摘要
[目的]研究壳聚糖及Fe3O4磁改性壳聚糖对Pb2+的吸附性能的影响。[方法]通过未改性壳聚糖用量、吸附时间及磁改性壳聚糖吸附pH、温度等不同因素对壳聚糖去除废水中Pb2+的效果进行研究。[结果]吸附时间为80 min,pH值为4.5,温度为298 K时,废水中Pb2+去除率可达99.5%。[结论]改性壳聚糖磁性微粒对Pb2+的吸附能力有很大增加,提高了去除率,为减少污水中铅对环境的污染提供参考。
[Objective] To study the effect of chitosan and Fe3O4 magnetic modified chitosan on the adsorptive performance of Pb2＋.[Method] The impact of non-modified chitosan dose and adsorption time as well as the adsorptive pH and temperature of magnetic modified chitosan on the removal of Pb2＋ in wastewater was studied.[Result] Under 80 min of adsorption time,4.5 of pH and 298 K of temperature,the removal rate of Pb2＋ in wastewater could be up to 99.5%.[Conclusion] The Pb2＋ adsorptive capacity of magnetic modified chitosan was greatly enhanced,the removal rate was improved,and the environmental pollution by wastewater was reduced.
出处
《安徽农业科学》
CAS
2012年第7期4208-4209,4212,共3页
Journal of Anhui Agricultural Sciences
基金
湖北省教育厅科学技术研究计划指导性项目(B20094007)
武汉市市属高等学校科学研究项目(2008K018)
关键词
壳聚糖
吸附
磁改性
PB2+
Chitosan
Adsorption
Magnetical modification
Pb2＋
