Publication: Enhanced phytoremediation of arsenic contaminated land
Issued Date
2007-08-01
Resource Type
ISSN
00456535
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2-s2.0-34250325936
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Mahidol University
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SCOPUS
Bibliographic Citation
Chemosphere. Vol.68, No.10 (2007), 1906-1912
Suggested Citation
P. Jankong, P. Visoottiviseth, S. Khokiattiwong Enhanced phytoremediation of arsenic contaminated land. Chemosphere. Vol.68, No.10 (2007), 1906-1912. doi:10.1016/j.chemosphere.2007.02.061 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/24343
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Title
Enhanced phytoremediation of arsenic contaminated land
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Abstract
In an attempt to clean up arsenic (As) contaminated soil, the effects of phosphorus (P) fertilizer and rhizosphere microbes on arsenic accumulation by the silverback fern, Pityrogramma calomelanos, were investigated in both greenhouse and field experiments. Field experiments were conducted in Ron Phibun District, an As-contaminated area in Thailand. Soil (136-269 μg As g-1) was collected there and used in the greenhouse experiment. Rhizosphere microbes (bacteria and fungi) were isolated from roots of P. calomelanos growing in Ron Phibun District. The results showed that P-fertilizer significantly increased plant biomass and As accumulation of the experimental P. calomelanos. Rhizobacteria increased significantly the biomass and As content of the test plants. Thus, P-fertilizer and rhizosphere bacteria enhanced As-phytoextraction. In contrast, rhizofungi reduced significantly As concentration in plants but increased plant biomass. Therefore, rhizosphere fungi exerted their effects on phytostabilization. © 2007 Elsevier Ltd. All rights reserved.