JPH0256216A - Deodorizing method using soil containing earthworm's castings - Google Patents

Abstract

PURPOSE:To enhance the deodorizing effect of soil contg. earthworm's castings by the deodorizing action of wood vinegar as well as to kill ova in the soil, to hinder the incubation of the ova and to prevent the generation of malodor by the death of incubated earthworms by adding a wood vinegar soln. to the soil and using this soil for deodorization. CONSTITUTION:A wood vinegar soln. is sprayed and mixed with soil contg. earthworm's castings. This mixture is stored to kill earthworm's ova and the water content is regulated. The mixture is then filled into a cylinder, etc., and malodorous gas such as the air in a swinery is blown and deodorized. Activated carbon used at the outlet of a deodorizing device so as to remove malodor generated by the death of incubated earthworms can be made unnecessary.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a deodorizing method using worm excrement, and in particular, it is a deodorizing method that does not require activated carbon and has a high deodorizing effect.

[Conventional technology]

A deodorizing method using worm excrement (for example,
10553) is the same biological oxidation method used to deodorize odors generated from garbage, deep bed, sewage treatment facilities, slaughter plants, chemical plants, livestock farms, feed plants, fertilizer plants, etc. It is an effective method compared to activated sludge deodorization method, soil deodorization method, activated carbon adsorption method, etc.

The deodorizing effect of worm excrement is due to the fact that individual feces particles are porous and have the property of absorbing and absorbing odor components. They live there and exert a deodorizing effect, and an appropriate amount of moisture is required to activate these digestive enzymes and bacteria, so they must be kept moist.

However, if the egg-colored worms are mixed in the worm excrement, the egg-colored worms will not cluster in dry conditions (the egg-colored eggs can remain dormant in suspended animation for several weeks to several months in dry conditions); Conditions suitable for oxidation (moisture content 50-60
% by weight), it may be made into a stem or 1. Further larvae may develop.

When the worms that have grown in clusters die, they produce the odor characteristic of worms, and in order to deodorize this odor, the deodorizing gas outlet of the deodorizing device must be filled with activated carbon, and the activated carbon must be replaced when its adsorption capacity is saturated. Not only was it necessary and the work was complicated (it required a large amount of money).

[Problem to be Solved by the Invention 1] The present invention aims to eliminate the need for the use of activated carbon in the above-mentioned prior art.

[Means to solve the problem]

In order to solve the above problem by killing the egg color in the worm excrement, the present invention is a deodorizing method using worm excrement, in which a wood vinegar solution is mixed with the worm excrement,
The present invention provides a deodorizing method using worm excrement, characterized in that after storing the mixture, the moisture content is adjusted and the moisture adjusted product is used.

[Effect]

By adding pyroligneous vinegar to worm excrement, the present invention prevents the formation of egg-colored soil and prevents the generation of bad odors due to the death of clustered worms, and also has a deodorizing effect due to the deodorizing effect of the pyroligneous vinegar itself. It is something that improves.

The wood vinegar solution used in the present invention is an aqueous solution obtained by carbonizing wood, and its composition is, for example, 5 to 6% by weight (hereinafter simply referred to as %) acetic acid, about 3% methyl alcohol,
In addition, it contains acetone, methyl acetate, etc., and although its mechanism of action is not clear, the interaction of these components kills the egg color of worms, allows digestive enzymes and bacteria to survive, while preventing Escherichia coli, Shigella, and typhoid bacteria. In addition to killing bacteria such as bacteria, it also neutralizes various malodorous substances.
It provides a masking effect as well as a deodorizing effect through a chemical reaction.

The water content of worm manure changes depending on the degree of dryness, and the concentration of pyroligneous acid added to the manure changes, so the amount of pyroligneous vinegar added to the manure depends on the above water content, the egg color of the worms, and other contents. The selection is made taking into account the amount of material, processing temperature, etc.

The mixture of excrement and wood vinegar is stored so that the egg-colored worms are killed and the wood vinegar has the deodorizing effect. The storage time is selected in consideration of the egg color and other content of the worms in the manure, the amount of wood vinegar added, the treatment temperature, etc.

After storage, the mixture is used after adjusting the moisture content by adding water until the moisture content is sufficient for the activity of digestive enzymes and bacteria.

[Example] Example 1 While stirring 1 kg of dried worm manure (water content 35%), 10 g of pyroligneous vinegar having the characteristics shown in Table 1 was diluted 20 times and mixed by spraying it onto the above wing. .

The acrylic cylinder shown in Table 1 Cm was filled to a height of 60 cm, air from inside the pig farm was blown in at 25β/min for 30 days, and the odor of the air discharged from the cylinder was examined by smell.

Regarding the odor of the discharged air, not only the odor of the air inside the pig farm was significantly reduced, but also the odor of worm excrement.

Note that in the mixture filled in the cylinder No. 5, no egg-colored stagnation of worms was observed.

Comparative Example 1 An experiment was conducted in the same manner as in Example except that pyroligneous vinegar was not used.

The air discharged from the cylinder had a more foul odor than the air blown into it, and many dead worms were observed in the mixture filled in the cylinder.

[Effect of the Invention 1] According to the present invention, a deodorizing method using worm excrement without using activated carbon was able to improve the deodorizing effect.

After storing the resulting mixture for 1 hour, a diameter of 5 Kawasaki Steel Co., Ltd.

Claims (1)

[Claims] 1. A deodorizing method using worm excrement, which is characterized in that worm excrement is mixed with wood vinegar, the mixture is stored, the moisture is adjusted, and the moisture adjusted product is used. Deodorization method.