摘要
利用大量水质资料,结合水文地质条件对河南东部地下水主要指标空间分布特征、相互关系及水文地球化学特征进行了系统分析研究,根据有关水质指标相互关系及其与阳离子比例系数的关系特征对地下水进行了水质分层.首次发现了豫东平原地下深层软水阳离子比例系数(NACA)与总硬度(Z)相关关系方程为NACA=a·Z-b,且b值为1.5;并采用碳酸平衡作用、同离子效应理论推导出了上述关系式(包括b值为1.5);结合阳离子交替吸附作用形成软水的三个前提条件分析、钻孔地层资料验证等,进一步论证了河南东部深层地下水自然软化模式遵循"碳酸平衡作用"模式.
By means of a great mass of water quality data,the systematic analysis and research have been done on hydro-geochemical characteristics of soft groundwater in the Eastern Henan Plain,based on hydrogeology conditions; the ground water has been divided into different layers according to the correlation of water-quality indexes and cationic proportional coefficient.So it is the first time to find the correlation equation of NACA =aZ b between NACA and total hardness （Z） on soft groundwater in the Eastern Henan Plain,and the value of b is 1.5.The above equation has been drawn with the help of carbonate equilibrium and common-ion effect.According to analysis on three preconditions of soft formation under the cation alternative adhesive action and proof on drill data,the conclusion has been drawn that natural softening model of deep ground water in the Eastern Henan Plain follows carbonate equilibrium.It is significant in the exploitation,utilization and protection on the deep ground soft water in similar areas as well as theoretical study on Hydro-geochemistry.
出处
《河南大学学报（自然科学版）》
CAS
2015年第1期55-62,共8页
Journal of Henan University:Natural Science
基金
国土资源大调查项目(1212010634502)
