A study on the growth response of green algae Chlorella vulgaris in both indoor and outdoor conditions using continuous externally- illuminated vertical-column draft-tube photobioreactor
Date
10-2010
Degree
Bachelor of Science in Chemical Engineering
College
College of Engineering and Agro-Industrial Technology (CEAT)
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Abstract
Continuous propagation of green algae Chlorella vulgaris using an externally-illuminated vertical-column draft-tube photobioreactor designed and fabricated by Redondo (2009) was undertaken. The continuous system of the photobioreactor was improved by installing a more efficient storage container for the sterilized media that can regulate low feed rate. A linear relationship between optical density of the microalgal culture at 425nm and cell dry weight generated by Jao (2010)was used for the experiment. Chemostat cultivation was utilized to study steady-state culture characteristics of Chlorella vulgaris for both indoor and outdoor propagation. During indoor propagation, biomass concentrations were expected to stabilize at 0.962535g/L, 1.286406g/L and 2.5721g/L for dilution rates of 0.2709 day⁻¹, 0.2027 day⁻¹ and 0.1014 dat ⁻¹, respectively. However, concentrations of Chlorella vulgaris in the harvest point were set off on the average of 1.1945468g/L for 2.86mL/min feed rate and 1.602834375g/L for 2.14mL/min feed rate. For outdoor propagation, an approximate steady state biomass concentration of 2.2439g/L was attained using a single feed rate of 2.14mL/min.
Language
English
Location
UPLB College of Engineering and Agro-Industrial Technology (CEAT)
Call Number
LG 993.5 2010 E62 M67
Recommended Citation
Morillo, Armando E., "A study on the growth response of green algae Chlorella vulgaris in both indoor and outdoor conditions using continuous externally- illuminated vertical-column draft-tube photobioreactor" (2010). Undergraduate Theses. 1004.
https://www.ukdr.uplb.edu.ph/etd-undergrad/1004
Document Type
Thesis