Technology for N&P recovery as digestate starting from vegetable oil waste with pig manure with "VALUVOIL" two-phase anaerobic digestion process (ID:259)

Input material
Vegetable oil waste with pig manure
Output product
Biogas / Digestate
Processing capacity
50 l/h
Technology Status
Prior to market introduction
Keywords
Two-phase anaerobic digestion
agronomic valorization of digestate
Technology description

VALUVOIL technology demonstrates the viability of the improved anaerobic digestion process for biofuel production and the potential uses of the organic by-products for stimulating plant growth and as compost for improving soils.
After determining the agronomic quality of the obtained digestate, it was demonstrated that it was not ecotoxic and that its macro and micro nutrients content (being N the most abundant) conferred it a certain fertilizer character and an optimum agronomic quality. Plant grow assays carried out in growth cambers with different species and soils, also confirmed the results obtained in germination tests, where treated soils showed a higher growth than in control ones, being the highest plant yields obtained at high rates (80 and 120m3/ha).  
Germination test with 2 seeds and different soils were carried out to determine the phytotoxic effect, concluding that high dosages had inhibitory effects but when diluted at proper dosages a stimulant effect on root growth and seed germination was obtained.
Concerning digestate’s effect over soils, it was  demonstrate that they tended to increase soil microbial biomass and activity, particularly when applied at high dose, being the intensity of this effect depending on soil and digestate characteristics.

Linked ProductDigestate from the co-digestion of vegetable oils waste and pig manure by "VALUVOIL" process, ID: 268

Basic information

Vendor:
Country:
Spain
Technology main category:
Biological nutrient recovery: composting, anaerobic digestion, microalgae technology
Technology subcategory:
Anaerobic digestion

Languages

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Technologie zur N & P-Rückgewinnung als Gärrest ausgehend von Pflanzenölabfällen mit Schweinegülle mit zweiphasigem anaeroben Vergärungsprozess “VALUVOIL“

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Technologie de récupération d’azote et de phosphatesous la forme de digestat à partir de déchets d'huile végétale et de fumier de porc par un  «processus de digestion anaérobie en deux phases « VALUVOIL » 

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Tecnología para la recuperación de N y P en forma de digestato procedente de restos de aceites vegetales con purines mediante el proceso de digestión anaerobia en dos fases “VALUVOIL” 

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Tecnologia per il recupero di N&P come digestato a partire da olio vegetale usato e letame suino mediante il processo di digestione anaerobica bifase “VALUVOIL” 

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Technologie voor N&P-terugwinning uit plantaardig olieafval met varkensmest door digestaatproductie met het "VALUVOIL" tweefasig anaëroob vergistingsproces

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Technologia odzyskiwania N&P jako pofermentu zaczynającego się od odpadów oleju roślinnego z odchodów wieprzowych z dwufazowym procesem fermentacji beztlenowej „VALUVOIL"

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N&P kinyerésének technológiája növényi olajhulladék és sertéstrágyával fermentációjával „VALUVOIL” kétfázisú anaerob fermentációs eljárással

 

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