Wastewater treatment of bottle oil washing water (BOWW) by hybrid coagulation–flocculation and biological process

Elleuch, Rayda Siala; Hammemi, Ines; Khannous, Lamia; Gharsallah, Néji

doi:10.1080/19443994.2013.793972

Cited by 12 publications

(3 citation statements)

References 14 publications

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“…9). This result is in agreement with that of [26]. Then, in a trial to test the possibility of reducing the magnetic powder dose, it is decided to use a range of 40 to 120 mg/L for each of the three magnetic powders.…”

Section: Second Set Resultssupporting

confidence: 81%

Untitled

2017

Tikrit j. eng. sci.

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Section: Second Set Resultssupporting

confidence: 81%

Untitled

2017

Tikrit j. eng. sci.

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“…Emulsified oil wastewater comes from a number of industrial fields, such as petroleum and petrochemical industry, food processing, cosmetic, and pharmaceutical production. Conventional methods such as adsorption, flocculation, membrane processes, and biological methods have been used to remove pollutants from oily wastewater. However, because of the negative influence of emulsified oil on the efficiency of membrane separation, adsorption, and biological methods, flocculation is still the most widely used technique to destabilize emulsified oil droplets and to produce large floc aggregates, which can be easily removed in subsequent clarification processes…”

Section: Introductionmentioning

confidence: 99%

Synthesis of a Novel Amphiphilic and Cationic Chitosan‐Based Flocculant for Efficient Treatment of Oily Wastewater

Lü

Zhao

et al. 2015

Adv Polym Technol

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This study reported the successful synthesis of a new amphiphilic and cationic flocculant (denoted as CS-g-PDBC)by grafting a cationic monomer, dimethyl acryloyloxyethyl benzyl ammonium chloride (DBC), onto chitosan (CS) initiated by ceric ammonium nitrate. The molecular structure and surface morphology of the newly synthesized graft copolymer CS-g-PDBC were characterized in detail by using Fourier transform infrared spectroscopy, X-ray powder diffraction, field emission scanning electron microscope, thermogravimetric analysis , and elemental analysis. Moreover, its flocculation efficiency for treating simulated emulsified oil wastewaters was evaluated and the results indicated that CS-g-PDBC was more efficient than those of CS and two other commonly used flocculants, i.e., cationic polyacrylamide and polyaluminum chloride. It was found that, as compared with CS, the successful introduction of cationic and hydrophobic groups into the CS backbone resulted in a significantly broadened flocculation window and a greatly enhanced flocculation efficiency for the prepared CS-g-PDBC in the treatment of oily wastewater, suggesting that this newly synthesized CS-g-PDBC would be a promising green agent for oily wastewater treatment. C 2015 Wiley Periodicals, Inc. Adv Polym Technol 2015; View this article online at wileyonlinelibrary.com.

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“…The pre-treatment with aluminum sulfate was more versatile for the removal of the contaminants that could hinder the performance of subsequent biological processes. Elleuch et al (2014) examined the effectiveness of coagulation and flocculation process with aluminum sulfate and polyelectrolyte (nonionic preastol) for the removal of COD and oil from the bottle oil washing wastewater. Results revealed that under the optimal operating pH 6.5, removal percentages of 87%, 95%, and 97% for COD, oil and color, respectively, were achieved by the addition of 180 mg/L Al2(SO4)3·18H2O.…”

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confidence: 99%