Electrocoagulation treatment of surface waters and removal of
NOM from waters has been studied in several articles [7–16]. Jiang
et al. applied a laboratory flow-through system, which they tested
with model-colored water and lowland surface water [8]. Electrocoagulation
performed better for DOC removal than chemical coagulation
for the model-colored water, but for the lowland surface
water both processes had similar performance. Yildiz et al. studied
the effect of initial pH, supporting electrolyte, applied potential
and initial humic substance concentration on NOM removal from
synthetically prepared waters containing a high concentration of
NOM [14,15]. According to their results, the optimum initial pH
is 5 for electrocoagulation using aluminum plate electrodes. They
concluded that Na2SO4 was the most favorable supporting