Comparison of TCPP concentrations in sludge and wastewater in a typical German sewage treatment plant-comparison of sewage sludge from 20 plants.
Tris(chloro-isopropyl)phosphate (TCPP) was identified by GC-MS by comparing mass spectra and retention times to original standards. The concentrations in wastewater of a sewage treatment plant's influent and effluent were analysed (520 ng l(-1) and 380 ng l(-1), respectively (mean values). The concentrations of TCPP in the wastewater inflow exhibited a high variability. The elimination of this compound in the sewage treatment plant also exhibits a high variability but is low. Additionally the concentrations in sewage sludge of the same plant were determined (mean value 5100 ng g(-1) dry weight; 1700 ng g(-1) wet weight, respectively). For a comparison sludge samples from twenty other plants were analysed. In these samples concentrations ranging from 1000-20000 ng g(-1)(dry weight) were determined. Thus sorption to sludge does occur to some extent.
Bester
Kai
K
Waste and Wastewater Management, Institute for Environmental Analysis, University Duisburg-Essen, Universitats Str, 15, 45141, Essen, Germany. Kai.bester@uni-essen.de
D000327:Adsorption; D004784:Environmental Monitoring; D005858:Germany; D010755:Organophosphates / Q000032:analysis*; D012722:Sewage / Q000737:chemistry*; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000032:analysis*
D010755:Organophosphates; D012722:Sewage; D014874:Water Pollutants, Chemical; C034906:Fyrol PCF