东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2005, Vol. 26 ›› Issue (4): 299-302.DOI: -

• 论著 • 上一篇    下一篇

改性粉煤灰处理阴离子表面活性剂废水

于晓彩;王恩德;徐微;辛哲   

  1. 东北大学资源与土木工程学院;东北大学资源与土木工程学院;沈阳化工学院应用化学学院;沈阳化工学院应用化学学院 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2005-04-15 发布日期:2013-06-24
  • 通讯作者: Yu, X.-C.
  • 作者简介:-
  • 基金资助:
    辽宁省教育厅基金资助项目(200293080)·

Environmental treatment of anionic surfactants LAS wastewater by modified fly ash

Yu, Xiao-Cai (1); Wang, En-De (1); Xu, Wei (2); Xin, Zhe (2)   

  1. (1) Sch. of Resources and Civil Eng., Northeastern Univ., Shenyang 110004, China; (2) Sch. of Applying Chem., Shenyang Inst. of Chem. Technol., Shenyang 110142, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2005-04-15 Published:2013-06-24
  • Contact: Yu, X.-C.
  • About author:-
  • Supported by:
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摘要： 利用改性粉煤灰的吸附混凝作用,研究了从含阴离子表面活性剂LAS的模拟废水中去除LAS的一般规律·结果表明,以CaO为改性剂的粉煤灰对LAS废水具有良好的吸附性能,其吸附性能在实验浓度范围内符合Langmuir吸附规律·在含LAS为20～120mg/L的模拟废水中,改性粉煤灰的最佳用量为20～25g每200mL废水,吸附时间为40min,粉煤灰粒径为74～83μm,pH为9～13的实验条件下,LAS的去除率最高可达98%以上·

关键词: 粉煤灰, 改性, 含LAS废水, 吸附作用, 混凝作用

Abstract: Utilizing the adsorption/coagulation effect of modified fly ash to treat the wastewater containing the anionic surfactant LAS was investigated. The results showed that fly ash modified by the modifier CaO was effective to adsorb the environmental harmful substance LAS when LAS concentration is 20-120 mg/L in the wastewater of which the pH value is 9-13 and the amount of modified fly ash with particle size 74-83 μm is 20-25 g per 200 ml wastewater. The fact conforms to Langmuir theory of adsorption. The LAS removal rate can be up to over 98% on the conditions mentioned above.

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