| 膨润土负载壳聚糖处理含镉废水的实验研究 |
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| 引用本文： | 王春平,董丽丽. 膨润土负载壳聚糖处理含镉废水的实验研究[J]. 宁夏大学学报(自然科学版), 2014, 0(3): 246-248 |
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| 作者姓名： | 王春平 董丽丽 |
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| 作者单位： | 邢台学院 化学工程与生物技术学院,河北 邢台,054001 |
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| 基金项目： | 邢台市科技局科技支撑基金资助项目，河北省自然科学基金资助项目 |
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| 摘 要： | 以脱乙酰度为90%壳聚糖为原料,制备膨润土负载壳聚糖复合吸附剂,用于吸附含镉废水溶液中的Cd2+.探讨壳聚糖负载量、pH值、吸附时间、吸附剂加入量、Cd2+初始质量浓度对去除率的影响.结果表明,对于初始质量浓度为10mg/L的含镉模拟废水溶液,在膨润土与壳聚糖质量比为1∶0.03,加入量为8g/L,pH=6,吸附时间为50min的条件下,Cd2+的去除率在94%以上.该吸附剂经再生处理后可循环使用4次.
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| 关 键 词： | 壳聚糖 膨润土 吸附 镉离子 |
Experimental Study on Dispose of Cadmium Wastewater with Chitosan Loaded Bentonite |
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| Wang Chunping,Dong Lili. Experimental Study on Dispose of Cadmium Wastewater with Chitosan Loaded Bentonite[J]. Journal of Ningxia University(Natural Science Edition), 2014, 0(3): 246-248 |
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| Authors: | Wang Chunping Dong Lili |
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| Affiliation: | (School of Chemical Engineering and Biotechnology, Xingtai University, Xingtai 054001, China) |
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| Abstract: | The composite adsorbent of chitosan loaded bentonite was made with the raw material of 90%deacetylation degree chitosan to adsorb Cd2＋in the solution of cadmium wastewater.This paper discussed the impact of chitosan capacity,PH value,adsorption time,additive amount of adsorbent,and Cd2＋ initial mass concentration on removal rate.The result shows that when the initial mass concentration of model cadmium wastewater is 10 mg/L,the removal rate of Cd2＋ will be over 94% under the condition that the mass ratio of bentonite and chitosan reaches 1∶0.03,the additive amount is 8 g/L,pH is 6,and the absorption time is 50 min.After regeneration treatment,the adsorbent can be recycled for 4 times. |
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| Keywords: | Chitosan Bentonite adsorption Cadmium ions |
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