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Bacteria strain H8, which produces high amount of exopolysaccharide (EPS), was isolated from soil, and identified
as strain of Azotobacter chrococcum by its biochemical /physiological characteristics, EPS was extracted, partially
purified and used as bioflocculant. The biochemical analysis of the partially purified EPS revealed that it was an
alginate. analysis of EPS by Fourier transform infrared spectrometry (FTIR) show that the -OH groups present in
bioflocculant are clearly seen at 3433.06 cm-1, the peaks attributed to the -CH3 groups present at 2916.17 cm-1
,
and some distinct peaks such as carboxyl group showed strong absorption bands at 1604.66 cm-1, 1411.80 cm-1
and 1303.79 cm-1 indicate the chemical structure of alginate. The effe
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