AWWA WQTC69461

This powerpoint presentation begins by providing a brief overview of emerging contaminants such as pharmaceuticals andpersonal care products, and household, industrial andagricultural chemicals. Study objectives include the following: monitor the occurrence of emerging contaminants inraw and treated wastewater, source water and treateddrinking water;identify the main sources of contaminants in 4 systems, includingMille-Iles / des Prairies River / Assumption / St. Lawrence;estimate the removals by WW and DW treatment plantsin the greater Montreal area; and,identify the best surrogates for groups of trace contaminants. Topics covered include: location of sampling sites around Montreal;characteristics of wastewater treatmentplants and drinking water facilities;analytical methods; and,results WW, source and treated DWs. Presentation conclusions indicate the following: intake of drinking water facility (DWF3) constitutessimultaneously the entry point of the Mille-Iles and DesPrairies rivers;pesticides/herbicides more often detected compoundsthan the pharmaceutical products;at intake of DWF4, pharmaceuticals are more abundant due tothe pharmaceutical residues coming from municipalsewage treatment plants discharges upstream, andthe pesticide compounds that come from the Ottawa River. Includes tables, figures.

Product Details

Edition:

Vol. - No.

Published:

11/01/2008

Number of Pages:

30

File Size:

1 file , 2.7 MB