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- Title
Enlèvement de la matière organique par les étangs aérés facultatifs: Facteurs influençant la performance.
- Authors
TREMBLAY, MÉLISSA; ALIBERT, BERTRAND; DESJARDINS, MARC-ANDRÉ; LAFOND, ROBERT; COMEAU, YVES
- Abstract
Facultative aerated lagoons are very effective in removing soluble organic pollution as early as in the first lagoons. With the implementation of the ROMAEU, total suspended solids (TSS) discharge requirements were added. The commonly accepted rule is that if the effluent from a facility consisting in facultative aerated lagoons meets the 5-day carbonaceous biochemical oxygen demand (CBOD5) discharge requirement, it should also meet the TSS requirement. It turns out, however, that this is not always the case. Compliance with the discharge requirement for this parameter requires managing particulate matter that consumes some CBOD5. In the context of this study, two equations were developed to better characterize the effluent of facultative aerated lagoons and to estimate the effluent TSS concentration. Analyzes conducted showed that the requirement for a hydraulic retention time of at least 12 days downstream a “complete mixed†aerated lagoon or a moving bed bioreactor could be reconsidered.
- Subjects
TOTAL suspended solids; PARTICULATE matter; RF values (Chromatography); BIOCHEMICAL oxygen demand; LAGOONS; POLLUTION
- Publication
Vecteur Environnement, 2020, Vol 53, Issue 3, p46
- ISSN
1200-670X
- Publication type
Article