Light scattering study of algal floc growth and structure: alum polymeric plant-derived flocculant.

The flocculation dynamics of algal cultures using alum and aqueous seed extracts as flocculants were analyzed through light scattering and fractal analysis. Floc growth in continuously stirred suspensions, with cell densities ranging from 200 to 800 μg L chlorophyll (Chl ), exhibited distinct patterns in fractal dimension () evolution relative to floc size: a smooth, monotonic increase; stochastic increase; and stabilization or leveling off. values ranged from 1.