工业水处理 ›› 2012, Vol. 32 ›› Issue (6): 56-59. doi: 10.11894/1005-829x.2012.32(6).56

• 试验研究 • 上一篇    下一篇

柚皮活性炭对氨氮吸附性能研究

张华1,2, 张学洪1,2, 白少元2, 梁美娜2, 苑守瑞2, 朱义年2   

  1. 1. 广西大学轻工与食品工程学院, 广西南宁 530004;
    2. 桂林理工大学环境科学与工程学院, 广西桂林 541004
  • 收稿日期:2012-04-24 出版日期:2012-06-20 发布日期:2012-06-20
  • 作者简介:张华(1974-),博士,副教授.电话:13978342330,E-mail:zhanghua@glite.edu.cn
  • 基金资助:

    广西科学基金项目(2011GXNSFF018003,2011GXNSFA018013);广西科学研究与技术开发计划项目(10124002-2)

Research on the adsorptive removal of NH3-N from wastewater by the activated carbon prepared from grapefruit peel

Zhang Hua1,2, Zhang Xuehong1,2, Bai Shaoyuan2, Liang Meina2, Yuan Shourui2, Zhu Yinian2   

  1. 1. Institute of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China;
    2. College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
  • Received:2012-04-24 Online:2012-06-20 Published:2012-06-20

摘要:

采用氯化锌活化法制备柚皮活性炭,探讨其对废水中氨氮的吸附性能。结果表明,在pH为2~12,温度为30~50℃条件下,柚皮活性炭对氨氮均能取得较好的吸附效果;相同氨氮初始浓度条件下,随着投加量增加,单位质量柚皮活性炭对氨氮的吸附量明显减少;初始氨氮浓度越大,氨氮吸附量也越大。吸附数值遵循Henry及Freundlich等温吸附模型,吸附过程符合准二级动力学方程。

关键词: 柚皮, 活性炭, 氨氮, 吸附

Abstract:

The activated carbon adsorbent has been prepared from grapefruit peel by activation with zinc chloride.The adsorbing effect of activated carbon on ammonia nitrogen is discussed.When the pH is from 2-12 and temperature from 30-50 ℃,better adsorbing effectiveness of grapefruit-peel activated carbon on ammonia nitrogen can be obtained.Under the same initial concentration conditions,and with the increase of the dosage,the adsorbing effect on ammonia nitrogen is greatly decreased.The higher the initial concentration is,the higher the adsorbing capacity on ammonia nitrogen is.The adsorbing data comply with Henry and Freundlich isotherm adsorption models etc.,and the adsorbing process.

Key words: grapefruit peel, activated carbon, ammonia nitrogen, adsorption

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