Comparative pilot tests were conducted to investigate the coagulation-aid effects of the combined preoxidation by potassium permanganate composites(PPC)with chl
A combined process of catalytic ozonation in the presence of a novel heterogeneous catalyst and bio-logical activated carbon was investigated for the removal of
Dent resistance of automobile body panels is an important property for automobile design and manufacture, but the study on this aspect is not still profound. Th