Thomas M. Field

TL;DR: Homologue and isomer distributions of SAS in sewage sludge indicated an enrichment of the more hydrophobic components in sewageSludge during sewage treatment.

TL;DR: In this paper, a field study was conducted at a full-scale mechanical-biological sewage treatment plant at Zurich-Glatt, Switzerland, where samples of wastewater (raw sewage, and primary and secondary effluent) and sludge (raw, activated, and anaerobically-digested sludge) were collected during a 10-day period.

TL;DR: Fluorescent whitening agents (FWAs) used in laundry detergents were determined in aqueous samples from sewage treatment plants and rivers using solid-phase extraction (SPE) and high-performance liquid chromatography (HPLC) with post-column UV irradiation and fluorescence detection as discussed by the authors.

TL;DR: In this paper, a field study was conducted to determine the mass flow of secondary alkane sulfonate (SAS) surfactants in a municipal wastewater treatment plant, and the concentration of SAS in raw and anaerobically-digested sludge was determined by ion-pair/supercritical fluid extraction and injection-port derivatization GC/MS.

TL;DR: Secondary alkane sulfonate surfactants were determined in aqueous samples from sewage treatment plants using solid-phase extraction (SPE) and a single-step procedure that combines elution and injection-port derivatization for sample analysis using gas chromatography/ mass spectrometry (GC/MS).