Technology Catalog - Vendor Detail

Encon - Evaporation
Energy Conscious Innovation

Company Description:

ENCON Wastewater Evaporators are able to handle a wide range of waste streams simultaneously and are a great option for manufacturing processes that may expand or change in the future. Many companies that generate industrial wastewater are hauling their water for disposal at a high cost per gallon. Other companies are treating the wastewater, often with labor and chemical intensive processes, and are having to adhere to increasingly strict discharge limits to their local sewer authorities.
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Technology Description:

Mechanical Vapor Compression (MVC) is the evaporation method by which a compressor is used to compress and thus increase the pressure of the steam produced. Since the pressure increase of the steam also generates an increase in the steam temperature, the same steam can serve as the heating medium for the liquid being concentrated from which the vapor was generated to begin with. This makes this evaporation method very energy efficient. When this compression is performed by a mechanically driven compressor, the evaporation process is referred to as MVC (Mechanical Vapor Compression) or MVR (Mechanical Vapor Recompression).

 

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Encon

1368 Hooksett Rd

Hooksett, NH 03106-1823

USA

603-624-5110

 

Technology Type

  • Evaporative Technologies

Vendor

  • Equipment Vendor

Product

  • Concentrated Nutrients

Problem

  • Nitrogen
  • Phosphorous
  • Storage
  • Odor
  • Pathogens
  • GHG

Technology Strengths,Weaknesses and Critical Indicators

Evaporation Technologies:

  • Use heat to produce either manure with less water or dried manure solids
  • Reduce water in manure using a series of evaporators or recompressed process generated steam to evaporate water from liquid slurries—energy is supplied either by purchased fuel and/or waste heat from other processes
  • Systems that dry separated solids use either a belt or drum to evaporate water from separated solids—energy is supplied either by purchased fuel, electricity and/or waste heat from other processes
  • Compounds are released as the water is driven off (i.e. ammonia, hydrogen sulfide), this often requires additional treatment such as condensation of the water and/or scrubbing of the chemicals
  • Requires purchased energy and costs are a significant concern leading to a trade-off between input costs and gains in liquid concentration and transportation/market of by-products
  • Proven technology for nitrogen recovery, phosphorous recovery, storage reduction, GHG reduction, odor control and pathogen reduction

Newtrient Comments/Opinions:

Evaporation and Drying Technologies:

  • Uses heat to produce either manure with less water or dried manure solids
  • Systems that reduce water in manure use a series of evaporators to sequentially evaporate water from liquid slurries—energy is supplied either by purchased fuel and/or waste heat from other processes
  • Systems that dry separated solids use either a belt or drum to evaporate water from separated solids—energy is supplied either by purchased fuel, electricity and/or waste heat from other processes
  • Chemicals are released with the water (i.e. ammonia, hydrogen sulfide), and this often requires additional treatment such as condensation of the water and/or scrubbing of the chemicals
  • The requirement for purchased energy and costs are a significant concern leading to a tradeoff between input costs and gains in liquid concentration and transportation/market of by-products

 

 Encon has been unresponsive to Newtrient's multiple attempts to supplement or validate the information about this technology.  

Comments added 02/03/2017

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