Activated sludge process : effects of feed concentration on effluent COD

The concentration of substrates in the feed to an activated sludge process was found to exert a significant effect upon its effluent COD. A mathematical model was proposed to explain this effect and was successful in correlating the data of this study. The model was based on the hypothesis that COD measures both substrate and product concentrations. It was found that an optimum sludge age exists for achieving minimum effluent COD. At sludge ages longer than the optimum, effluent COD increased due to product formation; at shorter sludge ages the effluent COD increased due to an increased concentration of degradable substrate.

Grantor dc:publisher.institution

Department of Chemical Engineering

Year dc:date.issued

1977

Author dc:creator

• Baskir, Cyril Isadore

Advisor dc:contributor.advisor

• Hansford, Geoffrey Spearing

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/17884

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/17884