Removal of phenylamine and catechol by adsorptive micellar flocculation

摘要: Abstract The surfactant/water partition ratios for phenylamine in the flocculates formed during adsorptive micellar flocculation (AMF) are found to be around four five times higher than reported literature micelle enhanced ultra filtration. Binding phenylamine/surfactant may as high a 0.25. This suggests that highly soluble organic compounds present acidic form aqueous solution strong candidates removal by flocculation. At concentrations of 0.0128 M or higher, micelles not aggregate into large easily filtered flocs if concentration Al 3+ is less 0.024 M, but small colloidal aggregates size range hundreds nanometers. It still possible remove significant amounts and surfactant sequence filtration coarse solids through 200 nm pore membranes. efficiency smaller, hydrophobic particles capturing phenylamine, with binding phenylamine/SDS 0.35 strongly supports view hydrophobicity cannot taken main reason why capture contaminants. Catechol shows up 0.15, well above 0.1 phenol. That, being other properties similar, complexant catechol adsorbs much better phenol, reinforces superficial complexation key mechanism