MDU Tech Services, LLC

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The Microwave Disinfection Process

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Microwave disinfection units treat medical waste with moist heat created by microwave generators and steam injection.  This disinfection process(microwave energy and steam) heats material from the inside-out which provides an extremely high level of disinfection.  A PLC-based control system, with no operator interface required, ensures a consistent, thorough and safe disinfection process. 

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The process begins with the push of a button.  The charging system uses a hydraulic lift mechanism to dump a bin of medical waste into the infeed hopper, which has been pre-treated with steam.  The feed arm and electrical sensors control the amount of waste in the infeed hopper. 

Beneath the infeed hopper, a powerful shredder will cut the medical waste into pieces appropriately sized for the disinfection process. Microwave generators and steam heat the shredded medical waste evenly as it travels through the microwave screw conveyor. 

A second thermally insulated screw conveyor, functions as a temperature holding section and a discharge conveyor.  Treated material exiting this device is ready for disposal at any municipal waste landfill or waste-to-energy facility.

Microwave Disinfection Units

This video by ACTenviro shows Microwave Disinfection Units in actual use and the benefits they can provide.

Advantages of Microwave Disinfection over other methods

Microwave Disinfection Units have several important advantages over other methods of dealing with hazardous medical waste.

  • The MDU process is clean and green, generating no harmful air emissions and no lquid discharges.
  • No chemicals are used in this disinfection process; no chemicals to store or discard.
  • The treated waste is reduced in volume by approximately 80%, and is safe for landfill disposal.

If your organization is considering microwave disinfection technology, please be sure to contact us for significant savings on a refurbished unit and expert service for your site.