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1. (WO2014197085) DESALTING SALTY SLUDGE SYSTEM AND METHOD

Pub. No.:    WO/2014/197085    International Application No.:    PCT/US2014/027993
Publication Date: Fri Dec 12 00:59:59 CET 2014 International Filing Date: Sat Mar 15 00:59:59 CET 2014
IPC: B01D 11/02
B01D 11/04
C02F 11/00
Applicants: PENTAIR WATER POOL AND SPA, INC.
Inventors: STILES, Robert, W., Jr.
DELONG, Dennis, P.
LOSORDO, Thomas
Title: DESALTING SALTY SLUDGE SYSTEM AND METHOD
Abstract:
A system and method of desalting salty sludge is provided. The method includes providing a salty sludge; processing the salty sludge to increase its surface area; adding water to the salty sludge to make a sludge slurry and to wash the salty sludge; removing and purifying degraded water from the sludge slurry, and recirculating purified water into the sludge slurry; separating a liquid phase and a solid phase of the sludge slurry and purifying the liquid phase; identifying a salt concentration in the solid phase and comparing the salt concentration to a desired value; and adding water to the solid phase if the salt concentration is greater than the desired value.