Surfactant removal from water solutions by means of ultrafiltration and ion-exchange

Kowalska, Izabela

doi:10.1016/j.desal.2007.01.094

Cited by 58 publications

(25 citation statements)

References 19 publications

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“…Monomer adsorption on membrane surface and within the pores effected on good separation at low concentration [18]. When the concentration increased in the range below the CMC, membrane selectivity deterioration was observed.…”

Section: Separation Propertiesmentioning

confidence: 95%

“…Many studies relate to the usability of membrane techniques for removal of surface active agents from aqueous solutions [14][15]. Microfiltration (MF) is used as a pre-treatment method which enables removal of suspended solids before the main process which may be ultrafiltration (UF), recommended for the treatment of the micellar solutions (with critical micellar concentration, CMC) or nanofiltration (NF) which is regarded as an effective method in removal of surfactants in concentration below the CMC (surfactants monomers) [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

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Application of nanofiltration membranes for removal of surfactants from water solutions

Kowalska

Klimonda

2017

E3S Web Conf.

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Abstract. The objective of the study was to compare effectiveness of nanofiltration (NF) process for treatment aqueous solutions containing various types of surfactants (anionic, cationic and non-ionic). The experiments were conducted with the use of Microdyn-Nadir ® nanofiltration membranes (NP010 and NP030). The effect of surfactant type, its concentration and membrane cut-off on the process parameters (retention coefficient and permeate flux) was assessed. The experiments showed that separation of anionic and cationic surfactants depended on their concentration in the feed solutions. The retention coefficient of anionic surfactant ranged from 54 to 81% (NP010) and from 64 to 80% (NP030), while rejection of cationic surfactant varied from 48 to 85% (NP010) and from 51 to 88% (NP030). The values of retention coefficient of non-ionic surfactant were in the range of 69-77% and 79-88% for NP010 and NP030, respectively; and to a much lesser extent were depended on its concentration in the feed solutions in comparison with anionic and cationic compounds. Membrane characterized by smaller value of cut-off (NP030) allowed to obtain higher retention coefficients of surfactants. The membrane permeability deterioration was observed with the increase of surfactants concentration in the treated solutions. In all experiments, a sharp decline of the permeate flux was noticed for concentration below the CMC values.

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Section: Separation Propertiesmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Application of nanofiltration membranes for removal of surfactants from water solutions

Kowalska

Klimonda

2017

E3S Web Conf.

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“…Surfactants can alter the environmental equilibrium in groundwater and lakes [5] due to association with pharmaceuticals, biopersistence, and toxicity for animals and human beings [6,7]. Anionic surfactants usually reach aquatic ecosystems in association with polluted waters since they are widely used in a large variety of industries, including petroleum, oil refining, petrochemical, and gas industry.…”

Section: Introductionmentioning

confidence: 99%

Optimum Coagulant from Acacia mearnsii de Wild for Wastewater Treatment

2011

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A novel coagulant agent from Acacia mearnsii de Wild tannin extract was characterized for removal of the anthraquinonic colorant Alizarin Violet 3R and the anionic surfactant sodium dodecylbenzene sulfonate. This coagulant is the result of a previous optimization study. The influence of operative variables such as temperature, coagulant dosage, initial pollutant content, and pH was investigated. The new coagulant demonstrates a high affinity for dye and surfactant and is efficient within a wide range of working conditions. While the temperature does not affect the coagulant ability, an acidic pH seems to increase the contaminant removal from aqueous solutions. Implementation in a pilot plant confirms the feasibility of this coagulant not only at lab scale, but also at higher level.

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“…Cosmetics contain non-easily biodegradable xenobiotics including many toxic chemical compounds such as preservatives (normally phenol derivatives), mixtures of surfactants, dyes, fragrances and co-solvents which makes conventional biological treatment difficult [1,2]. Usual treatments of cosmetic industry effluents involve processes such as chemical oxidation [1,3], membrane technology [4], adsorption [5][6][7], flotation [8] or coagulation [9].…”

Section: Introductionmentioning

confidence: 99%

Coagulation–Fenton coupled treatment for ecotoxicity reduction in highly polluted industrial wastewater

Perdigón-Melón

Carbajo

Petre

et al. 2010

Journal of Hazardous Materials

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Surfactant removal from water solutions by means of ultrafiltration and ion-exchange

Cited by 58 publications

References 19 publications

Application of nanofiltration membranes for removal of surfactants from water solutions

Application of nanofiltration membranes for removal of surfactants from water solutions

Optimum Coagulant from Acacia mearnsii de Wild for Wastewater Treatment

Coagulation–Fenton coupled treatment for ecotoxicity reduction in highly polluted industrial wastewater

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