Catonic Surfactants

Cross, John; Singer, Eleanor

doi:10.1201/9780429270376

Cited by 17 publications

(2 citation statements)

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“…About 41% to 49% of industrial chemicals preregistered at the European Chemicals Agency and substances already registered under the REACH legislation are IOC, which comprise anionic, cationic, amphoteric, or permanently charged compounds. , They are produced in high numbers because of their manifold applications. Cationic surfactants, for example, are being used as biocides and surfactants in consumer products, personal care products and numerous industrial processes. − Most common cationic surfactants consist of one hydrophobic alkyl chain, which is linked to a positively charged amine or ammonium headgroup. Kierkegaard et al found 29 cationic surfactants among the registered dossiers within REACH with substantial production volumes ≥1000 tonnes/year, which necessitates an assessment of their bioaccumulative potential according to international guidance documents .…”

Section: Introductionmentioning

confidence: 99%

Bioconcentration Assessment of Three Cationic Surfactants in Permanent Fish Cell Lines

Balk,

Hüsser,

Hollender

et al. 2024

Environ. Sci. Technol.

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Cationic surfactants are used in many industrial processes and in consumer products with concurrent release into the aquatic environment, where they may accumulate in aquatic organisms to regulatoryly relevant thresholds. Here, we aimed to better understand the bioconcentration behavior of three selected cationic surfactants, namely N,N-dimethyldecylamine (T10), N-methyldodecylamine (S12), and N,N,N-trimethyltetradecylammonium cation (Q14), in the cells of fish liver (RTL-W1) and gill (RTgill-W1) cell lines. We conducted full mass balances for bioconcentration tests with the cell cultures, in which the medium, the cell surface, the cells themselves, and the plastic compartment were sampled and quantified for each surfactant by HPLC MS/MS. Accumulation in/to cells correlated with the surfactants' alkyl chain lengths and their membrane lipid−water partitioning coefficient, D MLW . Cell-derived bioconcentration factors (BCF) of T10 and S12 were within a factor of 3.5 to in vivo BCF obtained from the literature, while the cell-derived BCF values for Q14 were >100 times higher than the in vivo BCF. From our experiments, rainbow trout cell lines appear as a suitable conservative in vitro screening method for bioconcentration assessment of cationic surfactants and are promising for further testing.

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Section: Introductionmentioning

confidence: 99%

Bioconcentration Assessment of Three Cationic Surfactants in Permanent Fish Cell Lines

Balk,

Hüsser,

Hollender

et al. 2024

Environ. Sci. Technol.

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“…One of the main challenges in wastewater treatment is the treatment of surfactants. This is related to surfactants' wide use and variety, as well as their negative effects on the wastewater treatment process and, more significantly, on the environment (Boethling, 2019;Mousavi et al, 2011;Pettersson et al, 2000;Yuan et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Improving the Removal of Anionic Surfactant in Cardboard Industry Wastewater by Coagulation/Flocculation: Process Optimization with Response Surface Methodology

Harif

Aboulhassan

Bammou

et al. 2023

Water Air Soil Pollut

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Response surface methodology (RSM) and Box–Behnken design (BBD) were investigated to optimize the coagulation–flocculation process (CF) of cardboard industry effluent using polyaluminum chloride (PAC) and cationic polyacrylamides (c-PAM). The aim is to identify the optimum combination of coagulant dose, pH, and flocculant dosage for the highest removal efficacy of chemical oxygen demand (COD) and anionic surfactant removal. According to the results, COD reduction was principally controlled by PAC and c-PAM, while anionic surfactant was affected by pH and PAC. In addition, COD and anionic surfactant removal models fitted well with the experimental results (R2 > 0.85). Coagulation/flocculation using optimum conditions of pH, PAC, and c-PAM led to the total removal of anionic surfactant and the reduction of more than 95% of COD.

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