%0 Journal Article
%T Effects of UV/Ag-TiO2/O3 advanced oxidation on unicellular green alga Dunaliella salina: Implications for removal of invasive species from ballast water<br>
%A Donghai Wu
%A Hong You
%A Jiaxuan Du
%A Chuan Chen
%A Darui Jin
%A <br>
%J 环境科学学报(英文版)
%D 2011
%I 
%X The UV/Ag-TiO2/O3 process was investigated for ballast water treatment using Dunaliella salina as an indicator. Inactivation curves were obtained, and the toxicity of e uent was determined. Compared with individual unit processes using ozone or UV/Ag-TiO2, the inactivation e ciency of D. salina by the combined UV/Ag-TiO2/O3 process was enhanced. The presence of ozone caused an immediate decrease in chlorophyll a (chl-a) concentration. Inactivation e ciency and chl-a removal e ciency were positively correlated with ozone dose and ultraviolet intensity. The initial total residual oxidant (TRO) concentration of e uent increased with increasing ozone dose, and persistence of TRO resulted in an extended period of toxicity. The results suggest that UV/Ag-TiO2/O3 has potential for ballast water treatment.
%K ballast water
%K UV/Ag-TiO2/O3 process
%K Dunaliella salina
%K inactivation
%K total residual oxidant<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=82AF0D35D99D334CD01E16DA3245290C&yid=9377ED8094509821&vid=EA389574707BDED3&iid=38B194292C032A66&sid=F9A6B6F259CE5121&eid=89389F643CA3F778&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=0&reference_num=32