Treatment of heavy petroleum hydrocarbons polluted soil leachates by ultrafiltration and oxidation for surfactant recovery

Hanafiah, Shahirul Amad; Mohamed, Mahmoud Ahmed; Caradec, Sarah; Fatin‐Rouge, Nicolas

doi:10.1016/j.jece.2018.03.055

Cited by 11 publications

(6 citation statements)

References 37 publications

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“…In the MEUF, capital cost comprises the cost of pumps and UF unit that includes housing, valves, instrumentation, and other peripherals. And operating costs comprise electricity for pumping, makeup surfactant, depreciation, membrane replacement, and miscellaneous expenses (Hanafiah et al, 2018). A comparative performance assessment is shown in the Table 3.…”

Section: Cost Energy Consumption and Economic Analysismentioning

confidence: 99%

MEUF for removal and recovery of valuable organic components present in effluents: A process intensified technology

Das

Sharma

Singh

et al. 2022

Water Environment Research

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In recent years, the domain of the research space in novel separation process has been led by membrane systems as a panacea providing multifarious benefits of high separation efficiency, elimination of extreme process conditions, sustainability, and environment friendliness coupled with high operational flexibility. In this niche area, often, ultrafiltration is touted as a robust separation technique due to its high separation efficiency, membrane stability, and lower operating costs. The only drawback of relatively large pore size can be overcome by combining surfactant addition, leading to development of integrated processes termed as Micellar Enhanced Ultrafiltration. MEUF processes isolate and selectively separate valuable organics present in effluent streams.The process characteristics fit the bill as a typified example for process intensification Technology interventions for recycling of surfactants can enhance the cost-competitiveness of the process. This has the potential to develop into a broad-spectrum effluent treatment option with a change of surfactants for target contaminants. Here, in this review, we attempt to critically examine the unique features of this technology, development of spin-offs with wide-ranging applications. Specifically applications in removal of hazardous, and persistent components like dissolved organics have been critically studied. The focus was to highlight the crux of the novel technologies highlighting the efficacy and the underlying concept of process intensification. Practitioner Points• Role of MEUF as a sustainable process intensifying separation technique for removal and recovery of organics.• Novel process development using MEUF.• Comparative performance analysis to assess efficacy.• Discussions on future integrative process development.• Sustainability aspect of MEUF with possibility of byproduct recovery.

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Section: Cost Energy Consumption and Economic Analysismentioning

confidence: 99%

MEUF for removal and recovery of valuable organic components present in effluents: A process intensified technology

Das

Sharma

Singh

et al. 2022

Water Environment Research

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“…Hanafiah et al applied ultrafiltration and permanganate to recover the surfactant used in the remediation of a site polluted with polycyclic aromatic hydrocarbons (PAHs). 15 Huang et al used ferric ions in the photo-treatment of Brij35 washing waste containing 2,2′,4,4′-tetrabromodiphenyl ether. 16 Li et al used electrochemically reversible foam-enhanced flushing for PAH-contaminated soil with FC12 as the surfactant.…”

Section: Introductionmentioning

confidence: 99%

Treatment of a Complex Emulsion of a Surfactant with Chlorinated Organic Compounds from Lindane Wastes under Alkaline Conditions by Air Stripping

Sáez

García-Cervilla

Santos

et al. 2023

Ind. Eng. Chem. Res.

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Surfactant-enhanced aquifer remediation is commonly applied in polluted sites with dense non-aqueous phase liquids (DNAPLs). This technique transfers the contamination from subsoil to an extracted emulsion, which requires further treatment. This work investigated the treatment of a complex emulsion composed of a nonionic surfactant and real DNAPL formed of chlorinated organic compounds (COCs) and generated as a lindane production waste by air stripping under alkaline conditions. The influence of the surfactant (1.5–15 g·L–1), COC concentrations (2.3–46.9 mmol·L–1), and temperature (30–60 °C) on the COC volatilization was studied and modeled in terms of an apparent constant of Henry at pH > 12. In addition, the surfactant stability was studied as a function of temperature (20–60 °C) and surfactant (2–10 g·L–1), COC (0–70.3 mmol·L–1), and NaOH (0–4 g·L–1) concentrations. A kinetic model was successfully proposed to explain the loss of surfactant capacity (SCL). The results showed that alkali and temperature caused the SCL by hydrolysis of the surfactant molecule. The increasing surfactant concentration decreased the COC volatility, whereas the temperature improved the COC volatilization. Finally, the volatilization of COCs in alkaline emulsions by air stripping (3 L·h–1) was performed to evaluate the treatment of an emulsion composed of the COCs (17.6 mmol·kg–1) and surfactant (3.5 and 7 g·L–1). The air stripping was successfully applied to remove COCs (>90%), reaching an SCL of 80% at 60 °C after 8 h. Volatilization can remove COCs from emulsions and break them, enhancing their further disposal.

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“…Selective oxidation of organic contaminants in the emulsion has been proposed and tested successfully [ 9 , 10 , 11 , 12 ]. Still, the cost of reagents and the loss of surfactant capacity after treatment can decrease the sustainability of this treatment.…”

Section: Introductionmentioning

confidence: 99%

“…The more refractory the contaminant is to oxidation, the higher the unproductive consumption of the oxidant. Selective adsorption of the organic pollutants in the emulsion on activated carbon and selective organic compound retention by membranes have also been proposed to treat contaminated emulsions [ 10 , 14 , 15 , 16 , 17 ]. However, membrane fouling and surfactant adsorption decrease the effectiveness of these methods.…”

Section: Introductionmentioning

confidence: 99%

Non-Ionic Surfactant Recovery in Surfactant Enhancement Aquifer Remediation Effluent with Chlorobenzenes by Semivolatile Chlorinated Organic Compounds Volatilization

Sáez

Santos

García-Cervilla

et al. 2022

IJERPH

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Surfactant enhanced aquifer remediation is a common treatment to remediate polluted sites with the inconvenience that the effluent generated must be treated. In this work, a complex mixture of chlorobenzene and dichlorobenzenes in a non-ionic surfactant emulsion has been carried out by volatilization. Since this techhnique is strongly affected by the presence of the surfactant, modifying the vapour pressure, Pv0, and activity coefficient, γ, a correlation between Pvj0γj and surfactant concentration and temperature was proposed for each compound, employing the Surface Response Methodology (RSM). Volatilization experiments were carried out at different temperatures and gas flow rates. A good agreement between experimental and predicted remaining SVCOCs during the air stripping process was obtained, validating the thermodynamic parameters obtained with RSM. Regarding the results of volatilization, at 60 °C 80% of SVCOCs were removed after 6 h, and the surfactant capacity was almost completely recovered so the solution can be recycled in soil flushing.

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Treatment of heavy petroleum hydrocarbons polluted soil leachates by ultrafiltration and oxidation for surfactant recovery

Cited by 11 publications

References 37 publications

MEUF for removal and recovery of valuable organic components present in effluents: A process intensified technology

MEUF for removal and recovery of valuable organic components present in effluents: A process intensified technology

Treatment of a Complex Emulsion of a Surfactant with Chlorinated Organic Compounds from Lindane Wastes under Alkaline Conditions by Air Stripping

Non-Ionic Surfactant Recovery in Surfactant Enhancement Aquifer Remediation Effluent with Chlorobenzenes by Semivolatile Chlorinated Organic Compounds Volatilization

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