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论文编号:SW168 论文字数:5825,页数:14
摘要:重金属污染是人类面临的严峻环境保护问题之一。本实验研究了用海藻酸钠作为吸附剂去除水溶液中重金属铜离子，以及吸附过程中试验条件对吸附效果的影响。结果表明吸附过程在10min左右就达到了平衡；在pH为6时吸附效果达到最佳；吸附温度以30℃左右为宜。
关键词：海藻酸钠；铜离子；吸附；去除率；环境
Abstract：The heavey iron pollution is one of serious concerns of envionment protection of human being. In this experiment, the adsorption of sodium alginate to Cu2+ was studied. The results showed that sodium alginate has a good adsorption to Cu2+．The adsorbing equilibriums were reached within 10 minutes．The pH value of the solution had a great effect on the adsorption．When pH was about 6.0，the adsorbing effect was the best．The optional temperiture of adsorption of sodium alginateto Cu2+ was about 30℃.
Key words：sodium alginate；adsorption；copper ions；removing rate；environment
目录
中文摘要…………………………………………………………………………Ⅰ
英文摘要…………………………………………………………………………Ⅱ
目录………………………………………………………………………………Ⅲ
绪论……………………………………………………………………………1
1.1海藻酸钠的简介…………………………………………………………1
1.2重金属离子……………………………………………………………3
2.实验部分………………………………………………………………………4
2.1实验材料………………………………………………………………5
2.2实验方法……………………………………………………………… 5
2.3铜离子浓度的测定…………….………………………………………5
2.4金属铜离子去除率……………………………………………………6
3.结果与讨论……………………………………………………………………6
3.1结果分析………………………………………………………………7
3.1.1吸附时间对吸附效果的影响……………………………………7
3.1.2海藻酸钠用量对铜离子吸附效果的影响………………………………8
3.1.3 PH值对海藻酸钠对铜离子吸附的影响…………………………9
3.1.4温度对吸附效果的影响…………………………………………10
3.2讨论……………………………………………………………………11
4.总结和展望……………………………………………………………………12
致谢………………………………………………………………………………13
参考文献…………………………………………………………………………14
