Occurrence and fate of organic pollutants in combined sewer systems and possible impacts on receiving waters.
Selected organic pollutants are classified based on an intensive literature survey. Two wastewater parameters (COD and ammonium) and six selected organic pollutants (polycyclic aromatic hydrocarbons (PAH), diethylhexylphthalate (DEHP), estradiol (E2), ethinylestradiol (EE2), ethylenediamine tetraacetic acid (EDTA) and nitrilo triaceticacid (NTA)) are specified. As a result, for the first time representative concentrations in dry weather flow, surface runoff and effluent of wastewater treatment plants (WWTPs) in combined sewer systems (CSS) are stated. The second part of the paper presents a first estimation of main emission out of a combined sewer system and possible receiving water impacts in terms of (1) annual discharged loads calculated by pollution load simulations in a hypothetical catchment and (2) concentrations calculated in combined sewer overflows (CSO) discharges and resulting receiving water concentrations.
Institute of Urban Water Management, University of Kaiserslautern, Paul-Ehrlich-Strasse 14, Kaiserslautern, Germany. awelker@rhrk.uni-kl.de
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Welker
D004051:Diethylhexyl Phthalate / Q000032:analysis; D004492:Edetic Acid / Q000032:analysis; D004784:Environmental Monitoring; D004958:Estradiol / Q000032:analysis; D004997:Ethinyl Estradiol / Q000032:analysis; D009571:Nitrilotriacetic Acid / Q000032:analysis; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis; D045483:Rivers / Q000737:chemistry; D012722:Sewage / Q000032:analysis*; D014865:Waste Disposal, Fluid; D014872:Water Movements; D014874:Water Pollutants, Chemical / Q000032:analysis*
D011084:Polycyclic Aromatic Hydrocarbons; D012722:Sewage; D014874:Water Pollutants, Chemical; D004997:Ethinyl Estradiol; D004958:Estradiol; D004492:Edetic Acid; D004051:Diethylhexyl Phthalate; D009571:Nitrilotriacetic Acid