Process on emergency treatment technology of cyanobacterial blooms in Lacustrine/reservoir water sources
CAI Qi-jia, MA Qian-li, GOU Ting, LIANG Rong-chang, CHEN Si-li, HUANG Da-wei, ZHAO Rui, FENG Yan-hui, YAO Ling-ai
State Key Laboratory of Water Environment Simulation and Pollution Control, South China Institute of Environmental Sciences, Ministry of Ecology and Environment (Institute of Ecological and Environmental Emergency Research, Ministry of Ecology and Environment), Guangzhou 510530, China
Abstract：The tolerance to cyanobacterial blooms and the need for ecological safety vary spatially across different areas of lake and reservoir water sources (e.g., intake areas, lake/reservoir zones, bay areas), which requires more precise selection and application of emergency response technologies. Currently, there is a wide range of emergency response technologies available for cyanobacterial blooms, but selecting efficient and safe technologies that are tailored to the specific scenarios of lake and reservoir water sources presents a technical challenge for emergency responders. This study first details the theoretical foundations of current emergency response technologies for cyanobacterial blooms, focusing on three main aspects: rapid algae-water separation, environmental factor regulation, and physiological growth inhibition, providing a theoretical basis for technology application. Secondly, based on spatial heterogeneity, the study categorizes different treatment areas within lake and reservoir water sources: interception, skimming, filtration, and clear water dispatching for highly sensitive intake areas; aeration, pressurized algae control, ultrasonic, flotation, and magnetic separation technologies for lake/reservoir zones; and flocculation, modified clay, chemical oxidation, photocatalytic oxidation, allelopathic plants, and microbial algae control for bay areas. Finally, the study comprehensively compares the technical requirements, advantages, duration of effectiveness, and application costs of these technologies in different water areas, providing a reference for the selection and development of emergency response technologies for cyanobacterial blooms in lake and reservoir water sources.
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