Physicochemical Characterization and Kinetic Study of Flotation Process Applied to the Treatment of Produced Water

Chebbi, Salima; Belkacemi, H.

doi:10.4172/2161-0525.1000362

Cited by 3 publications

(4 citation statements)

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“…The two supposed kinetics models assumes that the PAH-bubble collision rate and bubble concentration remain constant over time. Higuchi model for PAH/water separation by IAF has also been found by the previous work (Chebbi et al 2016), and the optimal conditioning time in this study and under these operational conditions was found to be around 10 min as has been illustrated by the flotation rate of 0.12036 min -1 .…”

Section: Effect Of Both Cmc and CCC On The Flotation Kinetics Of Pahtotsupporting

confidence: 83%

“…Addition of both Tween 80 and ethanol at the CMC and the CCC, respectively, significantly increased the kinetics of flotation of PAHtot. It can be seen that the presence of Tween 80 and ethanol at these concentrations has lead to the decrease in both flotation time of PAHtot from 20 to 6 min and conditioning time from 30 to 10 min (Chebbi et al 2016) for the two conditioning times. The formation of the froth and its subsequent removal are the final two steps in flotation.…”

Section: Effect Of Both Cmc and CCC On The Flotation Kinetics Of Pahtotmentioning

confidence: 96%

“…PW properties can even be varying throughout the lifetime of the reservoir (Alanezi et al 2013;Akinwumi 2013;Hagström et al 2016). Concentrations of total polycyclic aromatic hydrocarbons (PAHtot), the main toxics and persistent in the marine environment (Fisner et al 2013), typically range from about 0.040 to about 3 mg/L (Lee and Neff 2011;Chebbi et al 2016) and consist primarily of the most water-soluble congeners, the 2-and 3-ring PAH, such as naphthalene, phenanthrene (Lee and Neff 2011). Marine animals near a PW discharge may bioaccumulate PAHtot from the ambient water, their food, or bottom sediments (Lee and Neff 2011;Almeda et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Treatment of produced water by induced air flotation: effect of both TWEEN 80 and ethanol concentrations on the recovery of PAHs

Chebbi¹,

Allouche²,

Schwarz³

et al. 2018

Nova Biotechnologica Et Chimica

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The present study investigates the application of induced air flotation (IAF) technique on PAHs (PAHs) removal performance from a real oilfield produced water of a separator cell. The quantification of total PAHs (PAHtot) was done using ultraviolet-visible spectrometry (UV-Vis) according to the naphthalene calibration curve. The UV-Vis spectra of naphthalene dissolved in a mixture of the binary solvent (water-ethanol) and the Tween 80 showed stability in the molecular orbital of C10H8. The use of small concentration of Tween 80 was revealed to be discrete in the quantification of PAHtot. The flotation process was improved at the critical micelle concentration of Tween 80 (CMC) of 2 % and the critical coalescence concentration of ethanol (CCC) of 0.5 mL/L for the PAHtot recovery of 49.76 % and the PAHtot content in the pulp of 50.24 %. At these concentrations, half of PAHtot was removed from produced water PW. Above the CMC and the CCC, the PAHtot recovery decreased and the PAHtot content in the pulp increased. It was found that there is a collector concentration at which the amount of water carrying from the pulp to the concentrate was increased and in parallel, the PAHtot recovery increased and the PAHtot content in the pulp decreased. Both of the CMC and the CCC have promoted the decrease on the conditioning time from 30 to 10 min and the flotation time from 20 to 6 min. Since the impeller speed and air flow rate were constant, the flotation of PAHs was limited. The flotation kinetics of PAHtot was described by the Higuchi model.

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Section: Effect Of Both Cmc and CCC On The Flotation Kinetics Of Pahtotsupporting

confidence: 83%

Section: Effect Of Both Cmc and CCC On The Flotation Kinetics Of Pahtotmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Treatment of produced water by induced air flotation: effect of both TWEEN 80 and ethanol concentrations on the recovery of PAHs

Chebbi¹,

Allouche²,

Schwarz³

et al. 2018

Nova Biotechnologica Et Chimica

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“…This study uses the induced air flotation as an appropriate treatment process for the recovery of oil and more precisely of PAHs. Based on the results obtained, the present study reveals that the process followed the Higuchi model and all effluents were treated to reach neutral pH, before being discharged into the sea [1].…”

Section: Editor's Notementioning

confidence: 81%

Bioaccumulation Due to Industrialization

Kalavrouziotis¹

2016

J Environ Anal Toxicol

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Treating Produced Water Using Induced Air Flotation: The Effect of Ethanol on Conditioning and Flotation of PAHs in the Presence of Tween 80

Chebbi

Allouache

Schwarz

et al. 2019

Pol. J. Environ. Stud.

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Induced air flotation (IAF) was used to recover the total polycyclic aromatic hydrocarbons (PAH tot ) from produced water (PW), a real oilfield effluent sampled from the hydrocarbon storage tanks at SONATRACH of Bejaia. Tween 80 was used as a collector at a test concentration of 0.5% (V/V%) and ethanol was used as a frother at a test dosage of 0.5 mL/1000 mL of PW. The natural presence of NaCl at greater concentrations may improve the removal efficiency of PAH tot from PW by IAF. We found that the conditioning step before initiating the flotation process is important for PAH tot recovery. A PAH tot recovery of 93.67% was achieved at 30 min of conditioning and 20 min of flotation. We also found that in the presence of Tween 80 during the conditioning step, PAH tot have a tendency to reach the water-air surface. It was disclosed that the addition of ethanol in PW during the conditioning has reduced both the conditioning time from 30 min to 10 min and the flotation time from 20 min to 12 min, which is beneficial from an economic standpoint. The effect of ethanol on the flotation kinetics of PAH tot was explained well by the Higuchi model.

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Physicochemical Characterization and Kinetic Study of Flotation Process Applied to the Treatment of Produced Water

Cited by 3 publications

References 0 publications

Treatment of produced water by induced air flotation: effect of both TWEEN 80 and ethanol concentrations on the recovery of PAHs

Treatment of produced water by induced air flotation: effect of both TWEEN 80 and ethanol concentrations on the recovery of PAHs

Bioaccumulation Due to Industrialization

Treating Produced Water Using Induced Air Flotation: The Effect of Ethanol on Conditioning and Flotation of PAHs in the Presence of Tween 80

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