摘要
通过静态水培实验和原子吸收分光光度法的测定,发现水葫芦对个别重金属离子累积去除率头两天为Zn≈Cd>Fe,以后为Fe>Zn>Cd;5天中,Cd2+在水葫芦老黄茎叶中的积累量增长了130 0倍;在混合离子培养液中,Zn2+的去除速率明显下降,而Cd2+和Fe3+变化不明显。表明水葫芦在治理含镉废水方面有良好的应用前景。
The removal rates of several heavy mental ions have been studied by static hydroponics test and atomic absorption spectrophotometry. The results show that the removal rate is Zn≈Cd>Fe in the first two days' test, and the later result is Fe>Zn>Cd; The content of Cd in the yellow leaves of common waterhyzainthes is 130.2 times than the beginning. The removal rate of Zn decreases greatly in mixed mental ion solution, but the changes about Cd and Fe are not distinctive. It shows that common waterhyaeinthes can be used to treat wastewater with cadmium of low concentration.
出处
《云南环境科学》
2005年第1期10-12,3,共4页
Yunnan Environmental Science
关键词
水葫芦
重金属离子
去除速率
common waterhyacinthes
heavy mental ion
removal rate
