초록 ▼

An electrodialysis purifier system employing an anode, cathodes, water streams, waste streams and ion exchange membranes therebetween. Ion exchange beads are contained within the water streams and waste streams primarily for conductivity control. Screens support the membranes for increased longevity

An electrodialysis purifier system employing an anode, cathodes, water streams, waste streams and ion exchange membranes therebetween. Ion exchange beads are contained within the water streams and waste streams primarily for conductivity control. Screens support the membranes for increased longevity and ribs are so positioned within the element to resist differential pressures encountered. Ion exchange sites are employed throughout the system to increase the dissociation of water into its component ions. Such sites also aid in reducing scale formation. A buffer zone is provided around the cathodes to separate hydroxyl ions from positive ions which would otherwise combine to form scale. Alignment tubes provide the dual purpose of conveying water to various locations throughout the purifier and provide alignment to the various sections. In the overall water purification system, anolyte may be removed from the purifier, filtered through activated charcoal and then employed as both water stream and waste stream influent. A second actvated charcoal filter may be employed after the purifier to extract harmful materials which may be created within the purifier itself.

대표청구항 ▼

A method for water purification employing an electrodialysis purifier having an anode, a cathode, a water stream path positioned therebetween, and electrodialysis membranes around the water stream path, comprising the steps of passing water to be purified directly over the anode; passing the resulti

A method for water purification employing an electrodialysis purifier having an anode, a cathode, a water stream path positioned therebetween, and electrodialysis membranes around the water stream path, comprising the steps of passing water to be purified directly over the anode; passing the resulting anolyte through a first turbidity filter of activated charcoal; and passing the water from the first turbidity filter through the water stream path of the electrodialysis purifier. An electrodialysis purifier, comprising an anode; a cathode spaced from said anode; a water stream path having walls defining a water stream conduit; waste stream paths having walls defining waste stream conduits on either side of said water stream conduit and between said anode and said cathode; and a cathode buffer including a cationic exchange membrane positioned adjacent and spaced from said cathode defining a first waste stream buffer conduit therebetween and an anionic exchange membrane positioned adjacent and spaced from said cationic exchange membrane defining a second waste stream buffer conduit therebetween further removed from said cathode.