公开(公告)号：US20230065608A1

公开(公告)日：2023-03-02

申请号：US17799911

申请日：2021-03-01

申请人： SALTWORKS TECHNOLOGIES INC.

发明人： Benjamin SPARROW ,  Megan LOW

IPC分类号： C02F1/44 ,  C02F9/00 ,  C02F1/26

摘要： Zero liquid discharge systems, processes, and techniques for treating a saltwater without evaporative crystallization. The saltwater is treated by a fluidic circuit comprising a high-pressure reverse osmosis (“HPRO”) unit configured to operate at a hydraulic pressure of at least 1,500 psi, a cooling crystallizer, and a solids-liquid separator. The saltwater is first concentrated by the HPRO unit to produce an HPRO brine, which is subsequently cooled to a designated crystallization temperature by the cooling crystallizer. The cooling crystallizer crystallizes salt crystals from the cooled HPRO brine and produces a salt-diminished brine. The solids-liquid separator separates the salt-diminished brine from the salt crystals. The salt-diminished brine from the solids-liquid separator is returned to the HPRO unit for further treatment, which allows additional salts to be crystallized from the returned salt-diminished brine.