Patent ID: 7438869

Claim:
A waste gas cleaning system for removing harmful and/or toxic gases from a gas stream, comprising: a reaction chamber for treating and converting harmful and/or toxic gases for their removal and/or disposal, said reaction chamber having an inlet for receiving a gas stream to be treated and an outlet; a plasma source coupled to said reaction chamber for providing excitation energy to said reaction chamber for treating harmful and/or toxic gases for their removal and/or disposal and form a plasma therein; and a liquid jet pump having a suction tube or port connected to said reaction chamber outlet and generating sufficient negative pressure in said reaction chamber for generating a plasma therein, said liquid jet pump being arranged to draw treated harmful and/or toxic gases out of said reaction chamber mixed with liquid from said liquid jet, wherein the liquid jet pump has a constricted region having a lower pressure that is connected via said suction tube or port to said reaction chamber to provide vacuum drawing power or suction on said reaction chamber, wherein the liquid jet pump comprises: a housing having the suction port that is connected to reaction chamber; a constricted nozzle disposed within the housing, wherein the constricted nozzle is an end of supply tube that extends through a wall of housing and is configured to eject a horizontally directed liquid jet when the reaction chamber and the liquid pump are vertically aligned; and a liquid jet drain-off tube having an end opening disposed opposite the constricted nozzle to directly receive and drain the horizontally directed liquid jet ejected from the constricted nozzle.