ArticleOriginal scientific text

Title

Radiotracer investigations of municipal sewage treatment stations

Authors , , , , ,

Abstract

Tracer techniques, which are well-established methods in process dynamics studies in industry, were applied to investigate the dynamics of sewage treatment process. The concept of residence time distribution (RTD) was used to investigate the efficiency of the primary clarifier, aeration tank and secondary clarifier of a sewage treatment plant. Preliminary treatment and modeling of the tracer data was performed using the software DTS Pro Ver. 4.20. A big short - circuiting (by-passing) with a large volume of stagnant zones were found in the primary and secondary clarifiers, while no stagnant zone was detected in the aeration tank.

Keywords

wastewater treatment, residence time distribution, activated sludge, radiotracer
Pages:
57-61
Main language of publication
English
Published
2003
Exact and natural sciences