Vomm – Drying System

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Vomm – Drying System

About the Company:

Typically the plant works in a closed circuit, in a slight depression and is designed for the continuous processing of organic and inorganic products such as diluted or concentrated liquids, sludge, and moist solids (water or solvent basis), regardless of moisture content and viscosity.

About the Solution:

Thanks to its remarkable flexibility, VOMM Turbo Technology can treat sludge and wastes with different characteristics to obtain homogeneous products with the desired moisture content. The obtained granules are compact, resistant, non-porous, sanitized and can be transported and handled easily. Properties of these granules make the process particularly suitable for treatment of sewage sludge and other organic sludge in energy production (waste to energy plants, cement production plants, biomass to energy plants, etc) or agricultural applications.

Vomm , Italy 39 02 57510808 Visit Company Website


  • Equipment Vendor


  • GHG
  • Nitrogen
  • Odor
  • Pathogens
  • Storage

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Solution Strengths, Weaknesses and Critical Indicators

Active Drying Technologies:

  • Produce a marketable product, dry manure solids, and reduce transportation costs
  • Require energy to reduce water content and dry manure solids, purchased energy cost are an issue
  • Require operator attention in excess of other systems due to the risk of combustion
  • Other compounds are released with the water (i.e. ammonia, hydrogen sulfide), and require additional treatment
  • Potential loss of ammonia nitrogen due to volatilization
  • Proven technology for storage reduction, odor control, GHG reduction 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
  Vomm has been unresponsive to Newtrient's multiple attempts to supplement or validate the information about this technology.

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