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Sequential adaptation of Nannochloropsis gaditana to table olive processing water

AuthorsSerrano, Antonio; Contreras, Carmen; Ruiz-Filippi, Gonzalo; Borja Padilla, Rafael ; Fermoso, Fernando G.
KeywordsMicroalgae biomass
Sequential adaptation
Table olive processing water
Wastewater valorization
Issue Date25-May-2017
PublisherTaylor & Francis
CitationJournal of Environmental Science and Health - Part A 52 (10: 986-991 (2017)
AbstractThe main objective of this study was to evaluate the suitability of Nannochloropsis gaditana to grow by sequential adaptation to TOPW (Table olive processing water) at increased substrate concentrations (10–80%). Sequential adaptation allows growing Nannochloropsis gaditana up to 80% TOPW, although the maximum microalgae biomass productions were achieved for percentages of 20–40%, i.e. 0.308 ± 0.005 g VSS (Volatile Suspended Solids)/L. In all growth experiments, proteins were the majority compound in the grown microalgae biomass (0.44 ± 0.05 g/g VSS), whereas phenols were retained up to a mean concentration of 12.1 ± 1.9 mg total phenols/g VSS. The highest microalgae biomass production rate at rate of 80% TOPW took place in the first two days when most nutrients were also removed. Average removal efficiencies at this percentage of TOPW were 69.1%, 50.9%, 54.3% and 71.8% for total organic carbon, total soluble nitrogen, phosphate and total phenols, respectively. Sequential adaptation can ensure the obtaining of a sustainable microalgae culture as a treatment method for TOPW.
Description24 Páginas; 1 Tabla; 6 Figuras
Publisher version (URL)http://dx.doi.org/10.1080/10934529.2017.1324711
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