Abstract:
:A laboratory-scale flat panel photobioreactor was operated for the continuous growth of Scenedesmus obliquus and consequent removal of nutrients in wastewater. This study develops a simple model by which biomass values in continuous operation can be predicted from kinetic growth parameters obtained from a shorter batch experiment. Based on this study, biomass concentrations and productivities in continuous operation can be successfully predicted as a function of the specific hydraulic retention time (HRT) assumed. Considerable biomass production and nutrient uptake from wastewater were achieved in the experiment. Optimum operating conditions for the reactor depend on the particular objective: the maximization of biomass production and carbon dioxide biofixation involves a HRT of 2 μ(-1) (specific growth rate), whereas efficient nutrient removal involves a HRT as close as possible to μ(-1) (as long as discharges comply fully with the parameters set); alternatively biomass intended for biodiesel or biogas production would involve a HRT > 2 μ(-1).
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Ruiz J,Álvarez-Díaz PD,Arbib Z,Garrido-Pérez C,Barragán J,Perales JAdoi
10.1016/j.biortech.2012.09.103subject
Has Abstractpub_date
2013-01-01 00:00:00pages
456-63eissn
0960-8524issn
1873-2976pii
S0960-8524(12)01453-8journal_volume
127pub_type
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