The role of mixing in high performance Adsorptive Micellar Flocculation

Talens-Alesson, Federico I.; Švábová, Martina; Šváb, Marek

doi:10.1016/j.colsurfa.2009.11.021

Cited by 10 publications

(2 citation statements)

References 22 publications

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“…For ptoluic acid, the initial concentration range was set from 10 to 150 mg L −1 , and the removal efficiency decreased from 93.19% to 90.93%. High removal rates of these organics over a relatively wide initial concentration range could be achieved with the AMF process in this study (Talens-Alesson et al, 2010).…”

Section: Effects Of Ph On the Location Of The Organic Compounds In Thmentioning

confidence: 75%

“…Thus, AMF offers many advantages, such as operational simplicity, high efficiency, short times to reach equilibrium, and recyclability (Almeida and Talens‐Alesson, ; Anthony and Talens‐Alesson, ). Previous studies have demonstrated that AMF can be used to remove contaminants, for instance, phenol and benzoic acid, from industrial wastewaters (Talens‐Alesson et al, , ). Several key factors, including flocculation time, pH, and concentration, can affect flocculation behavior.…”

Section: Introductionmentioning

confidence: 99%

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Removal of Organic Compounds Containing a Benzene Ring from Water by Adsorptive Micellar Flocculation

Wang

Tian

et al. 2018

J Surfact & Detergents

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The removal of low‐molecular‐weight benzoic acid (benzoic acid, p‐toluic acid, and salicylic acid)‐derived and aniline (aniline, 4‐chloroaniline, and 2,6‐dimethylaniline)‐derived organic compounds through adsorptive micellar flocculation (AMF) with anionic surfactants (sodium dodecyl sulfate, SDS) and aluminum sulfate was demonstrated. The interactions between SDS and the organic compounds were studied using 1H nuclear magnetic resonance (NMR) spectroscopy. Batch AMF experiments were conducted to study the influence of several factors on target pollutant removal. For benzoic acid derivatives, the removal rate was improved by increasing the SDS and Al concentrations, while increases in the concentrations of the organic pollutant tended to decrease the removal rate. The highest removal efficiencies were observed with p‐toluic acid (95.4%) > salicylic acid (84.5%) > benzoic acid (76.5%) under weakly acidic conditions due to the greater hydrophobicity of p‐toluic acid and the complexation of the Al salts and the salicylic acid. The removal rates of the aniline derivatives were positively related to the SDS concentration and negatively related to the pH. At a pH of 3.0, the highest removal rates of aniline, 4‐chloroaniline, and 2,6‐dimethylaniline (91.3%, 98.0%, and 97.6%, respectively) were observed. For aniline compounds, charge neutralization between the SDS anions and aniline cations dominated the removal process. These findings provide new insights for the development of further applications of AMF for the removal of benzoic acid and aniline derivatives.

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Section: Effects Of Ph On the Location Of The Organic Compounds In Thmentioning

confidence: 75%