Sustec – Nutrient Recovery

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Sustec – Nutrient Recovery

Part of DMT Group

Company Description:

Sustec was established in 2008 by Lex van Dijk. They are a Dutch technology and solutions provider with a strong focus on sludge treatment and resource recovery, with their head office located in Wageningen, the Netherlands.

Sustec realizes technologies for sustainable solutions in the field of handling waste streams. It involves energy production, the recovery of raw materials and nutrients and the purification of water. The projects they work on are the execution and completion of TurboTec® installations (licenses, limited scope and full scope), the development and support for resource recovery NutriTec® projects, and to support start-up and commissioning of new and existing WWTP.

Sustec provides sustainable technologies for a circular economy. With a focus on sludge treatment and resource recovery, Sustec offers their customers consultancy services, laboratory and pilot testing, licensing, design and engineering, contracting and operational support.

 

With a strong focus on R&D Sustec is continuously investigating new possibilities for the next generation TurboTec® and Nutritec® installations. In combination with entrepreneurship, professionalism and integrity, Sustec offers their customers a wide range of solutions resulting in reliable and excellent projects/services.

Technology Description:

The Nutritec® is a unique technology to recover nitrogen and phosphorus from wastewater by struvite precipitation followed by membrane ammonia stripping resulting in ammonium sulfate. The Nutritec technology can be used to recover nutrients from reject water, concentrated industrial wastewater, or even separately collected urine. Phosphate is recovered via struvite precipitation which occurs is a special designed crystallization reactor. Ammonium is recovered via a membrane stripping process that captures ammonia in a sulfuric acid solution to produce ammonium sulfate. Benefits of this process are its compactness and little energy demand. Both struvite and ammonium sulfate can be used as fertilizers.

Sustec 19125 SW 125th CT Tualatin, OR USA (503) 379-0147 Visit Company Website

Technology Type

  • Ammonia Stripping

Vendor

  • Equipment Vendor

Product

  • Concentrated Nutrients

Problem

  • Nitrogen
  • Odor
  • Pathogens

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Technology Strengths, Weaknesses and Critical Indicators

Ammonia-N can be harvested from manure and digestate using proven chemical/thermal processes:

  • Produces a concentrated source of nitrogen from a renewable source
  • Requires pre-treatment to remove coarse and fine solids
  • Pairs well with anaerobic digesters because digesters convert organic N into ammonium
  • Chemical storage required for process chemicals and final product
  •  Proven technology for nitrogen recovery, odor control, and pathogen reduction

Newtrient Comments/Opinions:

Ammonia-N can be harvested from manure using proven chemical/thermal processes.

  • Produces a concentrated source of nitrogen from a renewable source
  • Requires pre-treatment to remove coarse and fine solids
  • Pairs well with anaerobic digesters because digesters make more ammonia available
  • Chemical storage required for process chemicals and final product
  Sustec has not been evaluated using Newtrient's 9-point scoring process because, although their process appears to be suited for use on dairy manure, Newtrient is not aware of any current dairy based projects in North America. Newtrient will continue to work with Sustec to refine the cost and performance information as it comes in with new commercial dairy installations.

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