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Dryer Specifications & Sizing

Basic information is given below for dryer sizing, system types, and fuel flexibility. For details on particular units, click on the appropriate link below to view a specification and technical information sheet.

Dryer Sizing
Fenton manufactures four dryer sizes:

Fenix CM 8/2 Fenix CM 24/5 Fenix CM 48/10 Fenix CM 72/14

The model name indicates the approximate capacity of sludge infeed and biosolids output per day. For example, a CM 24/5 can take in about 24 wet tons of sludge per day and produce 5 dry tons of biosolids — a weight reduction of about 80%! The CM refers to the current Continuous Mix product line, which uses batch technology mixing to produce a consistent granular biosolid.

The chart below shows rough sizing for the dryers. Your Fenton representative can help size a dryer for your specific site. Because the units are modular and compact, plants can easily add additional capacity by running multiple dryers.

Graph showing appropriate sizing for the Fenix biosolids dryer based on wet tons of sludge processed weekly and maximum hours per week of operation.

System Types
The Fenix™ comes in three basic system types that can be customized for your site and your needs.

Brief description of the Fenix CM biosolids dryer.
 Brief description of the Fenix CM DD biosolids drying system.
 Brief description of the Fenix CM TDP biosolids drying system.

Fuel Types
The Fenix™ can use several types of fuels, including:

  • Natural gas
  • Number 2 fuel oil
  • Propane
  • Digester gas
  • Landfill gas

Plants can also specify an optional Dual Fuel Burner, which includes a fuel oil burner and a gas burner. This gives plants the flexibility to switch fuel types with fluctuations in price and availability.

Time Efficiencies

  • Total cycle throughput time: apprx. 3.0 hours
  • Start-up period for initial batch: 0.5 hours
  • Dehydration batch time: apprx. 2.0 hours
  • Cool-down time after last batch: max. 3.0 hours

Click here to learn how the Fenix™ dehydration process works.