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改性膨润土作为防渗层材料的性能研究及影响因素分析

陈延君 王红旗 赵勇胜

陈延君, 王红旗, 赵勇胜. 改性膨润土作为防渗层材料的性能研究及影响因素分析[J]. 环境科学研究, 2006, 19(2): 90-94.
引用本文: 陈延君, 王红旗, 赵勇胜. 改性膨润土作为防渗层材料的性能研究及影响因素分析[J]. 环境科学研究, 2006, 19(2): 90-94.
CHEN Yan-jun, WANG Hong-qi, ZHAO Yong-sheng. Study on Modified Bentonite Performance and the Analysis of Its Influencing Factors[J]. Research of Environmental Sciences, 2006, 19(2): 90-94.
Citation: CHEN Yan-jun, WANG Hong-qi, ZHAO Yong-sheng. Study on Modified Bentonite Performance and the Analysis of Its Influencing Factors[J]. Research of Environmental Sciences, 2006, 19(2): 90-94.

改性膨润土作为防渗层材料的性能研究及影响因素分析

基金项目: 吉林省杰出青年基金资助项目(121723);吉林大学创新基金资助项目(403010123016)

Study on Modified Bentonite Performance and the Analysis of Its Influencing Factors

  • 摘要: 以十六烷基三甲基溴化铵(HDTMA)为改性剂,对天然膨润土进行了有机改性.研究了改性后的有机膨润土防渗层去除污染物和控制渗滤液渗透的有效性及可行性,以及有机膨润土的吸附规律和影响因素.结果表明:改性后有机膨润土的吸附能力和容量均得到了提高,渗透系数在一定时间后可达到1×10-7cm/s以下,对苯酚有极强的衰减能力,对Fe3+的去除率也达到了98%.有机膨润土可显著延缓苯酚穿透防渗材料的速度,与未改性的天然膨润土相比,苯酚穿透防渗材料的时间推迟了近25倍,因此,改性后的有机膨润土可作为防渗材料.pH,改性剂的浓度和吸附时间等对防渗层污染物的去除有重要影响.

     

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出版历程
  • 收稿日期:  2005-05-12
  • 刊出日期:  2006-04-25

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