MGD Process Technology Inc
Matt Dickson Principal PO Box 654,, Boylston, Massachusetts, United States

MGD Process Technology Inc. (MGD) specializes in wastewater treatment equipment and engineering and has over 20 years of experience in the water and wastewater industries.  Since 2006 MGD has been manufacturing the patented Turborator^®technology in the greater Boston area and we are pleased to provide you with continued service and support.

Turborator^® technology has been providing aeration and mixing solutions to the wastewater industry since 1989 and is a featured component in the first ATAD system in North America. 

The Turborator^® provides an innovative approach to gas/liquid transfer.  The simplicity of design results in a rugged, durable, low maintenance system, providing superior mixing and aeration with reduced energy costs.

Introduction:

The Turborator^® has been used successfully in installations throughout the United States, Canada and other parts of the world for over 20 years and has a proven track record in both retrofit and new installations.  The Turborator^® has been used in both municipal and industrial applications wherever mixing and aeration are needed. The following table lists some typical applications for the Turborator^®:

      ATAD                                                     Pre & Post Aeration
     Aerated Lagoons                                   Sequencing Batch Reactors
      Sludge Mixing                                      Aerobic Sludge Stabilization
      
Performance / Design

The Turborator^® is a self aspirating submerged impeller aerator and mixer. When the patented Turborator^® impeller rotates in a liquid, a low pressure zone is created behind each blade. This low pressure zone creates a strong vacuum which draws air down the shaft and disperses as fine bubbles into the surrounding liquid.  Air is introduced up to 9 feet below the surface without requiring a blower or compressor.  The air drawn by the pumping action of the Turborator^® is sheared by the vane edges of the high speed radial flow impeller producing millions of micron sized bubbles. The long retention time and high combined surface area of these micron sized bubbles along with the thorough dispersion generated by the mixing action of the impeller, substantially increases the oxygen transfer efficiency and keeps solids in suspension. The high velocity discharge design also prevents plugging or blockages common in other types of aeration system.  Advantages of gas introduction below the liquid surface include the absence of surface splashing and mist formation which release pathogens into the atmosphere and can cause ice build up in cold weather climates.

Refer to Turborator® Mixing Diagram for graphical representation.

The oxygen transfer efficiency is higher than other mechanical self aspirating aerators due to the manner in which gas is introduced below the liquid surface. In testing performed in accordance to the ASCE "Standard for the Measurement of Oxygen Transfer in Clean Water" Turborator^® units have oxygen transfer efficiency 18% greater than competitor's equipment - based on the horsepower delivered at the shaft.  

The simplicity of the Turborator^® design results in a durable, dependable, low maintenance system. The basic components of the system include a severe duty electric motor with a belt drive mounted to a solid main frame, a heavy walled steel shaft supported by heavy duty bearings, and the patentedTurborator^® impeller. The optional incorporation of a variable speed drive gives the Turborator^®flexibility between pure mixing and mixing with increased aeration to satisfy the most stringent process requirements.

Turborator^® units are available in sizes from 5 - 30 HP and can be installed on a fixed support or mounted on floats to suit the applicatio