Evaled – Evaporation

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Evaled – Evaporation

Wastewater treatment using Hot/Cold Water cogeneration evaporators

Company Description:

Combining industrial performance and sustainable development while remaining competitive requires that the biofuels and biogas industry ensure industrial process safety, reduce operational costs, implement solutions providing significant savings and comply with environmental regulations, which ultimately lead to the public’s acceptance of a site.

Technology Description:

AC is the Evaled™ evaporators family that takes advantage of excess hot water or steam readily available from co-generation or cooling plants. Use of the existing heating and cooling water provides a cost effective solution by reducing the operating costs. The AC series is able to handle a variety of wastewater and, thanks to the forced circulation, reduction of fouling and scaling phenomena is achievable.

Evaled , USA 39-0434-516311 Visit Company Website

Technology Type

  • Evaporative Technologies

Vendor

  • Equipment Vendor

Product

  • Concentrated Nutrients

Problem

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

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

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