Principles and research progress of physical prevention and control technologies for algae in eutrophic water

• DOI: 10.1016/j.isci.2024.109990
• Publication Date: 2024-05-15T16:01:22Z
• Authors: Yuyao Wang; Yuanrong Zhu; Kuo Wang; Yidan Tan; Xiaojie Bing; Juan Jiang; Wen Fang; Liang Chen; Haiqing Liao
• Keywords: Science; Water resources engineering; Q; Environmental engineering; Review; 01 natural sciences; Environmental science; 0105 earth and related environmental sciences

The abnormal reproduction of algae in water worldwide is prominent the context human interference and global climate change. This study first thoroughly analyzed effects physical factors, such as light, temperature, hydrodynamics, operational strategies, on algal growth their mechanisms. Physical control techniques are safe have great potential for preventing blooms absence chemical reagents. focus was principles possible engineering applications shading, ultrasound, micro-current, ultraviolet (UV) technologies, controlling reproduction. shading can inhibit or weaken photosynthesis algae, thereby inhibiting growth. Ultrasound mainly affects physiological biochemical activities cells by destroying cell walls, air cells, active enzymes. Micro-currents destroy structure through direct indirect oxidation, leading to death. UV irradiation damage DNA, causing organisms be unable reproduce die directly. article comprehensively summarizes analyzes advantages prevention technologies providing a scientific basis future research. In future, attempts will made toward appropriately utilizing various blooms. establishment an intelligent, comprehensive system achieve environmentally friendly, economical, effective South-to-North Water Diversion Project China, importance specific waters.