This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.
Lead is an element of considerable environmental and toxicological interest because of its potential deleterious effects upon
human health. In this research, a laboratory-constructed hydroponic system was employed to characterize bioremoval of
lead by a submerged, rootless aquatic plant, Ceratophyllum demersum L. (Coontail or hornwort). Three concentrations of lead
were used (0.125, 0.250, and 0.500 μg/ml). Results indicated that maximum lead removal of 65.6%, 58.2% and 56.4% were
achieved from nutrient media with low, medium and high initial concentrations, respectively, after 25 days. Generally, lead
uptake (absorbed fraction) increases with time till reaching equilibrium at the last five days of the experiment. The highest lead
uptake rate was recorded in the first five days in all treatments. On the other hand, the adsorbed (exchangeable) fraction of
lead onto C. demersum showed a remarkable decrease with increasing metal concentration in the nutrient media. Results also
showed that C. demersum can accumulate and adsorb high amount of lead in concentration and duration dependent manner.
This research indicated the remarkable bioremoval potentialities of C. demersum as it is capable to remove 32.2% of the lead
under relatively high concentration (0.500 μg/ml) within five days. Accordingly, this plant can be useful for the design of cost
effective and eco-friendly wastewater treatment plants.
Nadia Badr El-Sayed has completed her PhD at the age of 35 years from Wayne State University USA. She is the Professor of Environmental Chemistry, Faculty of
Science, Alexandria University. She has published more than 38 papers in reputed journals, worked in 4 international scientific projects and supervised 10 master
and doctorate thesis. Her research interest focuses on monitoring, assessment, management and treatment for hazardous inorganic and organic wastes using
modern technologies as water quality modeling as well as biological and nano remediation processes.
Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals