Nanofiltration pretreatment of seawater for electrodialysis desalination

A system for water desalination is disclosed. The system comprises a non-drinking water source, a low-pressure nanofiltration device, a first electrodialysis unit, a second electrodialysis unit and a recirculation conduit. Also disclosed is a method of desalting water, the method comprising directing non-potable water to a low pressure nanofiltration device, a first electrodialysis unit, and a second electrodialysis unit. Methods of promoting desalination of water by providing a water desalination system are also disclosed. 公开了用于水脱盐的系统。该系统包括非饮用水源、低压纳滤装置、第一电渗析单元、第二电渗析单元和再循环导管。还公开了水脱盐的方法，该方法包括将非饮用水引导至低压纳滤装置、第一电渗析单元和第二电渗析单元。还公开了通过提供水脱盐系统来促进水脱盐的方法。