Executive Summary : | Microalgae biomass resources offer a promising alternative to fossil fuels due to their uncomplicated cellular structure. By altering the growth media composition, microalgae can adjust their lipid content, reducing or enhancing their biomass production. The production of biofuel from microalgae has advantages such as cultivation on marginal non-agricultural land, high lipid productivity, and the ability to bio-mitigate atmospheric CO2 and flue gases. Cultivation of algae for wastewater treatment by bioremediation techniques can control environmental pollution by removing phosphorus, nitrogen, and heavy metals. By combining algae cultivation and wastewater treatment, a lower concentration of nitrogen and phosphorous in the effluent can be achieved. Nutrients in wastewater treatment sludge can be treated and recycled to produce algal biomass and oils, making the process environmentally friendly. Microalgae can also be used to generate various biofuels, such as biohydrogen, bioethanol, biomethane, liquid oil, and biodiesel. Nano-catalysts, which have high catalytic activity, specific surface area, good rigidity, and resistance to saponification, are more efficient than heterogeneous catalysts. The North East of India, known as the treasure hub of diverse flora and fauna, is a prime location for bioprospecting and biofuel production. The favorable climatic conditions and high humidity in this region support the growth of freshwater microalgae, making them an attractive source for biofuel production and chemical valorization. |