ABSTRACT
Soil erosion, misuse of chemical fertilizers, and biodiversity loss are all important issues that threaten contemporary agriculture’s long-term viability. The combination of algae-based wastewater treatment and algal bio-fertilizer production has gained popularity in recent years due to the benefits of algae biotechnology in terms of nutrient recovery and soil improvement. This chapter highlights the advances made in the areas of biomass generation by algae growth in wastewater and the application of algal bio-fertilizers. Slow-release bio-fertilizers, nitrogen-fixing cyanobacteria, and liquid bio-fertilizers are among the three types of algal bio-fertilizers discussed, all of which have been thoroughly researched and employed in agriculture.
Keywords: Bio-fertilizer, algae, wastewater, soil, nutrient
