RU2566993C1 - Method for producing liquid peat-humic fertiliser - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: invention refers to agriculture. A method for producing liquid peat-humic fertiliser involves preparing a mix of the high-pH solution with a humate-containing substance followed by cavitation dispersion of the humate-containing substances at a basis of a specific performance of 1-4 W/cm³ of a mix processing area for 5-10 min; the process of preparing the mix of the solution and humate-containing substance involves water pre-processing by electrolysis; the high-pH water produced thereby is mixed with a peat suspension of humidity 75-85% prepared on activated water, stirred; then the mix of the electrolytically activated water and peat suspension is subjected to cavitation processing in an ultrasound field.

EFFECT: invention enables creating the organo-mineral fertiliser possessing the improved agrochemical effectiveness.

2 cl, 1 ex

Description

The invention relates to methods for producing organic fertilizers from peat containing nutrients.

A known method of producing liquid suspended peat-humic fertilizers, including mixing peat with a 1.0-2.5% aqueous solution of caustic potassium, and mixing peat with an aqueous solution of caustic potassium is carried out in a ratio of 1: 4-5, in the process of mixing the mixture is periodically added caustic potassium, maintaining its concentration in the solution no more than the original, while the addition of caustic potassium to the mixture is stopped when the concentration of humic acids in the solution is stabilized (RU No.2001038, class C05F 11/02, 1993).

The disadvantage of this method is the incomplete translation of humic substances of peat into compounds that could be easily digested by plants.

A known method of producing organomineral fertilizers based on cavitation dispersion of humate-containing substances with the subsequent additional introduction of trace elements, which consists in preliminarily preparing a mixture of an alkali solution with a pH of at least 12 with a humate-containing substance, and then cavitational dispersion is performed by exposure to ultrasonic radiation based on specific power 1 -4 W / cm ³ of a mixture of processing zone for 5-15 min, then added to the mixture phosphoric acid in an amount OJEC which reduces the pH to 2-1, then this solution is treated with ultrasonic radiation of the same parameters for the same time range, then the resulting solution is mixed with alkali in an amount that ensures neutralization of the solution to pH 7-7.5, and then introduced into the resulting liquid humic fertilizer micronutrients (RU No. 2007125368, IPC С05F 11/02, 2007).

The disadvantage of this method is the complexity and multi-stage production, which entails an increase in financial, material and time costs.

The objective of the invention is the creation of organic fertilizers with high agrochemical efficiency, and reducing the cost of the resulting fertilizer.

The technical result is ensured by the fact that a method for producing liquid peat-humic fertilizer, comprising preparing a mixture of a high pH solution with a humate-containing substance, subsequent cavitation dispersion of humate-containing substances from the calculation of the specific power of 1-4 W / cm ³ the processing zone of the mixture for 5-10 minutes while in the process of preparing a mixture of a solution with a humate-containing substance, the water is pre-treated by electrolysis, thus obtained high pH water is mixed with a peat suspension minutes humidity of 75-85%, prepared on an activated water, stirred and then the mixture was activated by the electrolysis of water and peat suspension is subjected to the cavitation treatment in an ultrasonic field, and then the thus treated mixture was filtered.

The main component for the preparation of liquid humic fertilizer is milled peat. The degree of decomposition of peat is 20-45%, humidity 57-70%, ash content 14-15%, contamination with particles of tow, wood and rhizomes larger than 25 mm 10-12%.

Water is preliminarily activated in an electrolysis unit on the obtained water with a high pH of more than 12, a suspension is prepared by mixing it with crushed peat.

Then the suspension of creamy consistency is added to the water activated in the electrolysis unit with a pH of more than 12, and then the mixture is treated in a cavitation field with a specific power of 2-4 W / cc, filtered and a high-quality liquid fertilizer is obtained.

The proposed method allows to obtain natural liquid fertilizer without the use of alkalis and acids for the subsequent neutralization of mixtures, which simplifies the preparation of natural humic fertilizers.

The activation of water in an electrolysis installation allows you to get water with alkaline properties without the introduction of various alkalis and has high chemical activity.

Cavitation treatment of a suspension of peat and water activated by electrolysis ensures efficient and deep extraction of useful substances contained in peat into a solution and, thus, obtaining high-quality humic-containing natural fertilizer for widespread use in the agricultural sector.

Example. Take 500 kg of milled peat with a degree of decomposition of 33%, humidity 59% and ash content of 14% and are subjected to screening and crushing. It is then loaded into a mixer, diluted with pre-activated water in an electrolysis unit with a pH of more than 12 in an amount of 475 liters to a moisture content of 79%, the components are thoroughly mixed for 30 minutes, then a creamy suspension is introduced into water pre-treated by electrolysis with a pH of more than 12 and then the mixture of suspension and activated water is subjected to cavitation treatment with a specific power of 2-4 W / cc for 10-20 minutes. The resulting mixture is filtered and get a natural liquid humic fertilizer for use in agriculture.

The proposed method for producing liquid humic fertilizer is easily implemented in an industrial environment. It turns out a highly effective fertilizer, its use gives good results.

Claims (2)

1. A method of obtaining a liquid peat-humic fertilizer, comprising preparing a mixture of a high pH solution with a humate-containing substance, subsequent cavitation dispersion of humate-containing substances based on the specific power of 1-4 W / cm ^{3 of} the mixture treatment zone for 5-10 minutes, characterized in that in the process of preparing a mixture of a solution with a humate-containing substance, water is pre-treated by electrolysis, thus obtained high pH water is mixed with a peat suspension with a moisture content of 75-85%, prepared th on activated water, mix and then the mixture activated by electrolysis of water and peat suspension is subjected to cavitation treatment in an ultrasonic field. 2. The method according to p. 1, characterized in that the resulting mixture is filtered.