RT journal article
T1 Growth Kinetics and Nutrient Uptake of Microalgae in Urban Wastewaters with Different Treatment Levels
A1 García-Gozalbes, Cesar Carlos
A1 Arbib, Zouhayr
A1 Perales Vargas-Machuca, José Antonio
A2 Tecnologías del Medio Ambiente
K1 Urban wastewater
K1 nutrient removal
K1 microalgae
K1 photo-bioreactor
K1 kinetic model
AB The main objective of this work was to study the speed of growth and nitrogen and phosphorus uptake in a bloom of cultured microalgae in urban wastewater receiving different levels and types of treatment. To this end, microalgae were cultured in duplicate with discontinuity under controlled temperature, light and aeration conditions. Four test media were used consisting of four wastewater effluents: (1) pretreatment, (2) secondary clarifier, (3) UASB bioreactor (Upflow Anaerobic Sludge Blanket) and (4) mixture of UASB and secondary wastewater. All were obtained from the same urban wastewater treatment station. Verhulst and Photobiotreatment models were used to analyze the results. The study found different temporal evolutions of the biomass concentration and total dissolved N and P with the different media tested. Productivity was greater in tests with water from the UASB reactor (0.094 g SS l(-1) d(-1)). In this culture medium, the speed at which nitrogen was removed was similar to the rest of the wastewater tested while phosphorus removal was slower than the other media studied.
YR 2015
FD 2015
LK http://hdl.handle.net/10498/19683
UL http://hdl.handle.net/10498/19683
LA spa
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026