滨海地下水交互带中的胶体运移行为研究综述
发布时间：2018-09-14 11:30
【摘要】：在分析国内外已有研究的基础上,综述滨海地下水交互过程中的胶体运移规律,重点阐述咸淡水驱替作用下胶体的宏观运移规律和微观作用机理。胶体在滨海地下水交互中可成为联系海-陆相的物质传输纽带,其运移行为主要受地下水水化学参数波动影响,受控于胶体类型与数量、表面电位及地下水p H、离子强度等因素,具有水动力、水环境多因子联合作用的特征,并在含水层中具有空间堵塞和团聚体结构改变的不确定性。未来关于滨海地下水交互带中的胶体行为研究应重视基础勘察,考虑胶体群体效应,结合滨海含水层对水动力、水化学条件的敏感性,研究胶体在多相体系中胶体运移的不确定性及其对污染物的协同运移作用,为滨海资源化研究构建统一分析体系和预测机制。
[Abstract]:Based on the analysis of the existing researches at home and abroad, the law of colloidal migration in the process of coastal groundwater interaction is summarized, with emphasis on the macro-migration and microscopic mechanism of colloids under the displacement of salt and fresh water. Colloid can become the material transport link between sea and land in the interaction of coastal groundwater. The migration behavior of colloid is mainly affected by the fluctuation of hydrochemical parameters of groundwater and controlled by the type and quantity of colloid. The surface potential, groundwater pH, ionic strength and other factors have the characteristics of hydrodynamic, multi-factor interaction in water environment, and the uncertainty of spatial blockage and agglomeration structure change in the aquifer. In the future study on colloid behavior in coastal groundwater interaction zone, we should pay attention to basic investigation, consider colloid colony effect, and consider the sensitivity of coastal aquifer to hydrodynamic and hydrochemical conditions. The uncertainty of colloid migration in multiphase system and its synergistic transport to pollutants were studied in order to construct a unified analysis system and prediction mechanism for coastal resource study.
【作者单位】： 同济大学土木工程学院水利工程系;Department
【基金】：国家自然科学基金资助项目(41372240) 同济大学研究生国际交流基金资助项目(2016020008)~~
【分类号】：P641.6
[Abstract]:Based on the analysis of the existing researches at home and abroad, the law of colloidal migration in the process of coastal groundwater interaction is summarized, with emphasis on the macro-migration and microscopic mechanism of colloids under the displacement of salt and fresh water. Colloid can become the material transport link between sea and land in the interaction of coastal groundwater. The migration behavior of colloid is mainly affected by the fluctuation of hydrochemical parameters of groundwater and controlled by the type and quantity of colloid. The surface potential, groundwater pH, ionic strength and other factors have the characteristics of hydrodynamic, multi-factor interaction in water environment, and the uncertainty of spatial blockage and agglomeration structure change in the aquifer. In the future study on colloid behavior in coastal groundwater interaction zone, we should pay attention to basic investigation, consider colloid colony effect, and consider the sensitivity of coastal aquifer to hydrodynamic and hydrochemical conditions. The uncertainty of colloid migration in multiphase system and its synergistic transport to pollutants were studied in order to construct a unified analysis system and prediction mechanism for coastal resource study.
【作者单位】： 同济大学土木工程学院水利工程系;Department
【基金】：国家自然科学基金资助项目(41372240) 同济大学研究生国际交流基金资助项目(2016020008)~~
【分类号】：P641.6
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