Apparatus and method of increasing the mass transfer of a treatment substance into a liquid

In combination with a pipe, said pipe having a cylindrical inner wall with a central axis, providing for a flow of liquid including flow from an upstream location to a first downstream location in a full pipe flow regime, an apparatus to increase mass transfer of a treatment substance into the liquid comprises:

• (a) a diversion conduit for externally providing a diversion flow of a first portion of the liquid from said upstream location to said first downstream location, said diversion conduit receiving the diversion flow from said flow of the liquid, leaving a mainstream flow of the liquid inside the pipe flowing from the upstream location to the first downstream location;
• (b) a booster pump receiving said diversion flow and boosting its pressure;
• (c) an aspirating injector receiving said diversion flow from said booster pump and injecting a proportioned amount of treatment substance into said diversion flow;
• (d) a plurality of nozzles, each nozzle being spaced apart linearly from its adjacent nozzle, each nozzle receiving a substantially equal portion of said diversion flow with treatment substance, each nozzle so disposed and arranged as to inject its respective stream into said first downstream location;
• and
• (e) a plurality of flow vanes circumferentially disposed about the cylindrical inner wall, the plurality of flow vanes disposed between the upstream location and the first downstream location, each said flow vane attached to and extending from the cylindrical inner wall and extending radially inward toward the central axis from said cylindrical inner wall and extending into the main stream flow of the liquid.

A method of increasing mass transfer of a treatment substance into a liquid flowing through a pipe comprises:

• diverting a first portion of the liquid from a first upstream location of the pipe, leaving a main stream flow of the liquid flowing inside the pipe from the first upstream location to a first downstream location, wherein between the first upstream location and the first downstream location the main stream flow of the liquid passes through a plurality of flow vanes disposed circumferentially about, attached to, and extending from an inside wall of the pipe;
• flowing the first portion of the liquid through a treatment mixing apparatus which mixes a treatment substance into the first portion of the liquid, resulting in a first mixture;
• and
• injecting the first mixture into the pipe at the first downstream location.