Technology Catalog - Vendor Detail

Den Hollander Engineering - Evaporation
Process systems and solutions

Company Description:

Den Hollander Engineering BV is a family business founded in 1983 by father and son den Hollander. Our worldwide operations are run from our offices in Gorinchem. Den Hollander Engineering BV likes to do things properly. The team at Den Hollander Engineering BV consists of specialists who strive to excel. This is not just a means of providing a top-class service to our clients, but also to facilitate ongoing growth. At Den Hollander Engineering BV, traditional craftsmanship goes hand in hand with innovation. Quality is a precondition in the processing of foodstuffs. We work constantly to express our craftsmanship in the quality of the products and services we provide, meticulously and consistently. We aspire to long-term relationships with our clients.
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Technology Description:

Den Hollander Engineering B.V. has its own specialized evaporation department, where experienced engineers are working in the field of evaporation technology in the widest sense of the word. A deep-rooted knowledge of evaporators and a traditional craftsmanship are our key assets. Down the years, construction methods in the world of evaporation engineering have been changing to meet the latest technological insights. The skilled engineers at DHE have all had first-hand experience of these developments over the last few decades. They are familiar with the various methods of construction, as well as their pros and cons. But the experience DHE has built up in this field benefits not only the food-processing industry.

 

 

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

 

Den Hollander Engineering 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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