6533b7d3fe1ef96bd1260201

RESEARCH PRODUCT

Behavior of mixed Chlorophyceae cultures under prolonged dark exposure. Respiration rate modeling

José FerrerA. Ruiz-martinezAurora SecoJ. Serralta

subject

0106 biological sciencesEnvironmental EngineeringChlorophyceae010501 environmental sciencesManagement Monitoring Policy and Law01 natural sciencesRespirometry010608 biotechnologyLong periodBotanyRespirationMicroalgaeTECNOLOGIA DEL MEDIO AMBIENTE0105 earth and related environmental sciencesNature and Landscape ConservationbiologyRespirationModelingOxygen evolutionDecaybiology.organism_classificationOxygen uptakeEnvironmental chemistryDarknessRespiration rate

description

[EN] The behavior of three different microalgal cultures, when exposed for a long period (>48 h) to dark conditions, was studied with a methodology based on respirometry. The cultures were transferred to darkness and the oxygen evolution in the reactors was monitored after successive air injections. Several sequential oxygen uptake rates were thus calculated and a respiration constant, assuming a first order decay of a fraction of the biomass, was obtained by calibration. Initial specific oxygen uptake rates were in the range of 0.9 5.1 mg O2 g TSS−1 h−1 and dark respiration constants in the range of 0.005 0.018 h−1.

yearjournalcountryeditionlanguage
2016-06-01Ecological Engineering
https://doi.org/10.1016/j.ecoleng.2016.02.025