JPS6044278B2 - Method for obtaining organic matter-containing powder suitable as fertilizer from organic waste - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a processing method for obtaining a powder suitable as fertilizer or feed from various animal excrements such as human excrement and chicken excrement, and organic industrial waste.

Animal manure, chicken manure, and other animal manure can be used as fertilizer, but in this case, these animal manures emit a strange odor, have an unpleasant appearance, are too soft, and are inconvenient to handle. did. Organic waste is also generated from food factories, but these are similarly difficult to handle and require treatment to reduce pollution. According to the present invention, these difficulties can be overcome at once, and a powder material that is extremely easy to handle can be produced.

That is, according to the present invention, calcium oxide and magnesium oxide are mixed in an amount sufficient to heat the cherry blossom waste to about 1000C, and the calcium oxide and magnesium oxide are mixed with organic waste containing moisture. The mixture is reacted with water, and due to the heat generated at the time, the mixture
Provided is a method for obtaining organic matter-containing powder suitable as fertilizer from organic waste, which is characterized by drying by heating to 000C and pulverizing it.

As the animal feces in the present invention, in addition to poultry and livestock feces such as chicken feces, cow feces, and horse feces, human feces can also be used.

These can be used either immediately after being excreted or once dried. Also,
Various organic industrial wastes from food factories etc. are used. To carry out the method of the invention, this organic waste is
Add calcium oxide and magnesium oxide with stirring in the presence of water.

In this case, an appropriate amount of water is present in the reaction system to cause calcium oxide and magnesium oxide to react with water and generate heat, but the amount of water should not be too excessive or too small, and the heat generated at that time will cause the mixture to A heating reaction is carried out to dissolve and decompose proteins such as hair and meat lumps and other foreign substances contained therein, as well as to decompose substances that cause off-flavors, and in an amount that ultimately gives a dry powder mixture. can be,
Such an amount can be appropriately determined by simple experiments. Generally, the raw material to be treated is muddy, and the object of the present invention can be achieved by adding appropriate amounts of calcium oxide and magnesium oxide to such muddy material while stirring. Generally, the amount of calcium oxide and magnesium oxide added is determined by
The ratio is 10 to 100 parts by weight, usually 30 to 5 parts by weight, per 10 parts by weight. Furthermore, the present invention is characterized in that magnesium oxide is further added in addition to calcium oxide.

Magnesium oxide also reacts in the same way as calcium oxide, but unlike calcium oxide, when used as a fertilizer, it has the effect of improving the sweetness and color of rapeseed, tobacco, and fruits, as well as improving the permeability of the fertilizer. It shows the effect of significantly increasing the The amount of magnesium oxide added is not particularly limited, but is about 5 to 90 parts by weight, preferably about 10 to 4 parts by weight, per 100 parts by weight of the magnesium oxide. Furthermore, the method of the present invention allows the addition of other conventional fertilizer and feed ingredients, if necessary.

For example, when obtaining fertilizer, silicic acids such as silicic acid and silicon dioxide can be added, as well as sludge, which has a fertilizer effect and soil improvement effect. To carry out the method of the present invention preferably, the raw material to be treated is first stirred in the presence of water to form a homogeneous slurry, and then calcium oxide and magnesium oxide are added and stirred.

Next, when heat is generated, stop stirring to complete the reaction. The product is then milled to form a powder. When calcium oxide and magnesium oxide are added to the raw material to be treated and stirred as described above, the calcium oxide reacts with the water present in the mixed system and generates a large amount of heat, heating the mixture to around 100'C. be done. Through this heating, the mixture undergoes various chemical reactions,
Eventually, it turns into a powder that is easy to handle. That is,
The added calcium oxide and magnesium oxide react with water and change to alkaline calcium hydroxide and magnesium hydroxide, so proteins, carbohydrates, and other foreign substances contained in the raw materials are dissolved or dissolved by the action of this alkali and heat. It decomposes and no longer retains its original form, and odorous substances also undergo decomposition and no longer emit odors. The product obtained by the present invention is an easy-to-handle powdery product that has completely different properties from the raw material, has no off-odor, and is free of solid foreign matter, and is suitable for use as fertilizer or feed.

The present invention will be explained in more detail with reference to Examples.

Example 1 10 kg of muddy chicken manure (water content 55%) was placed in a stirring type heating device, and 3 kg of calcium oxide containing 3% of soluble magnesium oxide was added and stirred. After stirring, intense heat generation occurred at about 12 to 1 mounds, and water in the mixture began to spew out as steam from the jet nozzle. As time progressed, the steam gradually spouted out strongly, and the mixture was heated to about 100°C. This jetting of steam stopped after about 5 minutes, and the resulting mixture was a yellowish powder. This powdery substance is the result of the hair and fibers contained in the feces being dissolved or decomposed by the action of alkali and heat, and the raw materials are gone.Also, the odor-causing substances in the feces also undergo decomposition. , changed to one that does not emit any strange odor.

Next, the component composition of the powder thus obtained was analyzed, and the results are shown in the following table.

Total amount of nitrogen (N) 1.75% Total amount of phosphoric acid (P2O.) 1.80% Total amount of potassium (K2O) 0.93% Calcium amount (CaO) 21.00% Soluble magnesium amount (MgO) 9.00% In addition to nitrogen, phosphoric acid, and potassium components, it contains calcium that has the effect of improving acidic soil, and is also a soluble compound that serves as a nutrient for plants, makes it easier to absorb fertilizer nutrients from the soil, and improves the function of microorganisms in the soil. It contains magnesium and is extremely suitable as a fertilizer.

Moreover, this magnesium content has good permeability into the soil; when calcium content is sprayed, it only has a permeability of up to 5 to 6 cm, but it shows a significantly greater soil permeability of 40 to 60 cm, making it an excellent fertilizer. It is something that Furthermore, this magnesium content has an excellent retention effect on organic fertilizers. Comparative example: 10k9 chicken manure containing 70% moisture and 30% magnesium oxide
When I added 3 kg of calcium oxide (wt%) and mixed it for about 1 minute, it became a hard slurry.

This mixture was a wet solid, and in this case the amount of calcium oxide added was too low.

Comparative Example 2 Calcium oxide 5K9 mixed with 3% magnesium oxide was added to chicken manure 10K9 with a water content of 55%, and when stirred, water vapor started spewing out in about 5 minutes.When taken out after about 5 minutes, fine particles like those flying in the wind were found. It turned into a powder.

Example 4 30 kg of magnesium oxide was added to 10 kg of chicken manure with a moisture content of 70%.
When I added 2K9 of calcium oxide by weight and stirred it, the heat only rose to about 40 degrees Celsius even if I stirred it once.When I added 2kg of this calcium and stirred it,
Steam spewed out at the first drop, generating heat up to about 100°C and turning into powder.

Claims (1)

[Claims] 1. Mix calcium oxide and magnesium oxide in an amount sufficient to heat the organic waste to about 100°C, and react the calcium oxide and magnesium oxide with the water, and A method for obtaining an organic substance-containing powder suitable as a fertilizer from organic waste, which comprises heating and drying the mixture at about 100° C. due to the heat generated during the process and pulverizing it.