Water treatment methods and systems using combinations of...

Details Water treatment methods and systems using combinations of... Water treatment methods and systems using combinations of...

2011-02-08

2011-12-13

Prince, Fred (Department: 1778)

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

C210S748200, C210S754000, C210S760000

Reexamination Certificate

active

08075784

ABSTRACT:
Methods and apparatus for efficient implementation and control of water treatment bypass loops combining ozone and chlorine injection are disclosed. Combined use of ozone and chlorine exploits high oxidation potential of ozone while retaining longer lived residual effectiveness of chlorine for high efficacy against contaminants, particularly biological and organic. Embodiments including automated monitoring and control of chlorine concentrations in presence of high oxidation potentials from ozone are disclosed, as is an inexpensive circuit for using a signal from a redox sensor for controlling output from an electrolysis cell. Also disclosed is a multipurpose enclosure that may be used, with different inserts, to implement an electrolysis cell, an ultraviolet ozone generator, an advanced oxidation unit, or an erosion feeder for adding dissolved salt to water for use in an electrolysis cell. The multipurpose enclosure helps reduce cost associated with maintaining inventories of different components used in water purification systems.

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