Prats, Daniel, Ruiz Beviá, Francisco, Vázquez, Beatriz, Rodríguez Pastor, Manuel
Removal of anionic and nonionic surfactants in a wastewater treatment plant with anaerobic digestion: a comparative study
PRATS RICO, Daniel, et al. "Removal of anionic and nonionic surfactants in a wastewater treatment plant with anaerobic digestion: a comparative study". Water Research. Vol. 31, Issue 8 (Aug. 1997). ISSN 0043-1354, pp. 1925-1930
URI: http://hdl.handle.net/10045/7759
DOI: 10.1016/S0043-1354(97)00040-7
ISSN: 0043-1354
Abstract: 
This paper presents a comparative study of the elimination of anionic surfactants (linear
alkylbenzene sulphonates, LAS) and nonionic surfactants in a conventional municipal activated sludge
plant. The LAS were analysed by high performance liquid chromatography, after extraction and
purification. The nonionic surfactants was analysed by the Wickbold method. The elimination of the
surl4actants in water, suspended solids and sludges were determined in the different stages of the
purification process. The results obtained show that over 90% of the surfactants were eliminated. The
maximum degradation took place in the aeration tank.
Keywords:Linear alkylbenzene sulphonates, Nonionic surfactants, Activated sludge process, Removal of surfactants
Elsevier
info:eu-repo/semantics/article