累托石/壳聚糖吸附剂的制备及对锌的吸附

金属矿山 ›› 2009, Vol. 39 ›› Issue (04): 143-145+153.

累托石/壳聚糖吸附剂的制备及对锌的吸附

李爱阳¹，李大森²，李安伍¹

1.湖南工学院；2.长沙远大住宅工业有限公司

出版日期:2009-04-15 发布日期:2011-11-22
基金资助:
* 湖南省自然科学基金项目（编号：08JJ3015），湖南省教育厅科研计划项目（编号：07C030），衡阳市工业科研开发计划项目（编号：06KG59）。

Preparation of Rectorite-Chitosan Sorbent and Its Absorption for Zinc

Li Aiyang¹，Li Dasen²，Li Anwu¹

1.Hunan Institute of Technology；2.Changsha Broad Homes Industrial Corporation

Online:2009-04-15 Published:2011-11-22

摘要/Abstract

摘要： 按浸渍法制备了累托石/壳聚糖复合吸附剂，用复合吸附剂对含Zn²⁺溶液进行了吸附试验，在试验基础上对实际电镀含锌废水进行了处理。结果表明：当壳聚糖与累托石的质量比为0.04，壳聚糖脱乙酰度为90%时，制成的复合吸附剂吸附效率较高。当水中Zn²⁺浓度低于100 mg/L时，在pH值为7，复合吸附剂用量为3.0g/L，吸附时间为40 min条件下，复合吸附剂对Zn²⁺的吸附率达99%以上，处理后的水符合国家污水综合排放一级标准。

关键词: 累托石, 壳聚糖, 复合吸附剂, Zn²⁺

Abstract: Rectorite-chitosan composite sorbent was prepared by impregnation method, which was used in the adsorption test for Zn²⁺ containing solution.Based on the test, it was used to treat the practical electroplating waste water containing zinc.The result shows that the composite sorbent has a high adsorption rate when the mass ratio of chitosan to rectorite was 0.04 and the deacetylation degree of chitosan was 90%.At a Zn²⁺concentration of the solution of lower than 100 mg/L, a pH value of 7, a composite sorbent dosage of 3.0 g/L and an adsorption time of 40 min, the composite sorbent can have a Zn²⁺ adsorption rate of higher than 99%，with the treated water conforming to the requirements in the state standard for Class A sewage discharge.

Key words: Rectorite, Chitosan, Composite sorbent, Zn²⁺

李爱阳, 李大森, 李安伍. 累托石/壳聚糖吸附剂的制备及对锌的吸附[J]. 金属矿山, 2009, 39(04): 143-145+153.

LI Ai-Yang, LI Da-Sen, LI An-Wu. Preparation of Rectorite-Chitosan Sorbent and Its Absorption for Zinc[J]. Metal Mine, 2009, 39(04): 143-145+153.

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