Electrooxidation treatment of simulated wastewater using mixed-metal oxide anodes for bacterial decontamination

Abstract

. This study aims to explore the potential use of electro-oxidation (EO) as a decentralized wastewater treatment method. The simulated wastewater comprising bacterial consortium was treatedbyemployingmixedmetaloxide(MMO).Inparticular,alab-scalebatchelectrooxidationreac-tor was used at di ff erent operating parameters including NaCl dose ( n ), current density ( j ), and treat-ment time ( t ) in order to optimize the process using response surface methodology. The e ffi ciency of the treatment process was evaluated in terms of % inactivation and energy consumption which were found to be 99.2% and 0.42 kWh/m 3 , respectively. Under optimal conditions, it was found that the proposed technique’s overall operating cost was 0.189 $/m 3 taking into consideration the electrical energy consumed and cost of electrodes.