【摘要】 通过分析,选择离子交换法作为降低饮用水中总硬度及硝酸盐氮含量的基本方法。通过系统试验,确定了用钠离子交换法降低饮用水中总硬度的工艺条件;研究了采用氯离子交换法减少饮用水中硝酸盐氮含量的方法;将二者有机结合,提出了降低饮用水中总硬度及硝酸盐氮含量的工艺流程,并在实际工程中得到应用,效果很好。更多还原

【Abstract】 By analysis,choose the ion-exchange method as a basic method to reduce the total hardness and NO3-N content in the drinking water.Through the experiments,technologic conditions which reducing the total hardness by using the sodium ion-exchange method are given;the method which can remove NO3-N from drink water is studied by chlorine ion-exchange.According to the two methods,the technical flow that reducing the total hardness and NO3-N content in the drinking water is put forward.The method has been applied to the practical engineering,the good effect is obtained.更多还原