RU2709745C1 - Method for production of complex organomineral substance based on potassium humate - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, in particular, to production of organomineral substance based on potassium humate, which can be used as fertilizer, fodder additives and biologically active additive. Method includes mixing peat, water and potassium hydroxide with bubbling the obtained mixture, exposure to ultraviolet, placing the obtained material into a vacuum reactor for mixing with periodical passing through a closed cycle through a homogenizer. After settling the produced mixture, repeated bubbling is performed and further centrifugation. Raw material is filled in dissolver in the following sequence: 70–85 % of peat, potassium hydroxide, then rest peat. Method includes adding a portion of preliminarily purified water passing through a homogenizer at temperature of 55–65 °C and first slowly mixing with bubbling with an oxygen-ozone mixture, then, while adding the rest of the water, accelerated stirring. Treatment in a vacuum reactor is carried out for not less than 80 minutes.

EFFECT: obtaining a homogeneous pure product with high content of humic acids and low content of heavy metals.

7 cl, 1 dwg

Description

The invention relates to agriculture, namely to the production of organic matter based on potassium humate, which can be used as fertilizer, feed additives and dietary supplements.

There is a method of obtaining a complex organomineral additive based on potassium humate according to patent RU 2347370, according to which lowland peat is cleaned of foreign mechanical impurities and sieved to a particle size of not more than 10 mm. Then peat is mixed with soft water when heated to a temperature of 20-60 ° C, caustic potassium and sodium silicate are added. The contents of the reactor are stirred by sparging with compressed air for 1 hour, and the resulting suspension is infused under normal conditions for 18-24 hours.

Disadvantages: a high-temperature regime is used, in which the protein life is destroyed, and, as a result, the efficiency of the resulting additive and products based on it is reduced.

Due to the short settling process, incomplete extraction of humic substances occurs, the finished product is heterogeneous, containing impurities and impurities, without additional disinfection (ozonation, UV filtration), the product may contain bacteria (conditionally pathogenic environment), also because of the short the settling process, the final product may have a high content of heavy metals, which may be characteristic of the feedstock.

Known as a prototype is known a method of producing a complex organomineral additive based on potassium humate without high temperature treatment according to patent RU 2637126, comprising mixing low-level peat of high decomposition, soft water with a temperature of 30-41 ° C and potassium hydroxide, after which the resulting air sparging is carried out mixtures for 15 minutes using an air compressor, grinding with a hammer mill, ultraviolet disinfection and evacuation, homogenization, removal of wasps order and filtering to obtain a liquid product. When evacuated, they can re-sparge with air at a temperature of 18-25 ° C. The walls of the vacuum reactor can be heated to a temperature of 35-38 ° C and add water with a temperature of about 40 ° C.

Due to the short settling period, not complete extraction of humic acids also occurs, and therefore, the content of humic acids will be lower than in Bioresource, an incomplete extraction process can lead to a reduction in the shelf life of the product and decomposition processes in the final product.

The objective of the present invention is to obtain a pure product with a high content of humic acids (5-6 grams per liter) and a low content of heavy metals that may be contained in the feedstock (peat).

This problem is solved due to the fact that in the method for producing a complex organomineral substance based on potassium humate by mixing peat, water and potassium hydroxide with bubbling the resulting mixture, exposure to ultraviolet light, placing the resulting material in a vacuum reactor for mixing with periodic passage through a closed loop through a homogenizer , sedimentation of the mixture with repeated bubbling and subsequent centrifugation, characterized in that the raw material is poured into a disolver in the next Sequences: 70-85% peat, potassium hydroxide, then the rest of the peat, add part of the water that was previously purified and passed through the homogenizer at a temperature of 55-65 ° C and first slowly mix with bubbling with an oxygen-ozone mixture, then, with the addition of the remaining water, accelerated mixing, and processing in a vacuum reactor is carried out for at least 80 minutes.

Use lowland peat with a high degree of decomposition.

Raw materials are pre-sieved through a sieve with a hole diameter of not more than 6 mm.

Use artesian water, previously passed several stages of purification, including mechanical, disinfection, softening, reducing oxygen content.

Before serving in a vacuum reactor, the mixture is filtered twice.

After processing in a vacuum reactor, the resulting mixture is left to stand for at least 12 hours.

After settling, the liquid fraction is filtered, re-homogenized and re-disinfected with ultraviolet light.

Processing purified water in a homogenizer immediately before being fed to the disolver ensures the achievement of the melt water effect, which in turn improves the quality of the resulting product.

Layer-by-layer loading of the feedstock into the disolver (most peat — potassium hydroxide — the rest of the peat), initial slow mixing, and then with the addition of all the water, an increase in the stirring speed ensures high-quality mixing, and due to bubbling with the oxygen-ozone mixture, intensive mixing of the feed and deposition of heavy metals that may be contained in peat, and which, when sparged with air, do not precipitate, passing into the finished product. If at the first stage load more than 85% of peat, then the effect of mixing will not be achieved. If you load less than 70% of peat in the first stage, then to achieve the required uniformity of mixing, you will have to add the remaining peat not in one step, but in two, which will lengthen the process.

At a temperature of 55-65 ° C, the maximum decomposition of peat and the most intensive extraction of humic acids occur, since the plant remains partially dissolve in the final product. At lower temperatures, plant residues will not dissolve, and at higher temperatures, an undesirable effect on the protein component occurs.

Processing the semi-finished product in a vacuum reactor for at least 80 minutes ensures high-quality homogenization of the mixture, resulting in a high homogeneity of the resulting substance, which allows it to be used not only as fertilizer, but also as a feed additive or dietary supplement.

The technical result consists in obtaining a highly environmentally friendly homogeneous product with a high content of humic acids (5-6 grams per liter) and a low content of heavy metals based on process optimization, including by increasing the uniformity of mixing (layer loading of components, stepwise change in mixing speed), intensive oxidation of the mixed feed (bubbling with an oxygen-ozone mixture), intensive extraction of humic acids (water temperature 55-65 ° C), as well as high-quality homogeneous initialization (long exposure for at least 80 minutes in a vacuum reactor).

In the process of preliminary patent research, no technical solutions with the claimed combination of features were identified. Also not identified technical solutions having signs that match the distinctive features of the proposed method.

The inventive method can find application in industrial production.

The invention is illustrated by the process diagram shown in FIG. 1.

The inventive method for producing a complex organomineral substance based on potassium humate is as follows.

Highly decomposed lowland peat is used.

Peat is sieved through a sieve with a hole diameter of not more than 6 mm to exclude lumps, impurities, etc.

Then the raw materials are poured into the disolver in a certain sequence: first about 80% of peat, then KOH hydroxide, then the remaining sifted peat.

90 liters of water with a temperature of 60 ° C are supplied to the disolver. The choice of the indicated temperature range determines that at a given temperature there is a maximum decomposition of peat and the most intensive extraction of humic acids, since the plant remains partially dissolve in the final product.

Then, the process of slow mixing is switched on (15-30 rpm depending on the density of the mixture, mixing lasts about 35 minutes. At the same time, bubbling with the oxygen-ozone mixture is turned on.

15 minutes after the start of mixing, another 110 liters of water are added at a temperature of 60 ° C and the process of accelerated mixing (500 rpm) is switched on. Then another 100 liters of water are added, after 35 minutes the bubbling and mixing process is completed, the resulting mass is pumped through a filter through a filter to a vacuum reactor.

1200 liters of the mixture from the disolver are loaded into the vacuum reactor and the mixing process in the vacuum reactor begins for about 80 minutes. In the reactor during mixing, this mixture is passed through a homogenizer in a closed cycle (in parallel, it is driven through the homogenizer during mixing in the reactor). After this, the product is pumped to the settling tanks, where it settles for at least 12 hours.

Then the mixture in the sump is bubbled with compressed air (oxygen-ozone mixture), after which the mixture goes to a centrifuge, where liquid and solid fractions are separated. The resulting liquid fraction is re-filtered and fed through a homogenizer to a closed container for storing the finished product with a volume of about 20 m ³ .

The finished product, when bottling in containers, again passes through ultraviolet and a homogenizer, which allows to achieve purity and high quality of the resulting product.

The choice of the indicated sequence of actions is determined by the fact that the result is a pure product (bubbling, UV filtration), during the bubbling process, the raw materials are oxidized with an oxygen-ozone mixture and heavy metals are deposited (which may be contained in peat and can be converted into a finished product with other production methods ), due to which the specified product can be used not only as a fertilizer, but also as a lump additive and dietary supplement.

Claims (7)

1. A method of obtaining a complex organomineral substance based on potassium humate by mixing peat, water and potassium hydroxide with bubbling the resulting mixture, exposure to ultraviolet light, placing the resulting material in a vacuum reactor for stirring with periodic passage through a closed cycle through a homogenizer, settling the resulting mixture with repeated bubbling and subsequent centrifugation, characterized in that the raw material is poured into a dissolver in the following sequence: 70-85% peat, hydroxide to water, then the rest of the peat, add part of the water preliminarily purified and passed through the homogenizer at a temperature of 55-65 ° C and first slowly mix with bubbling with an oxygen-ozone mixture, then with the addition of the rest of the water accelerated mixing, and processing in a vacuum reactor is carried out for not less than 80 minutes 2. The method according to p. 1, characterized in that they use lowland peat with a high degree of decomposition. 3. The method according to p. 1, characterized in that the peat is pre-sieved through a sieve with a hole diameter of not more than 6 mm 4. The method according to p. 1, characterized in that the use of artesian water, previously passed several stages of purification, including mechanical, disinfection, softening, reducing oxygen content. 5. The method according to p. 1, characterized in that before serving in a vacuum reactor, the mixture is filtered twice. 6. The method according to p. 1, characterized in that after processing in a vacuum reactor, the resulting mixture is defended for at least 12 hours 7. The method according to p. 1, characterized in that the liquid fraction after settling is subjected to filtration, re-homogenization and re-disinfection with ultraviolet light.

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