Electrokinetic pretreatment of seawater to decrease the Ca2+, Mg2+, SO42− and bacteria contents in membrane desalination applications

Abdulkarem, Elham; Ahmed, Iftikhar; Abu-Zahra, Mohammad R.M.; Hasan, Shadi W.

doi:10.1016/j.desal.2016.06.004

Cited by 15 publications

(6 citation statements)

References 28 publications

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“…Many techniques, based on electrokinetic remediation principles, have been developed and implement to treat seawater including capacitive deionization (CDI), electrodialysis (ED), electrokinetic pretreatment and electrokinetic coupled with reverse osmosis hybrid technique. The capacitive deionization (CDI) is used to remove cations and anions from seawater using electrokinetic treatment principles [5,9,10,11,12]. In electrokinetic treatment, two pairs of electrodes are used where one pair of electrodes serves as an anode and the other pair of electrodes arranged to serve as a cathode.…”

Section: Electrokinetics Applications In Desalinationmentioning

confidence: 99%

“…CDI has seen considerable advances in the last decade including the use of selective membranes, flow electrodes, and flow through electrodes [14,15]. However, the membrane fouling is considered one of the disadvantages facing the implementation of membrane in this technique [9]. Recently, some studies suggested the use of electric field to reduce membrane biofouling.…”

Section: Electrokinetics Applications In Desalinationmentioning

confidence: 99%

“…The results showed that the membrane biofouling was reduced significantly due the electrokinetics processes which reduce bacteria metabolism. For instance, the high pH environment at the cathode and the low near the anode has detrimental effect on the growth of bacteria [9]. Electrodialysis (ED) of seawater is another method that has been developed based on the electrokinetics concept [16].…”

Section: Electrokinetics Applications In Desalinationmentioning

confidence: 99%

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Applications of Electrokinetic Remediation inEnvironmental Restoration

Hassan¹

2021

World Congress on Civil, Structural, and Environmental Engineering

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Electrokinetic remediation (EK) is well developed technique for removing pollutants and remediation of contaminated sites. EK has been utilized in mitigation of contamination with heavy metal (heavy metal mobilization) and hydrocarbon removal (degradation by bioremediation coupled with EK). Recently EK has been introduced in the field of desalination of saline water and remediation of sludge from wastewater. The past decade has seen a remarkable number of innovations in the exponentially growing field of remediation. The principles of the EK remediation in desalination of saline water and remediation of wastewater sludge are outlined and discussed. The contaminant removal mechanisms and the phenomena associated with EK are presented. Also, the challenges facing electrokinetic remediation are reviewed including the development of pH gradient between the electrodes, the corrosion of electrode materials and the power required for EK remediation. This manuscript covers a review on key aspects of application of EK in desalination, wastewater and bioremediation. The discussion includes, various types of EK, the contaminants and their removal mechanisms, challenges and opportunities, electrode materials, applications and theory with a focus on the use of solar power in EK applications. The use of solar panels to generate electricity for EK can result in reducing the cost of the treatment and minimizing the adverse environmental impact of using hydropower. Innovations and techniques used in controlling pH gradient in EK remediation are discussed. In addition, an attempt has been taken to project future advances in the field of EK and facilitate these advances by framing key unsolved problems in EK and potential research areas. This review covers the challenges facing EK application and the advantages and disadvantages of the proposed solutions. Also, evaluation of the current state-of-the-art of EK technology is provided.

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Section: Electrokinetics Applications In Desalinationmentioning

confidence: 99%

Section: Electrokinetics Applications In Desalinationmentioning

confidence: 99%

Section: Electrokinetics Applications In Desalinationmentioning

confidence: 99%

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Applications of Electrokinetic Remediation inEnvironmental Restoration

Hassan¹

2021

World Congress on Civil, Structural, and Environmental Engineering

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“…As a result, the membrane requires physical and chemical cleaning, hence increasing the cost of maintenance. EC reduces membrane fouling and prevents undesired heavy metal ions to be transferred into the treated wastewater , .…”

Section: Introductionmentioning

confidence: 99%

Selectivity of Nanoporous MnO₂ and TiO₂ Membranes for Residual Contaminants in Treated Wastewater

et al. 2018

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Treated effluent from an electrically enhanced membrane bioreactor (eMBR) was filtered through MnO 2 or TiO 2 nanoporous membranes for the removal of residual heavy metals, bacteria, and biological oxygen demand (BOD). The fresh and spent membranes were characterized via energy-dispersive X-ray spectroscopy (EDAX), zeta potential analysis, and thermogravimetric analysis (TGA). Water analysis was performed by means of UV/Vis spectrophotometry. For most contaminants, eMBR-TiO 2 showed highest removal efficiency compared to MnO 2 because of the combined adhesion and photocatalytic effects of TiO 2 . Meanwhile, eMBR-MnO 2 provided higher removal efficiency for Fe.

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“…Electrode configurations in the electrokinetic batch cells: (a) anode-cathode, (b) anode-cathode-cathodeanode, and (c) cylindrical (redrawn after Abdulkarem et al[41]). …”

mentioning

confidence: 99%

Electrokinetic Membrane Bioreactors

Amini¹,

Mohamedelhassan²,

Liao³

2020

Advances in Membrane Technologies

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The subject of electrokinetics has received considerable interests in the field of membrane bioreactors (MBRs) in recent years. Electrokinetic transport mechanism and associated reactions have wide applications in separations and MBRs. The success of electrokinetic-enhanced separations would highly depend on the study of its conceptions, perhaps leading to opening vast research need. It is also conceivable that the theoretical study of electrokinetic phenomena, especially in the MBRs, indeed leads to profound success in the bioreactor research, design, and operations. This chapter is aiming to overcome the enigma in this field of research and make the fundamental concepts and recent advances readily accessible to researchers and practitioners in membrane technologies.

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Electrokinetic pretreatment of seawater to decrease the Ca2+, Mg2+, SO42− and bacteria contents in membrane desalination applications

Cited by 15 publications

References 28 publications

Applications of Electrokinetic Remediation inEnvironmental Restoration

Applications of Electrokinetic Remediation inEnvironmental Restoration

Selectivity of Nanoporous MnO₂ and TiO₂ Membranes for Residual Contaminants in Treated Wastewater

Electrokinetic Membrane Bioreactors

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Electrokinetic pretreatment of seawater to decrease the Ca2+, Mg2+, SO42− and bacteria contents in membrane desalination applications

Cited by 15 publications

References 28 publications

Applications of Electrokinetic Remediation inEnvironmental Restoration

Applications of Electrokinetic Remediation inEnvironmental Restoration

Selectivity of Nanoporous MnO2 and TiO2 Membranes for Residual Contaminants in Treated Wastewater

Electrokinetic Membrane Bioreactors

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Product

Resources

About

Selectivity of Nanoporous MnO₂ and TiO₂ Membranes for Residual Contaminants in Treated Wastewater