公开(公告)号：US3715287A

公开(公告)日：1973-02-06

申请号：US3715287D

申请日：1971-01-21

申请人： CCI AEROSPACE CORP

发明人： JOHNSON A

IPC分类号： B01D15/04 ,  B01J39/04 ,  B01J47/04 ,  B01D15/06

CPC分类号： B01J47/04 ,  B01J39/05 ,  B01J41/07

摘要： A preconditioner which is used for treating raw water before utilization in a water treatment or utilization process and which receives the concentrated waste water returning from the process. The preconditioner has two tanks which can contain either a permeable, strong acid cation exchanger or a permeable, weak acid resin or both. The tanks are connected in a push-pull arrangement, i.e., one tank receives the incoming raw water and the waste water leaves through the other tank. The strong acid cation exchanger in a preconditioner serves to presoften the water and the weak base anion exchanger in a preconditioner serves to add acid to the incoming water. The high salinity return water from the treatment or utilization process is discharged through the other tank to regenerate the preconditioner substance. A storage tank-salinity buffer combination receives the product water from a demineralizing unit and the tank contains a mixture of anion and cation responsive materials and a weak base material. The mixture of anion and cation responsive materials serves to soften the product during high demand periods and the weak base serves to remove acid during the same periods. During the off supply periods, the weak base releases acid to help regenerate both the preconditioner and cation responsive storage material and the mixture of cation and anion responsive materials releases salt to the product water which is then removed. The preconditioner and storage tank-salinity buffer combination can be utilized with different types of demineralization units.

摘要翻译： 一种预处理器，用于在水处理或利用过程中使用前处理原水，并接收从该过程返回的浓缩废水。 预处理器具有两个罐，其可以包含可渗透的强酸性阳离子交换剂或可渗透的弱酸性树脂或两者。 油箱以推拉装置连接，即一个罐接收进入的原水，废水通过另一个罐排出。 预处理器中的强酸阳离子交换剂用于预处理水，预处理剂中的弱碱阴离子交换剂用于向进入的水中加入酸。 来自处理或利用过程的高盐度返回水通过另一个罐排出，以再生预处理物质。