Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1981-05-12
1984-08-14
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204301, B01D 5702
Patent
active
044655738
ABSTRACT:
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.
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