基于磁性氧化铁颗粒的雄安新区水域监测与治理策略的研究

Research on Water Environment Monitoring and Treatment Strategies Based on Magnetic Iron Oxide Particles in Xiong’an New Area

摘要: 作为雄安新区的生态核心，白洋淀肩负着稳定保持水质在III类及以上，构建蓝绿交织、清新明亮、水城共融生态格局的重要使命。当前，雄安水环境治理成效显著，但历史遗留的磁性金属污染仍具有隐蔽性强、易累积、难降解、可二次释放等特征，对底泥/水系统稳定、水生生态安全与居民健康构成长期风险。文章以雄安新区水域为研究对象，系统分析磁性金属污染物来源、赋存特征与治理难点，结合团队自主研发的花状磁性纳米复合材料与等离子体增强传感技术，构建“精准检测–高效吸附–磁分离回收”一体化治理体系，推动污染治理由被动处置向主动防控、分段治理向系统集成转变。研究可为白洋淀生态保护、历史遗留污染精准治理提供技术支撑，为华北地区同类河湖污染治理提供可复制、可推广的雄安方案，服务国家生态文明建设与区域高质量发展大局。

Abstract: As the ecological core of Xiong’an New Area, Baiyangdian bears the vital mission of consistently maintaining water quality steadily at Class III or above, and develop an ecological pattern characterized by interconnected blue and green spaces, a fresh and bright environment, and harmonious integration of water and city. Remarkable achievements have been made in the current water environment governance of Xiong’an, yet the legacy magnetic metal pollution features strong concealment, easy accumulation, poor biodegradability, and potential secondary release. It poses long-term risks to the stability of sediment-water systems, aquatic ecosystem safety, and residents’ health. Taking the waters of Xiong’an New Area as the research object, this paper systematically analyzes the sources, occurrence characteristics, and treatment challenges of magnetic metal pollutants. Combined with flower-like magnetic nanocomposites independently developed by our team and plasma-enhanced sensing technology, an integrated system of “precise detection, high-efficiency adsorption, and magnetic separation recovery” is constructed. This transforms pollution control from passive remediation to proactive prevention and control, and from segmented treatment to systematic integrated management. This research can provide technical support for the ecological protection of Baiyangdian and targeted remediation of legacy pollution, as well as a replicable and promotable Xiong’an model for the pollution control of similar rivers and lakes in North China. It serves the overall goals of national ecological civilization construction and high-quality regional development.