The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2014
Filed:
Jan. 16, 2008
Francis Boodoo, Bala Cynwyd, PA (US);
Fabio Chaves DE Sousa, Sao Paulo, BR;
James A. Dale, Cardiff, GB;
Carmen Mihaela Iesan, Fagaras, RO;
Francis Boodoo, Bala Cynwyd, PA (US);
Fabio Chaves De Sousa, Sao Paulo, BR;
James A. Dale, Cardiff, GB;
Carmen Mihaela Iesan, Fagaras, RO;
Purolite Corporation, Bala Cynwyd, PA (US);
Abstract
The present invention provides a new water purification method and system using reverse osmosis. In particular, the present invention provides methods and water purification systems using an ion exchange resin and absorbent media for pretreatment of water being fed to a reverse osmosis treatment system, where the pretreatment reduces fouling of, or deposits or chemical attack on the membrane surfaces and passageways. Particularly, a macroporous resin having an average pore diameter in the range of 1,000 to 500,000 Angstroms and a crush strength or Chatillon value of at least 24 g/bead (710 μm bead diameter) is used.