Hexavalent chromium removal from contaminated soil by phytoremediation with Phyllanthus reticulatus in Thailand
The possibility of using phytoremediation with weed plant species in Thailand to remove chromium (Cr) from soil was conducted. The weed plant species were studied because they have no value and are burdens to the environment as agriculture waste. Phyllanthus reticulatus was chosen for this ability to accumulate total chromium (TCr). This plant species was studied in pots at a nursery. TCr accumulation capacities of roots, stems and leaves on this plant was 390.6, 61.5 and 58.7mg/kg of plant on a dry weight basis at days 30, respectively, at a pulse hexavalent chromium Cr (Ⅵ) concentration. The Cr(Ⅲ) uptake by Phyllanthus reticulatus occurred mainly in roots, stems and leaves at 291.4, 3.4 and 3.3mg/kg of plant on a dry weight basis, respectively, Within 30 days of dosing, Phyllanthus reticulatus had Cr(Ⅵ) accumulation in roots, stems and leaves of 99.2, 58 and 55.3mg/kg of plant on a dry weight basis of the Cr(Ⅵ) input, respectively. The results on hexavalent chromium accumulation and translocation in plant tissues suggest that Cr was removed mainly via phytoextraction and that Phyllanthus reticulatus is more suitable for the phytoremediation of Cr contaminated soil.
Hexavalent chromium phytoremediation tannery weed plant species
Sutinee Wadesirisak Pantawat Sampanpanish
Inter-Department of Environmental Science, Chulalongkorn University, Bangkok 10330, Thailand Environmental Research Institute, Chulalongkorn University, Bangkok 10330, Thailand
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
248-250
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）