investigation of sludge production in an electrocoagulation process under different conditions

For the treatment of industrial wastewater, an electrocoagulation method is used# during the electrocoagulation process, a considerable amount of sludge is automatically produced# sludge volume and sludge settling characteristics therefore are important parameters in the evaluation of the effectiveness of electrocoagulation treatment# in this study, the effect of ph, time, current density and distance between electrodes on electrocoagulation metal hydroxide sludge (emhs) was investigated by electrocoagulation# the sludge produced was investigated using four different ph (1#45, 4#6, 6#2, 9#3), six current density conditions (0#5, 1, 1#5, 2, 2#5, 3a), and the inter-electrode distances (0#5, 1, 1#5, 2, 2#5cm)# these characteristics were experimentally tested# the results show that there is linear relation between these parameters and emhs such that emhs increases with increasing current and time while decrease with more base ph#