Treatment of the oily produced water (OPW) using coagulant mixtures

Hosny, R.; Fathy, Mahmoud; Ramzi, M.; Moghny, Th. Abdel; Desouky, Said E.; Shama, S. A.

doi:10.1016/j.ejpe.2015.09.006

Cited by 81 publications

(31 citation statements)

References 7 publications

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“…Some studies found that with the increase of the specific surface area of the activated carbon, the adsorption capacity increased. Meanwhile, other studies had shown that in liquid phase adsorption, micropores were the major provider of adsorption sites, and played an important role in the activated carbon adsorption (Fathy et al 2016a, b, c, d;Hosny et al 2016).…”

Section: Mechanism Of Adsorption Of Sodium Ions On Actfmentioning

confidence: 99%

Characterization and evaluation of amorphous carbon thin film (ACTF) for sodium ion adsorption

et al. 2017

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The removal of sodium ions from aqueous solutions by adsorption onto amorphous carbon thin film (ACTF) has been studied in batch mode. In this work, the ACTF as new adsorbent was synthesized based on rice straw, then its structure and properties were taken into consideration to study its ability to adsorb sodium ions from synthetic water. The influence of pH, contact time, and temperature of the ion adsorption on ACTF was also studied using batch tests. We found that the contact time of sodium adsorption and its isothermal adsorption studied were described by pseudo-second-order kinetic model and Langmuir isotherm, respectively. Our results indicated that the adsorption of sodium ions on ACTF become be stronger and depends on pH, furthermore, the maximum adsorption capacities of sodium on ACTF recorded 107, 120 and 135 mg g -1 at 35, 45, and 65°C. The thermodynamic parameters explain that the adsorption of sodium ions on ACTF is a spontaneous process and endothermic reaction. According to adsorption studies, we found that the ACTF can be used effectively for ion chromatography or desalinate sodium ion using ion exchange process in the hybrid desalination process with insignificant loss of adsorption capacity. However, the ACTF has better properties than any other carbon materials obtained from an agricultural byproduct.

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Section: Mechanism Of Adsorption Of Sodium Ions On Actfmentioning

confidence: 99%

Characterization and evaluation of amorphous carbon thin film (ACTF) for sodium ion adsorption

et al. 2017

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“…There are some drawbacks to conventional wastewater treatment associated with the use of inorganic coagulants (e.g. aluminium and iron salts), such as high volumes of sludge generation, and high pH and dosage requirements (Hosny et al, 2016;Kweinor Tetteh et al, 2017;Yu et al, 2017). Therefore, application of polymeric organic coagulants has become the alternative method to reduce the high sludge volumes generated when utilising inorganic coagulants.…”

Section: Introductionmentioning

confidence: 99%

“…Also, inducing of dissolved air bubbles and the coagulated oil droplet floc enhance the buoyancy force exerted by the flotation process, enabling the oil droplet to float and be separated (Hosny et al 2016). To bring about attraction and adsorption of oil droplets to the surface flotation tank, for effective separation, requires the application of a polymeric organic coagulant.…”

Section: Introductionmentioning

confidence: 99%

“…The principal focus of addition of coagulant chemicals to physical separation processes is to effectively reduce the workload for downstream treatment. However, this has its own limitations, with high sludge production and a high cost of operational chemical procurement (Hosny et al, 2016;Kweinor Tetteh et al, 2017). The selection of the right type of polymeric coagulant for application depends on its sensitivity and operating conditions, applied in the right proportion to initiate neutralization, stability and mobility of the colloidal oil droplets in order to enhance treatment effectiveness (Hosny et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…However, this has its own limitations, with high sludge production and a high cost of operational chemical procurement (Hosny et al, 2016;Kweinor Tetteh et al, 2017). The selection of the right type of polymeric coagulant for application depends on its sensitivity and operating conditions, applied in the right proportion to initiate neutralization, stability and mobility of the colloidal oil droplets in order to enhance treatment effectiveness (Hosny et al, 2016). The removal of the targeted contaminants in the MOW, the type of coagulant, coagulant dosage, pH and flotation time also play an important role to enhance the treatability and efficiency (Zouboulis and Avranas, 2000;Daud et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Effects of a polymeric organic coagulant for industrial mineral oil wastewater treatment using response surface methodology (RSM)

Tetteh

Rathilal

2018

WSA

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In this study, treatment of a local South African oil refinery effluent using a coagulation flotation process is designed using response surface methodology (RSM). A Box-Behnken design (BBD) implementing the RSM is applied to evaluate the effects and interactions of three operating parameters, viz., pH, coagulant dosage and flotation time, on the treatment of mineral oil wastewater (MOW). Polyacrylamide (Zetag-FS/A50), which is a water-soluble compound, is applied to enhance the adsorption mechanism and intermolecular bridging to minimise the amount of oil droplets. In addition, due to the monomeric nature and the charge density of the Zetag-FS/A50, its efficiency was evaluated to serve as an alternative coagulant for the pretreatment of the MOW. The removal of chemical oxidation demand (COD), soap oil and grease (SOG), total suspended solids (TSS) and turbidity from the MOW were used as the response variables for the coagulation flotation process. This was done with a standard dissolved air flotation jar test. The results show that the actual COD, SOG, TSS and turbidity percentage removal at optimised conditions with a coagulant dosage of 50 mg/L were 82%, 83%,70% and 83% respectively, while the predicted response was 92%, 96%, 73% and 87% for COD, SOG, TSS and turbidity, respectively. The analysis of variance (ANOVA) showed that the proposed models are significant at a 95% confidence level. A quadratic model was generated for response variables COD and SOG, while TSS and turbidity produced a linear model. The models fitted well with the experimental data with correlation coefficients (actual R2) of 0.94 for COD, 0.91 for SOG, 0.81 for TSS, and 0.75 for turbidity.The outcome of the study shows that the RSM has merit to optimise and identify the most important factor to control and the Zetag-FS/A50 coagulant has the potential to adsorb the oil droplets in order to enhance the treatment efficiency of the process.

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Optimization of dosing and mixing time through fabrication of high internal phase emulsion (HIPE) polymerization based adsorbents for use in purification of oil in water contaminated wastewater

Soliman¹,

Naggar

El‐Din

et al. 2020

J of Applied Polymer Sci

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Disposal of oil‐contaminated wastewater is associated with serious environmental problems since it is drained in seawater or into the ground. These routes of disposal can dangerously affect the lives of both humans and aqua creatures. Therefore, this research study introduces the recovery of petroleum wastewater through the usage of polystyrene‐based adsorbents. High internal phase emulsion polymerization was the used methodology to provide the introduced structures where new approaches have been presented. Unlike the common, the influence of the fabrication parameters of polymeric adsorbents on the oil removal has been investigated. Particularly, different dosing and mixing times were utilized during the preparation stage. Their effect on the polymers surface properties and molecular weights were traced. The obtained adsorbents were subjected to the oil removal stage where optimization of synthesis conditions was taken place. Nearly 92% of the oil content (80 ppm) in the wastewater was removed using the optimized adsorbent. This adsorbent showed surface area of 28.8 m2/g and molecular weight equal 279,970 g/mol. It was acquired by applying 20 min as a dosing time and reaction time of 120 min.

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Treatment of the oily produced water (OPW) using coagulant mixtures

Cited by 81 publications

References 7 publications

Characterization and evaluation of amorphous carbon thin film (ACTF) for sodium ion adsorption

Characterization and evaluation of amorphous carbon thin film (ACTF) for sodium ion adsorption

Effects of a polymeric organic coagulant for industrial mineral oil wastewater treatment using response surface methodology (RSM)

Optimization of dosing and mixing time through fabrication of high internal phase emulsion (HIPE) polymerization based adsorbents for use in purification of oil in water contaminated wastewater

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