%0 Journal Article
%T Study on the Mechanism of Ozonation of Organic Combination with UV Radiation<br>O3/UV降解水中有机物机理研究
%A TONG Shao-ping
%A WANG Zi
%A MA Chun-an
%A <br>童少平
%A 王梓
%A 马淳安
%J 环境科学
%D 2007
%I 
%X Nitrobenzene, glycolic acid and acetic acid were selected to be degraded by O3/UV. During the degradation of nitrobenzene by O3/UV, addition of MnO2, an effective catalyst to decompose H2O2 in water, decreased the degradation efficiency obviously, and the degradation efficiency of O3/UV was even lower than that of ozonation alone, for example, the TOC removal rates of nitrobenzene by O3/UV, O3 and O3/UV+MnO2 were 44%, 41% and 39% in 40 minutes, respectively. These results demonstrate that intermediate H2O2 plays an important role in enhancement of degradation efficiency of O3/UV. Furthermore, the characteristic of organic, which acts as promoter or inhibitor in the process of ozonation, also affects the degradation efficiency of O3/UV directly, when glycolic acid, a promoter in ozonation, was degraded, the combination UV radiation with ozonation could remove it efficiency, the removal rate of glycolic acid reached 76% in 30 minutes; however, when acetic acid, an inhibitor in ozonation, was degraded by O3/UV, the removal rate of acetic acid was very low, which was similar with that of ozonation alone.
%K ozone
%K UV
%K nitrobenzene
%K glycolic acid
%K acetic acid
%K degradation<br>臭氧
%K 紫外
%K 硝基苯
%K 乙酸
%K 乙醇酸
%K 降解
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=ADD80C15C0ACD30B7D41821513B35726&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=0B39A22176CE99FB&sid=556C1A86E372B606&eid=3622B70F9C54A9CC&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=14