JPH0515869A - Sewage treating deodorant for circulation-type toilet of aircraft - Google Patents

Abstract

PURPOSE:To provide a sewage treating deodorant for circulation-type toilet of aircraft which can easily be used in spite of a wide range of temp. variation, and is portable having a bactericidal effect, and moreover, that shows continuous effect for a certain period for processing sewage. CONSTITUTION:This sewage treating deodorant for circulation-type toilet of aircraft features in that it consists of blue colorant, org. acid, sodium hydrogen carbonate, anhydrous magnesium sulfate, glutaraldehyde, rice starch and perfume.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewage treatment agent which can be conveniently used for aircraft circulation type toilets and has a deodorizing effect.

[0002]

2. Description of the Related Art Conventionally, as an aircraft circulating type toilet waste treatment agent, one that is chemically decomposed by using acid or alkali, or one that is decomposed by being soaked in a solution containing an enzyme or a microorganism is used. ing. Of these, those using formaldehyde or chemicals such as sodium hypochlorite as toilet treatment agents do not give a good impression due to the peculiar odor of the chemicals themselves, and the effective time is short. Alternatively, it cannot be colored blue.
Further, the chlorine-based treating agent has many problems such as generation of chlorine gas when decomposing waste. In addition, there were some concerns about the stability and immediate effect of the deodorizing effect.

Further, the above-mentioned conventional waste treatment agents cannot avoid performance deterioration due to temperature and pH changes. In particular,
There are times when an aircraft flies below zero, and when it is at a tropical airfield, the temperature goes down from 10 degrees Celsius to 40 degrees Celsius,
Toilet odor became dominant and could not be deodorized by conventional methods. In addition, deodorization may be hindered by the effect of adding a strong alkaline substance or the like that is thrown into the toilet. In addition, it is considered necessary to take into consideration the pH change due to foodstuffs that passengers carelessly add.

Further, in the conventional treating agents, it is difficult to remove and deodorize for a relatively long period of time, and chemical agents are mainly used, but for example, formaldehyde and sodium hypochlorite are often used. .. In addition to this, there is also a combination of a microorganism and a plant extract oil, which is a type in which a microorganism decomposes filth and the generated ammonia or hydrogen sulfide is absorbed by the plant extract oil and treated. .. A deodorant utilizing microorganisms decomposes filth, suppresses a bad odor such as ammonia, and adsorbs it. However, if the conditions are not satisfied, it may have an adverse effect. In the case of a combination of microorganisms and plant extracted oil, the microorganisms decompose organic matter in the waste, and the plant extracted oil cannot sufficiently treat the malodor generated by ammonia, hydrogen sulfide, methyl mercaptan and the like. Further, in the above method, since the dye is decomposed, it is not possible to mix the dye having a clean feeling, and the clean feeling is lacking. Furthermore, the deodorizing effect must be maintained between long-distance flights of the aircraft, which is difficult with the conventional methods.

Further, as a main component containing glyoxal or glutaraldehyde, there are many liquid products, which requires a lot of labor for devising the container and working time. Further, even if a dye is added to give a clean feeling, it has been difficult to maintain the composition and the hue.

[0006]

DISCLOSURE OF THE INVENTION In order to overcome the above problems, the present invention has been earnestly studied in order to sufficiently consider the obstruction of the deodorizing effect due to the temperature change in a wide range, and as a result, glutaraldehyde treatment Although it is an agent, in order to respond to a wide range of temperature changes, stabilization of the deodorizing effect is improved, and a clean feeling is imparted by the blue hue, and as a powder product, aircraft circulation is devised to improve workability. The purpose is to provide a sewage treatment deodorant for a toilet.

[0007]

The present invention has been made to solve the above technical problems, and it includes a blue dye, an organic acid, sodium hydrogen carbonate, anhydrous magnesium sulfate, glutaraldehyde, and rice starch. Provided is a sewage treatment deodorant for an aircraft circulating toilet, which is composed of a fragrance.

[0008]

In the sewage treatment deodorant for aircraft circulating type toilet of the present invention, the blue colorant is for coloring toilet sewage blue and giving it a clean feeling. It should be noted that this pigment must be eliminated by the activated sludge treatment during the sewage treatment. The dye is
If it is used in an amount of from 0.6 to 10 parts by weight, and less than 0.6 parts by weight, the color of sewage cannot be impaired, and if it exceeds 10 parts by weight, it becomes dark, which is not good. The dye may be powder such as thiazine type, triphenylmethane type and oxazine type. In addition to these, natural pigments such as gardenia and spirulina can be used.

Further, the organic acid suppresses a foul odor source such as ammonia in toilet wastewater, and at the same time, p
It prevents H from migrating to the alkaline side and causing corrosion of the aircraft circulating toilet base material. Specifically, malic acid,
Suitable are citric acid, tartaric acid, maleic acid and the like. The amount is preferably in the range of 15 to 20 parts by weight. If it is less than 15 parts by weight, the above-mentioned function is not achieved, and if it exceeds 20 parts by weight, the acidity becomes strong, which is not good. Sodium hydrogencarbonate is used as a foaming agent together with an organic acid to sufficiently diffuse the agent, and further keeps the pH of the aircraft circulatory toilet filth almost neutral. Anhydrous magnesium sulfate is necessary as an organic acid having a high hygroscopic property and as a water adsorbent for a liquid component to be used, in order to enhance the storage stability of the sewage treatment deodorant for aircraft circulating type toilet of the present invention. The amount is preferably from 5 to 10 parts by weight, and when the amount is less than 5 parts by weight, the hygroscopicity is insufficient, and even when it exceeds 10 parts by weight, the ability is not changed.

Glutaraldehyde has a bactericidal property and is necessary for fixing and deodorizing the bad odor generated by dirty water in an aircraft circulation type toilet. The amount is preferably 20 to 30 parts by weight. If it is less than 20 parts by weight, deodorization is weak and 30
It does not change even if it exceeds the weight part. Usually, it is used in the form of an aqueous solution. In the present invention, as a carrier for adsorbing this aqueous solution,
The following starch is used. Rice starch is used as a carrier that adsorbs and occludes glutaraldehyde itself, water contained in glutaraldehyde, and liquid components of perfume, and removes and releases with time. Rice starch is
Its particle size, specific surface area and surface morphology meet these purposes, and in particular, it adsorbs or occludes glutaraldehyde, which is the center of the deodorant, and gradually releases it over time to deodorize, Deodorant effect is long-term effective. The amount is preferably in the range of 30 to 50 parts by weight. If it is less than 30 parts by weight, it is insufficient to adsorb the liquid component, and if it exceeds 50 parts by weight, the effect is not changed. INDUSTRIAL APPLICABILITY The sewage treatment deodorant for an aircraft circulating type toilet of the present invention can exert its deodorizing effect sufficiently effectively simply by being put in from a toilet pot. Conventional liquid treatment agents are inconvenient to carry and also require containers such as bottles, but the treatment agent of the present invention does not require a container, becomes lighter, and even when it overflows to the outside. Because of the powder, it does not flow out widely.

Further, the fragrance is necessary to some extent in order to give a clean feeling to a person who uses an aircraft circulation type toilet. Generally, a bouquet tone, a citrus tone, a lemon tone and the like are used. The amount is preferably in the range of 2 to 5 parts by weight. If the amount is less than 2 parts by weight, the odor of the fragrance is lacking. Furthermore, in the treating agent of the present invention, a surfactant, especially a foaming agent, should not be added to the constituent elements. The reason is that aeration is performed in activated sludge, but at that time, bubbles colored with a blue dye are generated at the initial stage of the aeration, and even when the bubbles are actually decolorized, the bubbles are blue. It is not preferable because it remains as it is.

Further, the organic acid has a relaxing effect so as not to be affected by the acidity and alkalinity of wastewater,
It can be adjusted and is also effective for ammonia treatment. Further, since anhydrous magnesium sulfate powder has hygroscopicity, it has an effect of always maintaining a dry powder state.

Next, the sewage treatment deodorant for aircraft circulating type toilet of the present invention will be specifically described by way of examples, but the present invention is not limited thereto.

[0014]

EXAMPLE Methylene blue-0.7 g, citric acid 20 g,
3 g of lemon oil, 10 g of sodium hydrogen carbonate, 7 g of anhydrous magnesium sulfate, 25 g of glutaraldehyde and 32.3 g of rice starch were mixed in an agate bowl to obtain a powdery treatment agent. Next, the results of using 98 g of the prepared powder processing agent are shown. The sewage treatment deodorant for aircraft circulation type toilets as the above test was put in the toilet and heated to a high temperature of 40 ° C.
Hold for 4 hours, measure each component of ammonia, hydrogen sulfide and methyl mercaptan at room temperature with a Kitagawa-type detector tube, and then hold at low temperature 0 ° C for 24 hours, then at room temperature,
It was measured with a Kitagawa detector tube. The results are shown in Table 1.

[Result]

[Table 1]

[0016]

As described above, the sewage treatment deodorant for aircraft circulating type toilet of the present invention has the above effects. Summarizing them, the following remarkable technical effects are obtained. That is, the sewage treatment deodorant for aircraft circulation type toilet of the present invention can be used easily, is convenient to carry, and has a certain period of time for use of toilet sewage, despite a wide range of temperature changes. The effect can be continuously exerted. That is, it was possible to continue for a long period of time, and to maintain the deodorizing effect which was not originally predicted, almost completely in the long term. Secondly, glutaraldehyde, which has a deodorizing effect, is adsorbed and stored in rice starch,
It does not elute immediately in water, but gradually elutes over a long period of time, showing its effect, and the deodorizing effect can be maintained for an extremely long time. Third
In addition, the deodorizing property in a short time is covered by the synergistic effect of the masking by the fragrance and the organic acid, the blue dye can be retained for a long time, and it does not interfere with the microorganism growth during the activated sludge treatment. -Provide a feeling. Fourthly, since it is a powder, it is easy to handle.

Claims (1)

Claims: 1. A sewage treatment system for an aircraft circulation type toilet comprising a blue dye, an organic acid, sodium hydrogen carbonate, anhydrous magnesium sulfate, glutaraldehyde, rice starch, and a fragrance. Odorant.