Toxicity evaluation of raw, physico-chemically pretreated and to Fenton's oxidation applied textile and Organized Industrial Region (OIR) effluents on activated sludge

Kestioglu K., YONAR T., YONAR T., ŞEN M.

FRESENIUS ENVIRONMENTAL BULLETIN, cilt.17, ss.969-977, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 17
  • Basım Tarihi: 2008
  • Dergi Adı: FRESENIUS ENVIRONMENTAL BULLETIN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.969-977
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

In this study, acute toxicities of raw, physico-chemically pre-treated, ozonated and to Fenton's oxidation applied samples of textile effluents, including towel dyeing, printing and finishing and Organized Industrial Region (OIR) wastewater on activated sludge microorganisms using respiration inhibition test (ISO 8192), are presented. Chemical pre-treatment positively affected the biodegradability, and inhibition on activated sludge was considerably removed (>48% color and >75% COD). Ozonation and Fenton processes showed high color (>90%) and COD (>70%) removal performance on evaluated effluents. No inhibitory effect of ozonated and to Fenton's reagent applied samples on activated sludge mixture was found. In addition to toxicity, color and COD removal efficiencies of the applied processes, their associated operating costs were also determined in this paper.