496-500This study presents biotreatment of textile wastewaters
using electrocoagulation and ozone processes. Ozonation process gave better
results than electrocoagulation process. For electrocoagulation, optimum
working conditions were found as follows: pH, 6.5; electrode type, iron
electrode; current density, 20 mA/cm2; and reaction time, 15 min. Under these circumstances,
values determined for electrocoagulation and ozonation processes, respectively,
were as follows: COD removal, 73, 46%; color removal, 85, 93%; BOD/COD ratio,
0.60, 0.69; and cost per unit of wastewater treatment, 1.7, 1.3 $