RT journal article
T1 Effect of ph control by means of flue gas addition on three different photo-bioreactors treating urban wastewater in long-term operation.
A1 Arbib, Zouhayr
A1 Ruiz González, Jesús
A1 Álvarez Díaz, Pablo David
A1 Garrido Pérez, Carmen
A1 Barragán Sánchez, Jesús
A1 Perales Vargas-Machuca, José Antonio
A2 Tecnologías del Medio Ambiente
K1 Wastewater
K1 High rate algal pond
K1 Carbonation sump injection
K1 Tubular photobioreactor
K1 Scenedesmus obliquus
AB Effect of pH control with flue gas has been studied in two high rate algal ponds (HRAPs), one with a carbonation sump station (HRAP + S), and a tubular airlift photobioreactor (TPBR) treating urban wastewater. Flue gas, from 1600 MW combined cycle plant, addition (4–5% volume CO2) not only increased biomass productivity but also improved efficiency of total nitrogen removal (TNRE) and total phosphorus removal (TPRE). The differences between the HRAP and HRAP + S were significant at all the flue gas injection flow rates tested. HRAP + S reached maximum TNRE, TPRE and biomass productivity (92.15 ± 1.45%, 95.10 ± 0.84% and 19.77 ± 0.38 g m−2 d−1, respectively) at a flow rate of 15 L min−1, while the HRAP reached similar productivity levels at 20 L min−1. TPBR showed an initial lower carbon limitation than HRAP and HRAP + S, but nevertheless a strong inhibition was observed in TPBR at the end of the test. Flue gas addition promotes the production of biomass with less nitrogen reserves and consequently with higher lipid content because of the nutrient limitation stress.
YR 2013
FD 2013
LK http://hdl.handle.net/10498/19676
UL http://hdl.handle.net/10498/19676
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 08-nov-2026