工业水处理 ›› 2018, Vol. 38 ›› Issue (2): 35-39. doi: 10.11894/1005-829x.2018.38(2).035

• 试验研究 • 上一篇    下一篇

复合改性膨润土对亚甲基蓝的吸附性能研究

孟波1, 郭巧霞1, 王凯2, 靳海燕2, 林辉1, 任申勇3, 申宝剑3   

  1. 1. 中国石油大学(北京)理学院, 北京 102249;
    2. 中国石油天然气股份有限公司大港石化分公司, 天津 300280;
    3. 中国石油大学(北京)重质油国家重点实验室, 北京 102249
  • 收稿日期:2017-11-13 出版日期:2018-02-20 发布日期:2018-03-03
  • 通讯作者: 郭巧霞,E-mail:qxguo@cup.edu.cn。 E-mail:qxguo@cup.edu.cn
  • 作者简介:孟波(1993-),硕士。E-mail:13391530721@163.com。

Research on the adsorption capability of compound modified bentonite for methylene blue

Meng Bo1, Guo Qiaoxia1, Wang Kai2, Jin Haiyan2, Lin Hui1, Ren Shenyong3, Shen Baojian3   

  1. 1. College of Science, China University of Petroleum(Beijing), Beijing 102249, China;
    2. Dagang Petrochemical Branch Co., China National Petroleum Corp., Tianjin 300280, China;
    3. National Key Laboratory of Heavy Oil Processing, China University of Petroleum(Beijing), Beijing 102249, China
  • Received:2017-11-13 Online:2018-02-20 Published:2018-03-03

摘要: 采用盐酸、四甲基氯化铵和聚合羟基铝对膨润土进行复合改性,研究了复合改性膨润土对亚甲基蓝的吸附性能,并对影响吸附效果的因素进行了考察。结果表明:该复合改性膨润土对亚甲基蓝具有良好的吸附性能。其应用pH范围广,有着较强的酸碱环境适用性;吸附剂投加量、溶液盐度等对吸附效果均有一定的影响。该吸附过程符合准二级动力学模型,Langmuir等温吸附模型可以较好地描述复合改性膨润土对亚甲蓝的吸附过程,吸附量为178.89 mg/g。

关键词: 复合改性膨润土, 吸附, 亚甲基蓝

Abstract: Hydrochloric acid, tetramethylammonium chloride and polyhydroxyl aluminum have been used for the compound modification of bentonite,the adsorption capability of the compound modified bentonite for methylene blue researched,and the factors influencing adsorption effect investigated. The results show that the compound modified bentonite has good adsorption capability for methylene blue. It is characterized by wide pH application range,and wide suitability in acidic and basic environments. The dosage of absorbent,salinity of solution,etc. all have certain influences on adsorption effects. The adsorption process complies with pseudo-second-order kinetics model,and Langmuir isothermal adsorption model,which can describe the adsorption process of compound modified bontonite for methylene blue well. Its adsorption capacity is 178.89 mg/g.

Key words: compound modified bentonite, adsorption, methylene blue

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