Fate and effect of monoalkyl quaternary ammonium surfactants in the aquatic environment

Garcı́a, Marı́a Teresa; Ribosa, Isabel; Guindulain, T.; Sánchez‐Leal, J.; Vives-Rego, Josep

doi:10.1016/s0269-7491(99)00322-x

Cited by 196 publications

(145 citation statements)

References 19 publications

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“…Substances used as herbicides (metobromuron, isoproturon, etc.) or in the manufacture of dyes, such as 5-amino-6-methyl-2-benzimidazolone (AMBI) are biorecalcitrant molecules, while compounds, such as benzalkonium chloride are bactericides [111][112][113][114]. The combination of biological method with heterogeneous photocatalysis can be used to reduce the biorecalcitrance or the toxicity to bacteria to a level that permits the biological treatment.…”

Section: Biological Treatmentmentioning

confidence: 99%

The combination of heterogeneous photocatalysis with chemical and physical operations: A tool for improving the photoprocess performance

Augugliaro

Litter

Palmisano

et al. 2006

Journal of Photochemistry and Photobiology C: Photochemistry Re

420

180

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Heterogeneous photocatalysis is a process of great potential for pollutant abatement and waste treatment. In order to improve the overall performance of the photoprocess, heterogeneous photocatalysis is being combined with physical or chemical operations, which affect the chemical kinetics and/or the overall efficiency. This review addresses the various possibilities to couple heterogeneous photocatalysis with other technologies to photodegrade organic and inorganic pollutants dissolved in actual or synthetic aqueous effluents. These combinations increase the photoprocess efficiency by decreasing the reaction time in respect to the separated operations or they decrease the cost in respect of heterogeneous photocatalysis alone, generally in terms of light energy. Depending on the operation coupled with heterogeneous photocatalysis, two categories of combinations exist. When the coupling is with ultrasonic irradiation, photo-Fenton reaction, ozonation, or electrochemical treatment, the combination affects the photocatalytic mechanisms thus improving the efficiency of the photocatalytic process. When the coupling is with biological treatment, membrane reactor, membrane photoreactor, or physical adsorption, the combination does not affect the photocatalytic mechanisms but it improves the efficiency of the overall process. The choice of the coupling is related to the type of wastewater to be treated. A synergistic effect, giving rise to an improvement of the efficiency of the photocatalytic process, has been reported in the literature for many cases.

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Section: Biological Treatmentmentioning

confidence: 99%

The combination of heterogeneous photocatalysis with chemical and physical operations: A tool for improving the photoprocess performance

Augugliaro

Litter

Palmisano

et al. 2006

Journal of Photochemistry and Photobiology C: Photochemistry Re

420

180

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“…Amino acid-based surfactants, consisting of an amino acid moiety as the polar headgroup attached to one or more alkyl chains, have attracted great interest since often they are more biocompatible and environment-friendly than surfactants with conventional headgroups [17]. For instance, cationic amino acid surfactants have been shown to be less toxic and persistent in the environment than the widely used quaternary ammonium 0927 surfactants [18][19][20][21]. There is also demand for less irritating surfactants since a large part of skin problems (e.g.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical and toxicological properties of novel amino acid-based amphiphiles and their spontaneously formed catanionic vesicles

Brito

Marques

Silva

et al. 2009

Colloids and Surfaces B: Biointerfaces

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a b s t r a c tThe design of efficient liposomal systems for drug delivery is of considerable biomedical interest. In this context, vesicles prepared from cationic/anionic surfactants may offer several advantages, mainly due to their spontaneity in formation and long-term stability. There is also an impending need to produce less toxic, more biocompatible amphiphiles, while maintaining the desirable aggregation properties. In this work, we present data for acute toxicity to Daphnia magna (IC 50 ), and potential ocular irritation (HC 50 ) for some newly prepared ionic surfactants with dodecyl chains, derived from the amino acids tyrosine (Tyr), serine (Ser), hydroxyproline (Hyp) and lysine (Lys). The micellization behavior of the compounds, evaluated from surface tension measurements, is presented and compared to more conventional ionic amphiphiles. Two types of spontaneouly formed catanionic vesicles, composed either by a dodecyltrimethylammonium bromide (DTAB)/Lys-derivative and or Ser-/Lys-derivative mixture, have also been tested for their ecotoxicity and hemolytic potential. All the micelle-forming surfactants as well as the vesicle-containing mixtures are found to have lower ecotoxicity than the reference surfactant DTAB. Moreover, the results from hemolysis and hemoglobin denaturation tests show that the Tyr-and Lys-derivatives are moderately irritant, whereas the Hyp-and Ser-ones are just slightly irritant. Even more significantly, the vesicle-containing mixtures exhibit lower hemolytic activity than the neat surfactants, a positive result for their potential use in liposomal formulations.

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“…However, the reliance of the toxicity on the alkyl chain length is only applicable for compounds that are fully soluble in water. This may be due to lower bioavailability of longer chain homologues, as they have lower solubility (Garcia et al, 2001).…”

Section: Resultsmentioning

confidence: 99%

A COMPARATIVE STUDY OF THE ECOTOXICITY OF PALM-BASED METHYL ESTER SULPHONATES (MES) TO TILAPIA AND Daphnia magna

Razmah¹

2016

JOPR

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Fate and effect of monoalkyl quaternary ammonium surfactants in the aquatic environment

Cited by 196 publications

References 19 publications

The combination of heterogeneous photocatalysis with chemical and physical operations: A tool for improving the photoprocess performance

The combination of heterogeneous photocatalysis with chemical and physical operations: A tool for improving the photoprocess performance

Physicochemical and toxicological properties of novel amino acid-based amphiphiles and their spontaneously formed catanionic vesicles

A COMPARATIVE STUDY OF THE ECOTOXICITY OF PALM-BASED METHYL ESTER SULPHONATES (MES) TO TILAPIA AND Daphnia magna

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