BIO-ELECTROCHEMICAL WASTEWATER TREATING APPARATUS FOR A SIMULTANEOUS REMOVAL OF ORGANIC NITROGEN AND ORGANIC MATTER AND WASTEWATER TREATMENT METHOD USING THE APPARATUS

摘要

PURPOSE: A bioelectrochemical wastewater treating apparatus is provided to improve velocity of moving ammonia and to enable excessive nitrate in aerobic zone to move to a denitrification zone. CONSTITUTION: A bioelectrochemical wastewater treating apparatus comprises an anaerobic tank receiving waste water; an aerobic tank connected to the anaerobic tank; a cation exchange membrane; an anion exchange membrane; and a water transfer pipe. The cation exchange membrane connects the anaerobic tank and aerobic tank to each other. The anion exchange membrane connects the aerobic tank and a denitrification tank. The anaerobic tank decomposes organic material in the waste water by using a reduction electrode and microorganism. The aerobic tank forms nitrate from ammonia which flows from the anaerobic tank through the cation exchange film, by using an oxidation electrode and microorganism. [Reference numerals] (AA) Inflow water transfer pipe; (BB) Power source; (CC) Cation exchange film; (DD) Anion exchange film; (EE) Anaerobic tank; (FF) Reduction electrode; (GG) Aerobic tank; (HH) Denitrification tank; (II) Oxidation electrode; (JJ) Inflow water; (KK) Air diffuser; (LL) Aeration