水体富营养化防治对污水磷排放提出了日益严格的要求,发展稳定高效的污水深度除磷技术成为当前研究的热点。吸附法因稳定高效且具有较好的磷回收潜力,在深度除磷领域备受关注。镧基吸附材料凭借镧元素独特的电子层结构及其与磷酸盐的强配位能力,在除磷领域表现出显著优势。系统综述了镧基吸附材料在污水深度除磷中的研究进展,重点探讨了镧基化合物的特性及其除磷性能,分析了不同镧基复合吸附材料的设计策略、结构调控方法及其对除磷性能的增强机制,总结了镧基材料除磷的主导机理,并对该类材料在实际应用中面临的挑战与发展前景进行了展望,以期为高性能镧基除磷材料的开发与工程应用提供理论支持与技术参考。
The prevention and control of water eutrophication have driven increasingly stringent standards for phosphorus discharge in wastewater.Developing stable and efficient technologies for advanced phosphorus removal has thus become a key research focus.Adsorption methods,owing to their stability,high efficiency,and potential for phosphorus recovery,have attracted significant attention.Lanthanum-based adsorbents,characterized by the unique electronic structure of lanthanum and its strong coordination with phosphate,exhibit notable advantages in phosphate removal.This paper systematically reviewed the research progress of lanthanum-based adsorbents for advanced phosphate removal in wastewater,emphasizing their properties and performance.It analyzed the design strategies,structural regulation approaches,and enhancement mechanisms of various lanthanum-based composites.The paper also summarized the dominant phosphate removal mechanisms and discussed the challenges and future prospects of these materials in practical applications,offering theoretical insights and technical guidance for the development and engineering application of high-performance lanthanum-based adsorbents.
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基金资助
国家自然科学基金面上项目(52070160);江苏省重点研发计划社会发展项目(BE2023751);江苏省产学研合作项目(BY20240261);扬州大学高端人才支持计划项目(2020)
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