Diffuser apparatus

A diffuser assembly for diffusing a gas into a pool of a liquid in a container, comprising:

• a plurality of diffuser elements arrayed adjacent the bottom of the container,
• each diffuser element having an inlet connectable to a source of the gas under pressure and an outlet above the inlet and through which the gas is discharged as bubbles;
• and
• a perforate flexible sheet spaced above each diffuser element and supported solely by the diffuser element, said sheet adapted to balloon to collect agglomerated bubbles of the gas after they have passed from the diffuser element through a depth of the liquid, said sheet having a plurality of openings through which the gas will pass as reformed discrete bubbles.

The diffuser assembly for diffusing a gas into a pool of a liquid, comprising:

• a plurality of diffuser elements adapted to be arranged adjacent the bottom of the pool,
• each diffuser element having an inlet connectable to a source of the gas under pressure and an outlet through which the gas is discharged as bubbles;
• and
• a perforate, flexible sheet spaced above the diffuser elements and said sheet adapted to balloon in the area above each diffuser element to collect agglomerated bubbles of the gas after they have passed through a depth of the liquid, said sheet having a plurality of spaced open holes through which the gas will pass as reformed discrete bubbles.

A diffuser assembly for diffusing a gas within a pool of a liquid, comprising:

• a diffuser element adapted to be submerged in the pool of liquid, said element having an inlet and a circular array of outlets for discharging bubbles of the gas into the liquid;
• a circular, perforate, flexible sheet having a perimeter whose diameter is greater than the diameter of the circular array of outlets, said sheet having a plurality of openings through which gas will pass as discrete bubbles;
• and
• straps joining the perimeter of the sheet to the diffuser element in spaced relation.