Ductor Oy

Ilona Oksanen

Kerttu Koskenniemi

Susanna Kääriäinen

Nina Virolainen

Saara Hernesniemi

Minna Lahtinen

Elisa Lensu

Juha Karjalainen

Laura Tolvanen

Susanna Kaariainen

The invention provides a process for producing ammonia or ammonium from an organic material by fermenting a medium comprising organic material in the presence of a mixed bacterial population capable of ammonification, wherein the fermenting is under conditions, and for a sufficient period of time, to produce a fermentation product that comprises ammonia or ammonium. The organic material includes nitrogenous compounds suitable for conversion to ammonia or ammonium.

Extraction of nitrogen from organic materials through ammonification by mixed bacterial populations

The invention provides a process for producing phosphate from an organic material, the method including the steps of (a) fermenting an organic material in a medium in the presence of at least one microorganism, wherein the fermenting is under conditions, and for a sufficient period of time, to produce a fermentation product; (b) treating the solids of the fermentation product with acid, in a medium, e.g., aqueous medium, to solubilize phosphates from the fermentation product; wherein the organic material, and thus the solids of the fermentation product, includes bone suitable for extraction of phosphates.

Method for recovering phosphorus from organic materials

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Helsinki, Finland

Ilona Oksanen