Microalgae can produce not only bioenergy (e.g. bioethanol, biodiesel, biogas, and hydrogen) but also other value products (e.g.
paraffin, olefin, glycerol, protein, anti-oxidant, pigment, plastic, etc.). To reduce the production cost, we could utilize the waste
water streams as the growth medium. Microalgae cultivation can also be integrated with biogas system from agricultural waste
waters (e.g. tapioca waste, palm oil mill effluent, and other agricultural wastes).