JPH11151289A - Deodorant material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To crack malodorous components to an odorless state below the olfactory sensation threshold by mixing active carbon or carbon material, such as incineration ash, into a deodorant material formed by incorporating ferrous sulfate into a cellulosic material or cellulosic material forming member and oxidizing the ferrous sulfate to basic ferric sulfate. SOLUTION: The active carbon or carbon material, such as incineration ash, is mixed into the deodorant material formed by incorporating the ferrous sulfate into the cellulosic material or the cellulosic material forming member and oxidizing the ferrous sulfate to the basic ferric sulfate. Any or plural kinds of pulp, wood flour, natural cotton, cellulose regeneration fibers, fine fibers discharged at the time of paper making and planar or columnar timber are used as the cellulosic material. Further, active carbon, ordinary charcoal and the charcoal in a particle or powder form contg. 10 to 90% carbon generated from combustion furnaces are used as the carbon material. The cellulosic materials which are formed to a sheet-, honeycomb, massive particle-, cotton-, fabric- or deposit-like form are used as the cellulosic material forming member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material for deodorizing human and animal excrement and body odor, deodorizing domestic and collective drainage and spoiled foods, and exhibiting an excellent deodorizing effect against decomposing and spoiling by microorganisms. It is about.

[0002]

2. Description of the Related Art Conventionally, as a deodorizing material for human and animal excrement, there is a deodorizing material disclosed in Japanese Patent No. 1642383.
This material for deodorization is intended to impregnate ferrous sulfate into a fibrous substance and to remove malodor by performing chemical deodorization, and has a considerable effect on deodorization of the excrement. However, it has been found that it is difficult to decompose the excrement and other malodorous components to an odorless state below the olfactory threshold (concentration value ppm at which human odor is felt).

That is, when various confirmation tests were conducted in order to investigate the above-mentioned causes, the above-mentioned conventional deodorizing material was effective for deodorizing ammonia and amines, but had a weak deodorizing performance for mercaptans. It turned out that the odor remained.

In a nuclear power plant or a thermal power plant, marine organisms such as mussels, barnacles and seaweed adhere to and grow on the inner surface of the outlet pipe of the hot drainage pipe, and the pipe diameter of the outlet pipe is reduced. As a result, the same phenomenon occurs, and the cooling efficiency in the furnace decreases. For this reason, the power plant uses manual labor to clean the pipes two or three times a year to remove the marine organisms, but the shellfish removed from the pipes rot and emit a bad smell a few days later. It is the fact that people are receiving claims from the surrounding residents.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned prior art, the present invention is based on a conventional deodorizing material and removes not only human and animal excrement but also other malodorous components such as putrefaction odor of the shellfish. It is an object of the present invention to provide a deodorizing material that can be decomposed to an odorless state having an olfactory threshold or less.

[0006] In order to solve the above-mentioned problems, the present invention has a configuration in which ferrous sulfate is contained in a fibrous material or a molded member of a fibrous material, and the ferrous sulfate is converted into a basic ferrous sulfate. It is characterized by mixing a carbon-based substance such as activated carbon or incinerated ash with a deodorizing material oxidized to ferrous iron.

That is, the inventors of the present invention conducted a comparative test of the effects of various deodorizing materials on the deodorization of the mercaptans. As a result, activated carbon, general charcoal, and carbon generated from a combustion furnace were reduced by 10%. It has been found that particulate or powdered carbon containing up to 90% has an excellent effect on deodorizing mercaptans, so an attempt was made to combine the chemical deodorization of the conventional deodorizing material with the adsorption and deodorization using activated carbon and the like. As a result, when the deodorizing effect was confirmed, the improvement of the deodorizing effect was recognized. As a result, the present invention was accomplished.

Thus, the fibrous substance used in the present invention includes pulp, wood flour, natural cotton or regenerated fibrous fibers, fine fibers discharged during paper production, or plate-like or columnar wood. .

The carbonaceous material also includes activated carbon and ordinary charcoal, and particulate or powdered charcoal containing 10 to 90% of carbon generated from a combustion furnace.

Further, as a fibrous material molded member, there may be mentioned a fibrous material formed into a sheet, a honeycomb, a massive particle, a cotton, a cloth or a kimono.

The mixing ratio between the conventional deodorizing material and the carbon-based deodorizing material according to the present invention is changed according to the composition of the odor component, thereby improving the deodorizing performance and at the same time, increasing the deodorizing area for general household and industrial use. It can be used as a deodorizing material. For example, the mixing ratio of the carbon-based substance to the putrefaction odor of general household garbage is 10 to 50%, the mixing ratio to the odor of human and animal excrement is 20 to 60%, and the 10-70% is effective against putrefaction odor emitted by domestic wastewater,
It is desirable to appropriately determine the concentration based on the odor concentration.

[0012]

Next, an embodiment of the deodorizing material of the present invention will be described. Example 1 A deodorizing material (A) obtained by adding ferrous sulfate to a lump-shaped pulp according to Patent No. 1642383 and oxidizing the ferrous sulfate to basic ferric sulfate, and the deodorizing method The deodorizing material (B) of the present invention prepared by mixing the material and activated carbon in a ratio of 7: 3 is prepared, and both of the deodorizing materials A and B are placed in a fixed amount on the spoiled shellfish, and the remaining materials are left using a gas tech detector tube. The odor was measured and was as shown in Table 1.

[0013]

[Table 1]

A main component of the putrefaction odor of shellfish is 98% of ammonia and amines, and 2% of methyl mercaptan.
And no hydrogen sulfide was generated. However, an odor higher than the olfactory threshold at which humans perceive odor was generated, and the nose was strong. When the deodorizing material A was used, the odor caused by ammonia and amines could be completely removed, but the odor of methyl mercaptan remained. On the other hand, the deodorizing material B of the present invention adsorbed the odor caused by methyl mercaptan and slightly remained the odor caused by ammonia and amines, but did not show any functional odor and was odorless.

From the above results, it has been clarified that by adding the deodorizing effect of the adsorbing action of the activated carbon in the deodorizing material B to the chemical deodorizing effect of the deodorizing material A, it is possible to remove methyl mercaptan with a small generation amount.

Example 2 The same deodorizing materials A and B as in Example 1 were prepared, and a deodorizing test was performed on a general household toilet. The results are shown in Table 2.
Was as shown in FIG.

[0017]

[Table 2]

There are many types of odors in ordinary households, such as odors generated from toilets, garbage, and shoe boxes, body odors of pets and humans, and odors at the time of meals. The components are ammonia, amines,
Methyl mercaptan, hydrogen sulfide, aldehydes, and indoles can be roughly classified. For example, according to gas chromatographic analysis, the scent of coffee is said to be an odor in which 1000 or more components are combined. .

However, a typical odor among them is the odor emitted from the toilet. Therefore, as described above, the odor of the toilet was subjected to the deodorizing test. However, when the deodorizing material B of the present invention was used for deodorizing, the odor caused by ammonia and amines was superior to that of the conventional deodorizing material A. On the other hand, it was confirmed that the deodorizing material B of the present invention can obtain more excellent results in deodorizing odors caused by methyl mercaptan and hydrogen sulfide.

Incidentally, the malodorous components (unit: ppm) when the vaccum carcass discards manure are as follows: ammonia: 50-100 methyl mercaptan: 20-30 hydrogen sulfide: 80-1100 carbon dioxide: 1300-1500 The malodorous components generated in the treatment of manure are ammonia: 50 to 60 methyl mercaptan: 1 to 2 hydrogen sulfide: 250 to 300 amines: 5 to 10 aldehydes: 1 to 2 The deodorizing material B can be expected to have a better deodorizing effect than the conventional deodorizing material A. This is because, as described above, the deodorizing material B of the present invention combines the adsorption and deodorizing effect of activated carbon in addition to the chemical deodorizing effect of the conventional deodorizing material A.

[0021]

The present invention is as described above, and the deodorizing material according to Japanese Patent No. 1642383 which performs a chemical deodorizing action and the carbon-based deodorizing material such as activated carbon which performs an adsorption deodorizing action are mixed at an appropriate mixing ratio. Since the deodorizing material of the present invention obtained by the above method can adsorb and remove methyl mercaptan which could not be removed by the deodorizing material according to the above patent, in recent years, in particular, offensive odor substances and health-inhibiting substances in the air according to the Odor Control Law and the Occupational Safety and Health Regulations. There are many things that can meet the regulatory values of the above and contribute to the improvement of living environment and working conditions.

Furthermore, in recent years, if the deodorizing material of the present invention is used for deodorizing bedding and hospital rooms of so-called bedridden elderly people,
Since the deodorization can be performed extremely effectively, it is possible to dispel the bad reputation conventionally obtained as a result of the rabbit odor. In addition, since the deodorizing material of the present invention can be manufactured at extremely low cost, the hospital environment can be improved at low cost.

Claims (4)

[Claims] 1. A deodorizing material obtained by adding ferrous sulfate to a fibrous material or a molded member of a fibrous material and oxidizing the ferrous sulfate to basic ferric sulfate. A deodorizing material characterized by comprising a mixture of carbonaceous materials. 2. A cellulose-based material comprising one or more of pulp, wood flour, natural cotton, regenerated cellulose fibers, fine fibers discharged during paper production, and plate or columnar wood. 2. The deodorizing material according to 1. 3. The deodorizing material according to claim 1, wherein activated carbon, ordinary carbon, or particulate or powdered carbon containing 10 to 90% of carbon generated from a combustion furnace is used as the carbon-based material. 4. A molded article made of a fibrous material, wherein the fibrous material is formed into a sheet, honeycomb, massive particle, cotton, cloth, or kimono.
4. The deodorizing material according to any one of items 1 to 3.