Author/Authors :
J. Rivera، نويسنده , , E. Eljarrat، نويسنده , , I. Espadaler، نويسنده , , M. G. Martrat، نويسنده , , J. Caixach، نويسنده ,
Abstract :
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.
