Membrane technology for the recovery of detergent compounds: A review

Suárez, Leticia; Díez, M.A.; Garcı́a, Roberto; Riera, Francisco A.

doi:10.1016/j.jiec.2012.05.015

Cited by 69 publications

(30 citation statements)

References 42 publications

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“…Sodium hydroxide (NaOH) and sodium hypochlorite (NaOCl) are both commonly used in the membrane cleaning study (Kimura et al, 2004;Lin et al, 2010;Regula et al, 2013;Suárez et al, 2012;Wang et al, 2010). For instance, caustic solution was found to be efficient in restoring flux of membrane that had been fouled with humic acid (HA) (Srisurichan et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Impact of in situ physical and chemical cleaning on PVDF membrane properties and performances

Rabuni

Sulaiman

Aroua

et al. 2015

Chemical Engineering Science

117

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The effect of cleaning process at mild conditions towards PVDF membrane stability is investigated. Two commonly used cleaning agents (NaOH and NaOCl) were found to reduce PVDF membrane stability. The protein retention performance of membrane is reduced subsequent to membrane cleaning process. The stability of PVDF membrane was affected even at a chemical concentration of 0.01 M. a b s t r a c tAppropriate selection of cleaning agent is an important factor to achieve a better cleaning efficiency and this topic has become an ongoing discussion. This work assesses the impacts of sodium hydroxide (NaOH) and sodium hypochlorite (NaOCl) aqueous solution towards polyvinylidene fluoride (PVDF) stability at the typical concentrations used in membrane cleaning. The cleaned membranes were characterised using field emission scanning electron microscopy (FESEM), Fourier transform infrared (FTIR), pure water flux measurement, contact angle, protein retention and tensile testing. Membrane cleaned at elevated temperature and higher concentration presented a higher water flux than the virgin membrane which can be a worrying sign of alteration in membrane properties. The FTIR spectra indicated that the alteration in chemical composition of the membrane causes a reduction in the degree of hydrophilicity. The mechanical properties of the membrane were compromised based on the declination of tensile strength. The findings from this work suggest that the usage of NaOCl as compared to NaOH causes a more detrimental effect towards the stability of the PVDF membrane.

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Section: Introductionmentioning

confidence: 99%

Impact of in situ physical and chemical cleaning on PVDF membrane properties and performances

Rabuni

Sulaiman

Aroua

et al. 2015

Chemical Engineering Science

117

View full text Add to dashboard Cite

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“…Membrane technology can potentially offer economic, environmental and high performance benefits to virtually any process reliant on separation [1,2]. A large number of separation techniques such as distillation [3], adsorption [4], liquid-liquid extraction [5] and fractional crystallization [6] are being used for separation of liquid mixtures.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of GTMAC grafted chitosan membranes for the dehydration of low water content isopropanol by pervaporation

Sajjan

Premakshi

Kariduraganavar

2015

Journal of Industrial and Engineering Chemistry

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“…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%

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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Membrane technology for the recovery of detergent compounds: A review

Cited by 69 publications

References 42 publications

Impact of in situ physical and chemical cleaning on PVDF membrane properties and performances

Impact of in situ physical and chemical cleaning on PVDF membrane properties and performances

Synthesis and characterization of GTMAC grafted chitosan membranes for the dehydration of low water content isopropanol by pervaporation

Application of nanofiltration membranes for removal of surfactants from water solutions

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