Abstract：
:This study reports on the application of an innovative structured-bed reactor (FVR) as an alternative to conventional packed-bed reactors (PBRs) to treat high-strength solid-rich wastewaters. Using the FVR prevents solids from accumulating within the fixed-bed, while maintaining the advantages of the biomass immobilization. The long-term operation (330days) of a FVR and a PBR applied to sugarcane vinasse under increasing organic loads (2.4-18.0kgCODm-3day-1) was assessed, focusing on the impacts of the different media arrangements over the production and retention of biomass. Much higher organic matter degradation rates, as well as long-term operational stability and high conversion efficiencies (>80%) confirmed that the FVR performed better than the PBR. Despite the equivalent operating conditions, the biomass growth yield was different in both reactors, i.e., 0.095gVSSg-1COD (FVR) and 0.066gVSSg-1COD (PBR), indicating a clear control of the media arrangement over the biomass production in fixed-bed reactors.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
de Aquino S,Fuess LT,Pires ECdoi
10.1016/j.biortech.2017.03.120subject
Has Abstractpub_date
2017-07-01 00:00:00pages
219-228eissn
0960-8524issn
1873-2976pii
S0960-8524(17)30401-7journal_volume
235pub_type
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