摘要
磷是湖泊富营养化的重要限制性因子,其在沉积物-水界面的化学形态和迁移转化过程是调控湖泊富营养化问题的关键。文章综述了沉积物磷的化学形态、无机磷和有机磷连续提取方法及发展演变,分析和总结了各种提取方法的优缺点。最后详细介绍了当前较前沿的沉积物磷分析方法,如X射线吸收光谱、原子配对分布函数和核磁共振光谱等,总结了各项分析技术的特点和面临的挑战,指出各种分析技术应与磷连续分级提取方法有机结合,多种表征手段优势互补,以期为沉积物中磷素形态表征和转化机制研究提供有效的技术支撑。
Phosphorus is an important limiting factor for lake eutrophication,and its chemical form changes and migration and transformation processes at the interface between sediments and water are the keys to eutrophic lakes.In this paper,the chemical forms of sediment phosphorus,the sequential extraction procedure and development process of sediment inorganic phosphorus and organic phosphorus are reviewed.The advantages and disadvantages of various extraction methods are analyzed and summarized.Finally,the current frontier sediment phosphorus analysis methods such as X-ray absorption spectroscopy,atomic pairing distribution function and nuclear magnetic resonance spectroscopy are introduced in detail,and the characteristics and challenges of each analytical technique are summarized.The combination of sequential extraction procedure and various characterization methods can provide effective technical support for the study of phosphorus species and transformation mechanism in sediments.
作者
方庆军
唐亚东
王小明
徐一峰
彭来
吴振斌
张义
FANG Qingjun;TANG Yadong;WANG Xiaoming;XU Yifeng;PENG Lai;WU Zhenbin;ZHANG Yi(School of Resource&Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China;State Key Laboratory of Freshwater Ecology and Biotechnology,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,China;College of Resources and Environment,Huazhong Agricultural University,Wuhan 430070,China)
出处
《净水技术》
CAS
2023年第8期29-37,共9页
Water Purification Technology
基金
国家自然科学基金(51709254)
湖北省自然科学基金(2020CFB555)。
关键词
沉积物
磷形态
分级提取
磷形态表征
富营养化
sediment phosphorus species
sequential extraction procedure
phosphorus species characterization
eutrophication
