AWWA ACE65308

This powerpoint presentation outlines a study on pharmaceutical chemical contamination in surface water. Topics covered include: estrogen hormones; adverse ecological effects; effect of effluents from wastewater treatment plants; sources of estrogen; compounds of interest; analytical methods; free estrogen methods; percentage recovery and RSD ofSPE - GC/MS Analysis; detection limits (ng L^-1); Presence of Emerging Contaminantsin Surface Waters; stream sampling; and, PNEC Values of Hormones andObserved Concentration Range. The second part of this study examined the aqueous phase destruction of pharmaceutical chemical contamination using ultrasound. Topics covered in this section include: Schematic and Picture of SonicationUnit; experimental system conditions; batch system equations; rate constant vs. pH; peroxide effects - degradation percentwith time; hydrogen peroxide effects -dosage and pH; effect of alkalinity; process conditions; continuous flow reactor - mass balance; correlation between molecular weightand first order degradation rates; Predicted vs. Observed Degradation; and, future/on-going work. Includes 4 references, figures.

Product Details

Edition:

Vol. - No.

Published:

06/01/2007

Number of Pages:

39

File Size:

1 file , 2.8 MB