Patent ID: 6849178

Claim:
Apparatus for water treatment by means of an electrical field wherein the apparatus includes at least one treatment chamber and a plurality of anode and cathode pairs in the at least one treatment chamber wherein water to be treated passes through the at least one treatment chamber, characterized in that: (a) the at least one treatment chamber forms a prismatic space with an elongated cross section, (b) each anode and cathode pair is formed by a pair of parallel, pin-shaped electrodes having longitudinal axes forming an electrode pair and which extend spaced apart in said space and a voltage is applicable between the electrodes, each of said electrode pair being isolated from other electrode pairs and the electrode pairs are arranged essentially in the shape of a ring, and (c) one end of the at least one treatment chamber is connected to a water inlet and the other end of the at least one treatment chamber is connected to a water outlet, whereby a waterflow from one electrode to the other is generatable which is essentially transverse to the longitudinal axis of the electrodes.