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Method for harmlessly producing organic fertilizer from feces and weathered coal

A technology of weathering coal and organic fertilizers, applied in nitrogen fertilizers, ammonium salt fertilizers, fertilization devices, etc., can solve the problems of polluting the environment, reducing quality, increasing the amount of organic fertilizer salt, etc., to achieve high fertilizer nutrients, improve quality, and reasonable technology Effect

Pending Publication Date: 2019-09-06
辽宁三谷农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to avoid the nitrogen oxides from nitration reaction overflowing and polluting the environment, this method adopts wet treatment. The disadvantages are: 1. Water needs to be added during the production process, and the water is dried, which consumes energy and time, and increases the cost of the production process.
2. Sulfite is used for oxidation, which increases the salt content of the organic fertilizer, reduces the effective content of the organic fertilizer, and reduces the quality

Method used

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  • Method for harmlessly producing organic fertilizer from feces and weathered coal
  • Method for harmlessly producing organic fertilizer from feces and weathered coal
  • Method for harmlessly producing organic fertilizer from feces and weathered coal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Raw material pretreatment

[0028] Stir the dehydrated feces with a dry basis weight of 30kg and the 80 mesh weathered coal with a dry basis weight of 60kg evenly, add 2kg of sulfuric acid with a concentration of 50%, react at room temperature for 20min, add 1kg of dimethyl sulfoxide, and add a concentration of 2.2kg of 80% nitric acid was nitrated at room temperature for 10 minutes, then 1kg of 60% phosphoric acid was added for phosphorylation at room temperature for 10 minutes, and the material was discharged and aged;

[0029] (2) aging

[0030] During the aging, the thickness of the materials piled up is 1 meter, and it is aged for 48 hours at room temperature under the condition of irradiating with ultraviolet light;

[0031] (3) Chelation reaction

[0032] Fill 10kg of the aged material with 3.2kg of liquid ammonia while stirring on a dry basis, carry out chelation reaction for 15min, the reaction temperature is 90°C-100°C, and then adjust the pH value to 6 ...

Embodiment 2

[0034] (1) Raw material pretreatment

[0035] Stir the dehydrated feces with a dry basis weight of 20kg and the 80 mesh weathered coal with a dry basis weight of 80kg evenly, add 1.5kg of sulfuric acid with a concentration of 80%, react at room temperature for 10min, add 1kg of dimethyl sulfoxide, and add a concentration of 2.5kg of 70% nitric acid was nitrated at room temperature for 10min, then 1kg of 75% phosphoric acid was added for phosphorylation at room temperature for 20min, and the material was discharged and aged;

[0036] (2) aging

[0037] When aging, the thickness of the material piled up is 1 meter, and a 10W ultraviolet lamp is used as the irradiation light source, and it is aged for 48 hours at room temperature under the condition of irradiation with the ultraviolet lamp;

[0038] (3) Chelation reaction

[0039] Fill 10 kg of the aged material with 2.8 kg of liquid ammonia while stirring on a dry basis, carry out chelation reaction for 30 minutes, the reactio...

Embodiment 3

[0041] (1) Raw material pretreatment

[0042] The dry feces with a dry basis weight of 50kg and the 80-mesh weathered coal with a dry basis weight of 50kg are stirred evenly, and the concentration is 1kg of 98% sulfuric acid, reacted at room temperature for 10min, and 1kg of dimethyl sulfoxide is added. 2kg of 98% nitric acid was nitrated at room temperature for 10 minutes, then 1kg of 98% phosphoric acid was added for phosphorylation at room temperature for 10 minutes, and the material was discharged and aged;

[0043] (2) aging

[0044] When aging, the thickness of the material piled up is 1 meter, and it is aged for 48 hours at room temperature under the condition of ultraviolet light irradiation. 2 The aging material is irradiated evenly with 10 10W ultraviolet lamps;

[0045] (3) Chelation reaction

[0046] Add 1.6 kg of liquid ammonia to 10 kg of the aged material on a dry basis while stirring, carry out a chelation reaction at 90°C-100°C for 20 minutes, and adjust th...

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Abstract

A method for harmlessly producing an organic fertilizer from feces and weathered coal comprises the following steps: uniformly stirring dehydrated feces or dry feces and 80 mesh weathered coal, addingsulfuric acid, carrying out a reaction at room temperature for 10-20 min, adding dimethyl sulfoxide, adding nitric acid, carrying out a nitration reaction at room temperature for 10 min, adding 1 part of phosphoric acid, performing phosphorylation at room temperature for 10-20 min, and discharging and aging the obtained material; stacking the aged material to form a thickness of 1 m, and aging the stacked material at normal temperature under the irradiation of an ultraviolet lamp for 48 h; and introducing liquefied ammonia while stirring the aged material to carry out a chelating reaction, and adjusting the obtained solution to 6-8 by using potassium oxide in order to obtain the feces and weathered coal harmlessly treated organic fertilizer. The organic fertilizer has the advantages of reasonable process, high fertilizer nutrient content, and easiness in being absorbed by crops. The content of organic matters in the organic fertilizer produced after harmless treatment of feces reaches50% or above, the total amount of nitrogen, phosphorus and potassium is equal to or more than 14; and the quality indicators of the produced organic fertilizer are better than national industry standards.

Description

technical field [0001] The invention relates to a method for harmlessly producing organic fertilizer from dung weathered coal. Background technique [0002] my country's development of ecological agricultural economic production, reducing the amount of chemical fertilizers, improving soil for agricultural production, increasing soil organic matter, and multiplying soil fertility. The research on organic fertilizers continues to deepen, which will provide ecological, low-carbon, organic, and circular agricultural economics for agricultural production in the future. It has laid technical support and reserves for food security. [0003] Weathered coal is a kind of coal with low calorific value. Due to its low utilization value and limited processing capacity, most of the mined weathered coal is discarded. According to statistics, there are trillions of tons of weathered coal that have been mined and discarded, tens of billion tons of weathered coal that has been restored to its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00
CPCC05C3/00
Inventor 陈建江周全军崔广弛陈佳瑞
Owner 辽宁三谷农业科技有限公司
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