Advanced Aeration Control, LLC

Autotrol Corporation

Mooers Products, Inc.

Tusker Medical, Inc.

Thomas E Jenkins

Paul R Goudy, Jr

David T Redmon

Timothy D Hilgart

Juan De Dios Trillo Monsoriu

Ian Trillo Fox

John H Morriss

Bernard H Andreas

Richard Roy Newhauser, Jr

Scott J Baron

Greg Liu

Paul G Hayter

Jeffrey Allen Walker

William N Roos

Bernard J Beemster

Patrick V Collins

Douglas F Mooers

Bruce C Mundt

William P Doolittle

Rohit Girotra

Ian Trillo-Fox

David Redmon

Juan Trillo-Monsoriu

Timothy Hilgart

Methods and apparatus for continuing, automated control of wastewater treatment processes. In certain preferred embodiments, method and apparatus for control of aeration in suspended growth biological treatment processes, especially in activated sludge processes.

Method and apparatus for controlling wastewater treatment processes

Controlling wastewater treatment processes

A diffuser assembly for diffusing air into wastewater includes a plurality of diffuser elements arrayed along the bottom of a container for the wastewater. Each diffuser element has an inlet connected to a source of air under pressure and an outlet for discharging air in the form of discrete bubbles. A perforate sheet is spaced above each of the diffuser elements to capture bubbles which will tend to agglomerate by the time they reach the level of the sheet. The sheet has a plurality of polygonal openings which reform the trapped gas into discrete bubbles as the gas passes through the sheet. Additional levels of perforate sheets may be spaced above the first perforate sheet. The perforate sheets may be in the form of individual sheets each attached to a respective diffuser element, or the sheets may be part of a continuous sheet or sheets suspended across the container for the wastewater.

Diffuser apparatus

A diffuser for air or other fluids has a rigid body with a flat disc and a hollow boss defining a central opening. The perimeter of the disc is scalloped and is defined by alternating curved crests and valleys. A flexible elastomeric diaphragm overlays the top of the disc and has a rim portion with spaced recesses that receive the crests of the perimeter of the disc. The rim portion does not extend to the bottom of the valleys of the perimeter and as a result, air openings are defined between the rim portion and the bottoms of the valleys. Air under pressure admitted to the central opening will deform the diaphragm and allow air to escape through the air openings. A series of vanes may be formed on the underside of the disc radiating from the boss. The vanes, together with vane extensions formed on the underside of the diaphragm rim portion, define a compartment for each air opening so that bubbles released from one air opening do not mix or combine with bubbles from adjacent air openings. The vanes and vane extensions may be formed on a spiral to give a spiral flow to the bubbles.

Fluid diffuser

Growing community of inventors

Glendale, WI, United States of America

Thomas E Jenkins