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Biotechnology
  Year: 2006 | Volume: 5 | Issue: 1 | Page No.: 1-4
DOI: 10.3923/biotech.2006.1.4
Perennial Plants in the Phytoremediation of Lead-contaminated Soils
K. Cho-Ruk, J. Kurukote, P. Supprung and S. Vetayasuporn

Abstract:
In this experiment, three local perennial plant species, Alternanthera philoxeroides, Sanvitalia procumbens and Portulaca grandiflora, were examined for their ability to uptake lead from lead contaminated soils (75 mg kg-1). Lead concentration in soil under all treatments decreased between 30-80% (62.61-23.18 mg kg -1) when compared to the control (75 mg kg -1). In all treatments, lead accumulation in the plants was higher on day 45 than what was found on days 55 and 65. Among these three species, A. philoxeroides showed a greater potential for lead accumulation than P. granaiflora and. S. procumbens. On day 45, A. philoxeroides showed significant differences in lead accumulation (29.99%) compared to that from P. granaiflora (13.03%) and S. procumbens (16.44%). Even though the amount of lead extracted by these three plants was small, the results showed that A. philoxeroides had the ability to extract an approximately 1.3-1.8 times greater amount than P. grandiflora and S. procumbens. Phytoremediation technology is environmentally friendly and cost-effective; A. philoxeroides may be a practicable alternative for protecting the soil in Thailand from leaching lead.
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How to cite this article:

K. Cho-Ruk, J. Kurukote, P. Supprung and S. Vetayasuporn, 2006. Perennial Plants in the Phytoremediation of Lead-contaminated Soils. Biotechnology, 5: 1-4.

DOI: 10.3923/biotech.2006.1.4

URL: http://scialert.net/abstract/?doi=biotech.2006.1.4

 
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