%0 Journal Article
%T Degradation of Reactive Red X-3B by Ultra Sound Synergized with Zero-Valent Iron<br>超声波协同零价铁降解活性艳红X-3B
%A TANG Xin-hu
%A HUANG Li-sha
%A MO Ce-hui
%A LI Ming-yu
%A <br>汤心虎
%A 黄丽莎
%A 莫测辉
%A 李明玉
%J 环境科学
%D 2006
%I 
%X The synergistic effects of ultra sound and zero-valent iron were studied by measuring the degradation of X-3B in zero-valent reduction, ultra sound degradation and synergistic systems. The effects of pH, ultra sound power and irradiation time on the synergistic system were explored. The results show that the X-3B is degraded difficultly by ultra sound and the total removal rate is less than 7.75% after 25min ultrasonic irradiation. When pH is 5.0, 7.0 and 9.0, the degradation rate of X-3B in synergistic system is about 1.68, 1.76 and 1.67 times, respectively, than the total removal rate of zero-valent iron reduction plus ultrasound degradatiorr After 25min ultrasonic irradiation in synergistic system, 99.42% of X-3B is removed at pH7.0. However, the degradation rate of X-3B in zero-valent iron reduction system is much higher than that of synergistic system at pH3,0. The degradation mechanism of X-3B in zero-valent iron reduction system is different from that of synergistic system. The X-3B is degraded into intermediate pollutants in the former, but is degraded completely in the latter. Accordingly, the X-3B can be degraded effectively in the synergistic system of zero-valent iron and ultra sound, when pH is 5.0-7.0 and the power of ultra sound is 400-600W.
%K ultra sound
%K zero-valent iron
%K synergistic effect
%K reactive red X-3B<br>超声波
%K 零价铁
%K 协同效应
%K 活性艳红X-3B
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=F440C7FB102A04F2&yid=37904DC365DD7266&vid=DB817633AA4F79B9&iid=B31275AF3241DB2D&sid=D60A23E3DA48A028&eid=6BF76AE9E086F688&journal_id=0250-3301&journal_name=环境科学&referenced_num=4&reference_num=11