公开(公告)号：EP2259854A2

公开(公告)日：2010-12-15

申请号：EP09728027.5

申请日：2009-04-03

申请人： Siemens Water Technologies Corp.

发明人： GANZI, Gary, C. ,  LIANG, Li-Shiang ,  WILKINS, Frederick, C. ,  CHUA, Swee, Hoe

IPC分类号： B01D3/10

CPC分类号： C02F1/469 ,  B01D61/44 ,  B01D61/48 ,  B01D61/485 ,  B01D2317/02 ,  C02F1/42 ,  C02F1/44 ,  C02F1/4604 ,  C02F1/4674 ,  C02F1/4693 ,  C02F1/4695 ,  C02F2001/422 ,  C02F2001/425 ,  C02F2103/08 ,  C02F2209/006 ,  C02F2301/08 ,  C02F2303/16 ,  Y02A20/131 ,  Y02A20/134

摘要： A low energy system and process for seawater desalination wherein the system has at least an electrodialysis apparatus that produces partially desalinated water and a brine by-product, an ion exchange softener, and at least one electrodeionization apparatus. The softener treats the partially desalinated water stream to remove or reduce the amount of scaling material in order to maintain deionization apparatus efficiency and reduce energy consumption. The softener has the capability of removing a higher ratio of calcium ions to magnesium ions than is in the partially desalinated stream, thereby reducing softener size and energy use. The deionization apparatus produces product water of the desired properties. The brine stream may be used to regenerate the softener.

公开(公告)号：EP2190560A1

公开(公告)日：2010-06-02

申请号：EP08831529.6

申请日：2008-09-22

申请人： Siemens Water Technologies Corp.

发明人： GANZI, Gary, C. ,  LIANG, Li-shiang ,  WILKINS, Frederick, C.

IPC分类号： B01D61/00

CPC分类号： C02F1/4604 ,  B01D61/44 ,  B01D61/48 ,  B01D61/58 ,  B01D2311/06 ,  B01D2313/28 ,  B01D2313/30 ,  C02F1/001 ,  C02F1/444 ,  C02F1/4674 ,  C02F1/4693 ,  C02F1/4695 ,  C02F2001/422 ,  C02F2103/08 ,  C02F2209/005 ,  Y02A20/131 ,  Y02A20/134 ,  B01D2311/12

摘要： A low energy water treatment system and method is provided. The system has at least one electrodialysis device that produces partially treated water and a brine byproduct, a softener, and at least one electrodeionization device. The partially treated water stream can be softened by the softener to reduce the likelihood of scale formation and to reduce energy consumption in the electrodeionization device, which produces water having target properties. At least a portion of the energy used by the electrodeionization device can be generated by concentration differences between the brine and seawater streams introduced into compartments thereof. The brine stream can also be used to regenerate the softener.

摘要翻译： 提供了一种低能量水处理系统和方法。 该系统具有至少一个产生部分处理过的水和盐水副产品的电渗析装置，软化器和至少一个电去离子装置。 部分处理过的水流可以通过软化剂软化以降低结垢形成的可能性并降低电去电离装置中的能量消耗，其产生具有目标性能的水。 电去电离装置所使用的能量的至少一部分可以通过引入到其隔室中的盐水和海水流之间的浓度差而产生。 盐水流也可用于再生软化剂。