Electrocoagulation is a process of destabilization of suspensions, emulsions and
solutions containing contaminants by flowing direct current electric to form clots that
are easily separated. This research to determine the efficiency decrease level of
Chemical Oxygen Demand (COD), Total Suspended Solids (TSS0 and the coloring
substance. Electrocoagulation process with various current strength is 0,5, 1, 1,5, 2, 2,5
Ampere and contact time is 20, 60, 100, 140 and 180 minutes. Electrocoagulation
process with six by aluminium as electrodes. Laboratory result showed COD separation
with highest percentage reached 83.33% at 180 minutes with current strength 2,5
Ampere, TSS separation efficiency 90% and coloring substance 88.51% at 180 minutes
with current strength 2,5 Ampere.
Keywords : Electrocoagulation, wastewater, Coloring subtanc