COD, para-chlorophenol and toxicity removal from synthetic wastewater using rotating tubes biofilm reactor (RTBR)

EKER S., Kargi F.

BIORESOURCE TECHNOLOGY, cilt.101, sa.23, ss.9020-9024, 2010 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 101 Sayı: 23
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.biortech.2010.07.003
  • Dergi Adı: BIORESOURCE TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.9020-9024
  • Anahtar Kelimeler: Biological treatment, COD removal, 4-Chlorophenol (4-CP), Rotating tubes biofilm reactor (RTBR), Toxicity removal, PSEUDOMONAS-PUTIDA CP1, COMETABOLIC DEGRADATION, BIOLOGICAL TREATMENT, 2,4-DICHLOROPHENOL, BIODEGRADATION, 4-CHLOROPHENOL, PERFORMANCE, KINETICS, SLUDGE, PHENOL
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Para-chlorophenol (4-chlorophenol, 4-CP) containing synthetic wastewater was treated using a rotating perforated tubes biofilm reactor (RTBR). Box-Wilson statistical experiment design and response surface methodology (RSM) were used to investigate the effects of the feed COD, 4-CP contents and the A/Q (biofilm surface/flow rate) ratio on percent COD, 4-CP and toxicity removals. Increases in A/Q ratio and the feed COD contents improved COD, 4-CP and toxicity removals. High feed 4-CP contents adversely affected the system performance due to toxic effects of 4-CP on microorganisms. High A/Q ratio and feed COD contents were required for effective 4-CP and toxicity removals at high feed 4-CP contents. More than 95% 4-CP and toxicity removals were obtained with an A/Q ratio of 186 m(2) d m(-3), and feed COD of 6000 mg L-1 with the feed 4-CP content of 1000 mg L-1. The RTBR was proven to be more efficient than the RBBR used for the same purpose in our previous studies. (C) 2010 Elsevier Ltd. All rights reserved.