TAILIEUCHUNG - A two-year field study of phyto remediation using solanum nigrum l. in DongNai, VietNam
The results indicate that soil Cd decreased significantly by planting S. nigrum. The Cd concentrations decreased averagely from mg kg-1 to mg kg-1 in the first year and mg kg-1 to mg kg-1 in the second year, separately. Decrease by a factor of % in first year and 12 % second year. | Journal of Science and Technology 54 (2A) (2016) 78-83 A TWO-YEAR FIELD STUDY OF PHYTO REMEDIATION USING SOLANUM NIGRUM L. IN DONGNAI, VIETNAM Nguyen Thanh Hung1, *, Mai Huong Tra2 1 Thu Dau Mot University, Binh Duong, No 6 Tran Van On street, Phu Hoa ward, Thu Dau Mot city, Binh Duong province, Vietnam 2 Lac Hong University, Dongnai, No 10, Huynh Van Nghe street, Buu Long ward, Bien Hoa city, Dong Nai province, Vietnam * Email: hungphuocan@ Received: 5 May 2016; Accepted for publication: 26 June 2016 ABSTRACT A two- year in-situ phytoremediation trial was conducted in Dongnai province. The phytoremediation efficiency of Solanum nigurm L. was detected, by monitoring the change of soil Cadmium level in the 0 - 20 cm soil depth. The results indicate that soil Cd decreased significantly by planting S. nigrum. The Cd concentrations decreased averagely from mg kg-1 to mg kg-1 in the first year and mg kg-1 to mg kg-1 in the second year, separately. Decrease by a factor of % in first year and 12 % second year. After two years phytoremediation by S. nigrum, Cd concentrations of the seven experimental plots with S. nigrum growth decreased from mg kg-1 to mg kg-1, and decrease by a factor of . Therefore, using S. nigrum for phytoremediation of Cd contaminated farmland soils seems very promising, and we can conclude that S. nigrum will get a better performance in the warmer area, as the temperature of the experimental area is relatively lower. Key words: In-situ, phytoremediation, cadmium, Solanum nigrum L., efficiency. 1. INTRODUCTION Among the heavy metals，Cd has a very high mobility in soil- plant systems, with propensity to damage both human health and the functioning of ecosystems [1]. Therefore, it is necessary to put remediation of Cd-contaminated soils into action. Until now, many published papers suggested that phytoremediation could potentially be used to remediate heavy metal contaminated soils [2], as compared
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