Department of Hydrobiology
Algae like liquid energy

The growing problem of the world's high dependence on fossil energy sources as well as the need to reduce the related environmental damages make it increasingly necessary to use renewable resources for meeting our energy demand. Algae's potential as a feedstock is dramatically growing in the biofuel market. Microalgae have many desirable attributes as energy producers (based on Um and Kim 2009):

  • algae is the most promising non-food source of biofuels,
  • algae has a simple cellular structure,
  • it does not require a large area of land for cultivation, possesses a high growth rate and accumulates a satisfactory amount of lipid for bio-diesel production.
  • some species have lipid-rich composition (40-80% in dry weight),
  • a rapid reproduction rate,
  • algae can grow in fresh and salt water and harsh conditions,
  • algae thrive on carbon dioxide from gas- and coal-fired power plants,
  • algae biofuel contains no sulfur, is non-toxic and highly biodegradable,
  • microalgae produce 15-300 times more oil for biodiesel production than traditional crops on an area basis.

    CO2 emission decrease by algae

    Carbon-dioxide is one of the most important greenhouse gases in conjunction with methane, nitrous oxide, ozone and chlorofluorocarbons; even so carbon-dioxide is essential for photosynthesis. Increasing the concentration of carbon-dioxide the growth rate of algae cells increases as well. This ability of algae provides facilities to use algal cells for decreasing the CO2 emission.