期刊名称：Journal of Environmental Science and Technology
印刷版ISSN：1994-7887
电子版ISSN：2077-2181
出版年度：2015
卷号：8
期号：5
页码：232-237
DOI：10.3923/jest.2015.232.237
出版社：Asian Network for Scientific Information
摘要：Phytoremediation technology involves plants to treat contaminated areas. In this study, before phytoremediation technology can be used to treat mining wastewater, the range of the mixture of Fe and Al concentrations was determined in order to investigate the plant tolerance and survival towards those contaminants. The combined effects of Fe and Al were investigated by observing the visible symptoms of withering and death of plants at the end of exposure day (Day 21). Three-litre pails containing 3 kg of sand and plants ( Scirpus grossus and Lepironia articulata ) were exposed to different concentrations of Fe and Al solution mixture (150 mg L1 Fe+50 mg L1 Al until 750 mg L1 Fe+250 mg L1 Al with mass ratio between Fe and Al was 3:1). After 21 days of exposure, it was observed that L. articulata could tolerated in a more highly concentrated mixture of Fe and Al (450 mg L1 Fe+150 mg L1 Al) compared to S. grossus (300 mg L1 Fe+100 mg L1 Al) with 33.3% survival. Therefore, by determining the tolerance and survival of S. grossus and L. articulate towards Fe and Al, it is useful in designing the effective phytoremediation technology for the treatment of mining wastewater.
