Abstract:
We are using fossil fuels as the main source of energy for a long time. As fossil fuels are harmful for its greater C2 emission and are also a limited source of energy they can’t be used as a main source of energy forever . We need to find an alternate source of energy that can be used instead of fossil fuels . That is why people are tending more towards a renewable source of energy which is environment friendly as well as easy to extract . Biofuel can be a perfect alternate in this case . There are various sources of biofuel such as microalgae, corn, biogas, vegetable oil, ethanol etc. Above all the sources of biofuel , the fuel that is produced from microalgae is the most useful one , as it is easy to produce and microalgae has the ability to mitigate CO2 emission. They can be produced in waste water and they can also be produced in large scale in pond .So they have the potential for application in producing biofuels . For that purpose in this study the selection of preferable microalgae species has to be done at first .A low cost photobioreactor setup was created for the culture medium. Then providing appropriate culture medium in the photobioreactor a definite amount of microalgae biomass was produced .The rate of change of growth rate using different microalgae species is shown in this paper . Air and CO2 were separately used to compare the growth rate of the microalgae species in each case .
