胶体在地下水中的环境行为特征及其研究方法探讨
发布时间：2018-09-07 11:26
【摘要】：在收集查阅国内外已有研究资料的基础上,对地下水中胶体稳定性、迁移机制以及模拟预测方法进行了详细归纳和总结。研究表明,胶体稳定性主要受自身理化性质和水文地球化学条件的影响,其受控于胶体粒径、形态、电势电位以及地下水的pH、离子强度等条件。胶体在多孔介质中的迁移机制主要表现为胶体沉积和形变阻塞,其中针对胶体稳定性的差异性,胶体沉积过程分别表现为表面封阻和过滤熟化。目前有关胶体在地下水中迁移的模拟技术已发展得日益成熟,但结合多孔介质非均质性和胶体化学性质非均质性的数学模型还需进一步探讨。
[Abstract]:On the basis of collecting and consulting the existing research data at home and abroad, the colloid stability, migration mechanism and simulation prediction methods in groundwater are summarized and summarized in detail. The results show that the stability of colloid is mainly affected by its physical and chemical properties and hydrogeochemical conditions. It is controlled by the colloid particle size, morphology, potential and pH, ionic strength of groundwater. The migration mechanisms of colloids in porous media are mainly colloid deposition and deformation blocking. According to the difference of colloid stability colloid deposition process is characterized by surface blocking and filtration ripening respectively. At present, the simulation technology of colloid migration in groundwater has been developed increasingly mature, but the mathematical model combining the heterogeneity of porous media and the heterogeneity of colloid chemical properties needs to be further discussed.
【作者单位】： 吉林大学地下水资源与环境教育部重点实验室;吉林大学环境与资源学院;
【基金】：国家自然科学基金资助项目(41472215)~~
【分类号】：X143
，
本文编号：2228121
[Abstract]:On the basis of collecting and consulting the existing research data at home and abroad, the colloid stability, migration mechanism and simulation prediction methods in groundwater are summarized and summarized in detail. The results show that the stability of colloid is mainly affected by its physical and chemical properties and hydrogeochemical conditions. It is controlled by the colloid particle size, morphology, potential and pH, ionic strength of groundwater. The migration mechanisms of colloids in porous media are mainly colloid deposition and deformation blocking. According to the difference of colloid stability colloid deposition process is characterized by surface blocking and filtration ripening respectively. At present, the simulation technology of colloid migration in groundwater has been developed increasingly mature, but the mathematical model combining the heterogeneity of porous media and the heterogeneity of colloid chemical properties needs to be further discussed.
【作者单位】： 吉林大学地下水资源与环境教育部重点实验室;吉林大学环境与资源学院;
【基金】：国家自然科学基金资助项目(41472215)~~
【分类号】：X143
，
本文编号：2228121
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