Improvement of dewatering capacity of a petrochemical sludge

Buyukkamaci N., Kucukselek E.

JOURNAL OF HAZARDOUS MATERIALS, cilt.144, sa.1-2, ss.323-327, 2007 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 144 Sayı: 1-2
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.jhazmat.2006.10.034
  • Dergi Adı: JOURNAL OF HAZARDOUS MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.323-327
  • Anahtar Kelimeler: sludge, oily sludge, conditioning, petrochemical, oil, OILY SLUDGE, ALUM SLUDGE, POLYMER, GYPSUM
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

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 2000 s and similar to 5.5 x 10(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 polyclectrolyte was used. (C) 2006 Elsevier B.V. All rights reserved.