Tolerance and Survival of Scirpus grossus and Lepironia articulata in Synthetic Mining Wastewater
2015; Volume: 8; Issue: 5 Linguagem: Inglês
10.3923/jest.2015.232.237
ISSN2077-2181
AutoresNur ‘Izzati Ismail, Siti Rozaimah Sheikh Abdullah, Mushrifah Idris, Hassimi Abu Hasan, Nadya Hussin AL Sbani, Omar Hamed Jehawi,
Tópico(s)Clay minerals and soil interactions
ResumoPhytoremediation 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 LG 1 Fe+50 mg LG 1 Al until 750 mg LG 1 Fe+250 mg LG 1 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 LG 1 Fe+150 mg LG 1 Al) compared to S. grossus (300 mg LG 1 Fe+100 mg LG 1 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.
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