Technology for N & P recovery as liquid and solid organic fertilizer from manure and digestate with decanter centrifuge (ID:1343)

Input material
liquid manure or digestate
Output product
solid fraction and clarified liquid
Processing capacity
2-140m³/h
Technology Status
Available on the market
Keywords
organic fertilizer
decanter
centrifuge
manure and digestate
Technology description

Since decades, decanter centrifuges have been applied widely and successfully for the separation of manure or digestate into a solids fraction and a liquid fraction.  The solids fraction typically contains 70-80% of the original phosphorous and 30-35% of the original nitrogen.  The crumbly cake can be easily transported to distant fields or to a further treatment facility.  The liquid fraction can be applied to local fields or can be further processed via biological or physicochemical treatment.  It is even possible to further polish the liquid fraction via disc stack centrifuge.

Decanter centrifuges are recognized as the mechanical separation technology with the best separation performance per footprint when comparing systems with no addition of coagulants or flocculants, which means it is able to separate more particles compared to filtration technologies.

Basic information

Vendor:
Country:
Germany
Technology main category:
Physic-chemical nitrogen recovery from manure, digestate and wastewaters: separation, stripping and membrane processes
Technology subcategory:
Physical separation

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Technologie zur N & P-Rückgewinnung als flüssiger und fester organischer Dünger aus Gülle und Gärrest mit Dekanterzentrifuge 

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Technologie de récupération d’azote et de phosphore sous la forme de fertilisant organique solide à partir d’effluents d’animaux et de digestat avec un décanteur-centrifugeur 

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Tecnología para la recuperación de N y P en forma de fertilizante orgánico líquido y sólido a partir de estiércol y digestato con un decantador  centrífugo 

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Tecnologia per il recupero di N&P come fertilizzante liquido e solido a partire da letame e digestato mediante una centrifuga a tamburo 

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Technologie voor N- en P-recuperatie uit mest en digestaat als vloeibare en vaste organische meststof door middel van een decanteercentrifuge 

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Technologia odzyskiwania N&P jako płynnego i stałego nawozu organicznego z obornika i pofermentu z wirówką dekantacyjną 

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Technológia a N + P visszanyerésére folyékony és szilárd szerves termésnövelő anyag formájában trágyából és fermentált anyagból dekantáló centrifugával 

 

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