Electrochemical-based processes for produced water and oily wastewater treatment: A review

Ghaffarian Khorram, Atousa; Fallah, Narges; Nasernejad, Bahram; Afsham, Neda; Esmaelzadeh, Mahdi; Vatanpour, Vahid

doi:10.1016/j.chemosphere.2023.139565

Cited by 15 publications

(2 citation statements)

References 216 publications

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“…Electrochemical methods have been proposed for this objective, such as electrochemical oxidation, electro-Fenton, electrocoagulation, and electrochemical membrane reactor. However, disadvantages include energy expenditure in the process, generation of byproducts, and use of high-cost electrodes . Conversely, membrane technologies are a promising but underutilized alternative due to the need to develop membranes that are more resistant to fouling and are reusable and mainly allow effective environmental remediation. − The majority of studies apply membranes only for the permeation of pollutants, mainly in ultrafiltration, microfiltration, and direct or reverse osmosis systems .…”

Section: Introductionmentioning

confidence: 99%

Magnetic Membranes for the Remediation of Oil-Industry Effluents: Efficient Polyaromatic Hydrocarbon Removal and Marine Oil-Spill Cleanup

Costa,

Oliveira,

Romão

et al. 2023

ACS EST Water

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The contamination of aquatic bodies from oil or petroleum spills is increasingly common throughout the world. In this context, our very current and relevant approach was based on the preparation of magnetic mixed matrix membranes (MMMs) from the incorporation of magnetic nanomaterials to act in crude oil remediation systems. The MMMs were prepared via the casting method using magnetic nanomaterials as filler materials. They were applied to water static sorption, transport tests, permeation of polycyclic aromatic hydrocarbon (PAH), and crude oil remediation. The MMMs exhibited a homogeneous aspect with a good dispersion and excellent compatibility between the magnetic nanomaterials and the polymeric matrices as well as a good elemental distribution in the MMMs. Furthermore, it was possible to observe a decrease in the glass transition temperature (T g) for the poly(sulfone)-based (PSf) MMMs with cobalt ferrite (CoFe2O4), and the same behavior was seen for the poly(sulfone) acrylate-based (PSf-Ac) MMM with 1.0 wt % of MCM-48-CoFe2O4–NH2 (Mobil Composition Matter of number 48). The PAH permeation tests showed that a permeation equilibrium was obtained in 24 h. The permeation, retention, and removal rates varied between: (i) 2.22–5.40%, 94.60–97.78%, and 13.91–86.53% for the PSf-based membranes and (ii) 2.23–5.44%, 94.56–97.77%, and 1.67–95.73% for the PSf-Ac-based MMMs. Finally, the results of oil remediation exhibited excellent removal values for light and heavy oil in fresh water and seawater, whose removal efficiency was between 94.08 and 99.99%. Therefore, we are optimistic about the possibility of proposing the real use of a multifunctional membrane to act in the efficient removal of organic pollutants from wastewater as well as in the magnetic removal of petroleum in aquatic bodies.

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Section: Introductionmentioning

confidence: 99%

Magnetic Membranes for the Remediation of Oil-Industry Effluents: Efficient Polyaromatic Hydrocarbon Removal and Marine Oil-Spill Cleanup

Costa,

Oliveira,

Romão

et al. 2023

ACS EST Water

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“…Consequently, the preparation of efficient oil/water separation materials has become a critical focus in treating oily wastewater pollution. Recently, numerous methods have been reported to address this issue, such as sedimentation separation [ 7 ], filtration [ 8 , 9 , 10 ], membrane separation [ 11 , 12 , 13 , 14 ], the flotation method [ 15 ], adsorption [ 16 , 17 , 18 ], coagulation [ 19 , 20 ], and chemical solidification [ 21 , 22 , 23 ]. However, these methods still have drawbacks, including high cost, poor separation efficiency, high energy consumption, and a lack of environmental friendliness, which limit their widespread application.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophilic and Underwater Superoleophobic Copper Mesh Coated with Bamboo Cellulose Hydrogel for Efficient Oil/Water Separation

Peng,

Zhao,

Huang

et al. 2023

Polymers

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Super-wetting interface materials have shown great potential for applications in oil–water separation. Hydrogel-based materials, in particular, have been extensively studied for separating water from oily wastewater due to their unique hydrophilicity and excellent anti-oil effect. In this study, a superhydrophilic and underwater superoleophobic bamboo cellulose hydrogel-coated mesh was fabricated using a feasible and eco-friendly dip-coating method. The process involved dissolving bamboo cellulose in a green alkaline/urea aqueous solvent system, followed by regeneration in ethanol solvent, without the addition of surface modifiers. The resulting membrane exhibited excellent special wettability, with superhydrophilicity and underwater superoleophobicity, enabling oil–water separation through a gravity-driven “water-removing” mode. The super-wetting composite membrane demonstrated a high separation efficiency of higher than 98% and a permeate flux of up to 9168 L·m−2·h−1 for numerous oil/water mixtures. It also maintained a separation efficiency of >95% even after 10 cycles of separation, indicating its long-term stability. This study presents a green, simple, cost-effective, and environmentally friendly approach for fabricating superhydrophilic surfaces to achieve oil–water separation. It also highlights the potential of bamboo-based materials in the field of oil–water separation.

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Advanced methods for treating gemfibrozil and carbamazepine in wastewater: a review

Sivanesan,

Rameshwar,

Sivaprakash

et al. 2024

Environ Chem Lett

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The contamination of ecosystems by pharmaceuticals and personal care products represents a significant threat to public health, necessitating innovative approaches to clean wastewater before release into aquatic environments. Here, we review the emerging strategies and methods for the remediation of gemfibrozil and carbamazepine, emphasizing toxicological impacts, advanced oxidation processes, membrane-based removal techniques, and the underlying mechanisms driving these removal processes. We found that engineered composites with strong electron transfer capabilities can enhance the removal efficiency as they boost the generation of highly oxidative radicals. For instance, a nano zero-valent ion incorporated carbon–nitrogen composite removes 100% of gemfibrozil within 60 min. Similarly, a ruthenium perovskite-based heterogeneous catalyst achieved 100% elimination of carbamazepine in 7.5 min.

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Electrochemical-based processes for produced water and oily wastewater treatment: A review

Cited by 15 publications

References 216 publications

Magnetic Membranes for the Remediation of Oil-Industry Effluents: Efficient Polyaromatic Hydrocarbon Removal and Marine Oil-Spill Cleanup

Magnetic Membranes for the Remediation of Oil-Industry Effluents: Efficient Polyaromatic Hydrocarbon Removal and Marine Oil-Spill Cleanup

Superhydrophilic and Underwater Superoleophobic Copper Mesh Coated with Bamboo Cellulose Hydrogel for Efficient Oil/Water Separation

Advanced methods for treating gemfibrozil and carbamazepine in wastewater: a review

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