Page 87 - Energy from Toxic Organic Waste for Heat and Power Generation

Toxic Waste From Biodiesel Production Industries and Its Utilization 73

Fig. 6.1 Photograph of microalgae.

CO 2
Effluent
(nutrients)
Glycerin
Biodiesel
Artificial or Oil Residual
natural light biomass
Biomass
Bio-oil
Biohydrogen

Biomass Bioethanol
separation
Inoculum Biogas

Fertilizers
Effluent (disposal)
Fig. 6.2 Layout of energy production from microalgae.

Microalgae has been considered as a potential and sustainable source of
biomolecules with application in several industries. In addition to oils and
sugars for the production of biofuels, proteins—which can reach 70% by
weight in algae—can be used for the preparation of feed and food and/
or as supplementary ingredients. Several investigations have suggested that
proteins recovered from algae display comparable or superior functionality
(foaming, emulsification, surfactant, solubility, gelation) as other commercial
protein preparations. However, in order to realize the application of algae
proteins for food or feed, mild processing conditions must be ensured and