水生植物对低浓度铜离子净化效果的比较

To Compare the Purgative Effect of Hydrophytes on the Low Concentration of Copper

选取5种水生植物,研究其对不同浓度铜离子的净化效果。结果表明,这些植物对不同浓度Cu2+的去除效果均显著,去除率达到85%以上。在净化能力上,最好的为水葫芦和风车草,其次是铜钱草和美人蕉,石菖蒲略差。最后得出结论,对于净化铜污染废水应选择根系发达的植物。

Choosing 5 hydrophyte,studied the purification effect of copper ions in different low concentration. The results showed that the removal effect of different concentration of Cu-（2＋） for 5 hydrophyte was remarkable,and the removal rate was more than 85%. In the purification capacity,the best were water hyacinth and windmill grass,the second were the money of copper grass and canna,the worse was acorus gramineus soland. In the treatment of copper wastewater,we should choose the developed root plant.