Nitrogen and potassium concentrate from pig manure or digestate with VP-Hobe Manure Valorisation system (ID: 1528)

Input material
Pig manure or digestate
Nutrient content info

N-P-K (%): 0,4-0,4-6,5

Status
Available on the market
Application dose
200-300 kg K2O/ha; application rates depend on crop needs and soil analyses
Type of farming
conventional
Keywords
RENURE
reverse osmosis
Stripper
N-recovery
Evaporation
Product description

The nitrogen and potassium concentrate is produced using the VP-Hobe Manure Valorisation system. The input pig manure or digestate is first separated into a solid and a liquid fraction, using a flotation unit and a belt press sieve. A reverse osmosis unit processes the liquid fraction into a retentate concentrated N/K2O product and a permeate product to be processed in the clean water production. The concentrated N/K2O product will be further de-watered in an evaporator. The liquid passes through a falling film evaporator with mechanical vapour recompression. Heating the liquid in the evaporator causes water to evaporate. A vacuum lowers the boiling point, less energy is needed than when evaporating at normal atmospheric pressure. The ammonia in the incoming liquid is removed from the product flow by stripping and scrubbing the vapour coming out of the evaporator with sulphuric acid into ammonium sulphate. The evaporator reduces the nitrogen and potassium concentrate to 25% DM and 6,5% K2O.

Costs for farmers will be approximately €5-10 per ton ex works. Application can be done using liquid fertilizer application systems.

Linked technology: Technology for N recovery as mineral concentrate, ammonia water and ammonium sulphate from manure/digestate by VP-Hobe manure and digestate valorisation system (ID:669)

Basic information

Vendor:
Country:
Netherlands
Product main category:
Scrubber water and mineral nitrogen concentrates
Product subcategory:
Mineral concentrate

Languages

Summary:

Stickstoff- und Kaliumkonzentrat aus Schweinegülle oder Gärrest mit VP-Hobe-Gülleverwertungssystem 

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Unterlagen:

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Concentré d’azote et de potassium produit à partir de lisier de porc ou de digestat via le système de valorisation d’effluents d’élevage „VP-Hobe” 

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Concentrato di azoto e potassio da letame suino o digestato mediante il sistema di valorizzazione del letame VP-Hobe 

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Stikstof- en kaliumconcentraat uit varkensmest of digestaat met het VP-Hobe mestvalorisatiesysteem 

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Koncentrat azotu i potasu z odchodów świńskich lub pofermentu z systemem waloryzacji obornika VP-Hobe

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Sertéstrágyából vagy anaerob fermentált anyagból származó nitrogén- és káliumkoncentrátum VP-Hobe trágya-hasznosító rendszerrel  előállítva 

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