Title :
Studies on Treating the Printing and Dyeing Wastewater with the Ferrate Oxidization and Photochemical Process
Author :
Wang, Zong-ping ; Huang, Lizhi ; Su, Jiewen ; Xiang, Song ; Liu, Guanghong ; Wu, Feng
Author_Institution :
Sch. of Environ. Sci. & Eng., Huazhong Univ. of Sci. & Technol., Wuhan
Abstract :
This experimental study was conducted to investigate the COD and color removal efficiency in printing and dyeing wastewater by ferrate and by UV irradiation combined with the ferrate pre-oxidization. The experiment results showed that 77.5% COD and 76.6% color removal efficiency could be attained at pH 5 with 77.0 mgldrL-1 ferrate (in terms of Fe(VI) ions). After the oxidation by 77.0 mgldrL-1 ferrate at pH 3, the COD and color removal efficiency was 69% and 87.5%, respectively. However, the irradiation had no obvious effect on COD and color removal efficiency after ferrate pre-oxidation.
Keywords :
chemical technology; dyeing; industrial waste; iron compounds; oxidation; pH; photochemistry; printing industry; textile industry; ultraviolet radiation effects; wastewater treatment; COD removal efficiency; FeO4; UV irradiation; color removal efficiency; dyeing wastewater treatment; ferrate oxidization; ferrate pre-oxidation; pH; photochemical process; printing wastewater treatment; Chemicals; Color; Degradation; Iron; Oxidation; Photochemistry; Pollution; Printing; Textile industry; 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.2008.1136
