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.

公开(公告)号：US20240091668A1

公开(公告)日：2024-03-21

申请号：US18253058

申请日：2021-11-18

申请人： SALTWORKS TECHNOLOGIES INC.

发明人： Justin Donghoon LEE ,  Benjamin SPARROW

IPC分类号： B01D9/00 ,  B01D5/00 ,  B08B9/032 ,  C02F1/04 ,  C02F1/52 ,  F28G9/00

CPC分类号： B01D9/0031 ,  B01D5/006 ,  B01D9/0059 ,  B01D9/0063 ,  B08B9/0321 ,  C02F1/041 ,  C02F1/5209 ,  F28G9/00 ,  B01D2009/0086 ,  B08B2209/032 ,  C02F2001/5218 ,  C02F2103/08

摘要： A system and method for cleaning of a forced-circulation evaporative crystallizer. The crystallizer is used to produce salt solids and includes a circulation pump, a heat exchanger, a separator, and a vapor processor. Solids deposits accumulate during salt solids production within at least one of the circulation pump, heat exchanger, and separator. A solids deposits metric representative of an amount of the accumulated solids deposits is measured. The solids deposits metric is determined to deviate from a baseline by at least a cleaning threshold. Certain determinations are made based on the solids deposits metric: determining a cleaning mode and at least one of a type of cleaning solution and a duration for which at least one of the circulation pump, heat exchanger, and separator is to be cleaned. At least one of the circulation pump, heat exchanger, and separator is then cleaned in accordance with those determinations.

公开(公告)号：US20180170775A1

公开(公告)日：2018-06-21

申请号：US15578563

申请日：2016-06-14

申请人： Saltworks Technologies Inc.

发明人： Xiangchun YIN ,  Benjamin SPARROW

IPC分类号： C02F1/469 ,  C02F1/76 ,  C02F1/66 ,  C02F1/467 ,  B01D61/50

CPC分类号： C02F1/4693 ,  B01D61/44 ,  B01D61/46 ,  B01D61/50 ,  B01D2311/12 ,  B01D2311/2634 ,  B01D2311/2684 ,  C02F1/04 ,  C02F1/441 ,  C02F1/442 ,  C02F1/445 ,  C02F1/447 ,  C02F1/461 ,  C02F1/4674 ,  C02F1/66 ,  C02F1/76 ,  C02F2001/5218 ,  C02F2101/16 ,  C02F2103/10 ,  C02F2103/26 ,  C02F2201/46115 ,  C02F2201/4613 ,  C02F2201/46145 ,  C02F2201/4617 ,  C02F2201/4618 ,  C02F2209/003 ,  C02F2209/006 ,  C02F2209/05 ,  C02F2209/06 ,  C02F2209/14 ,  C02F2209/29 ,  C02F2209/40

摘要： Methods, systems, and techniques for removing ammonium from ammonia-containing water involve using a stack that has alternating product chambers and concentrate chambers for receiving ammonia-containing water and an acidic solution, respectively, with the chambers being bounded by alternating cation exchange membranes and proton permselective cation exchange membranes. Ammonium moves from the product chambers to the concentrate chambers across the CEMs and protons move from the concentrate chambers to the product chambers across the pCEMs when the stack is in use. An electrolyzer may also be used to convert the ammonium in the concentrate chambers into nitrogen.