Aquaconsult Anlagenbau Gmbh

Ovivo Inc.

Ovivo Luxembourg S.a.r.l.

Noboru Funakubo

Dennis Livingston

Douglas John Boucher

Christopher Bryan Lewis

Douglas John Bucher

Aerator device for introducing gas bubbles into a liquid and comprising a base member with a gas supply and an elastic perforated membrane attached to the base member, and further with a UV protecting cover member, said UV protecting cover member or at least a part thereof being arranged above the membrane to protect the membrane against UV radiation during shipping and storage.

Aerator device and UV protecting cover member therefor

In a submerged membrane bioreactor (MBR or SMU), diffusers are used to eject air bubbles, primarily to facilitate the movement of mixed liquor past the membrane surfaces, cleaning and scouring the surfaces of the membranes with the mechanical energy of the combined air/liquid/solids movement. Oxygen transfer from the bubbles into the mixed liquor is often a secondary goal, for supplying oxygen to biological processes. The invention involves the use of a specific bubble diffuser, oriented at a selected upward angle, to enable a single style diffuser to accomplish simultaneous generation of mid-size and fine bubble aeration, with adjustment of the tilt angle varying the percentages of mid-size and fine bubble aeration. The angle selection, along with the number of diffusers and air volume selected, allows achievement of target liquid movement through the MBR.

Adjustable variable bubble size aeration for submerged membrane air scour

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Vienna, Austria

Noboru Funakubo