Journal of Pure and Applied MicrobiologyVol. 9 No. Special Edition Nov. 2015

Carbon Dioxide Sequestration by Locally Isolated and Commercial Strain of Microalgae

Z. Minhat1*, M.S.A. Rahaman1, M.S. Takriff2 and N. Tan Kofli1

1Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia. 2Research Center for Sustainable Process Technology, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia.

Received on 05 September 2015 and accepted on 16 November 2015

 

ABSTRACT

The main objective of this research is to investigate the growth rates and CO2 sequestration potential of local and commercial strains of microalgae. Two local strains used were Chlorella Sorokiniana (UKM 2) and Characium sp. (UKM 1), both isolated from Palm Oil Mill Effluent (POME) and two commercial strains used were Chlorella Vulgaris and Ankistrodesmus sp.. The highest performance showed by C.Vulgaris where its growth rates was ?m=0.47d-1 followed by Ankistrodesmus sp. ?m=0.43d-1, C. sorokiniana ?m=0.4d-1 and Characium sp?m=0.37-1. Based on the yield, Ankistrodesmus sp. had highest yield which is 3g/L, followed by C.Vulgaris 2.72g/L, C.Sorokiniana 2.52g/L and Characium sp. 2.27g/L. CO2 sequestration rate was calculated based on the microalgae?s yield where Ankistrodesmus sp. showed highest CO2 sequestration, at 5.64g/L.

Keywords : Locally isolated strain, commercial strain, growth profile, carbon dioxide sequestration.