Saline wastewater treatment by halophile-supplemented activated sludge culture in an aerated rotating biodisc contactor

Kargi F., Dincer A.

ENZYME AND MICROBIAL TECHNOLOGY, vol.22, no.6, pp.427-433, 1998 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 22 Issue: 6
  • Publication Date: 1998
  • Doi Number: 10.1016/s0141-0229(97)00215-9
  • Journal Name: ENZYME AND MICROBIAL TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.427-433
  • Keywords: saline wastewater, rotating biodisc contactor, halophilic bacteria, BIOLOGICAL TREATMENT, WATER, BACTERIA, PERFORMANCE, REACTOR
  • Dokuz Eylül University Affiliated: No

Abstract

Synthetic wastewater containing 0-10% salt (NaCl) was treated in a rotating biodisc unit operating in continuous mode. Salt tolerant, Halobacter halobium-supplemented activated sludge culture was used ill order to alleviate salt inactivation effects. Effects of important process variables suck as inclusion of Halobacter, A/Q ratio, COD lending rate, and salt concentration on the COD removal rate and efficiency, were investigated. The system performance improved with increasing A/Q ratio; however, it decreased with increasing COD lending rate and salt content. The liquid phase Ic as aerated in order to keep suspended cells active at feed COD concentrations of 5,000 mg l(-1). A mathematical model was developed to describe the system behavior Model parameters were determined by using the experimental data. Salt inhibition was Sound to be significant for salt contents larger then 3% NaCl. (C) 1998 Elsevier Science Inc.