The husk was collected from a legume seed splitting mill at Dharampur, (Dist:-Valsad, State:-Gujara,
India). The husks were thoroughly washed with water to remover adhering dirt and soluble components. The
washed husk was then oven-dried at 85±10 ºC until the weight became constant. The washed dried materials
were crushed and used for experiments.
The stock solution (100 ppm) of zinc sulphate and cadmium nitrate prepared in the laboratory and diluted
different concentration using distilled water and each 100 ml; 1 gm of husk was added and agitated in a rotary
shaker at 200 rpm for 20 min. The adsorbate and the adsorbent were separated using Whatman no.1 filter
paper. The concentrations of Zinc and Cadmium were measured in remain solution at IIT, SAIF, Bombay-
India and percentage of absorbance were calculated.