Phytoremediation potential of Arundo donax in arsenic-contaminated synthetic wastewater

作者：Mirza Nosheen; Mahmood Qaisar^*; Pervez Arshid; Ahmad Raza; Farooq Robina; Shah Mohammad Maroof; Azim Muhammad Rashid

来源：Bioresource Technology, 2010, 101(15): 5815-5819.

DOI：10.1016/j.biortech.2010.03.012

• Arundo donax
• Arsenic pollution
• Bioaccumulation
• Oxidative stress
• Phytoextraction

The present study reports the potential of Arundo donax for phytoextraction of arsenic from synthetic wastewater. A. donax plants were grown under greenhouse conditions in pots containing a nutrient solution amended with increasing doses of As (0, 50, 100, 300, 600 and 1000 mu g L(-1)) for 21 days in a completely randomized design. Shoot and roots dry matter production, growth parameters, arsenic and nutrient tissue concentrations were measured at the end of the experiment. Increasing As concentration in nutrient solution caused an increase in shoot and root biomass without toxicity symptoms in A. donax growing under a range of As concentration from 50 to 600 mu g L(-1). Elevated oxidative stress was observed at As supplied level of 1000 mu g L(-1). The As doses up to 600 mu g L(-1) did not affect the growth of A. donax. It is suggested that A. donax plants may be employed to treat contaminated waters containing arsenic concentrations up to 600 mu g L(-1).

• 出版日期2010-8