AWWA WQTC71620

The electrochemical oxidation of water containing chloride (Cl^-) ions has emerged as apotential disinfection and oxidation strategy in which the mixed oxidants, such as ozone,chlorine, and •OH, are generated on-site (Kerwick et al., 2005). However, the formation ofharmful disinfection byproducts such as chlorate (ClO₃^-) and perchlorate (ClO₄^-) represents anundesirable side of this process. This study investigates the characteristic ofchlorate formation in electrochemical processes using Cl^-. In detail, the effects of the followingparameters on chlorate formation were investigated: the mixed oxidants (O₃, HOCl/OCl^-, and •OH), dissolved organic carbon (DOC; 0, 1.5, and 2.2 mg L^-1), pH values (3.6, 5.5, 7.0, 8.0, and9.0).

Product Details

Edition:

Vol. - No.

Published:

11/01/2009

File Size:

1 file , 870 KB