Patent ID: 6022459
Filing Date: 2000-02-08
Classification: C02F

Abstract:
A liquid purification apparatus adapted to employ the purifying affects of the heavy metal silver under electrolysis, said apparatus including a chamber formed with spaced apart inlet and outlet openings whereby liquid may be caused to flow through the chamber from said inlet opening to said outlet opening, at least one electrolytic unit, each electrolytic unit including at least two spaced apart silver electrodes mounted in said chamber in the path of said liquid flow, at least one of said electrodes being an anode and at least one of said electrodes being a cathode, electric circuit means for controlling operation of said electrodes, said electric circuit means including a first timing means for providing a pulsed current superimposed over a DC current to said electrodes and a second timing means to cyclically reverse the polarity of said anode(s) and cathode(s) to provide a cyclic process where positively charged silver particles move from the anode(s) toward said cathode(s) to be attached to said cathode(s) and on reversal of polarity the attached positively charged silver particles are repelled to form a silver colloid solution.