A study on the growth response of Chlorella vulgaris in both indoor and outdoor conditions using a continuous vertical- column photobioreactor
Date
10-2010
Degree
Bachelor of Science in Chemical Engineering
College
College of Engineering and Agro-Industrial Technology (CEAT)
Adviser/Committee Chair
Rex B. Demafelis
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Abstract
The continuous operation of the photobioreactor designed and fabricated by Arinduque (2009) for the cultivation of Chlorella vulgaris was studied. Varying the volumetric flowrate of the feed and of harvesting stream affected the optical density, as well as biomass concentration. The reactors were taken outside to be exposed to diurnal cycles and observations on the response of the algae were noted. By decreasing the flow rates of both the feed and of the harvesting stream, biomass concentrations increased significantly. The occurrence of photoinhibition and the resulting decrease in biomass concentration can be attributed to high temperature and high light intensities experienced outdoors during the day. The addition of a net was done to reduce light intensity received by the photobioreactor, facilitating the acclimation and recovery of the algal culture. Night time also hindered the growth of the algae. Towards the end of the experiment, the cloudy weather reduced algal development. In general, however, acclimation and recovery of the algae were achieved.
Language
English
LC Subject
Fuel, Chlorella vulgaris
Location
UPLB College of Engineering and Agro-Industrial Technology (CEAT)
Call Number
LG 993 2010 E62 S26
Recommended Citation
Santos, Jose Paulo A., "A study on the growth response of Chlorella vulgaris in both indoor and outdoor conditions using a continuous vertical- column photobioreactor" (2010). Undergraduate Theses. 1146.
https://www.ukdr.uplb.edu.ph/etd-undergrad/1146
Document Type
Thesis