Abstract
The authors establish correlations between certain physicochemical properties of polyelectrolytes and their flocculating activity in the treatment of refinery and petrochemical wastewater containing petroleum crudes and products. The polyelectrolytes tested include poly-1,2-dimethyl-5-vinyl-pyridinemethylsulfates, polydimethyldiallylammonium chloride, aminated polyacrylamide, oxymethylated polyacrylamide, polyethyleneimine, and polyaminoalkyl ester of methacrylic acid. Streaming potentials, intrinsic viscosities, and swelling moduli were determined along with treating efficiency. Polyethyleneimine was determined to be the most active flocculant.
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