简报
郭堃梅,马毅杰,韩和平.膨润土对Pb2+的吸附性能及影响吸附的主要因素[J].环境科学学报,2000,20(5):654-656
膨润土对Pb2+的吸附性能及影响吸附的主要因素
- Adsorption of Pb2+ on Bentonite and major ffecting factors
- 基金项目：国家自然科学基金项目(批准号:49471042)资助
- 作者
- 单位
- 郭堃梅
- 山西省农科院旱地农业研究中心, 太原 030031
- 马毅杰
- 中科院南京土壤研究所, 南京 210008
- 韩和平
- 山西省榆次市农牧局, 榆次 030006
- 摘要：探讨了天然膨润土对Pb2+的吸附性能及其主要影响因素.天然膨润土对Pb2+的吸附能力很强, 当Pb2+的浓度小于20mg/L时, 去除率可达99%以上.吸附受溶液pH、吸附剂用量以及振荡时间的影响, 但溶液中存在的有机污染物不影响膨润土对Pb2+的吸附.
- Abstract：Adsorption of Pb2+ on Bentonite and major affecting factors were studied.The results showed that when the concentration of Pb2+ was less than 50mg/L, the natural Bentonite adsorbed Pb2+ effectively with the moving rate more than 99%. pH-value amount of adsorbent, time of reaction and intensity of ion effected the adsorption, but p-nitrophenol in solution did not affect the adsorption.
- Key words：Bentonite adsorb Pb2+ p-nitrophenol
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