Electrochemical removal of ethylene glycol monobutyl ether in aviation industry wastewater using a porous Ti4O7/Ti electrode
Year: 2024
Type: article
Abstract: Titanium alloy chemical milling wastewater contains a significant amount of ethylene glycol monobutyl ether (EGBE), which is toxic and difficult to be degraded by microorganisms, therefore, the emission will lead to severe environmental pollution. To solve this problem, the electrocatalytic oxidation method was employed to remove EGBE in the wastewater, in which a porous Ti4O7/Ti electrode were prepared and employed as the anode, while stainless steel acted as the cathode. The effects of current density, interelectrode distance, and stirring mode on the COD removal rate were also investigated. Results show that the COD of the wastewater significantly decreases from 12410 to 15 mg·L-1 after 16 h degradation at 10 mA·cm-2 and electrode spacing of 1.0 cm as well as aeration stirring at 100 mL·min-1. Moreover, pilot-plant scale testing reveals that the COD decreasing from 11980 to 183 mg·L-1 after 24 h degradation. Consequently, the utilization of porous Ti4O7/Ti electrode as anode in the electrocatalytic oxidation method presents significant potential in removement of EGBE in aviation industry wastewater.
Authors: Yonglian Qiao, Lingxu Yang, Erwei Xie, Mengqi Luo, Le Wang, Chaoliu Zeng, Huijun Liu
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,430
Awards: G1507609605, G6868671287, G881941520
OpenAlex ID: W4403364283