Technology Catalog - Vendor Detail

Ostara - Struvite Crystallization
Better Ways for a Better Future

Company Description:

Ostara’s Pearl® Process resolves struvite issues and provides a comprehensive approach to nutrient management. The technology is based on controlled chemical precipitation in a fluidized bed reactor that recovers struvite in the form of highly pure crystalline pellets or “prills.” Nutrient-rich feed streams are mixed with magnesium chloride and, if necessary, sodium hydroxide and then fed into the Pearl reactor where minute particles or struvite “seeds” begin to form. Like a pearl, these seeds grow in diameter until they reach the desired size – 0.9 mm to 3.0 mm – which is precisely controlled by varying key parameters.

Technology Description:

 Ostara’s technology recovers phosphorus for reuse as an eco-friendly fertilizer, saving on chemical costs, reducing biosolids production and creating a new revenue stream for your plant.

 

Ostara

690-1199 West Pender St.

Vancouver, BC V6E 2R1

Canada

604-408-6697

 

Technology Type

  • Struvite Crystallization

Vendor

  • Equipment Vendor

Product

  • Concentrated Nutrients

Problem

  • Nitrogen
  • Phosphorous
  • Pathogens

Technology Strengths,Weaknesses and Critical Indicators

Struvite, also known as Magnesium Ammonium Phosphate (MAP) is a slow-release phosphorus-rich product with the following attributes: 

  • Produced by treating dairy wastewater with chemicals 
  • Proven chemical process for municipal wastewater treatment 
  • Advanced phosphorus recovery systems for treating dairy manure typically cost more than those for other animal manures 
  • All advanced phosphorus recovery systems increase the cost of treating dairy manure over that of conventional treatment 
  • Effective in removing a high percentage of phosphorus when used with proper chemical treatment
  • Value of technology will be based on the marketability of the finished product 
  • Proven technology for nitrogen recovery, phosphorous recovery, and pathogen reduction

Newtrient Comments/Opinions:

Struvite, also known as Magnesium Ammonium Phosphate (MAP) is a slow-release phosphorus-rich product with the following attributes:

  • Produced by treating dairy wastewater with chemicals
  • Proven chemical process for municipal wastewater treatment
  • Increased cost of treating dairy manure over that of other animal manures
  • Increased cost of treating dairy manure over that of conventional treatment
  • Effective in removing a high percentage of phosphorus
  • Value of technology will be based on the marketability of the finished product

 

Ostara 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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