波浪场中有机磷在多相微界面迁移转化过程与关键控制因子

项目名称： 波浪场中有机磷在多相微界面迁移转化过程与关键控制因子

项目编号： No.51309032

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 水利工程

项目作者： 孙士权

作者单位： 长沙理工大学

项目金额： 25万元

中文摘要： 有机磷是湖泊水体和沉积物重要组成部分，可通过物化及生物过程迁移转化为生物可利用性营养盐，是磷元素地球化学循环和生命过程中重要环节之一。既有磷循环理论与技术虽取得重要进展，但限于有机磷组分表征问题，无法完全解释当前水体磷元素的生命循环过程，难以对富营养化水体防治提供全面的理论支撑。本课题采用分子分离分析技术和球形分子印迹结构识别方法，对沉积物中有机磷组分进行分类、分离、提取和识别，建立基于有机磷结构和性质的表征体系。依据有机磷的综合表征，在波浪槽中利用衰减全反射傅里叶变换红外线光谱研究微界面中有机磷的水解、降解和光解过程与关键控制因子，探讨铜绿微囊藻对有机磷吸收代谢关键控制因素，进而阐明有机磷组分在多相微界面迁移转化的主要过程和关键控制因子，揭示波浪场中有机磷来源、转化和归宿规律，完善磷元素循环理论，深化对富营养化控制与治理途径的理解和认识。

中文关键词： 波浪；有机磷；迁移转化；磷循环；富营养化

英文摘要： Organic phosphorus, as the important component of lake water and sediment, which can be transformed into the bioavailable nutrients in the physicochemical and biological process, plays an important role in the phosphorus biogeochemistry cycle and life course. Although the phosphorus cycle theory and technology has made a good progress in the past years, it cannot completely interpret the whole life process of phosphorus nutrients in water at present limited to characterization problem of organic phosphorus components, which make it difficult to provide strong theory support for the practice of eutrophication treatment. Organic phosphorus of the lake sediment will be classified, separated and extracted by molecular isolation and analysis techniques & molecular imprinting technology, the characterization system of organic phosphorus can be established on its properties and structure. Based on the characterization of organic phosphorus components, its hydrolyzation, degradation, photolysis and corresponding key factors on micro-interface will be studied in the ecological wave tank by attenuated total reflection Fourier transform infrared (ATR-FT-IR) spectroscopy. The key factors of Microcysis aeruginosa absorbing and metabolizing organic phosphorus and the characteristics of bioavailability of organic phosphorus to

英文关键词： waves；organic phosphorus；The migration and transformation mechanism；phosphorus cycle；eutrophication