م.م نور الهدى حاكم<br />With the increasing concerns about climate change and the need to <br />transition to renewable energy sources, finding innovative ways to capture <br />and utilize CO2 has become paramount. Algae, due to their rapid growth <br />and ability to photo synthetically convert CO2 into biomass, have emerged <br />as a potential solution for sustainable bioenergy production. This study <br />aims to shed light on the potential of algae-based bioenergy and its role in <br />CO2 utilization.<br />CO2 is collected using either method directly from industrial processes that <br />generate high concentrations of CO2 emissions, such as power plants, <br />cement factories, and steel mills. This process, known as carbon capture <br />and storage (CCS), involves capturing the CO2 before it is released into <br />the atmosphere. Or by Direct air capture (DAC) involves capturing CO2<br />directly from ambient air. Large-scale DAC systems use chemical sorbents <br />or absorbents to selectively capture CO2 from the air.<br />DAC METHOD<br />Instead of storing it, it is used to produce sustainable bioenergy through the <br />cultivation of algae. biomass production, with lipid content being a key <br />parameter for biofuel potential. Optimal CO2 concentrations, light <br />conditions, and nutrient availability were identified to maximize algae <br />growth and lipid accumulation<br />Benefiting from algae is not limited to biofuel energy only, but also <br />includes:<br />- Food and Nutritional Supplements: Certain species of algae, such as <br />spirulina and chlorella, are rich in nutrients and can be consumed as <br />food or used as ingredients in nutritional supplements. These algae <br />contain essential amino acids, vitamins, minerals, and antioxidants, <br />making them a valuable source of nutrition. Algae oil can also be <br />extracted and used in food products as a source of healthy omega-3 <br />fatty acids.<br />- Pharmaceuticals and Cosmetics: Algae and algae-derived <br />compounds have shown potential in the pharmaceutical and <br />cosmetic industries.<br />- Bioplastics: Algae-based bioplastics are being explored as an <br />alternative to traditional petroleum-based plastics.<br />- Aquaculture and Animal Feed: Algae can serve as a valuable feed <br />source for aquaculture and animal farming<br />- Wastewater Treatment and Bio-Remediation: Algae have the ability <br />to absorb and remove nutrients, heavy metals, and other <br />contaminants from wastewater