Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6302150 | Ecological Engineering | 2014 | 8 Pages |
Abstract
The moving bed biofilm reactor-membrane bioreactor (MBBR-MBR) is a novel solution to conventional processes. In this study, a conventional membrane bioreactor (MBR), a hybrid MBBR-MBR and a pure MBBR-MBR were compared. The hybrid MBBR-MBR contained suspended and attached biomass, while the pure MBBR-MBR mainly had attached biomass. The reactors operated with a hydraulic retention time of 9.5 h. The pure MBBR-MBR had the highest efficiency of nitrogen removal with a value of 71.91 ± 16.04%. As a whole, the pure MBBR-MBR showed the best performance from the point of view of the kinetics of the heterotrophic and autotrophic biomass with values of μm,H = 0.018 hâ1, μm,A = 0.751 hâ1, KM = 2.679 mg O2 Lâ1 and KNH = 2.191 mg N Lâ1. The presence of the attached biomass improved the organic matter and nitrogen removal in a pure MBBR-MBR system.
Keywords
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Authors
J.C. Leyva-DÃaz, J. MartÃn-Pascual, M.M. MuñÃo, J. González-López, E. Hontoria, J.M. Poyatos,