Mechanische Scheiding

Mechanische Scheiding

De mechanische voorbehandeling zorgt ervoor dat vrijwel alle vaste deeltjes worden verwijderd waardoor er een doorzichtige vloeistof (mest-vloeistof) ontstaat die uitstekend geschikt is voor Biologische verwerking.

De mest wordt in drie stappen van vaste stoffen ontdaan:

  • Een vijzelpers scheidt de grove deeltjes in een dikke fractie dat rijk is aan vezels
  • De dunne fractie wordt door de Evodos centrifuge geleid voor scheiding van de fijne deeltjes. De Evodos centrifuges leveren het gedeelte van de dikke fractie, met een pasta-achtige structuur, dat rijk is aan (ongebonden) fosfaten en stikstof.
  • De ultra-fijne deeltjes worden daarna in een flotatie unit opgevangen en teruggeleid naar de voeding van de Evodos centrifuges.

De uit dit proces verkregen doorzichtige mest-vloeistof is rijk aan organisch materiaal en zouten en bevat de resterende stikstof. De vloeistof is vrij van alle zwevende deeltjes en uitstekend geschikt voor verdere biologische verwerking met de Membraam Bio-Reactor (MBR).

  • Vrijwel 100% van de vaste deeltjes verwijderd
  • Per ton drijfmest komt circa 160 liter stapelbare bio-meststof ( dikke fractie) vrij met een droge stof gehalte van circa 28%
  • Deze meststof bevat vrijwel alle fosfaten en 33% van de stikstof
  • Mechanische scheiding garandeert hoge bemestende waarde
  • Vrijwel geen toevoeging van chemicaliën
  • Voorbehandeling met laag energieverbruik
  • Resterende vloeistof (840 liter) uitstekend geschikt voor biologische verwerking

  • "I've seen a wide range of harvesting tools and your new centrifugal technology seems excellent due to its ability to harvest small Algae with high efficiency."

    Professor Mark Edwards, Arizona State University, USA

  • “We considered many dewatering technologies and the Evodos machine satisfied both our dewatering requirements and budget. Their novel technology and efficiency will allow us to produce a high-quality, organic product at a very cost effective price point.” Geronimos Dimitrelos, CEO of Algae to Omega, Florida, USA

  • “Very interesting. It seems that you are able to harvest and concentrate Nannochloropsis into a paste with dry solid content of over 30% with an energy expenditure of 0.95kWh/m3. If this is the case it is a great achievement. Congratulations !”

    Professor Mario Tredici, Florence University, Italy

  • “No other centrifuge that we could find on the market meets the challenges of micro algae extraction from water as effectively as the Evodos machines and this is critically important in keeping the cost per weight of harvested algae to a minimum.” Andrew Lawson, Managing Director of MBD Energy, Australia

  • "Evodos is from left field of traditional centrifuge technology.
    I clearly see the following advantages:     1. Liquid ring self balancing, resulting a higher cut-off rate because there are no vibrations.
    2. Effective separation because of laminar flow and a low flow velocity across full cross section of the     bowl.
    3. A very compressed dewatered cake.
    4. Excellent three-phase separation because of the free interface level."     Howard Kneebone, HAK Consulting, Australia, April 2012

  • “The biomass that comes out of the Evodos is essentially alive. That means you increase the shelf life of your product to several days, if not up to a week.” Associate professor, dr. Kirsten Heimann, James Cook University, Australia

  • Key design parameters that match customer expectations

    A generation of centrifuges that is designed whilst starting from your expectations. With the end goal in mind. That is why the Evodos centrifugals give you revolutionary performance.

  • Site visit Algae to Omega

    "We appreciated the opportunity to meet all of you this past Wednesday at Algae To Omega in Fort Lauderdale. Seeing the Evodos equipment in operation was invaluable.  No brochure, sales presentation, or video could have matched the impact of witnessing the real thing up close and in action. Plus we had the chance to ask our questions directly to the Evodos people." 

    Frank Preg and Carolyn Much of AgOil International, 2012 March 7.

  • "This idea of high separation effectiveness combined with dry solid discharge, kept spinning around in my head." Hen Boele, CTO Evodos, The Netherlands

  • “For production of microalgae for commodities a scalable low energy harvesting technology is of key importance.” Proffessor dr. ir. Rene Wijffels, Wageningen University, The Netherlands

  • "The Boll Lucent system targets many different application with a wide spread of viscosity, density and different types of additives in the oil. With a standard disc stack separator we need mechanically to adjust and customize the hardware for every specific application. With the Evodos technology we can easily adapt our system for different applications without any modifications. In addition we also have a fully automatic, self-cleaning separator in line with the Boll Lucent system."
    Stefan Sandberg, CEO of Boll Lucent, April 2012

  • Nothing is more exciting than sending "Murphy" home

    Murphy's Laws states that "Anything that can go wrong, will go wrong".

  • "I have been looking at and making application of all kinds of liquid/solids separation technologies for nearly 20 years.  What you have developed is by far and away the most efficient and advanced process I’ve ever looked at.  You have hit a home run with your spiral plate technology to dewater algae and animal manures." Benjamin Brant, CEO Ecoponex, OC/USA, April 2012

  • "It is Evodos' mission to support our customers with best in class products for mechanical separation at minimal energy consumption and without using chemicals or consumables. Thereby we aim to win or preserve natural resources." Marco Brocken, CEO Evodos, The Netherlands

© Evodos 2012
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