Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2010-06-14
2011-10-11
Savage, Matthew (Department: 1778)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S134000, C210S143000, C210S269000, C210S688000, C210S912000
Reexamination Certificate
active
08034244
ABSTRACT:
The disclosed invention is a fixed bed ion exchange water purification system. It employs a combination of electronically controlled process steps and specific systems configurations to duplicate the effects of moving resin beds from one operating position to another as is required in moving bed ion exchange water purification systems. The invention combines features of single fixed bed ion exchange systems with those of a moving bed system. The invention applies to the treatment of water having typical industrial and drinking water concentrations of various ions.
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Burge et al, Nitrate and Perchlorate Removal from Groundwater by Ion Exchange, Sep. 1999, Lawrence Livermore National Laboratory.
Guter Gerald A.
Jensen Peter L.
Ziol Dan
Envirogen Technologies, Inc.
Foley & Lardner LLP
Savage Matthew
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