Technology for N&P recovery as phosphorus salt and ammonium sulphate from manure and digestate with "SUEZ" process (ID:371)

Input material
liquid manure or liquid biogas digestates
Output product
phosphorus salt, ammonium sulfate, soil improver
Processing capacity
7.000-9.000 t/y
Technology Status
Advanced development stage
Keywords
phosphorus
ammonium sulphate
soil improver
nutrient recovery
sustainable
Technology description

The technology aims at precipitating of phosphorus, nitrogen and the production of soil improver based on manure and liquid biogas digestates. The treatment of the input takes place in several consecutive steps.

  1. Dissolving of all nutrients bound in the solid fraction, especially phosphorus
  2. Solid-liquid separation. The solid output is already nutrient-poor and can be used can be used as a peat substitute product.
  3. Phosphate precipitation from liquor – recovered as phosphorus salt
  4. Nitrogen recovery by stripping as ammonium sulphate

 At the end of the process a nutrient-poor water remains, which can be discharged or used for raining.

Compared with conventional fertilizer production, the life cycle assessment of the process is at least 60% better in the impact categories acidification potential, eutrophication potential, global warming potential, photochemical ozone creation potential and primary energy from nonrenewable resources.

Basic information

Vendor:
Country:
Germany
Technology main category:
Phosphorus precipitation from liquid manure, waste water and drain water
Technology subcategory:
Phosphorus precipitation from manure/digestate

Languages

Summary:

Technologie zur N & P-Rückgewinnung als Phosphorsalz und Ammoniumsulfat aus Gülle und Gärrest nach dem "SUEZ" -Verfahren (ID: 371)

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Technologie de récupération d’azote et de phosphore sous la forme de sels de phosphore et de sulfate d’ammonium à partir de fumiers et de digestats à partir d’un procédé de « Suez » 

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Tecnología para la recuperación de N&P como sal de fósforo y sulfato de amonio procedente de estiércol y digestato obtenido mediante el proceso "SUEZ"

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Tecnologia per il recupero di N&P come sale di fosforo e solfato ammonico a partire da letami e digestati con il processo “SUEZ” 

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Technology voor N&P herwinning als fosforzouten en ammoniumsulfaat van mest en digestaat met “SUEZ” process

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Technologia odzyskiwania N&P w postaci soli fosforu i siarczanu amonu z obornika i pofermentu w procesie „SUEZ” 

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Technológia az N ésP visszanyerésére foszfor-só és ammónium-szulfát formájában trágyából és anaerób fermentált anyagból "SUEZ" eljárással 

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