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Water phytoremediation of cadmium and copper using <scp>A</scp> zolla filiculoides <scp>L</scp> am. in a hydroponic system
- Source :
- WATER AND ENVIRONMENT JOURNAL, Artículos CONICYT, CONICYT Chile, instacron:CONICYT
- Publication Year :
- 2012
- Publisher :
- Wiley, 2012.
-
Abstract
- The aim of this work was to evaluate the utility of Azolla 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 Azolla filiculoides were exposed to 10 mg/L of Cd and 25 mg/L of Cu. The Azolla plants were not affected in the other phytoremediation treatments with copper.
- Subjects :
- Cadmium
Environmental Engineering
biology
chemistry.chemical_element
Management, Monitoring, Policy and Law
biology.organism_classification
Azolla
Pollution
Copper
Azolla filiculoides
law.invention
Phytoremediation
chemistry
law
Environmental chemistry
Botany
Spinach
Copper chloride
Atomic absorption spectroscopy
Water Science and Technology
Subjects
Details
- ISSN :
- 17476593 and 17476585
- Volume :
- 27
- Database :
- OpenAIRE
- Journal :
- Water and Environment Journal
- Accession number :
- edsair.doi.dedup.....c045306fdf9aa5878e2ae03bea777ccb