Electrochlorination system configurations for the generation of high product strength solutions
AssigneeEvoqua Water Technologies LLC
InventorsJoshua Griffis, Simon P Dukes, Paul Beddoes, Peter G Rogers
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Abstract
An electrochlorination system comprises a source of feed fluid, a product fluid outlet, and a plurality of electrochemical cells connected fluidically between the source of feed fluid and the product fluid outlet. The system is configured to operate at least one of the plurality of electrochemical cells at one of a first current density or a first flow rate, and to operate another of the plurality of electrochemical cells at a second current density or second flow rate different from the respective first current density or first flow rate.
Claims2
A method of operating an electrochlorination system, the method comprising:
- flowing feed fluid through a first electrolyzer to produce a product solution containing sodium hypochlorite (NaOCl), the first electrolyzer including a plurality of series electrochemical cells;
- flowing the product solution from the first electrolyzer operating into a product tank;
- recirculating the product solution from the product tank through a second electrolyzer and back into the product tank, wherein the second electrolyzer includes a parallel electrochemical cell;
- and
- flowing the product solution from an outlet of the product tank to a point of use.
Dependencies are inferred from the claim text.