| dc.description.abstract | Effluents from textile, leather, tannery, electroplating, galvanizing, pigment and dyes,
metallurgical and paint industries and other metal processing and refining operations at small and
large-scale sector contain considerable amounts of toxic metal ions. The toxic metals and their
ions are not only potential human health hazards but also to another life forms. Toxic metal ions
cause physical discomfort and sometimes life-threatening illness including irreversible damage
to vital body system. From the eco-toxicological point of view, the most dangerous metals are
mercury, lead, cadmium and chromium(VI).
The analysis of wastewater for trace and heavy metal contamination is an important step in
ensuring human and environmental health. This project shows that sugarcane bagasse has rapid
adsorption rate and good adsorption capacity for cadmium and chromium. The Cd2+ was found
to be dependent on PH and contact time. Sugar cane bagasse exhibits a high degree of Cr (VI)
removal and it can be utilized for the treatment of industrial wastes containing chromium (VI)
concentrations which are very high. Generally, the project study indicated that sugarcane bagasse
can be a good adsorbent material for Cd2+ and Cr(VI) removal from dilute aqueous solutions
and also it is cheaper and more efficient to use sugarcane bagasse to remove heavy metals. Most
conventional methods are very expensive and impose high cost on the industries in treating such
wastes. It is recommended that the adsorption be done at a PH that is almost neutral. There
should also be enough contact time to increase the efficiency of the process. | en_US |
