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Water phytoremediation of cadmium and copper using A zolla filiculoides L am. in a hydroponic system
Author(s) -
Valderrama Aly,
Tapia Jaime,
Peñailillo Patricio,
Carvajal Danny E.
Publication year - 2013
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/wej.12015
Subject(s) - phytoremediation , cadmium , copper , spinach , chemistry , atomic absorption spectroscopy , environmental chemistry , horticulture , botany , heavy metals , biology , biochemistry , physics , organic chemistry , quantum mechanics
The aim of this work was to evaluate the utility of A zolla filiculoides growing in a hydroponic system for the phytoremediation of continental water polluted with cadmium and copper during 7 days of exposure. Cadmium and copper chloride were added to the medium at concentrations of 0.5–10 mg/ L and 0.1–25 mg/ L , respectively. Cadmium and copper levels were measured in each plant using flame atomic absorption spectrophotometry. The analytical methodology used to measure cadmium and copper levels was validated with standard reference material ( SRM ) – 1570 (spinach) National Institute of Standards and Technology. The results indicated that cadmium and copper phytoremediation was statistically significant with a maximum increase in plant tissue of 1623.20 and 6013.1 μg/g, respectively. This photosynthetic efficiency was chronically damaged when A zolla filiculoides were exposed to 10 mg/ L of Cd and 25 mg/ L of Cu . The A zolla plants were not affected in the other phytoremediation treatments with copper.