Removal of cadmium, nickel and lead polluted from soil using different hyper-accumulating plants
Abstract: A pot experiment was carried out using five selected plant species, i.e. a- ornamental plants (Dimorphotheca, Saliva Rose and saliva Blue) and b-Fiber plants (Flax strain 5 and Flax strain 8), which were used to remove heavy metals ( Cd, Ni and Pb). Seeds of plants were sown in sandy soil contaminated with heavy metals, collected from a site near oxidation pond, and irrigated with sewage water. Plants were harvested after 180 days and separated into roots, shoots and flowers or seeds, then digested and analyzed for Cd, Ni and Pb.
The obtained results could be summarized as flow:
1- The high values of dry weight were recorded with Dimorphotheca plant, while the lowest values were recorded with Flax strain 8.
2- Concentration of Cd in total tissue was arranged in the following descending order Saliva blue > flax strain 5 > saliva rose > flax strain 8 > Dimorphotheca. While, Ni concentration was arranged as follows: Saliva blue > saliva rose > Dimorphotheca> flax strain 5 > Flax strain 8. Also, the concentration of Pb in plant tissues was arranged in the following descending order Saliva rose > saliva blue > flax strain 8 > Dimorphotheca > flax strain 5.
3- The accumulation index values for Pb in total plant tissues were higher than corresponding values for Cd and Ni.
4- The uptake of heavy metals by ornamental plants is arranged in the following order Saliva rose > dimorphotheca > saliva blue, while in flax varieties is arranged in the following order flax strain 5 > flax strain 8
5- The accumulation of elements depends on plant species, specific sort of element and its content in the soil and water.
6- The highest removal percentage of total Cd,Ni and Pb was observed in cultivated soil with saliva rose, flax strain 5 and dimorphotheca plants respectively.
Publication year 2004
Pages 1-14
Availability location Institute of Environmental Studies and Research, Ain Shams University
Availability number 9/2004
Organization Name
Country Egypt
City Cairo
Publisher Name: Institute of Environmental Studies and Research, Ain Shams University
serial title Journal of Environmental Sci.ences
Volume 9 . 1
Department Sandy and Calcareous Soils Research
Author(s) from ARC
External authors (outside ARC)
    محمد غريب المالكى معهد الدراسات والبحوث البيئية - جامعه عين شمس
    هشام إبراهيم القصاص معهد الدراسات والبحوث البيئية - جامعه عين شمس
Agris Categories Soil erosion, conservation and reclamationSoil fertility
AGROVOC
TERMS		 Cadmium. Heavy metals. Lead. Nickel. Polluted soil.
Proposed Agrovoc flax plant;sewage water;
Publication Type Journal
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