Title :
Pretreatment of Wastewater Contained DMF by Combined Aerobic Fe-C Micro-Electrolysis and Plural Three-Dimensional Electrodes Oxidation Process
Author :
Han, Dan ; Zhao, Youcai ; Hong, Feiyu
Author_Institution :
State of Key Lab. of Pollution Control & Resource Reuse, Tongji Univ., Shanghai, China
Abstract :
Membrane-making wastewater contains DMF, with high COD, toxicity and non-biodegradability. In this work, aerobic Fe-C micro-electrolysis and three-dimensional electrodes technology were applied for the pretreatment aiming to improve the biodegradability of the wastewater. It was found that the optional pretreatment conditions were pH 3 for Fe-C micro-electrolysis and pH 5 for the three-dimensional electrodes oxidation. As a result, the B/C increased to 0.38 from below 0.2, and the COD removal reached 99% by the combined process of pretreatment and biological contact reactor in a three-month test, and the effluent DMF concentration was below 10 mg/L.
Keywords :
bioreactors; carbon; electrodes; electrolysis; environmental degradation; iron; oxidation; pH; wastewater; wastewater treatment; water quality; COD; DMF; Fe-C; aerobic Fe-C micro-electrolysis; biodegradability; oxidation; three-dimensional electrodes; toxicity; wastewater pretreatment; Biomembranes; Chemical industry; Effluents; Electric motors; Electrodes; Inductors; Manufacturing industries; Oxidation; Voltage; Wastewater treatment;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5163241
