ITEMS

modern scholarly publishers in the finest tradition

Journals

	Search

International Journal on Algae

ISSN for PRINT: 1521-9429

Institutional price:	$905.00
Issues per year:	4

Best Paper Award Selection - Editorial Board Site

2006, Volume8

108 pages

DOI: 10.1615/InterJAlgae.v8.i1

Issue price - $233.00

Effects of light illumination alteration on Chlorella vulgaris Buitenzorg's CO₂ fixation in bubble column photobioreactor

Anondho Wijanarko
Department of Chemical Engineering, University of Indonesia, Kampus Universitas Indonesia, 16424 Depok, Indonesia

Dianursanti
Department of Chemical Engineering, University of Indonesia, Kampus Universitas Indonesia, 16424 Depok, Indonesia

Heidi
Department of Chemical Engineering, University of Indonesia, Kampus Universitas Indonesia, 16424 Depok, Indonesia

Roekmijati Widaningroem Soemantojo
Department of Chemical Engineering, University of Indonesia, Kampus Universitas Indonesia, 16424 Depok, Indonesia

Kazuhisa Ohtaguchi
Department of Chemical Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro Ku, 152 Tokyo, Japan

ABSTRACT

Cultivation of Chlorella vulgaris Buitenzorg with alteration of light illumination using a maximum carbon dioxide transfer rate (CTR_max) base curve successfully enhanced the CTR value up to 1.74 times compared to alteration of light illumination with a growth base curve. This research produced a CTR average value of 28.6 g/dm³·h. A previous research produced a CTR average value of 16.4 g/dm³·h. Both cultivations were operated under the follow conditions: T = 29 °C, P = 1 Atm, U_G = 2.4 m/h, CO₂ = 10%; Beneck medium; 1 dm³ Bubble Column Photo bioreactor; and illumination source by a Phillip Halogen Lamp 20W /12V/ 50Hz for maximization illumination up to 50 klx. During the cultivation in this research biomass was relatively lower than in the previous research, provided that the light intensity used also narrower than the light intensity range of maximum biomass production.