Home // INNOV 2019, The Eighth International Conference on Communications, Computation, Networks and Technologies // View article
Authors:
Manal Fawzy
Ahmed El-Khatib
Nadia Badr
Amany Abo-El-Kasem2
Javier Rocher
Daniel Basterrechea
Keywords: lead; Biomonitoring; Bioremoval; biosorption; macrophytes.
Abstract:
The contamination of water by heavy metals like Pb is a huge problem for the environment. In this paper, we test Ceratophyllum demersum L. plants as phytoindicator. These were exposed to different concentrations of Pb for 1–21 days, under hydroponic conditions, where they exhibited both adsorption and absorption efficiency. These efficiencies influenced in concentration and duration in a dependent manner. For the three initial treatments 0.125, 0.250, 0.500 µg/ml, the values of regression coefficients described the occurred variance on the rapid decrease in the Pb concentration in the hydroponic media, reflecting highest removal efficiency by C. demersum. Significant variation (P< 0.05) was recorded between the concentration of Pb accumulated in C. demersum at 0.125 and 0.250 µg/ml, while a highly significant value (P< 0.01) was recorded between them at 0.500 µg/ml. The regression coefficient denotes the pronounced impact of treatment concentration on the accumulation rate (R^2 = 0.9987). The adsorption efficiency of C. demersum appeared to be influenced by the Pb hydroponic media concentration, where after 21 days, the higher Pb adsorption was recorded at 0.125 µg/ml and the lowest one was obtained at 0.500 µg/ml. Results suggest that plants responded positively to the increase of Pb concentrations and they accumulated a high amount of metal. Due to metal removal coupled with detoxification potential, the plant appears to have potential for its use as phytoremediator species in aquatic environments.
Pages: 20 to 26
Copyright: Copyright (c) IARIA, 2019
Publication date: November 24, 2019
Published in: conference
ISSN: 2326-9286
ISBN: 978-1-61208-758-0
Location: Valencia, Spain
Dates: from November 24, 2019 to November 28, 2019