Title :
Pre-Treatment of Organic-High Refractory Dyestuff Wastewater with Electrolysis Processes
Author :
Qi, Peishi ; Chen, Zhanli ; Zhang, Huanxin ; Liu, Yunzhi
Author_Institution :
Sch. of Municipal & Environ. Eng., Harbin Inst. of Technol., Harbin
Abstract :
Three kinds of electrochemical methods, electro-flocculation, indirect electro-oxidation and electro-Fenton were examined as pre-treatment processes for fresh dyestuff wastewater with high salinity and non-biodegradable organic concentration. The efficiency of each technique was evaluated according to the reduction levels of COD and toxicity, as well as biodegradability improvement. The results indicate electro-Fenton process as the most efficient pre-treatment for reducing toxicity, improving biodegradability and removing organic pollutants from dyestuff wastewater.
Keywords :
biodegradable materials; chemical industry; dyes; effluents; electrolysis; environmental degradation; flocculation; industrial pollution; oxidation; toxicology; wastewater treatment; water pollution; COD; biodegradable organic concentration; electro-Fenton method; electro-flocculation method; electrochemical method; electrolysis processes; indirect electrooxidation method; organic pollutants; organic-high refractory dyestuff wastewater; toxicity reduction; wastewater pretreatment processes; Anodes; Biodegradation; Biological materials; Chemical technology; Effluents; Electrochemical processes; Pollution; Solids; Voltage; Wastewater treatment;
Conference_Titel :
Bioinformatics and Biomedical Engineering, 2008. ICBBE 2008. The 2nd International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1747-6
Electronic_ISBN :
978-1-4244-1748-3
DOI :
10.1109/ICBBE.2008.427
