Ghobrial, M. (2000). TREATMENT OF CADMIUM, COPPER, ZINC AND IRON IN WASTEWATER BY THE HORNWORT CERATOPHYLLUM DEMERSUM. Egyptian Journal of Aquatic Biology and Fisheries, 4(1), 35-46. doi: 10.21608/ejabf.2000.1639
Mary Ghobrial. "TREATMENT OF CADMIUM, COPPER, ZINC AND IRON IN WASTEWATER BY THE HORNWORT CERATOPHYLLUM DEMERSUM". Egyptian Journal of Aquatic Biology and Fisheries, 4, 1, 2000, 35-46. doi: 10.21608/ejabf.2000.1639
Ghobrial, M. (2000). 'TREATMENT OF CADMIUM, COPPER, ZINC AND IRON IN WASTEWATER BY THE HORNWORT CERATOPHYLLUM DEMERSUM', Egyptian Journal of Aquatic Biology and Fisheries, 4(1), pp. 35-46. doi: 10.21608/ejabf.2000.1639
Ghobrial, M. TREATMENT OF CADMIUM, COPPER, ZINC AND IRON IN WASTEWATER BY THE HORNWORT CERATOPHYLLUM DEMERSUM. Egyptian Journal of Aquatic Biology and Fisheries, 2000; 4(1): 35-46. doi: 10.21608/ejabf.2000.1639
TREATMENT OF CADMIUM, COPPER, ZINC AND IRON IN WASTEWATER BY THE HORNWORT CERATOPHYLLUM DEMERSUM
Researcher in Botany Department ofHydrobiology, National Institute of Oceanography and Fisheries, KayetBay, Alexandria,
Abstract
The hornwort, Ceratophyllum demersurn L., was investigated as a potential biological filter for metal removal from domestic effluent. The plants were grown on media with a series of sewage dilutions. The waste water concentration of 2:5 was optimum for plant harvest realizing maximum uptake and accumulation of Cd and Cu within 9 days treatment. Their contents were, respectively, 2.9 and 3.9 folds higher than that of the control plants.rZinc was more readily accumulated with an increase of 2.2-75.5 times the initial content in the plant. Iron was greatest in plants grown on 4:5 waste dilution in 7 days treatment. Manganese ion increased slightly by the first waste treatment but was supressed leakage by the successive runs, while K+ and Na+ ions loss was less pronounced at the beginning of treatment followed by considerable increase in K+ content. Growth rates did not exceed 4.0g g"1 fresh weight d"1 at low waste dilutions. Ceratophyllum, may prove useful in the detoxification of domestic effluents, it has a capacity to retain heavy metals within its tissues
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