Fate of inert COD fractions in two-stage biological treatment of a strong wastewater


Eremektar G. , Babuna F. F. , Ince O.

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, cilt.34, sa.6, ss.1329-1340, 1999 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 34 Konu: 6
  • Basım Tarihi: 1999
  • Doi Numarası: 10.1080/10934529909376899
  • Dergi Adı: JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
  • Sayfa Sayıları: ss.1329-1340

Özet

In this study, the effluent of an alcohol distillery after passing through a chemical treatment is characterized in terms of its inert COD fractions and the changes likely to be induced by two-stage biological treatment on the magnitude of these fractions are observed. The experimentally obtained results indicated that the anaerobic treatment gives lower soluble inert COD fractions than a corresponding aerobic treatment for the investigated wastewater. Therefore, the preference of anaerobic treatment instead of an aerobic one as the first stage is ascertained. The anaerobic first stage has a COD removal efficiency of 96 % whereas with a subsequent aerobic treatment 79 % removal can be achieved on the basis of the stoichiometry of the inert GOD. The anaerobic fill-scale plant performance of 80 % can be improved up to 96 %.