Retrievable diffuser module with internal ballast/buoyancy...

Gas and liquid contact apparatus – Fluid distribution – Systems

Reexamination Certificate

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Details

C261S120000, C261S122100, C210S242200

Reexamination Certificate

active

07934704

ABSTRACT:
A diffuser module and system for diffusing gas into liquid such as in aeration/mixing of wastewater. Each module has a header pipe and diffusers which receive gas from the header pipe. Each pipe is equipped with a smaller internal pipe arranged concentrically to provide an annular space which receives the gas and supplies it to the diffusers. The volume within the internal pipe can serve as a ballast chamber or a buoyancy chamber or both.

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