Lignite with high humic acid content, coal humic acid soil hazards

Hello, there is also lignite in Shanxi, but it depends on the region, and there are some small enterprises in Shanxi that produce 20-30 tons of humic acid per day, but I don't know how much the content is, but almost all the products produced will not stop production, and all the products produced will go to Henan. Shandong is shipped out by car, and you can rest assured that it is relatively cheap. If you want to know more information, then add 877748286

Lignite is the product of the second stage of coal-forming process (diagenesis), and it does not contain humic acid until the bituminous coal stage. The humic acid content of lignite is generally 1% 85.

Lignite is mostly brown in appearance, and a few are black. According to the degree of depth, it can be divided into: (1) soil-like lignite.

The degree of coalification is shallow, the carbon content is low, and the humic acid content is high (generally above 40). (2) Bright lignite. The degree of coalification is deep, the carbon content is high, and the humic acid content is low (generally 1% 10), and the humic acid content can be increased by chemical oxidation.

3) Dense lignite. Between (1) and (2), the general humic acid content can reach about 30. Lignite humic acid has high physical, chemical and biological activities, and is one of the important factors of coal humic acid.

The classification methods of lignite vary from country to country, and lignite is divided into two types: young lignite (PM 30) and old lignite (PM 30% 50) according to light transmittance (PM).

The world's lignite reserves are 100 million tons. In 1985, China's proven lignite reserves were 100 million tons, ranking third in the world. China's lignite reserves account for the country's coal reserves, mainly concentrated in Inner Mongolia, Northeast China, Yunnan and other places.

Lignite is a young type of coal, while humic acid is a component of lignite that is soluble in an alkaline solution. Coal was produced by plants hundreds of thousands of years ago, and with the age from far to near, coal is divided into four categories: anthracite, bituminous coal, lignite and peat. Among them, lignite and peat contain humic acid, and the other two do not contain humic acid.

Of course, if anthracite and bituminous coal are exposed to the air for a long time (outcropping coal), humic acid will gradually be produced, which is called "regenerated humic acid".

Modified lignite and modified humic acid are not exactly the same concept. Modified humic acid refers to all kinds of humic acid that have undergone chemical treatment (such as oxidation, sulfonation, degradation, halogenation, nitration, polycondensation, ammoniation, amidation, etc.) (generally humic acid should be extracted in advance and then modified), while modified lignite is the overall chemical treatment of lignite (in which humic acid is also modified at the same time), the modification method is the same as above, but it is not necessary to extract humic acid in advance.

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Cationic lignite is a carbonaceous organic matter, which is made from coal that has been heat-treated, which contains a large amount of organic carbon and hydrocarbons. Potassium humate is an inorganic salt, which is composed of water-soluble potassium ions and humic acid, which contains a large amount of water-soluble potassium ions. The methods and practices to resolve the difference between these two substances are as follows:

1.First of all, it is necessary to understand the chemical collision structure of cationic lignite and potassium humate in order to better understand the difference between them. 2.

Secondly, it is necessary to understand the closed excavation physical properties of cationic lignite and potassium humate in order to better compare the differences between them. 3.Finally, it is important to understand the chemical properties of cationic lignite and potassium humate in order to better compare the differences between them.

Personal tip: When comparing the differences between cationic lignite and potassium humate nuclei, consider their chemical structure, physical properties and chemical properties in order to better understand the differences between them.

The main hazards of saline-alkali soil are: the soil salt content is too high; The concentration of harmful ions (such as Na+, Ci-, HCO3-, CO22-, Mg2+, etc.) is too large; The soil is too alkaline; The soil particles are highly dispersed and the soil structure is poor. Crop growth and development are inhibited.

Long-term application of a large number of humic acids can gradually change the physical and chemical properties of saline-alkali soil.

1. Promote the formation of soil aggregates.

2. Reduce the salt content of the topsoil.

3. Improve soil exchange capacity.

4. Reduce the pH of saline-alkali soil.

Second, the improvement of white clay soil.

White clay soil is mainly distributed in Northeast China. There is a layer of about 5-10cm ash layer at the bottom of this kind of soil cultivated layer, which has poor soil permeability, strong cohesion, high acidity, poor soil structure, weak biological activity, and difficult to penetrate the crop roots, which is the main reason for the low yield of white clay soil.

The application of peat had an important effect on the increase of soil organic matter and the change of soil humic acid composition, which was mainly manifested in the absolute content of humic acid and fulvic acid, which increased significantly, and the treatment with high amount of peat was more obvious. The improvement of peat on white clay soil improves the physical properties and nutrient status of soil, increases the content of soil humus, increases the salt exchange capacity of soil, and creates suitable environmental conditions for crop growth. After the improvement of the soil, the content of available nitrogen and phosphorus was stabilized at the level of 5-15mg 100g soil; The soil water holding capacity is maintained between 40-50%; The capillary porosity is more than 50%, and the soil bulk density is about and so, which basically reaches the physical and chemical indexes of high-yield and stable-yield soil.

After the improved white clay soil, the yield of corn and soybean planting is nearly two percent higher than that before the improvement, and the economic benefits are also very significant.

3. Improvement of red loam soil.

Summary. Hello dear, glad to answer for you! Lignite is a mineral coal with a low degree of coalification. A brown, heise, matte low-grade coal between peat and bituminous coal.

Lignite is something? Where did it come from? How is it used? How do you turn into humic acid?

Hello dear, glad to answer for you! Lignite is a mine with a low degree of coal absorption, and it is the first mine to produce no coal. A brown, heise, matte low-grade coal potato sail between peat and bituminous coal.

How is it used?

Under the action of geothermal heat and pressure, the peat layer becomes lignite due to various changes such as hail compaction, water loss, limb aging, and induration. Mainly produced in Inner Mongolia and Yunnan, Inner Mongolia accounts for 70 of the country's lignite production, ** about 150 200, according to its calorific value to determine Wu Xifan.

How does it turn into humic acid?

Lignite is mostly used as fuel for power plants, but also as a chemical raw material, and some lignite can be used to make sulfonated coal or live charcoal.

This kind of chemical fertilizer made of ammonia, nitrification and other chemical treatments, or the addition of nitrogen, phosphorus, potassium and trace elements, is called humic acid fertilizer.

In the dirt. What happens after you put it in?

What is the difference between toxic and non-toxic?

Pro, it will oxidize after putting it in the soil, and it is a good fertilizer.

Pro, the normal use of lignite is non-toxic, but in the incomplete combustion state, toxic hydrogen sulfide CO (carbon monoxide) will be formed.

Teacher. Can you send me a document related to it?

About lignite. I'm interested in it.

Dear, what do you want?

Summary. Hello dear, glad to answer for you!

Humic acid is added to coal for volatilization: humic acid is a natural organic matter, and its complex relationship with coal has led to controversy in the study of the effect of humic acid on the volatile matter added to it. Some studies have shown that adding humic acid to coal can increase the volatile content in the coal.

This is because humic acid molecules have high lipophilicity, which can adsorb volatile organic compounds in coal, and at the same time, it can also react with hydrocarbon molecules in coal to decompose and release volatiles. However, other studies have shown that adding humic acid to coal does not significantly increase the volatile content of coal. This is because the humic acid molecule is larger and tends to interact with the macromolecular structure in the coal rather than with the small molecular structure in the coal, so it has less influence on the volatile matter in the coal.

In summary, there are different research conclusions on whether humic acid added to coal will increase volatile content. More experiments and studies are needed to better understand the relationship between humic acid and coal.

Will the volatile matter of humic acid increase when added to coal?

Hello dear, glad to answer for you!

Humic acid is added to coal for volatilization: humic acid is a natural organic matter, and its complex relationship with coal has led to controversy in the study of the effect of humic acid on the volatile matter added to it. Some studies have shown that adding humic acid to coal can increase the volatile content in the coal.

This is because humic acid molecules have high lipophilicity, which can adsorb volatile organic compounds in coal to slow spring, and at the same time, it can also react with the hydrocarbon molecules in coal to decompose and release volatiles. However, other studies have shown that adding humic acid to coal does not significantly increase the volatile content of coal. This is because the humic acid molecule is larger and tends to interact with the macromolecular structure in the coal, rather than with the small molecular structure in the coal resistance, so it has less impact on the volatile matter in the coal.

In summary, there are different research conclusions on whether humic acid added to coal will increase volatile content. More experiments and studies are needed to better understand the relationship between humic acid and coal.

Humic acid is a kind of natural organic matter, which is a kind of complex organic matter formed by microbial decomposition and chemical reaction under the long-term action of plant and animal residues in the sedan belt under the long-term action of geological history. It is widely found in ecosystems such as sediments, soils, peat, forests, and grasslands in nature, and is one of the important components of organic matter in soil and water bodies. The molecular structure of humic acid is complex, with a variety of functional groups, such as carboxyl group, phenolic hydroxyl group, methyl group, methylene, etc., with strong chemical reactivity and lipophilicity, can adsorb and chelate inorganic ions and organic matter molecules, for the maintenance and improvement of soil fertility, as well as the absorption and remediation of environmental pollutants have an important role.

Coal can be artificially oxidized (such as treated with air, ozone or nitric acid) to form regenerated humic acid, which can be divided into three components according to the solubility of humic acid in solvents: The part dissolved in acetone or ethanol is called brown humic acid; The insoluble part of acetone is called fulvic acid; The part that dissolves in water or dilute acid is called fulvic acid (also known as fulvic acid).

The basic structure of humic acid macromolecules is an aromatic ring and an aliphatic ring, and the ring is connected with functional groups such as carboxyl group, hydroxyl group, carbonyl group, quinone group, and methoxy group. It has the functions of exchange, adsorption, complexation and chelation with metal ions; As a polyelectrolyte in the dispersion system, it has the functions of coagulation, colloidal dissolution, and dispersion. There is also a certain number of free radicals on the humic acid molecule, which is physiologically active.

Modified humic acid refers to all kinds of humic acid that have undergone chemical treatment (such as oxidation, sulfonation, degradation, halogenation, nitration, polycondensation, ammonia, amidation, etc.) (generally humic acid should be extracted in advance and then modified).