活性炭吸附去除水中鄰苯二甲酸二丁酯的動力學研究

劉輝, 方戰強, 陳曉蕾, 曾寶強

Research output: Contribution to journalArticle

Abstract

對四種顆粒狀活性炭吸附典型內分泌干擾物DBP的動力學進行了研究。結果表明四種活性炭對DBP的吸附符合一級動力學過程,吸附速率常數:果殼>椰殼>煤質1.0>煤質1.5。同時,研究了實驗參數pH值對活性炭吸附DBP的影響,在實驗條件下最佳pH值為5.0。通過對四種活性炭吸附前後的紅外吸收譜圖、掃描電鏡SEM分析可知,四種活性炭對DBP的吸附主要以物理吸附為主,吸附速率與活性炭比表面積和孔徑結構有关。 The adsorptive kinetics for typical endocrine disruptor di-n-butyl phthalate (DBP) by four different granulated activated carbons was presented. Results showed that adsorption of DBP by four carbons followed first-order kinetics, the adsorption constant of the carbons was found to follow the order: nut shell> coconut shell> coaly carbon1.0>coaly carbon1.5. Batch adsorption studies were also conducted to investigate the effect of pH on the adsorption process, the optimum pH for the removal of di-n-butyl phthalate from aqueous solutions under the experimental conditions was found to be 5.0. Furthermore, results from IR and SEM studies showed that physical adsorption plays an important role in adsorption process, the adsorption constant is related to the specific area and pore sizes. Copyright © 2008 上海市淨水技術學會;上海城市水資源開發利用國家工程中心有限公司.
Original languageChinese
Pages (from-to)23-26
Journal淨水技術
Volume2008
Issue number2
Publication statusPublished - 2008

Citation

劉輝、方戰強、陳曉蕾和曾寶強(2008):活性炭吸附去除水中鄰苯二甲酸二丁酯的動力學研究,《淨水技術》,2008(2),頁23-26。

Keywords

  • 活性炭
  • 吸附動力學
  • 掃描電鏡(SEM)
  • 孔徑
  • 紅外光譜
  • Activated carbon
  • Adsorptive kinetics
  • Scanning electron microscopy (SEM)
  • Pore size
  • Infrared spectroscopy
  • Alt. title: Kinetics of adsorption for Di-n-butyl Phthalate(DBP) by four different granule activated carbons