alexa Improvement of dewatering capacity of a petrochemical sludge.
Chemical Engineering

Chemical Engineering

Journal of Advanced Chemical Engineering

Author(s): Buyukkamaci N, Kucukselek E

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Abstract Oily sludge produced from a petrochemical industry was used to investigate the improvement of its dewatering properties. The oil content (OC) and the dry solid content (DS) of the raw sludge were respectively, 15\% and 3.6\% by weight. The capillary suction time (CST) and the specific resistance to filtration (SRF) of the raw petrochemical industrial sludge were found to be 2000s and approximately 5.5x10(16)m/kg, respectively. Conventional chemical conditioners such as alum, lime, and polyelectrolyte, and less conventional ones like fly ash, gypsum, and bentonite were used in the sludge conditioning studies. Conventional chemical conditioners gave better results for the enhancement of the dewatering capacity of the sludge. The best result was obtained by using 0.9\% cationic polyelectrolyte by weight, and a decrease of 99\%-95\% were achieved for CST and SRF, respectively, when this dosage of cationic polyelectrolyte was used. This article was published in J Hazard Mater and referenced in Journal of Advanced Chemical Engineering

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