Performance evaluation of SBR treatment for nitrogen removal from tannery wastewater

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 t...

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Bibliographic Details
Published in:Water science and technology 2006-01, Vol.53 (12), p.275-284
Main Authors: Murat, S, Insel, G, Artan, N, Orhon, D
Format: Article
Language:English
Subjects:
Aeration
Age
Computer simulation
Evaluation
Industrial Waste
Modelling
Models, Chemical
Nitrogen
Nitrogen - analysis
Nitrogen compounds
Nitrogen removal
Profiles
Removal
Sewage - chemistry
Sludge
Tanning
Temperature
Textile industry wastewaters
Wastewater
Wastewater treatment
Water Purification - instrumentation
Water Purification - methods
Water Purification - standards
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Summary: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%.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.2006.430