Найдено научных статей и публикаций: 1, для научной тематики: Sea weeds
1.
Narayanaswamy Tamilselvan, Kumar Saurav, and Krishnan Kannabiran
- J. Ocean Univ. China (Oceanic and Coastal Sea Research) , 2011
Heavy metal pollution is one of the most important environmental problems today. Biosorption is an innovative tech-
nology that employs biological materials to accumulate heavy metals from waste water through metabolic process or physicochemi-
cal pathways of uptake. Even though several physical and...
Heavy metal pollution is one of the most important environmental problems today. Biosorption is an innovative tech-
nology that employs biological materials to accumulate heavy metals from waste water through metabolic process or physicochemi-
cal pathways of uptake. Even though several physical and chemical methods are available for removal of heavy metals, currently
many biological materials such as bacteria, algae, yeasts and fungi have been widely used due to their good performance, low cost
and large quantity of availability. The aim of the present study is to explore the biosorption of toxic heavy metals, Cr(VI), Cr(III),
Pb(II) and Cd(II) by algal biomass obtained from algae Sargassum wightii (brown) and Caulerpa racemosa (green). Biosorption of
algal biomass was found to be biomass concentration- and pH-dependent, while the maximal biosorption was found at pH 5.0 and
with the metal concentration of 100 mgL-1
. Sargassum wightii showed the maximal metal biosorption at the biomass concentration of
25 g L-1
, followed by Caulerpa racemosa with the maximal biosorption at 30 gL-1
. Sargassum wightii showed 78% biosorption of
Cr(VI), Cr(III), Pb(II) and Cd(II) ions. Caulerpa racemosa exhibited 85% biosorption of Cd(II) and Cr(VI), and 50% biosorption of
Cr(III) and Pb(II). The results of our study suggest that seaweed biomass can be used efficiently for biosorption of heavy metals.