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1224237 
Journal Article 
Heavy metal removal from a multi-metal solution and wastewater by Salvinia natans 
Dhir, B; Srivastava, S 
2011 
Yes 
Ecological Engineering
ISSN: 0925-8574 
Elsevier BV 
37 
6 (Jun 2011) 
893-896 
Salvinia showed capacity to accumulate and hence remove more than one heavy metal from multi-metal solutions, though efficiency for heavy metal uptake varied for each metal present in different combinations. The pattern of heavy metal accumulation was confirmed by energy-dispersive X-ray fluorescence (EDXRF) analysis. There was a gradual decrease in heavy metal content in the wastewater samples when fresh biomass was replenished at definite time intervals of treatment. Zn, Cu, Ni and Cr removal to the extent of 84.8%, 73.8%, 56.8%, and 41.4%, respectively, was noted after four samplings of fresh biomass replenishment. Salvinia therefore can be recommended as a species for cleaning water contaminated with heavy metals. 
Fluorescence; heavy metals; Biomass; Metals; water pollution; Zinc; Wastewater treatment; Salvinia natans; Wastewater 
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