Industrial College, Jubail Industrial City 31961, Saudi Arabia
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King Abdulaziz City for Science and Technology (KACST), National Centre for Water Technologies, Riyadh 12354, Saudi Arabia
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Sustainable Environment Research Centre (SERC), Faculty of Engineering, Computing and Science, University of South Wales, Pontypridd CF37 1DL, UK
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Centre for Water Advanced Technologies and Environmental Research (CWATER), College of Engineering, Swansea University, Fabian Way, Swansea SA1 8EN, UK
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NYUAD Water Research Centre, New York University Abu Dhabi, P.O. Box 129188, Saadiyat Island Abu Dhabi 129188, UAE
*
Author to whom correspondence should be addressed.
Water 2019, 11(10), 2093; https://doi.org/10.3390/w11102093
Received: 30 August 2019 / Revised: 24 September 2019 / Accepted: 30 September 2019 / Published: 8 October 2019
(This article belongs to the Special Issue Membrane-Based Processes and Applications for Water Reclamation)
Synthetic solutions assimilating irrigated groundwater containing varying concentrations of humic acid (10 mg/L), saline (10–35 g/L) and metal agents (5–10 mg/L), were processed through a ceramic microfiltration membrane (Sterilox Ltd., 0.5 μm). This was done with enrichment schemes using polymeric coagulants (PDADMAC) applied to enhance the removal of the above-mentioned pollutants. The study was conducted with the scope of investigating the feasibility of sequential and hybrid coagulation and microfiltration as a method of choice for drinking water treatment. Membrane microfiltration is easily scalable into various arrangements, allowing versatility in operation and enrichment schemes, with a relatively lower cost which other treatment practices do not allow. The highest humic acid removal, 91.11% was achieved with hybrid coagulation. View Full-Text
Keywords: groundwater; water treatment; water reclamation; microfiltration; coagulation; water sustainability; PDADMAC groundwater; water treatment; water reclamation; microfiltration; coagulation; water sustainability; PDADMAC
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MDPI and ACS Style

Hakami, M.W.; Alkhudhiri, A.; Zacharof, M.-P.; Hilal, N. Towards a Sustainable Water Supply: Humic Acid Removal Employing Coagulation and Tangential Cross Flow Microfiltration. Water 2019, 11, 2093.

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