Determination of PCDF/PCDD in sludges from a drinking water treatment plant influence of chlorination treatment.
A preliminary study to assess the origin and evolution of polichlorodibenzofurans (PCDFs) and polichlorodibenzo-p-dioxins (PCDDs) in a drinking water treatment plant (DWTP) was undertaken. Samples of coagulation sludges and exhausted granular activated carbon (GAC) were collected from a DWTP. Owing to the similar congener profiles obtained from sludges and GAC, a subsequent study of chlorination influence was carried out. Sludge samples from a treatment with and without the chlorination step were analysed. A complementary study of the PCB content was made. The results obtained did not reveal a marked influence of chlorination in the formation of PCDFs/PCDDs.
Rivera
J
J
Mass Spectrometry Lab., Ecotechnology Dept., C.I.D., C.S.I.C, Barcelona, Spain.
Eljarrat
E
E
Espadaler
I
I
Martrat
M G
MG
Caixach
J
J
D001572:Benzofurans / Q000032:analysis*; D002713:Chlorine; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D010865:Pilot Projects; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D012989:Soil Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification / Q000379:methods*
D001572:Benzofurans; D006843:Hydrocarbons, Chlorinated; D000072317:Polychlorinated Dibenzodioxins; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical; D002713:Chlorine