Oil removal from produced water by conjugation of flotation and photo-Fenton processes

Silva, Syllos Santos da; Chiavone‐Filho, Osvaldo; Neto, Eduardo Lins de Barros; Foletto, Edson Luiz

doi:10.1016/j.jenvman.2014.08.021

Cited by 98 publications

(32 citation statements)

References 45 publications

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“…They showed that a combination of the Fenton and photoFenton processes was the oxidation method that led to the best results (Coelho et al, 2006), for example, (Tony et al, 2012) obtained 50% COD removal after using (H2O2/ Fe 2+ /UV) method under pH 3 and H2O2/Fe 2+ ratio 10. In a study performed by Silva et al (2015), the highest oil removal achieved was 84% after 45 min of reaction by using 0.44 mM and 10 mM of ferrous ions and hydrogen peroxide, respectively. (Yavuz et al, 2010) showed that the most efficient method was the electro-Fenton process followed by the electrochemical oxidation using born doped diamond (BDD) anode while the electrocoagulation was found to be ineffective for the treatment of petroleum refinery wastewater.…”

Section: Aljuboury and Palaniandymentioning

confidence: 99%

“…They have shown high efficiency to remove the organic compounds from effluents even when they were present at low concentrations (Silva et al, 2015;Masomboon et al, 2010;Paz et al, 2013;Philippopoulos and Poulopoulos, 2003). Remediation of hazardous substances was attributed to hydroxyl radical ( .…”

mentioning

confidence: 99%

“…In Fenton process, hydrogen peroxide and iron are two major chemicals. The mechanism of Fenton process has three major steps (Equations (1-4)) (Silva et al, 2015;Krutzler and Bauer, 1999…”

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confidence: 99%

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Kinetic study of inorganic carbon (IC) removal and COD removal from refinery wastewater by solar Photo-Fenton.

2017

Global NEST Journal

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This study evaluated the effectiveness of solar PhotoFenton's technique (H2O2/Fe 2+ /Solar) to treat the refinery wastewater. The experimental data were analyzed using the first and second-order kinetic models. The results clearly indicated that the pseudo-second-order models gave better prediction than the pseudo-first-order models for IC and COD removals, as indicated by the higher regression coefficients (R 2 ). The degradation rate by this treatment could be expressed as a pseudo-second-order reaction with respect to IC and COD removals. The best operating conditions, as elucidated by kapp values, were pH (2), Fe +2 (0.08 g/L), H2O2 (1 g/L), H2O2/Fe 2+ ratio (12.5), and reaction time (300 minutes). The solar Photo-Fenton reaction was very fast and reached a maximum IC and COD removals to 62% and 84%, respectively. This study demonstrated that solar Photo-Fenton oxidation process could be used effectively as a post-treatment to enhance the treatment efficiency of petroleum wastewater.

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Section: Aljuboury and Palaniandymentioning

confidence: 99%

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confidence: 99%

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Kinetic study of inorganic carbon (IC) removal and COD removal from refinery wastewater by solar Photo-Fenton.

2017

Global NEST Journal

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“…AOPs may be used in petroleum wastewater treatment for overall organic content reduction, specific pollutant destruction, sludge treatment, increasing the bioavailability of recalcitrant organics and color reduction (da Silva et al, 2015). AOPs depended on the generation and increasing the concentration of hydroxyl radicals (Brillas & Casado, 2002).…”

Section: Principle Of Aposmentioning

confidence: 99%

Performance of advanced oxidation processes to treat the petroleum wastewater A review

2017

Global NEST Journal

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The objective of this study is to summarize studies and investigations about advanced oxidation processes (AOPs) used for the treatment of petroleum wastewater, which mainly contained oil, organic matter and other compounds. The big difference was shown in the specification of wastewater among the investigated studies and a wide variety of pollutants at varying concentrations. The most compounds in petroleum wastewater were the mixture of hydrocarbons and inorganic compounds. Advanced oxidation processes (AOPs) have a capability of rapid degradation of recalcitrant pollutants in the aquatic environment. However, the literature regarding petroleum wastewater treatment is very little and advanced oxidation processes (AOPs) are still not being used on an industrial scale in oil refineries. Most studies were focused on the degradation of some pollutants found in the petroleum wastewater such as sulphides, ammonia, phenols and organic materials. This review focused on works that investigated advanced oxidation processes (AOPs) by monitoring general petroleum wastewater parameters such as TOC, COD, BOD, oil, and phenols. It presented an overview of photocatalytic degradation of pollutants in petroleum wastewater and highlighted the basics of these processes including the optimum parameters.

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“…Advanced oxidation processes (AOPs) are alternative emerging techniques for the degradation of organic pollutants in wastewater [1][2][3][4][5][6] . AOPs are divided in a variety of methods, and among them, heterogeneous Fenton reaction is one of the most interests, which to use iron-based solid catalyst, whose major advantage is its easy recovery from the solution by a field magnetic for further reutilization [7][8][9] .…”

Section: Introductionmentioning

confidence: 99%

Preparation of Nickel Ferrite/Carbon Nanotubes Composite by Microwave Irradiation Technique for Use as Catalyst in Photo-Fenton Reaction

et al. 2017

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Nickel ferrite/multi-walled carbon nanotubes (NiFe 2 O 4 /MWCNTs) composite has been rapidly synthesized via microwave irradiation technique. The structural properties of the product was investigated by X-ray diffraction (XRD), N 2 adsorption/desorption isotherms, thermogravimetric analysis (TGA), Raman spectroscopy and, scanning electron microscopy (SEM). Catalytic behavior of the composite material on the advanced photo-Fenton degradation of Amaranth dye was evaluated. The synthesis conditions employed on the microwave system were: temperature (235 °C), power (500 W), pressure (600 psi) and irradiation time (30 min). Characterization results showed the formation of hybrid material, containing a predominantly microporous structure, with surface area and total pore volume of 54 m 2 g -1 and 0.2249 cm 3 g -1 , respectively. The composite exhibited higher catalytic activity compared to the pure NiFe 2 O 4 , reaching 100% of decolorization at 60 min of reaction, which can be attributed to a synergism between NiFe 2 O 4 and MWCNTs. Therefore, NiFe 2 O 4 /MWCNTs composite can be used as a promising photo-Fenton catalyst to degrade Amaranth dye from aqueous solutions.

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Oil removal from produced water by conjugation of flotation and photo-Fenton processes

Cited by 98 publications

References 45 publications

Kinetic study of inorganic carbon (IC) removal and COD removal from refinery wastewater by solar Photo-Fenton.

Kinetic study of inorganic carbon (IC) removal and COD removal from refinery wastewater by solar Photo-Fenton.

Performance of advanced oxidation processes to treat the petroleum wastewater A review

Preparation of Nickel Ferrite/Carbon Nanotubes Composite by Microwave Irradiation Technique for Use as Catalyst in Photo-Fenton Reaction

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