Characteristics of Organics and Nutrients Removal in Municipal Wastewater Treatment by Electrolysis using Copper Electronic Conductor

摘要

A novel electrolytic treatment process installed with copper electronic conductors was developed, andit was applied for the treatment of municipal wastewater under the conditions of constant voltage andadjustable current in a continuous mode. The organics could be successfully removed in very shorterreaction time through the electro-coagulation reaction. The fraction of copper hydroxide removed fromthe electronic conductor has been increased in the effluent as the electro-coagulation reactionprogressed. The nitrogen could be reduced by the elimination of ammonia nitrogen, in earlyelectrolysis reaction, and the phosphorus removal could be also accomplished by the formation ofcomplicated compounds with metal such as copper phosphate. By the aeration after electrolysisreaction, the additional removal of organics by the oxidation and nitrogen by ammonia stripping couldbe achieved successfully. Thus, the electrolytic treatment process with copper electronic conductorswould be good alternative method of conventional municipal wastewater treatment technologies forthe simultaneous removal of organics and nutrients.