Technology for N Recovery as liquid ammonium sulphate or ammonium nitrate starting from separated liquid slurry with "Circular Values" stripping and scrubbing process (ID:265)

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Input material
separated liquid slurry
Output product
liquid ammoniumsulphate or ammoniumnitrate
Processing capacity
static units can be profitable when the farmer has production of 4000 kg N and more (>1000 tons manure/digestate). For lower than 4000 kg a mobile Circular Values solution can fit.
Technology Status
Available on the market
Keywords
separation
stripping
scubbing
nutrient recuperation
Technology description
  • By  increasing  the  temperature  and/or  pH  of  the  slurry  the  ammonium-N  will  turn  into  ammonia gas (NH3). Depending on the availability of heat from CHP (combined heat and power) and the capacity we add some alkine (CaOH) to increase the  pH.  This  gas  will  go  into  the  air  stream  that  is  blown  in  the  opposite  way.  This  air  will  go  into  a washer. Here the wash water is low in pH due to the added acid (H2SO4 or HNO3) hence liquidizing the ammonia  again  (NH3  to  NH4+).  Depending  on  the  acid  there  will  be  ammonium sulphate  or ammonium nitrate liquid produced.
  • It’s a closed process so no emissions.
  • Capacity is recovery up to 85% of the ammonium-N from the slurry or digestate.  
  • Farm level solution or mobile unit for several farmers in the area.
  • Producing high quality fertilizer. So no artificial fertilizer is needed.
  • Because it removes the ammonium-N the ammonium (NH3 ) emission for the digestate or manure is reduced.

Linked ProductLiquid ammonia sulphate or ammonia nitrate from digestate or slurries stripped and scrubbed with H2SO4 or HNO3 by "Circular Values"process, ID: 266

Basic information

Vendor:
Country:
Netherlands
Technology main category:
Physic-chemical nitrogen recovery from manure, digestate and wastewaters: separation, stripping and membrane processes
Technology subcategory:
Stripping + Scrubbing

Languages

Summary:

Technologie zur N-Rückgewinnung als flüssiges Ammoniumsulfat oder Ammoniumnitrat ausgehend von abgetrennter flüssiger Aufschlämmung mit Stripp- und Waschprozess “Circular Values“

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Technologie de récupération d’azote et de phosphatesous la forme de sulfate d'ammonium liquide ou du nitrate d'ammonium à partir de la part liquide séparéeissue d’un décapage « Valeurs Circulaires » et puisd’un processus de lavage 

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Tecnología para la recuperación de N en forma de nitrato o sulfato amónico procedente de la separación de la fracción líquida de los purines mediante el proceso de stripping y lavado “Circular Values” 

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Tecnologia per il recupero di N come solfato ammonico o nitrato ammonico liquidi a partire da una sospensione liquida separata mediante il processo di strippaggio e lavaggio "Circular Values"

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Technologie voor N-terugwinning uit gescheiden vloeibare drijfmest met productie van vloeibaar ammoniumsulfaat of ammoniumnitraat d.m.v.het "Circular Values" strip- en schrobproces 

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Technologia odzyskiwania N w postaci ciekłego siarczanu amonu lub azotanu amonu, zaczynając od oddzielnej płynnej zawiesiny z procesem oczyszczania według „wartości okrągłych” 

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N-kinyerés technológia folyékony ammónium-szulfát vagy ammónium-nitrát formájában szétválasztott folyékony iszapból „Circular Values” sztrippeléssel és extrakciós eljárással

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