The potential of Zea mays, Commelina bengelensis, Helianthus annuus and Amaranthus hybridus for phytoremediation of waste water
2012
Nathan, Oyaro(Narok university College Department of chemistry) | Njeri, Kimenyu Phylis(Jomo Kenyatta University of Agriculture & Technology Department of chemistry) | Rang'ondi, Okong'o Eric(Jomo Kenyatta University of Agriculture & Technology Department of chemistry) | Sarima, Chacha Joseph(Narok university College Department of chemistry)
anglais. Waste-water from domestic use and from industrial effluent burden the water systems with high levels of heavy metal hence there is need to remove these heavy metals so that the waste water can be recycled for use for household or irrigation. The present study has screened Zea mays (maize), Commelina bengelensis (wondering jew), Helianthus annuus (sunflower) and Amaranthus hybridus (amaranthus) for their ability to bioaccumulate Pb, Cu, Cd and Zn metals. The results obtained show that the H. annuus and C. bengelensis plant have promising potential for removal of Pb, Cu and Cd from wastewater though their ability to remove Zn from contaminated solutions is not much different from that of Z. mays and A. hybridus.
Afficher plus [+] Moins [-]portugais. Nas águas residuárias de origem doméstica ou esgoto sanitário, níveis elevados de metais tóxicos poluem os sistemas hídricos e, por conseguinte, há necessidade de eliminar esses elementos para que as águas residuárias possam ser recicladas para uso doméstico ou irrigação. O presente estudo avaliou a capacidade das espécies Zea mays (milho), Commelina bengelensis (trapoeraba), Helianthus annuus (girassol) e Amaranthus hybridus (amaranto) para bioacumulação de Pb, Cu, Cd e Zn. Os resultados revelaram que o H. annuus e a C. bengelensis têm potencial para remoção do Pb, Cu e Cd de águas residuárias, entretanto, a capacidade delas para remoção de Zn não é muito diferente das espécies Z. mays e A. hybridus.
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