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:
May. 12, 2009
Filed:
Dec. 07, 2005
Mark E. Yarbrough, Buckeye, AZ (US);
Scott A. Takinen, Goodyear, AZ (US);
Mark E. Yarbrough, Buckeye, AZ (US);
Scott A. Takinen, Goodyear, AZ (US);
Arizona Public Service Company, Phoenix, AZ (US);
Abstract
A zero liquid discharge (ZLD) power plant () includes an advanced oxidation system () for reducing contaminants in source water () to form feed water () for a boiler (). The system () includes an ozonation module () for applying high concentration ozone to the source water () to form a mixed stream (), an ozone reactor () in which the mixed stream is retained () under pressure, an ultraviolet reactor () downstream from the ozone reactor () for enhanced contaminant reduction, and a retention tank () downstream from the reactor (). In one configuration, the source water () is evaporator distillate from an evaporator () that recycles cooling tower blowdown. The system () achieves organic contaminant reduction at total organic carbon (TOC) levels of less than three hundred parts per billion.