Capacitive de-ionization mineral reduction system and method

A fluid treatment system, comprising:

• a capacitive deionization (CapDI) system being operable between a purify cycle and a waste cycle, wherein,
• in the purify cycle, the CapDI system is configured to remove dissolved solids from a fluid flowing therethrough so as to provide purified fluid downstream of the CapDI system, and
• in the waste cycle, the CapDI system is configured to release removed dissolved solids in the purify cycle into a waste stream;
• a pump fluidly connected to and provided upstream of the CapDI system, such that during the waste cycle;
• an accumulator fluidly connected to and provided downstream of the CapDI system, the accumulator being configured to maintain purified fluid at desired accumulator pressure,
• the pump being configured to pressurize the purified fluid during the purify cycle to maintain the desired accumulator pressure;
• and
• a controller electrically coupled to the CapDI system.

A fluid treatment system, comprising:

• a capacitive deionization (CapDI) system for removing dissolved solids from a fluid passing therethrough to provide purified fluid to a use device, the CapDI system comprising a fluid inlet and a fluid outlet, the fluid flowing into the fluid inlet of the CapDI system comprising a residual sanitizer having chlorine and/or chloramine sanitizer;
• a pump fluidly connected to and provided upstream of the CapDI system;
• and
• an accumulator fluidly connected to and provided downstream of the CapDI system and upstream of the use device, the accumulator configured to maintain the purified fluid at a pressure greater than a predetermined minimum pressure and intermittently deliver purified fluid to the use device, the purified fluid stored in the accumulator comprising the residual sanitizer so as to reduce microbial growth when stored in the accumulator.