甘蔗渣;亚甲基蓝;吸附;等温线," /> 甘蔗渣;亚甲基蓝;吸附;等温线,"/> 甘蔗渣对亚甲基蓝的吸附性能实验研究

广东工业大学学报 ›› 2013, Vol. 30 ›› Issue (2): 123-128.doi: 10.3969/j.issn.1007-7162.2013.02.024

• 综合研究 • 上一篇    

甘蔗渣对亚甲基蓝的吸附性能实验研究

刘敬勇,黄桂虹,邓俊强,刘凯,谢永彬   

  1. 广东工业大学 环境科学与工程学院,广东 广州  510006
  • 收稿日期:2012-04-12 出版日期:2013-06-27 发布日期:2013-06-27
  • 作者简介:刘敬勇(1979-),男,副教授,博士,主要研究方向为环境污染控制.
  • 基金资助:

    广东省科技计划项目(2012B050300023);广东工业大学大学生课外立项资助项目(201125107)

Study on the Bio-absorption Characteristic of Methylene Blue by Bagasse

Liu Jing-yong, Huang Gui-hong,  Deng Jun-qiang, Liu Kai, Xie Yong-bin   

  1. School of Environmental Science and Engineering,Guangdong University of Technology,Guangzhou 510006, China
  • Received:2012-04-12 Online:2013-06-27 Published:2013-06-27

摘要: 为研究甘蔗渣在处理印染废水脱色中的实际效果,以亚甲基蓝模拟废水为研究对象,考察了甘蔗渣在不同的实验条件下如吸附剂投加量、pH、振荡时间、初始质量浓度、温度等,对亚甲基蓝的吸附效果和规律.结果显示:在温度为30 ℃,pH为6~7,震荡时间为15 min的条件下,3 g甘蔗渣可使100 mL质量浓度为100 mg/L的亚甲基蓝的去除率达95%以上,30 ℃下甘蔗渣理论饱和吸附量为12.71 mg/g.甘蔗渣对亚甲基蓝的吸附过程可以用Langmuir、Freundlich、Temkin 等温吸附方程和二级吸附速率方程进行很好的描述,主要表现为物理吸附.

关键词: 甘蔗渣;亚甲基蓝;吸附;等温线')">

甘蔗渣;亚甲基蓝;吸附;等温线

Abstract: In order to explore the effects of bagasse on the absorption of dye waste water, simulated wastewater of methylene blue used as the main pollution composition, it investigated the absorption effects of the bagasse on the methylene blue in aqueous solution under different conditions, such as different bagasse dosage, pH, shaking time, initial concentration of methylene blue and temperature.The results indicate that the absorption rate of methylene blue is up to 95% in solution with initial methylene blue concentration of 100 mg/L, bagasse dosage of 3 g/100 mL, pH of 6~7, shaking time of 15 minutes and temperature of 30 ℃. The theoretical saturated absorption amount of bagasse is 12.71 mg/g at 30 ℃. Langmuir, Freundlich, Temkin models and secondary absorption rate equation can be used to suitably describe the absorption process of bagasse to methylene blue in aqueous solution, and the main absorption pattern is physical absorption.

Key words: bagasse; methylene blue; absorption; isotherm

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