Method and system for providing plants with water comprising a high nitrate content
AssigneesVan der Knaap Diensten B.V., Triqua International B.V.
InventorsCarolus Wilhelmus Maria De Bruijn, Arnaud Marinus Aart Duine
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Abstract
The present invention relates to a method for producing water having a stable high nitrate content, an organic fertilizer comprising the water having a stable high nitrate content thus produced, and use of the water having a stable high nitrate content in a method for the organic cultivating of a plant in a substrate. The present invention further relates to a continuous flow system for supplying plants with the water having a stable high nitrate content.
Claims5
A method for producing water having a stable nitrate content of between 10-200 mmol/l in a continuous flow system, the method comprising:
- a) contacting water comprising organic matter having at least 100 ppm of nitrogen compounds with ammonification and nitrifying bacteria to obtain water having a nitrate content of between 10-200 mmol/l;
- b) passing the water obtained in step a) through a membrane to separate organic matter, fungi, and/or bacteria from the water, wherein the membrane has a pore size of between 0.01-0.1 μm;
- and
- c) optionally collecting the water, which has a stable nitrate content of between 10-200 mmol/l and which is substantially free of organic matter, fungi, and/or bacteria,
- wherein no extra mineral salt is added to the water, wherein the stable nitrate content is the result of the step of passing the water through the membrane, and wherein the nitrate content of the water is stable for at least one week, and
- wherein the continuous flow system comprises a bioreactor in which both ammonification and nitrifying bacteria are employed and wherein the bioreactor comprises the membrane to separate organic matter, fungi, and/or bacteria from the water.
Dependencies are inferred from the claim text.