PDF(Pubmed)
Abstract：
The abnormal reproduction of algae in water worldwide is prominent in the context of human interference and global climate change. This study first thoroughly analyzed the effects of physical factors, such as light, temperature, hydrodynamics, and operational strategies, on algal growth and their mechanisms. Physical control techniques are safe and have great potential for preventing abnormal algal blooms in the absence of chemical reagents. The focus was on the principles and possible engineering applications of physical shading, ultrasound, micro-current, and ultraviolet (UV) technologies, in controlling abnormal algal reproduction. Physical shading can inhibit or weaken photosynthesis in algae, thereby inhibiting their growth. Ultrasound mainly affects the physiological and biochemical activities of cells by destroying the cell walls, air cells, and active enzymes. Micro-currents destroy the algal cell structure through direct and indirect oxidation, leading to algal cell death. UV irradiation can damage DNA, causing organisms to be unable to reproduce or algal cells to die directly. This article comprehensively summarizes and analyzes the advantages of physical prevention and control technologies for the abnormal reproduction of algae, providing a scientific basis for future research. In the future, attempts will be made toward appropriately and comprehensively utilizing various physical technologies to control algal blooms. The establishment of an intelligent, comprehensive physical prevention and control system to achieve environmentally friendly, economical, and effective physical prevention and control of algae, such as the South-to-North Water Diversion Project in China, is of great importance for specific waters.
摘要：
在人类干扰和全球气候变化的背景下，全球水体中藻类的异常繁殖现象尤为突出。本研究首先深入分析了物理因素的影响,如光，温度,流体力学,和运营战略，藻类生长及其机制。物理控制技术是安全的，并且在不使用化学试剂的情况下具有预防异常藻华的巨大潜力。重点是物理阴影的原理和可能的工程应用，超声，微电流,和紫外线(UV)技术，控制藻类的异常繁殖。物理遮光可以抑制或削弱藻类的光合作用，从而抑制其生长。超声主要通过破坏细胞壁来影响细胞的生理生化活动,空气细胞，和活性酶。微电流通过直接和间接氧化破坏藻类细胞结构，导致藻类细胞死亡.紫外线照射会损伤DNA,导致生物体无法繁殖或藻类细胞直接死亡。本文全面总结和分析了藻类异常繁殖的物理防治技术的优势,为今后的研究提供科学依据。在未来,将尝试适当和全面地利用各种物理技术来控制藻华。建立一个智能，全面的物理预防和控制系统，以实现环保，经济,和有效的物理预防和控制藻类，例如中国的南水北调工程，对特定水域非常重要。
