GAS SPARGER FOR AN IMMERSED MEMBRANE

摘要

A gas sparger produces an intermittent flow of bubbles even if provided with a continuous gas flow. The sparger has a housing to collect a pocket of gas and a conduit to release some of the gas from the pocket when the pocket reaches a sufficient size. Optionally, a cover over an outlet from the conduit may break up or distribute the released gas. A large sparger for use with a commercial membrane module can comprise a plurality of smaller units.

主权项

1. An apparatus for providing gas bubbles in a liquid comprising,
a) a housing defining a chamber and having an opening below the chamber allowing communication between the inside of the chamber and the outside of the chamber; and, b) a conduit, the conduit having a first opening inside of the chamber and a second opening in communication with the outside of the chamber, and defining a closed channel having a portion that extends downwards to a low point of the conduit in a direction from the first opening to the second opening, wherein, c) the chamber is adapted to hold a pocket of the gas above an interface between the gas pocket and the liquid, the interface having a variable elevation ranging from at least a lower boundary of the first opening in the conduit to an upper boundary of the low point of the conduit.