%0 Journal Article
%T Research in high frequency ultrasonic for degradation of azo dye wastewater containing MX-5B<br>高频超声降解偶氮染料活性红MX-5B废水的研究
%A Xie Wei-Ping
%A Qin Yan
%A Zou Yuan
%A He De-Wen
%A Song Dan
%A <br>Xie WP
%A Qin Y
%A Zou Y
%A He DW
%A Song D
%J 环境科学
%D 2010
%I 
%X The degradation of azo dye wastewater, containing MX-5B, was investigated by using high frequency ultrasonic irradiation. The effect of different factors like the initial pH of solution, sonolysis parameters, air-blowing, Fe2+ concentration were studied, the synergistic action of complex frequency and the mechanism of degradation was explored primarily. The results show that MX-5B in aqueous solution can be degraded efficiently by ultrasonic irradiation, when the pH 3.5, ultrasonic frequency 418.3kHz, ultrasonic power 69 W, color removal rate up to 100% in 180 min. Adding of Fe2+ and blowing air had some effects. The results also indicated that radical-oxidation controlled the ultrasonic decompose of MX-5B and MX-5B ultrasonic removal was observed to behave as pseudo-first-order kinetics under different experimental conditions tested in the present work. Comparison of UV-Vis absorption spectrums before and after treatment showed that all of the conjugate structure and part of aromatic structure were destroyed after being ultrasonic irradiation.
%K high frequency
%K ultrasonic
%K azo dye
%K degradation
%K wastewater<br>高频
%K 超声
%K 偶氮染料
%K 降解
%K 废水
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=C177D21ED46D30AFBE4FAD7FE08F0F77&yid=140ECF96957D60B2&vid=4AD960B5AD2D111A&iid=9CF7A0430CBB2DFD&sid=7C96F677D586AB70&eid=9329D00191B11ACC&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=0