Bioorganic fertilizer of magnesium process desulphurization slag, and preparation method thereof

A bio-organic fertilizer and magnesium desulfurization technology, applied in the field of bio-organic fertilizer and its preparation of magnesium desulfurization slag, can solve the problems of low soil microbial community, easy loss of nutrient elements, and secondary pollution of the environment, and achieve improved soil structure , Improve crop yield and quality, improve the effect of soil quality

Active Publication Date: 2017-05-24
INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only causes a waste of resources of magnesium and sulfur, but also easily causes secondary pollution to the environment.
[0004] In the prior art, some of the bio-organic fertilizers will add inorganic elements, such as magnesium sulfate, magnesium chloride, etc., which are likely to cause certain pollution to the environment
In addition, these bio-organic fertilizers will damage the soil quality to a certain extent, for example, it will cause the soil to appear plate, easy to lose nutrients, and the soil microbial community is low, etc.

Method used

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  • Bioorganic fertilizer of magnesium process desulphurization slag, and preparation method thereof
  • Bioorganic fertilizer of magnesium process desulphurization slag, and preparation method thereof
  • Bioorganic fertilizer of magnesium process desulphurization slag, and preparation method thereof

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preparation example Construction

[0061] The preparation method of the present invention is as above-mentioned bio-organic fertilizer, and each raw material is mixed.

[0062] In the above preparation method, the method of mixing is not particularly limited. Can enumerate a kind of mixing mode, as it can specifically comprise the following steps:

[0063] Mixing the biochar, bentonite and humic acid to form the first component;

[0064] mixing the first component and the magnesium desulfurization slag to form a second component;

[0065] mixing the second component with livestock and poultry manure, rice bran, and fungus bran to form a third component;

[0066] mixing the three components and a sulfur-containing substance to obtain a fourth component;

[0067] And, mixing the fourth component and the compound microbial agent.

[0068] The above-mentioned third component may also include fermentation for 60-84h before being mixed with the sulfur-containing substance, such as fermentation for 60h, 62h, 65h, ...

Embodiment 1

[0076] After crushing 2 parts of citrus sticks and corn stalks and anaerobically cracking them at 400°C for 2.5 hours, the biochar was crushed and passed through a 150-mesh sieve, 5 parts of calcium-based bentonite passed through a 200-mesh sieve and 4 parts of biochar with a pH of 4.0 humic acid is mixed to obtain the first mixture;

[0077] The first mixture was mixed with 5 parts of desulfurization magnesium slag whose free water was 13%, and stirred evenly to obtain the second mixture;

[0078] Mix 28 parts of chicken manure with 80% water content and 30 parts of cow manure with 70% water content, then mix with 9 parts of rice bran and 8.8 parts of fungus manure. The mixture is uniformly mixed with the second mixture, the water content is adjusted to 60%, and the mixture is transferred into an aerobic fermentation tank for aerobic fermentation, which is the third mixture.

[0079] After moving into the fermenter, maintain aeration for 8 minutes, stop for 22 minutes, add t...

Embodiment 2

[0086] After crushing 2.3 parts of peanut shells and corn stalks and anaerobic pyrolysis at 400°C for 2 hours, the biochar was crushed and passed through a 150-mesh sieve, 4.5 parts of calcium-based bentonite passed through a 200-mesh sieve and 3 parts of humic acid with a pH of 4.5 Acids are mixed to obtain a first mixture;

[0087] The first mixture is mixed with 4 parts of desulfurization magnesium slag whose free water is 13%, and stirred evenly to obtain the second mixture;

[0088] Mix 32 parts of pig manure with 82% water content and 32 parts of cow manure with 73% water content, then mix with 5 parts of rice bran and 9 parts of fungus chaff. The mixture is uniformly mixed with the second mixture, the water content is adjusted to 60%, and the mixture is transferred into an aerobic fermentation tank for aerobic fermentation, which is the third mixture.

[0089] After moving into the fermentation tank, keep aeration for 10 minutes, stop for 20 minutes, add the 4 parts of...

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Abstract

The invention discloses a bioorganic fertilizer containing magnesium process desulphurization slag, and a preparation method thereof. The bioorganic fertilizer containing magnesium process desulphurization slag adopts animal manure, germ bran and rice bran as an organic matter source with stable quality; the magnesium process desulphurization slag can regulate the pH value of soil, improve the carbon storage capacity and the middle and trace element content of the soil, improve the granule structure of the soil and increase the output and the quality of crops; charcoal has good hydroscopicity, also has a part of functional hydrophobic groups, and can prevent hardening while adsorbing free water in the desulphurization slag; bentonite has great hydroscopicity, can adsorb the free water in the desulphurization slag, and modifies the desulphurization slag through ion displacement; humic acid can chelate metal ions in the soil and fertilizers, and facilitates transmission of nutrients to crops; and the bioorganic fertilizer also has the advantages of good ion exchange and buffer property, improvement of the structure of the soil, specific ratio of the raw materials, environmental protection, and improvement of the quality of the soil.

Description

technical field [0001] The invention relates to the technical field of resource utilization of industrial waste, in particular to a bio-organic fertilizer of magnesium desulfurization slag and a preparation method thereof. Background technique [0002] High-temperature composting is an effective treatment technology for the harmlessness, reduction and recycling of organic solid waste. However, due to the unbalanced proportion of material components and the influence of improper control of composting conditions, traditional high-temperature composting often easily produces a large amount of 3 Volatile. This not only causes nutrient loss of composting products and reduces fertilizer efficiency, but also causes secondary pollution to the environment, which limits the application and promotion of aerobic composting. Studies have shown that the high temperature period is the main stage of nitrogen loss in the composting process. Compared with the heating period and the cooling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
CPCC05B17/00C05G3/80C05D9/00C05F3/00C05F5/002C05F11/02C05F11/08C05G1/00
Inventor 逄玉万孙明坤张发宝唐拴虎郭少萍付弘婷李苹
Owner INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI
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