摘要
察尔汗盐湖是一个以钾、镁为主，伴有多种非金属矿床的大型现代盐湖。赋存于盐层中的晶间卤水是我国目前钾肥生产的主要原料。作者根据当地的水文地质条件，建立了盐湖首采区含钾卤水的水量水质模型，其中用一级反应表示各离子间的固液转化效应，并采用特征有限元法求解包括反应项的对流一弥散方程。模拟结果具有较高的仿真性。
Qarhan salt lake, one of the largest modern multiple salt deposits, contains many kindsof useful elements such as potassium and magnesium. Salt-hosted intercrystalline brine is themain resources of producing potash fertilizer in China. A two-dimensional model for brinequantity and quality is proposed in accordance with the hydrogeological conditions of Qarhansalt lake. Method of splitting operator finite element is used to solve the flow and convectiondispersion system of equations where the first--order term is included to calculate the transformation between salts and brine so as to evaluate brine resources and predict the changes ofpotassium and magnesium content. The simulated results agreed well with the observedfacts.
出处
《西北地质科学》
1997年第1期63-69,共7页
Northwest Geoscience
基金
国家八.五科技攻关项目
关键词
卤水资源
固液转化
数值模拟
盐湖
含钾卤水
Brine resources Transformation between salts and brine Qarhan salt lake Numerical simulation Characteristic finite element method
