鉄電極を用いた新しいリン除去・回収法に関する基礎的研究

抄録

The possibility of removing and recovering phosphate from wastewater by a novel electrochemical method was investigated experimentally. In this electrochemical method, iron electrodes are immersed in phosphate solution and DC is applied to coagulate the phosphate onto the surface of anode. Experimental results demonstrated that at electric current densities ranged from about 0.001 to 0.1 mA/cm², phosphate was well coagulated on the surface of anode, satisfying the mass balance on P at the bulk liquid and the electrode surface. Furthermore, a model heavy metal ion, Cu²⁺, deposited on the counter electrode, cathode; therefore, it was thought a relatively high quality of phosphate is obtainablein the present electrochemical method.