Although the reduction in
COD, recorded by Primo etal.(2008), with non nano-catalysts,was
higher than the reduction recorded in our study,the in itial con-
centration of COD of the OMW (16.50gL1, after 50% dilution)
was about 4 higher than that of the landfill leachates
(3.82 gL1) (Primo etal.,2008)..