JP3044223B2 - Deodorant - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a deodorant that quickly and reliably deodorizes malodors generated from putrefactive fermentable organic substances.

(Conventional technology and its problems) Some of them are difficult to withstand bad smells, especially those caused by substances having organic fermentative properties such as manure and kitchen residues. It contains a lot of rich substances, and by performing appropriate deodorization,
The soil can be reduced or used as fertilizer.

As a deodorant for this kind of substance, a general deodorant such as a deodorant by physical adsorption such as activated carbon, a chemical deodorant by a chemical, and a biological deodorant using microorganisms has been used. Have been.

However, for example, in the case of a deodorant using a porous substance suitable for the adsorption action, not only is it difficult to quickly deodorize, but also when the state of saturation is reached, the persistence is poor, and the odorous substance is released by heat. In addition, the chemical deodorant may cause adverse effects peculiar to the substance depending on the substance used. For example, when a large amount of zinc sulfate is used as shown in JP-A-52-99218, heavy metal damage due to accumulation of zinc may occur. In addition, in the case of a deodorant using microorganisms, it is necessary to maintain an environment in which microorganisms can proliferate or inhabit in a stable manner, which tends to be expensive and tends to cause unevenness in the deodorizing effect.

As described above, all of the conventional various deodorizers cannot be expected to have a sufficient deodorizing effect, or cause other inconveniences when physically used as a fertilizer.

In view of the above, the present invention provides a deodorizing agent that quickly and surely deodorizes malodors generated from putrefactive fermentable organic-containing substances, maintains its effect for a long time, and enables the above substances to be reused. The purpose is to do so.

(Means for Solving the Problems) In order to achieve the above object, the first invention deodorant of the present application is configured by mixing zinc sulfate, magnesium sulfate, and potassium hydrogen sulfate.

In the second invention, aluminum sulfate is further added to the components of the first invention.

Zinc sulfate acts as an acid for basic components such as ammonia and amines contained in the above-mentioned odor generating substances, while acting as a base for hydrogen sulfide and fatty acids. That is, when deodorizing a complex odor, both the acid and base properties can be exhibited while being a single component. Moreover, the reaction speed is high and the properties are stable, so that it is convenient for storage and storage. For this reason, as described above, it has been conventionally used as a deodorant. However, when the treated substance after deodorization is reduced to soil, it is necessary to prevent the accumulation of zinc. Therefore, in the present invention, the amount of zinc sulfate is kept as small as possible while paying attention to the excellent deodorizing ability of zinc sulfate.

Magnesium sulfate has high solubility in water, easily forms a double salt with an alkali salt, and not only reacts with the fatty acid itself, but also has a function of promoting the reaction of the zinc sulfate with the fatty acid. The action of zinc sulfate as a base is performed efficiently. In addition, magnesium, which promotes chlorophyll formation of plants and prevents yellowing, is effectively supplied to the soil as a leaf fertilizer.

Potassium hydrogen sulfate is easily obtained by dissolving an equimolar amount of potassium sulfate in sulfuric acid, and shows acidity when dissolved in water. It hardly reacts with hydrogen sulfide and fatty acids, but reacts with ammonia and amines to achieve a deodorizing effect.

The ions K ⁺ dissolved and dissociated in water produce RCOOH (fatty acid) and RCOOK (fatty acid potassium). Potassium is one of the three major fertilizer elements and becomes root manure.

Although potassium hydrogen sulfate is produced at a relatively low price as described above, sodium hydrogen sulfate can be used as a substance having the same deodorizing effect and a lower price. However, in this case, no fertilizing effect can be expected.

Thus, by adding magnesium sulfate and potassium hydrogen sulfate, the present deodorizer minimizes the amount of zinc sulfate added.

Aluminum sulfate is an amphoteric element similar to the above-mentioned zinc sulfate, and effectively acts as an acid on basic components such as ammonia and amines, and is not as effective as zinc sulfate on acids such as fatty acids. Acts as a base. It is easily dissolved in water and the price is low. However, if a large amount is added, the soil is acidified when the treated material is used as a fertilizer, and absorption of phosphate ions is inhibited. Therefore, a relatively small amount is used together with the other components described above.

The present deodorant can be used in both forms as a powder or fine solid deodorant and as a solution or a low concentration slurry liquid deodorant.

The solid form is effective when the malodor generating substance contains a relatively large amount of moisture. The addition ratio is preferably from 0.1 to 5.0% by weight based on the odor-generating substance, and it is desirable to keep it at most 10%. In this solid deodorant, for example, a porous substance such as natural zeolite, activated alumina, silica gel, or activated carbon is mixed. Thus, synergistic deodorization may be performed. Moreover, an aromatic component may be supported on such a porous substance.

The liquid form is suitable when the malodor producing substance is dry and low in moisture. The concentration of the present deodorant in the aqueous solution is preferably 0.5 to 20% by weight. At the time of use, it is used by uniformly spraying or spraying on the odor generating substance. Examples of the additional component include ethylene glycol, propylene glycol, carboxymethyl cellulose, wood acetic acid or acetic acid, water-soluble polyvinyl alcohol, a surfactant, and a fragrance component.

The compounding ratio of the components of the deodorant of the present invention is effective for any of the above-mentioned characteristics of each component, that is, for either the acidic component or the basic component of the malodor generating substance, and what effect when the treated product is reduced to the soil. Is determined in consideration of whether or not to bring. Zinc sulfate and aluminum sulfate effectively act on both acidic and basic components, but if they are contained in a large amount, adverse effects occur when the treated material is reduced to soil. On the other hand, magnesium sulfate and potassium hydrogen sulfate are effective for either acidic or basic malodorous components, but are rich in fertilizer when the treated material is reduced to soil.

The mixing ratio of these three or four types of constituent substances in the present deodorant naturally depends on the contents of the acidic component and the basic component contained in the offensive odor component.
Therefore, for example, if the acidic component is slightly large, it is desirable to increase the content of magnesium sulfate slightly, and conversely, if the basic component is slightly large, it is desirable to increase the content of potassium hydrogen sulfate. As described above, the coexistence of the two substances having different reactivities to the malodorous component has an important significance in the constitution of the present invention. The four types of salts in the deodorant of the present invention all have a common sulfate group, and do not react with each other in an aqueous solution or a solid mixture, and maintain an extremely stable state.

The main odors to which the deodorant of the present invention is applied include a human odor, a sludge odor, a garbage odor, a sewage odor, a moldy odor, a residual odor, a seafood odor, an animal odor, a putrefaction odor, a fermentation odor, and the like. .

 Hereinafter, examples based on the present invention will be described.

(Example) Example 1 70 kg by weight of zinc sulfate, 20% by weight of magnesium sulfate, and sulfuric acid prepared based on the present invention based on 1 kg of kitchen residue as an object discharged from a catering facility providing 3000 meals. 50 g of the present deodorant consisting of 10% by weight of potassium hydrogen (potassium acid sulfate) was almost uniformly added to the surface of the kitchen residue.

After a lapse of one minute, a gas sample was taken from a position 30 mm away from the surface of the object, and the odor concentration was measured by the three-point comparative odor bag analysis method. The odor concentration of the sample to which this deodorant had not been added was measured 10,000 times in the same manner.

The deodorizing effect is equivalent to 99.5%, and the above results show a remarkable deodorizing effect based on the present invention.

Example 2 Zinc sulfate prepared according to the present invention with respect to 0.5 kg of a fishy offal (object) producing a strong odor obtained by extracting the offal of mackerel with boiling water and discarding the supernatant liquid 50% by weight,
20 ml of a 10% by weight aqueous solution of the present deodorant, consisting of 35% by weight of aluminum sulfate, 5% by weight of magnesium sulfate, and 10% by weight of potassium hydrogen sulfate, were sprayed almost uniformly in a spray form.

After 3 minutes, the effect of removing the unpleasant odor was judged by 12 judges. All of the panels judged that the odor intensity was 5 (strong odor) for the object to which the present deodorant was not added, but the addition of this deodorant resulted in 10 out of 12 judges having an odor intensity of 1
(The odor felt faintly or barely) and the remaining two persons determined that the odor intensity was 2 (weak odor).

As a result of the same determination after one day and night, the odor intensity 1 was 9 and the odor intensity 2 was 3 and the continuation of the deodorizing effect could be confirmed.

The above results show a significant deodorizing effect according to the present invention.

Example 3 30 kg by weight of zinc sulfate, 50 wt% of aluminum sulfate prepared according to the present invention, based on 1 kg of raw human urine as an object,
Magnesium sulfate 15% by weight, potassium hydrogen sulfate 5% by weight
30 ml of a 15% aqueous solution of the present deodorant consisting of

After a lapse of 10 minutes, the concentration of ammonia at a distance of 10 mm from the liquid surface of the object was 0.5 ppm.

On the other hand, 8p
pm.

The results of the determination of the odor concentration by the panel of eight persons were as follows. As for the raw urine without addition, five persons had an odor intensity of 4 (strong odor) and three persons had an odor intensity of 3 (odor easily felt).
All the samples after the addition of this deodorant were judged to have an odor intensity of 1 (barely felt odor). Further, it was determined that the odor was substantially odorless when the position of the nostril was 30 cm away from the liquid surface of the object.

(Effects of the Invention) As described above, according to the present invention, zinc sulfate, magnesium sulfate, and potassium hydrogen sulfate are used as components or aluminum sulfate is added to these components. By effectively acting on basic components and / or acidic components, complex odors can be deodorized very quickly.

In addition, since this deodorant uses magnesium sulfate and potassium hydrogen sulfate in combination with zinc sulfate and aluminum sulfate as described above, it is applied to malodorous substances including spoilage fermentable organic substances, and the treated product after deodorization is used. When reduced to soil, not only can the accumulation of zinc and the inhibition of absorption by aluminum sulfate be avoided, but also magnesium and potassium rich in fertilizer can be supplied to the soil, and the above-mentioned odor generating substances can be effectively used. There is something.

Further, since the components of the deodorant of the present invention are unified to sulfate ion-based substances, they can be used in both solid and liquid forms, but are easy to store and handle as extremely stable mixtures. It also has the advantage of being inexpensive to manufacture.

Claims (2)

(57) [Claims] 1. A deodorant comprising zinc sulfate, magnesium sulfate and potassium hydrogen sulfate as components. 2. A deodorant comprising zinc sulfate, magnesium sulfate, aluminum sulfate and potassium hydrogen sulfate.