METHOD FOR RECOVERY OF PHOSPHATE

The present invention provides a method for recovery of phosphate, in the form of magnesium ammonium phosphate (MAP), from a process for treating a biomass material which process comprises a digestion step performed in a digestion tank and includes a pre-treatment step employing a thermal hydrolysis...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HOLTE, HANS RASMUS, NILSEN, PAAL JAHRE
Format: Patent
Sprache:eng ; pol
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Beschreibung
Zusammenfassung:The present invention provides a method for recovery of phosphate, in the form of magnesium ammonium phosphate (MAP), from a process for treating a biomass material which process comprises a digestion step performed in a digestion tank and includes a pre-treatment step employing a thermal hydrolysis, characterized in that a magnesium source is added to the material in the process flow before said flow enters the digestion tank, and phosphate is recovered as MAP as an integral part of a solid or semi-solid digestate product from the digestion tank.