Abstract:
:The objectives of this study are to find the robust strains for the centrate cultivation system and to evaluate the effect of environmental factors including light intensity, light-dark cycle, and exogenous CO2 concentration on biomass accumulation, wastewater nutrient removal and biodiesel production. The results showed that all 14 algae strains from the genus of Chlorella, Haematococcus, Scenedesmus, Chlamydomonas, and Chloroccum were able to grow on centrate. The highest net biomass accumulation (2.01 g/L) was observed with Chlorella kessleri followed by Chlorella protothecoides (1.31 g/L), and both of them were proved to be capable of mixotrophic growth when cultivated on centrate. Environmental factors had significant effect on algal biomass accumulation, wastewater nutrients removal and biodiesel production. Higher light intensity and exogenous CO2 concentration with longer lighting period promote biomass accumulation, biodiesel production, as well as the removal of chemical oxygen demand and nitrogen, while, lower exogenous CO2 concentration promotes phosphorus removal.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Li Y,Zhou W,Hu B,Min M,Chen P,Ruan RRdoi
10.1016/j.biortech.2011.09.064subject
Has Abstractpub_date
2011-12-01 00:00:00pages
10861-7issue
23eissn
0960-8524issn
1873-2976pii
S0960-8524(11)01352-6journal_volume
102pub_type
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