公开(公告)号：WO1997026992A1

公开(公告)日：1997-07-31

申请号：PCT/US1997001210

申请日：1997-01-24

Applicant: HYDROMATIX

Inventor： HYDROMATIX ,  JANGBARWALA, Juzer ,  MICHAUD, Charles, F.

IPC: B01J49/00

CPC classification number: B01J39/04 ,  B01J49/08 ,  B01J41/04

Abstract: A method for minimizing wastewater discharge generated in an ion exchange regeneration system having a cation exchange bed (7) and an anion exchange bed (8), which method is characterized in that all of the segments of regenerant and displacement rinse are recirculated in a common loop, and shifted forward by one position, whereby the first segment is discarded in the subsequent cycle, and the last segment in the subsequent cycle is provided by fresh rinse, while chemicals are added as necessary, and in final rinse cycle, rinse flows through the cation exchange bed (7) and the anion exchange bed (8) in series, and recirculates in a loop, thereby eliminating over 90 % of waste.

Abstract translation: 一种用于最小化具有阳离子交换床（7）和阴离子交换床（8）的离子交换再生系统中产生的废水排放的方法，该方法的特征在于，再生剂和置换漂洗的所有区段以共同的 循环并向前移动一个位置，由此第一段在随后的循环中被丢弃，并且随后循环中的最后一段由新鲜冲洗提供，而根据需要添加化学品，并且在最终漂洗循环中，冲洗流过 阳离子交换床（7）和阴离子交换床（8），循环循环，消除90％以上的废物。