工业水处理 ›› 2008, Vol. 28 ›› Issue (6): 16-20. doi: 10.11894/1005-829x.2008.28(6).16

• 试验研究 • 上一篇    下一篇

SnO2-TiO2/UV/O3催化降解糖蜜酒精废水

曾玉凤1,2, 刘自力1,3, 秦祖赠1   

  1. 1. 广西大学化学化工学院, 广西南宁 530004;
    2. 玉林师范学院, 广西玉林 537000;
    3. 广州大学化学化工学院, 广东广州 510006
  • 收稿日期:2008-01-20 出版日期:2008-06-20 发布日期:2010-10-01
  • 作者简介:曾玉凤(1968- ),1990年毕业于湖南大学,高级工程师,在读博士。电话:13286825142,E-mail:ylzyf@tom.com.
  • 基金资助:

    国家自然科学基金资助课题(20466001);广西大学重点科技项目(2004ZD01);广州市教育局科研项目(62040)

SnO2-TiO2/UV/O3 catalytic degradation of molasses fermentation wastewater

Zeng Yufeng1,2, Liu Zili11,3, Qin Zuzeng1   

  1. 1. School of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, China;
    2. Yulin Normal University, Yulin, 537000, China;
    3. College of Chemistry & Chemical Engineering, Guangzhou University, Guangzhou 510006, China
  • Received:2008-01-20 Online:2008-06-20 Published:2010-10-01

摘要:

用沉积—沉淀法制备了SnO2-TiO2光催化剂,利用XRD、UV-Vis等技术对其结构进行了表征。以糖蜜酒精废水为处理对象,采用自制的SnO2-TiO2作为光催化剂,研究了在紫外光条件下,稀释比、催化剂投加量、臭氧投加量和pH等因素对光催化臭氧降解反应的影响。结果表明:在紫外光照射、催化剂用量0.25g/L、通气流量30L/h的条件下,稀释20倍的糖蜜酒精废水经120min的处理,其脱色率达到98.57%;此外,还对催化降解糖蜜酒精废水的机理进行了探讨。

关键词: SnO2-TiO2, O3, 光催化, 糖蜜酒精废水

Abstract:

SnO2-TiO2 photocatalyst has been prepared bydeposition-precipitation method.The structure of catalysts is characterized by XRD, UV-Vis.The decolorization-degradation of molasses fermentation wastewater is regarded as a model reaction to study the effects of dilution ration, addition amounts of SnO2-TiO2, O3 flowand pH on photo- catalytic ozonation decolorization reaction under UV.The results show that: under UV irradiation, the additive amount of SnO2-TiO2 of 0.25 g/L, O3 flowof 30 L/h and a 20 times of dilution of molasses alcohol wastewater treated 120 min, the decolorization rate is 98.57%.In addition, the mechanism of catalytic degradation of molasses fermen- tation wastewater is discussed.

Key words: tin dioxide-titaniumdioxide, ozone, photocatalysis, molasses fermentation wastewater

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