2,4-Dichlorophenol (DCP) containing wastewater treatment using a hybrid-loop bioreactor

Dilaver M., Kargi F.

BIORESOURCE TECHNOLOGY, vol.100, no.3, pp.1459-1462, 2009 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 100 Issue: 3
  • Publication Date: 2009
  • Doi Number: 10.1016/j.biortech.2008.07.054
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1459-1462
  • Keywords: Biological treatment, Hybrid-loop bioreactor, 2.4-Dichlorophenol (DCP), Toxicity removal, PHENOLIC-COMPOUNDS, TOXICITY, CHLOROPHENOLS, BIODEGRADATION, PERFORMANCE, REMOVAL, REACTOR, SYSTEM, 2,4,6-TRI-CHLOROPHENOL, CULTURE
  • Dokuz Eylül University Affiliated: Yes


Synthetic wastewater containing 2,4-dichlorophenol (DCP) was biologically treated using a hybrid-loop bioreactor system consisting of a packed column biofilm reactor (PCBR) and an aerated tank with effluent recycle. Effects of the feed DCP concentration on COD, DCP and toxicity removals were investigated. Biomass concentration in the packed column and in the aeration tank decreased with increasing feed DCP content due to toxic effects of DCP on the microorganisms. Low biomass concentrations at high DCP contents resulted in low COD, DCP and toxicity removals. Therefore, percent DCP, COD and toxicity removals decreased with increasing feed DCP content. Nearly 70% COD removal was achieved with a feed DCP content of 380 mg L-1. The system should be operated with the feed DCP lower than 100 mg L-1 in order to obtain DCP, COD and toxicity removals above 90%. (c) 2008 Elsevier Ltd. All rights reserved.