In this paper, removal of phosphate from landscape water using an electrocoagulation process with aluminum electrodes powered directly by photovoltaic solar modules was investigated. The results showed that total phosphate (TP) residual concentration in landscape water decreases with an increasing electrolysis time. A first order kinetics about TP removal is concluded. An optimum electrode gap of 25 mm is determined. Conductivity of landscape water was adjusted by adding NaCl, and an optimum initial conductivity range of 765-1135 μS/cm can be obtained. In an overcast day, a higher TP remova...
