Patent ID: 7374656

Claim:
A combined electrochemical system for scale treatment and eradicating bacteria in water supply systems comprising: (a) a first electrochemical cell including: (i) a first tank for receiving a water supply; (ii) a first anode, disposed within said tank, and (iii) a first cathode, associated with said anode; (b) a second electrochemical cell including: (i) a second tank for receiving an effluent from said first tank, said second tank being a metallic tank, said second electrochemical cell adapted such that said second tank forms a second cathode of said second electrochemical cell, and (ii) a second anode, disposed within said second tank, and (c) a DC electrical supply source operatively connected to said first cell and said second cell, said first electrochemical cell operative for trapping bacteria in a colloid-like structure, said second electrochemical cell operative for producing a pH above 12 near walls of said second tank, so as to form a bacteria-containing precipitate on said walls of said second tank, thereby removing said bacteria from said effluent.