WO2023219507A1 - Method for the recovery of nutrients from vegetable streams - Google Patents
Method for the recovery of nutrients from vegetable streams Download PDFInfo
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- WO2023219507A1 WO2023219507A1 PCT/NL2023/050263 NL2023050263W WO2023219507A1 WO 2023219507 A1 WO2023219507 A1 WO 2023219507A1 NL 2023050263 W NL2023050263 W NL 2023050263W WO 2023219507 A1 WO2023219507 A1 WO 2023219507A1
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F5/00—Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, e.g. from waste originating from industrial processing of raw material of agricultural origin or derived products thereof
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/10—Addition or removal of substances other than water or air to or from the material during the treatment
Definitions
- the present invention relates to a method for the recovery of nutrients from vegetable streams.
- the present invention further relates to the particular use of the nutrients obtained thereby.
- a method for preparing fertilizer from vegetable juice is known from Dutch patent NL 1043459.
- the method known from this comprises the following steps: pressing of plants, resulting in vegetable juice, mineralization of the vegetable juice obtained in an aerobic bioreactor and drawing off of the nitrogen to a separate reactor, filtering of residual organic matter, resulting in clean liquid with minerals without nitrogen and separating of the minerals obtained, after which concentration of the individual elements is carried out.
- 326-336 discloses a method for the recovery of valuable constituents from wastewater from a potato starch factory, wherein five steps are carried out: (i) concentrating to about 4-5% solid matter by reverse osmosis, (ii) precipitating protein by steam injection; (iii) separating and recovering a fertilizer mixture of potassium and other inorganic cations by ion exchange: (iv) separating and recovering amino compounds by ion exchange; and (v) recovery of organic acids (mainly citric acid) and phosphates by ion exchange.
- five steps are carried out: (i) concentrating to about 4-5% solid matter by reverse osmosis, (ii) precipitating protein by steam injection; (iii) separating and recovering a fertilizer mixture of potassium and other inorganic cations by ion exchange: (iv) separating and recovering amino compounds by ion exchange; and (v) recovery of organic acids (mainly citric acid) and phosphates by ion exchange.
- US 6,274,105 relates to a method for producing potassium salts of high purity using agricultural or fermentation byproducts, wherein the following steps take place: supplying an already liquid agricultural or fermentation byproduct, which contains potassium and organic compounds, to a cation exchange resin, then stripping the resin to form a potassium-containing solution, neutralizing and concentrating the potassium-containing solution, and finally crystallizing the potassium salt out of it.
- Nutrients can be divided into two groups, namely micronutrients and macronutrients.
- micronutrients are molybdenum, nickel, copper, zinc and iron.
- macronutrients are phosphorus, magnesium, calcium, potassium, nitrogen, oxygen and carbon. All plants need minerals to grow. They are essential nutrients that the plant obtains together with water from the ground via its roots. A lack of minerals in the ground quickly results in limitation of plant growth. They play an essential role in important enzyme reactions such as photosynthesis and nitrogen fixation. If there is a shortage of one of these elements, the growth of the plant will be hindered, even if all other elements are present to a sufficient extent. Not only the absolute amounts, but also the mutual proportions must be in balance.
- Residues of plants and vegetables but also verge clippings, agricultural and forestry material, heather sods and grass clippings comprise many useful minerals that can be processed to high-grade fertilizers.
- An object of the invention is the recovery of nutrients from vegetable streams.
- Another object of the invention is the use of such nutrients as highgrade fertilizers, particularly for the organic growing of plants.
- the invention as stated in the introduction thus relates to a method for the recovery of nutrients from vegetable streams, said method comprising: i) providing one or more starting materials of vegetable origin, ii) exerting pressure on one or more starting materials according to i) to obtain one or more juice streams, iii) recovering nutrients from the aforementioned one or more juice streams and starting materials of vegetable origin.
- the present inventors have found that with said method, the nutrients still present in the starting materials of vegetable origin may be recovered and may then be used as constituents of high-grade fertilizers, for example for the organic growing of plants.
- the aforementioned one or more starting materials of vegetable origin are selected from the group of residues of plants and vegetables, and liquid residual streams derived from the food industry obtained in the production or processing of beer, maize, sugar, and potato.
- step iii) comprises one or more separation steps, selected from the group of hydrolysis, flocculation, filtration, electrodialysis, crystallization and ion exchange, or a combination thereof.
- the one or more juice streams obtained in step ii) undergo crystallization before step iii) takes place, wherein crystallization is carried out in such a way that separation of one or more of calcium, magnesium and potassium is brought about.
- step iii) comprises a hydrolysis step, after which the stream that has undergone hydrolysis is submitted to a step for obtaining a proteinrich stream and a protein-depleted stream.
- the hydrolysis step is selected for example from the group of enzymatic hydrolysis, thermal hydrolysis and acid hydrolysis, or a combination thereof.
- the step for obtaining a protein-rich stream is selected from flocculation, filtration and electrodialysis, or a combination thereof.
- the protein-rich stream obtained is submitted to a homogenization step for obtaining a stream with a high protein content.
- the protein-depleted stream is submitted to a step for the recovery of calcium and magnesium therefrom, wherein a stream rich in calcium and magnesium and a stream low in calcium and magnesium are obtained.
- the step for the recovery of calcium and magnesium is selected from the group of filtration, ion exchange, crystallization and electrodialysis, or a combination thereof.
- the stream low in calcium and magnesium is further submitted to one or more separation steps for obtaining a stream rich in potassium, a stream rich in phosphates and a stream rich in sulfates.
- the aforementioned separation steps are selected from filtration, ion exchange, electrodialysis, crystallization and magnetism, or a combination thereof.
- the stream low in calcium and magnesium is first submitted to one or more separation steps for obtaining a stream rich in potassium, after which the resultant residual stream is submitted to one or more separation steps for obtaining a stream rich in phosphates and the associated residual stream obtained thereby is submitted to one or more separation steps for obtaining a stream rich in sulfates.
- Crystallization may for example be carried out by cooling or evaporation at a certain temperature or by a combination of the two (flash evaporation).
- a certain critical parameter temperature, concentration or vapor pressure
- a certain critical parameter temperature, concentration or vapor pressure
- the crystals can be separated by means of filtration or centrifugation. Washing of the crystal cake is necessary to remove the mother liquor still present, which possibly still contains impurities.
- the crystals may then undergo a drying treatment in a drying system.
- the crystallization step is in particular applied for recovering calcium, magnesium and potassium.
- a crystallization step makes it possible to obtain very pure product streams, particularly product streams rich in calcium, magnesium and potassium. These pure product streams are very suitable as starting material for the formulating of an organic feed to be used for the organic growing of plants, particularly organic cultivation on a substrate.
- the present invention also relates to the use of one or more product streams obtained according to the method described above for the organic growing of plants, particularly organic cultivation on a substrate.
- the present invention also relates to a water-based food composition for the organic growing of plants, comprising one or more product streams obtained according to the method described above.
- oxides/carbonates for example calcium oxide/carbonate, potassium oxide/carbonate, magnesium oxide/carbonate.
- An advantage of crystallization is that pure separation takes place, wherein the elements are separated from each other.
- phosphate as struvite (magnesium ammonium phosphate with the composition Mg(NH4)PC>4 ⁇ 6(H2O)).
- struvite magnesium ammonium phosphate with the composition Mg(NH4)PC>4 ⁇ 6(H2O)
- sodium carbonate can be crystallized, for example by contacting with potassium carbonate, but also calcium oxide by adding oxides/carbonates.
- the present invention will be explained hereunder on the basis of an example.
- the example comprises a figure, in which a flow diagram of the individual process steps is shown.
- Vegetable residual streams 1 for example residues of plants and vegetables but also verge clippings, agricultural and forestry material, heather sods and grass clippings, are used as starting material and are submitted to a pressing step 2.
- Liquid residual streams 3 for example derived from the food industry obtained in the processing of beer, maize, sugar, and potato, are not submitted to a pressing step.
- Fibers 33 may also be separated from the vegetable residual streams 1 , and are processed to cellulose 34.
- the resultant streams are submitted to enzymatic hydrolysis 4 and/or mechanical hydrolysis 5.
- a crystallization step is carried out, wherein separation of one or more of calcium, magnesium and potassium is brought about.
- the resultant streams are submitted to a flocculation step 6, filtration step 7 and/or electrodialysis 8 of protein.
- the stream obtained is submitted to a step for the recovery of calcium and magnesium, particularly by ion exchange 9 and/or filtration 10. It is also possible in a certain embodiment to carry out one or more of steps 9 and 10 by means of crystallization in order to bring about separation of one or more of calcium and magnesium.
- the stream obtained thereby is submitted to a step 25 for homogenizing proteins, after which a concentration step 29 is then carried out.
- step 28 calcium and magnesium are separated from each other by means of electrodialysis, and then a concentration step 32 takes place.
- calcium is recovered by ion exchange 26 for obtaining a concentrated calcium- containing stream 30.
- magnesium is recovered by ion exchange 27 for obtaining a concentrated magnesium-containing stream 31.
- ion exchange 27 is also possible for carrying out one or more of steps 26, 27 and 28 by means of crystallization in order to bring about separation of one or more of calcium and magnesium.
- the stream obtained from flocculation step 6, filtration step 7 and/or electrodialysis 8 is stripped of potassium, particularly by filtration 11 , ion exchange 12, electrodialysis 13, wherein a concentrated potassium-containing stream 14 is obtained. According to an embodiment (not shown) is also possible for carrying out one or more of steps 11 , 12 and 13 by means of crystallization in order to bring about separation of potassium.
- the stream obtained from flocculation step 6, filtration step 7 and/or electrodialysis 8 is stripped of phosphates, in particular by electrodialysis 15, magnetization 16, filtration 17 and/or ion exchange 18, wherein a concentrated phosphate-containing stream 19 is obtained.
- the stream obtained from flocculation step 6, filtration step 7 and/or electrodialysis 8 is stripped of sulfates, particularly by filtration 20, electrodialysis 21 , bipolar electrodialysis 22 and/or ion exchange 23, wherein a concentrated sulfate-containing stream 24 is obtained.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Botany (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Fertilizers (AREA)
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Abstract
The present invention relates to a method for the recovery of nutrients from vegetable streams. The present invention further relates to the particular use of the nutrients obtained thereby. One aim of the present invention is the use of such nutrients as high-grade fertilizers, particularly for the organic growing of plants.
Description
Title: Method for the recovery of nutrients from vegetable streams
Description
The present invention relates to a method for the recovery of nutrients from vegetable streams. The present invention further relates to the particular use of the nutrients obtained thereby.
A method for preparing fertilizer from vegetable juice is known from Dutch patent NL 1043459. The method known from this comprises the following steps: pressing of plants, resulting in vegetable juice, mineralization of the vegetable juice obtained in an aerobic bioreactor and drawing off of the nitrogen to a separate reactor, filtering of residual organic matter, resulting in clean liquid with minerals without nitrogen and separating of the minerals obtained, after which concentration of the individual elements is carried out.
A scientific publication dating from 1970 by Heisler E.G. et al., titled "Potato starch factory waste effluents I. Recovery of potassium and other inorganic cations", 1970, American Potato Journal, vol. 47, p. 326-336” discloses a method for the recovery of valuable constituents from wastewater from a potato starch factory, wherein five steps are carried out: (i) concentrating to about 4-5% solid matter by reverse osmosis, (ii) precipitating protein by steam injection; (iii) separating and recovering a fertilizer mixture of potassium and other inorganic cations by ion exchange: (iv) separating and recovering amino compounds by ion exchange; and (v) recovery of organic acids (mainly citric acid) and phosphates by ion exchange.
US 6,274,105 relates to a method for producing potassium salts of high purity using agricultural or fermentation byproducts, wherein the following steps take place: supplying an already liquid agricultural or fermentation byproduct, which contains potassium and organic compounds, to a cation exchange resin, then stripping the resin to form a potassium-containing solution, neutralizing and concentrating the potassium-containing solution, and finally crystallizing the potassium salt out of it.
From CN 102319592 it is known to recover cations, particularly K and Ca, by ion exchange.
Nutrients can be divided into two groups, namely micronutrients and macronutrients. Examples of micronutrients are molybdenum, nickel, copper, zinc and iron. Examples of macronutrients are phosphorus, magnesium, calcium,
potassium, nitrogen, oxygen and carbon. All plants need minerals to grow. They are essential nutrients that the plant obtains together with water from the ground via its roots. A lack of minerals in the ground quickly results in limitation of plant growth. They play an essential role in important enzyme reactions such as photosynthesis and nitrogen fixation. If there is a shortage of one of these elements, the growth of the plant will be hindered, even if all other elements are present to a sufficient extent. Not only the absolute amounts, but also the mutual proportions must be in balance. In the case of shortages or unbalanced feeding, symptoms may develop such as leaf discoloration. For a qualitatively and quantitatively good plant yield it is thus important that there are sufficient nutrients for the plants, in addition to favorable growth prerequisites in the ground such as structure, acidity and supply of nutrients.
For the organic cultivation of plants it is desirable that nutrients of organic origin are applied. An organic grower cultivates without chemical and synthetic pesticides and certainly does not use any artificial fertilizer. Organic is a protected concept and a product may only be sold as organic if it meets the legal requirements of the Ell. In the Netherlands, Skal is the independent organization that ensures that organic growers adhere to these regulations. The growers then receive a Skal certificate. The ELI-BIO logo and the Skal number: NL-BIO01 may only be used with this certificate.
Residues of plants and vegetables but also verge clippings, agricultural and forestry material, heather sods and grass clippings comprise many useful minerals that can be processed to high-grade fertilizers.
An object of the invention is the recovery of nutrients from vegetable streams.
Another object of the invention is the use of such nutrients as highgrade fertilizers, particularly for the organic growing of plants.
The invention as stated in the introduction thus relates to a method for the recovery of nutrients from vegetable streams, said method comprising: i) providing one or more starting materials of vegetable origin, ii) exerting pressure on one or more starting materials according to i) to obtain one or more juice streams, iii) recovering nutrients from the aforementioned one or more juice streams and starting materials of vegetable origin.
The present inventors have found that with said method, the nutrients still present in the starting materials of vegetable origin may be recovered and may then be used as constituents of high-grade fertilizers, for example for the organic growing of plants.
In an example, the aforementioned one or more starting materials of vegetable origin are selected from the group of residues of plants and vegetables, and liquid residual streams derived from the food industry obtained in the production or processing of beer, maize, sugar, and potato.
In an example, step iii) comprises one or more separation steps, selected from the group of hydrolysis, flocculation, filtration, electrodialysis, crystallization and ion exchange, or a combination thereof.
In an example, the one or more juice streams obtained in step ii) undergo crystallization before step iii) takes place, wherein crystallization is carried out in such a way that separation of one or more of calcium, magnesium and potassium is brought about.
In an example, step iii) comprises a hydrolysis step, after which the stream that has undergone hydrolysis is submitted to a step for obtaining a proteinrich stream and a protein-depleted stream. The hydrolysis step is selected for example from the group of enzymatic hydrolysis, thermal hydrolysis and acid hydrolysis, or a combination thereof.
In an example, the step for obtaining a protein-rich stream is selected from flocculation, filtration and electrodialysis, or a combination thereof.
In an example, the protein-rich stream obtained is submitted to a homogenization step for obtaining a stream with a high protein content.
In an example, the protein-depleted stream is submitted to a step for the recovery of calcium and magnesium therefrom, wherein a stream rich in calcium and magnesium and a stream low in calcium and magnesium are obtained.
In an example, the step for the recovery of calcium and magnesium is selected from the group of filtration, ion exchange, crystallization and electrodialysis, or a combination thereof.
In an example, the stream low in calcium and magnesium is further submitted to one or more separation steps for obtaining a stream rich in potassium, a stream rich in phosphates and a stream rich in sulfates.
In an example, the aforementioned separation steps are selected from filtration, ion exchange, electrodialysis, crystallization and magnetism, or a combination thereof.
In an example, the stream low in calcium and magnesium is first submitted to one or more separation steps for obtaining a stream rich in potassium, after which the resultant residual stream is submitted to one or more separation steps for obtaining a stream rich in phosphates and the associated residual stream obtained thereby is submitted to one or more separation steps for obtaining a stream rich in sulfates.
Crystallization may for example be carried out by cooling or evaporation at a certain temperature or by a combination of the two (flash evaporation). To make the crystallization process possible thermodynamically, a certain critical parameter (temperature, concentration or vapor pressure) must be exceeded. In crystallization, a solid with an ordered crystal structure is thus formed from a liquid. After crystallization, the crystals can be separated by means of filtration or centrifugation. Washing of the crystal cake is necessary to remove the mother liquor still present, which possibly still contains impurities. The crystals may then undergo a drying treatment in a drying system. The crystallization step is in particular applied for recovering calcium, magnesium and potassium. A crystallization step makes it possible to obtain very pure product streams, particularly product streams rich in calcium, magnesium and potassium. These pure product streams are very suitable as starting material for the formulating of an organic feed to be used for the organic growing of plants, particularly organic cultivation on a substrate.
The present invention also relates to the use of one or more product streams obtained according to the method described above for the organic growing of plants, particularly organic cultivation on a substrate.
The present invention also relates to a water-based food composition for the organic growing of plants, comprising one or more product streams obtained according to the method described above.
The present inventors found that specific elements present in vegetable juices could be crystallized by adding oxides/carbonates, for example calcium oxide/carbonate, potassium oxide/carbonate, magnesium oxide/carbonate. An advantage of crystallization is that pure separation takes place, wherein the
elements are separated from each other. Thus, in a certain embodiment it was found to be possible to precipitate calcium as calcium carbonate without magnesium. It is also possible in a certain embodiment to precipitate phosphate as struvite (magnesium ammonium phosphate with the composition Mg(NH4)PC>4 ■ 6(H2O)). In a certain embodiment, for example sodium carbonate can be crystallized, for example by contacting with potassium carbonate, but also calcium oxide by adding oxides/carbonates.
The present invention will be explained hereunder on the basis of an example. The example comprises a figure, in which a flow diagram of the individual process steps is shown.
Vegetable residual streams 1 , for example residues of plants and vegetables but also verge clippings, agricultural and forestry material, heather sods and grass clippings, are used as starting material and are submitted to a pressing step 2. Liquid residual streams 3, for example derived from the food industry obtained in the processing of beer, maize, sugar, and potato, are not submitted to a pressing step. Fibers 33 may also be separated from the vegetable residual streams 1 , and are processed to cellulose 34. The resultant streams are submitted to enzymatic hydrolysis 4 and/or mechanical hydrolysis 5. In one embodiment (not shown), before the hydrolysis step takes place, a crystallization step is carried out, wherein separation of one or more of calcium, magnesium and potassium is brought about.
Then the resultant streams are submitted to a flocculation step 6, filtration step 7 and/or electrodialysis 8 of protein. The stream obtained is submitted to a step for the recovery of calcium and magnesium, particularly by ion exchange 9 and/or filtration 10. It is also possible in a certain embodiment to carry out one or more of steps 9 and 10 by means of crystallization in order to bring about separation of one or more of calcium and magnesium. The stream obtained thereby is submitted to a step 25 for homogenizing proteins, after which a concentration step 29 is then carried out. In step 28, calcium and magnesium are separated from each other by means of electrodialysis, and then a concentration step 32 takes place. In particular, calcium is recovered by ion exchange 26 for obtaining a concentrated calcium- containing stream 30. In particular, magnesium is recovered by ion exchange 27 for obtaining a concentrated magnesium-containing stream 31. According to an embodiment (not shown) is also possible for carrying out one or more of steps 26, 27
and 28 by means of crystallization in order to bring about separation of one or more of calcium and magnesium.
The stream obtained from flocculation step 6, filtration step 7 and/or electrodialysis 8 is stripped of potassium, particularly by filtration 11 , ion exchange 12, electrodialysis 13, wherein a concentrated potassium-containing stream 14 is obtained. According to an embodiment (not shown) is also possible for carrying out one or more of steps 11 , 12 and 13 by means of crystallization in order to bring about separation of potassium. The stream obtained from flocculation step 6, filtration step 7 and/or electrodialysis 8 is stripped of phosphates, in particular by electrodialysis 15, magnetization 16, filtration 17 and/or ion exchange 18, wherein a concentrated phosphate-containing stream 19 is obtained. The stream obtained from flocculation step 6, filtration step 7 and/or electrodialysis 8 is stripped of sulfates, particularly by filtration 20, electrodialysis 21 , bipolar electrodialysis 22 and/or ion exchange 23, wherein a concentrated sulfate-containing stream 24 is obtained.
Claims
1. A method for the recovery of nutrients from vegetable streams, said method comprising: i) providing one or more starting materials of vegetable origin, ii) exerting pressure on one or more starting materials according to i) to obtain one or more juice streams, iii) using one or more separation steps for recovering nutrients from the aforementioned one or more juice streams and starting materials of vegetable origin.
2. The method as claimed in claim 1 , characterized in that the aforementioned one or more starting materials of vegetable origin are selected from the group of residues of plants and vegetables, liquid residual streams derived from the food industry obtained in the processing of beer, maize, sugar, and potato.
3. The method as claimed in one or more of the preceding claims, characterized in that said one or more separation steps in step iii) are selected from the group of hydrolysis, flocculation, filtration, electrodialysis, crystallization and ion exchange, or a combination thereof.
4. The method as claimed in one or more of the preceding claims, characterized in that the one or more juice streams obtained in step ii) are submitted to crystallization before step iii) takes place, wherein crystallization is carried out in such a way that separation of one or more of calcium, magnesium and potassium is brought about.
5. The method as claimed in one or more of the preceding claims, characterized in that step iii) comprises a hydrolysis step, after which the stream that has undergone hydrolysis is submitted to a step for obtaining a protein-rich stream and a protein-depleted stream.
6. The method as claimed in claim 5, characterized in that the step for obtaining a protein-rich stream is selected from flocculation, filtration and electrodialysis, or a combination thereof.
7. The method as claimed in claim 6, characterized in that the protein-rich stream obtained is submitted to a homogenization step for obtaining a stream with a high protein content.
8. The method as claimed in one or more of claims 5-7, characterized in that the protein-depleted stream is submitted to a step for the recovery of calcium
and magnesium therefrom, wherein a stream rich in calcium and magnesium and a stream low in calcium and magnesium are obtained.
9. The method as claimed in claim 8, characterized in that the step for the recovery of calcium and magnesium is selected from the group of filtration, ion exchange, crystallization and electrodialysis, or a combination thereof.
10. The method as claimed in claim 8, characterized in that the stream low in calcium and magnesium is further submitted to one or more separation steps for obtaining a stream rich in potassium, a stream rich in phosphates and a stream rich in sulfates.
11. The method as claimed in claim 10, characterized in that the aforementioned separation steps are selected from filtration, ion exchange, crystallization, electrodialysis and magnetism, or a combination thereof.
12. The method as claimed in one or more of claims 10-11 , characterized in that the stream low in calcium and magnesium is first submitted to one or more separation steps for obtaining a stream rich in potassium, after which the resultant residual stream is submitted to one or more separation steps for obtaining a stream rich in phosphates and the associated residual stream obtained thereby is submitted to one or more separation steps for obtaining a stream rich in sulfates.
13. The method as claimed in claim 5, characterized in that the aforementioned hydrolysis step is selected from the group of enzymatic hydrolysis, thermal hydrolysis and acid hydrolysis, or a combination thereof.
14. Use of one or more product streams obtained by the method as claimed in one or more of the preceding claims for the organic growing of plants, particularly organic cultivation on a substrate.
15. A water-based food composition for the organic growing of plants, comprising one or more product streams obtained by the method as claimed in one or more of claims 1-13.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2031846A NL2031846B1 (en) | 2022-05-12 | 2022-05-12 | Method for recovering nutrients from vegetable streams |
| NL2031846 | 2022-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023219507A1 true WO2023219507A1 (en) | 2023-11-16 |
Family
ID=86558722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/NL2023/050263 Ceased WO2023219507A1 (en) | 2022-05-12 | 2023-05-12 | Method for the recovery of nutrients from vegetable streams |
Country Status (2)
| Country | Link |
|---|---|
| NL (1) | NL2031846B1 (en) |
| WO (1) | WO2023219507A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6274105B1 (en) | 1996-06-13 | 2001-08-14 | Avebe B.A. | Process for producing high-purity potassium salts |
| US7670813B2 (en) * | 2006-10-25 | 2010-03-02 | Iogen Energy Corporation | Inorganic salt recovery during processing of lignocellulosic feedstocks |
| CN102319592A (en) | 2011-05-27 | 2012-01-18 | 华南理工大学 | Method for preparing inorganic potassium salt based on sugar making diethyl ether and dilute juice desalination |
| JP5028746B2 (en) * | 2005-03-15 | 2012-09-19 | 栗田工業株式会社 | Method and apparatus for producing liquid manure from starch production wastewater. |
| US20140248676A1 (en) * | 2011-08-31 | 2014-09-04 | Iogen Energy Corporation | Process for recovering salt during a lignocellulosic conversion process |
| US20150118722A1 (en) * | 2011-12-16 | 2015-04-30 | Purac Biochem Bv | Process for the fermentative production of lactic acid from a plant extract the presence of a caustic magnesium salt |
| NL1043459B1 (en) | 2019-11-12 | 2021-07-28 | Biota Holding B V | Process for processing plant juices into fertilizers |
-
2022
- 2022-05-12 NL NL2031846A patent/NL2031846B1/en active
-
2023
- 2023-05-12 WO PCT/NL2023/050263 patent/WO2023219507A1/en not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6274105B1 (en) | 1996-06-13 | 2001-08-14 | Avebe B.A. | Process for producing high-purity potassium salts |
| JP5028746B2 (en) * | 2005-03-15 | 2012-09-19 | 栗田工業株式会社 | Method and apparatus for producing liquid manure from starch production wastewater. |
| US7670813B2 (en) * | 2006-10-25 | 2010-03-02 | Iogen Energy Corporation | Inorganic salt recovery during processing of lignocellulosic feedstocks |
| CN102319592A (en) | 2011-05-27 | 2012-01-18 | 华南理工大学 | Method for preparing inorganic potassium salt based on sugar making diethyl ether and dilute juice desalination |
| US20140248676A1 (en) * | 2011-08-31 | 2014-09-04 | Iogen Energy Corporation | Process for recovering salt during a lignocellulosic conversion process |
| US20150118722A1 (en) * | 2011-12-16 | 2015-04-30 | Purac Biochem Bv | Process for the fermentative production of lactic acid from a plant extract the presence of a caustic magnesium salt |
| NL1043459B1 (en) | 2019-11-12 | 2021-07-28 | Biota Holding B V | Process for processing plant juices into fertilizers |
Non-Patent Citations (1)
| Title |
|---|
| VAN HEISLER E.G. ET AL.: "Potato starch factory waste effluents I. Recovery of potassium and other inorganic cations", AMERICAN POTATO JOURNAL, vol. 47, 1970, pages 326 - 336 |
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| Publication number | Publication date |
|---|---|
| NL2031846B1 (en) | 2023-11-20 |
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