%0 Journal Article
%T Studies on the Degradation of Paracetamol in Sono-electrochemical Oxidation<br>声电氧化处理扑热息痛的研究
%A DAI Qi-zhou
%A MA Wen-jiao
%A SHEN Hong
%A CHEN Jun
%A CHEN Jian-meng
%A <br>戴启洲
%A 马文姣
%A 沈宏
%A 陈浚
%A 陈建孟
%J 环境科学
%D 2012
%I 
%X A novel lead dioxide electrodes co-doped with rare earth and polytetrafluoroethylene (PTFE) were prepared by the electrode position method and applied as anodes in sono-electrochemical oxidation for pharmaceutical wastewater degradation. The results showed that the APAP removal and the mineralization efficiency reached an obvious increase, which meant that the catalytic efficiency showed a significant improvement in the use of rare-earth doped electrode. The effects of process factors showed that the condition of the electrode had the best degradation efficiency with doped with Ce2O3under electrolyte concentration of 14.2 g·L-1, 49.58 W·cm-2, 50 Hz, pH=3, 71.43 mA·cm-2. The APAP of 500 mg·L-1 removal rate reached 92.20% and its COD and TOC values declined to 79.95% and 58.04%, the current efficiency reached 45.83% after degradation process for 2.0 h. The intermediates were monitored by the methods of GC-MS, HPLC, and IC. The main intermediates of APAP were p-benzoquinone, benzoic acid, acetic acid, maleic acid, oxalic acid, formic acid etc, and the final products were carbon dioxide and water. The goal of completely degradation of pollutant was achieved and a possible degradation way was proposed.
%K lead dioxide electrode
%K rare earth
%K sono-electrochemical oxidation
%K pharmaceutical wastewater
%K degradation mechanism<br>二氧化铅电极
%K 稀土
%K 声电氧化
%K 制药废水
%K 降解机制
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=470342632029DB6A07A891713DF96A29&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=DF92D298D3FF1E6E&sid=469954E24DF51E19&eid=A2AE002259CD0552&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=25