Performance evaluation of SBR treatment for nitrogen removal from tannery wastewater

MURAT S., Insel G., Artan N., ORHON D.

WATER SCIENCE AND TECHNOLOGY, cilt.53, sa.12, ss.275-284, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 53 Sayı: 12
  • Basım Tarihi: 2006
  • Doi Numarası: 10.2166/wst.2006.430
  • Dergi Adı: WATER SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Agricultural & Environmental Science Database, Analytical Abstracts, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chimica, Compendex, EMBASE, Environment Index, Geobase, MEDLINE, Pollution Abstracts, Public Affairs Index, Veterinary Science Database
  • Sayfa Sayıları: ss.275-284
  • Anahtar Kelimeler: characterisation, COD fractionation, modelling, nitrogen removal, sequencing batch reactor, sludge age, tannery wastewater, NITRIFICATION, SYSTEMS
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Performance of SBR treatment for nitrogen removal from tannery is evaluated for a wide range of wastewater temperature between 7 and 30 degrees C. A pilot-scale SBR unit fed with plain-settled wastewater is operated on site for this purpose. Effective nitrogen removal is sustained by adjustment of the sludge age from 28 to 5 days. Concentration profiles of nitrogen compounds within a selected complete SBR cycle during the steady state operation at different wastewater temperatures and sludge ages are evaluated by model simulation. System performance is also interpreted in terms of modeling and stoichiometric calculation. Additional nitrate loss was observed during aerobic period when the aeration intensity was reduced by the factor of 50%.