Patent ID: 7234857

Claim:
An apparatus for introducing a chemical into a process liquid comprising: a process liquid flow channel for directing process liquid flow along a flow path; an essentially hollow casing, said casing having a feeding liquid conduit for a feeding liquid, a chemical liquid conduit for a chemical liquid and at least one opening through which the chemical and feeding liquids are adapted to be discharged from said casing into said process liquid flow pipe, wherein said casing is attached to the process liquid flow channel in such a manner that said at least one opening is directed to discharge said feeding and chemical liquids substantially perpendicular to the flow path of said process liquid flow flowing in the process liquid flow channel, and wherein at least one of said feeding liquid conduit and said chemical liquid conduit opens at a close proximity of said at least one opening in such a manner that the chemical and the feeding liquids are allowed to contact substantially simultaneously with their discharge through said opening from said casing.