Patent · US Expired

Method and apparatus for water treatment

US5766488A · kind A · utility

40Cited by
24References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 7, 1996
Grant dateJun 16, 1998
Priority date
Expiry dateMay 7, 2016

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S261/42
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

An apparatus for treating water includes a vertically extending contact vessel, wherein water is contacted with ozone, and a return vessel which contains a column of water of a sufficient height to drive water through downstream solids separation stages. Ozone is removed from the water and the rate of ozone injection is monitored and automatically adjusted so that no great amount of ozone remains in water entering the solids separation stages. The ozone is generated in elongated elements that are cooled by the process water and that are positioned to serve as a static mixer for such water.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.