Biosorption of Cadmium from Aqueous Solutions by Banana Peel Powder

摘要

Water pollution is worst in developing countries, where human health is gravely damaged by accelerating eutrophication, heavy metals, persistent organic pollutants and sewage pollution. Among the various contaminants in waters, the presence of heavy metals is proven to be extremely harmful due to their high toxicity and non-biodegradability. To avoid health hazards it is essential to remove these toxic heavy metals from waste water before its disposal. In this point of view, to remove cadmium by eco-friendly manner banana peel powder based biosorbents has been taken for the present investigation, and used Atomic Adsorption Spectrophotometer for metal estimation. The SEM image determined that banana peel contain irregular porous surface area, and also the FTIR peaks showed that banana peel has O-H, C-H, C=C, C-F and C-CI functional groups which has important rule in adsorption of metals. The effects of pH and metal ion concentration on adsorption efficiency were studied in the present batch study ofmetal biosorption. The highest adsorption % of Cd (II) adsorbed was evaluated 88.01% from 75 ppm and pH 6 solution. In the conclusion of the study the banana peel has high capacity of heavy metals adsorption from wastewater such as Cd (II).