Addressing Algal Bloom and Other Ecological Issues Caused by Microalgae Biomass Conversion Technology

While biomass conversion technology for microalgae has provided economic value for humans, be they in the form of biofuels, food, animal feed, and chemicals, it may also bring environmental issues through an ecological phenomenon called algal bloom. An algal bloom is the growth of microalgae that occurs very quickly and excessively in waters. This phenomenon can cause environmental problems such as decreased water quality, eutrophication, and disruption of ecosystem balance. Algal bloom can produce poisons (toxins) that are harmful to humans, animals, and ecosystems. When an algal bloom occurs, food chains are disrupted and environmental quality declines. Algal bloom can also cause an increase in nutrients, especially nitrogen and phosphorus, in the waters. Along with this increase, there is a decrease in dissolved oxygen levels, resulting in the death of fish and other aquatic organisms. Therefore, controlling the amount of nutrients that enter the waters can help prevent eutrophication and algal bloom. Regular monitoring of water quality and the use of advanced technology to detect signs of impending algal blooms can help reduce their impact. In addition, it is necessary to develop and apply conversion technologies that are more environmentally friendly, for example, by using algae strains that are not invasive or have less impact on the environment. Research and education are needed to understand better the mechanism of algal bloom and its impact on ecosystems and to increase public awareness about the importance of sustainable water resource management. A multidisciplinary approach involving research, technology, and collaboration between government, industry, and society is necessary to overcome algal bloom and other ecological problems caused by microalgae biomass conversion technology.