%0 Journal Article
%T Study on Removal Effect of Different Organic Fractions from Bio-treated Effluent of Dye Wastewater by UV/H2 O2 Process<br>UV/H2O2法对印染废水生化出水中不同种类有机物的去除效果
%A LI Xin
%A LIU Yong-di
%A SUN Xian-bo
%A XU Hong-yong
%A QIAN Fei-yue
%A LI Xin-jue
%A LI Mu
%A <br>李新
%A 刘勇弟
%A 孙贤波
%A 徐宏勇
%A 钱飞跃
%A 李欣珏
%A 李暮
%J 环境科学
%D 2012
%I 
%X The pretreatment of bio-treated effluent of dye wastewater by UV/H2O2 process was studied.The influencing factors,such as H2O2 dosage,reaction time and pH values were evaluated for the removal efficiency of UV254,ADMI7.6,DOC and DOC of dye wastewater by UV/H2O2 process.The experimental results showed that,the optimal conditions determined were as follows: initial pH 7.4-8.1,H2O2 dosage 4.5 mmol·L-1 and UV irradiation time of 50 min.Under the optimal conditions,UV254,ADMI7.6,DOC and COD removal rate could reach 77%,94%、 40% and 69%.Removal effects of four different DOM fractions,hydrophobic acids,non-acid hydrophobics,tasnsphilics and hydrophilics separated by XAD-8 and XAD-4 resins.The experimental results show that:hydrophobic material was the main substance causing color,when it was characterized by ADMI7.6,the proportion could reach 92%,of which 53% was non-acid hydrophobics.It indicated that removal efficiencies of tasnsphilics,hydrophobic acids and non-acid hydrophobics were high through UV/H2O2 process,while hydrophilics’ efficiencies were lower.The experimental results showed that organic molecules with molecular weight over 10 000 contributed greatly to UV254,ADMI7.6 and DOC removal rate.
%K bio-treated effluent of dye wastewater
%K UV/H2 O2 process
%K resin separation
%K molecular weight distribution<br>印染废水生化出水
%K UV/H2O2高级氧化法
%K 树脂分离
%K 相对分子质量分布
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=669A8D56CCC2B6A157B83143E2CABFBD&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=5D311CA918CA9A03&sid=4632F66201B6AB53&eid=3C2B0085DDCE7118&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=19