Patent ID: 8562796

Claim:
A control system for use with an automated recirculating or single-pass cleaning application that utilizes solutions of electrolytically-generated chlorine oxyanions comprising: (a) an electrolysis solution; (b) a first portion of said electrolysis solution connected in fluid communication with a chlorine sensor; (c) a pH modifier connected in fluid communication with said first portion of electrolysis solution to maintain a stabilized pH between about 5.5 to about 7.5 of said portion of electrolysis solution to enable accurate measurement of chlorine oxyanion concentration from approximately 10 ppm to 1000 ppm; (d) at least one flow control valve connected in fluid communication to said first portion of electrolysis solution to provide said pH modifier; (e) a feedback control loop connected in fluid communication to said flow control valve allowing recirculation or addition of electrolysis solution, water and/or pH modifier to said electrolysis solution to obtain a targeted chlorine oxyanion concentration from said system; and (f) an output into said cleaning application; wherein said system generates electrolysis solutions having controlled chlorine concentrations between approximately 10 ppm to 1000 ppm without requiring continuous adjustment of flow rates of said solutions or additional chemical additives as a result of said stabilized pH range of said first portion of electrolysis solution in fluid communication with said chlorine sensor; and wherein said first portion of electrolysis solution used for measurement of chlorine oxyanion concentration is discarded from said system or recirculated in said system.