Phytoremediation of Arsenic Contaminated Water

Randhir Kumar and Tarun Banerjee

A chapter in Heavy Metals from IntechOpen

Abstract: The present investigation deals with the detoxification of arsenic contaminated water using phytoremediation technique. Three macrophytes Azolla pinnata, Lemna minor, and Hydrilla verticillata were exposed to 1.0 ppm of an arsenic salt (sodium arsenite) separately as well as in combination (ALH) for 10 days. The concentration of arsenic in control (wild) macrophytes was below detectable limit. Following exposure, the concentration of arsenic increased steadily in all the plants, and after 10 days, the efficacy of arsenic depletion in phytoremediated media was in the order: A. pinnata (88.06%) > L. minor (82.56%) > H. verticillata (77.53%) and 85.50% when applied in combination (ALH). It was found that A. pinnata can detoxify the arsenic contaminated water most efficiently.

Keywords: arsenic contamination; bioaccumulation; macromolecular depletion macrophytes; phytoremediation (search for similar items in EconPapers)
JEL-codes: Q55 (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:ito:pchaps:138414

DOI: 10.5772/intechopen.72238

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