JPH0773700B2 - Sewage treatment agent - Google Patents

Description

TECHNICAL FIELD The present invention relates to a microorganism-based sewage treatment agent. In particular,
The present invention relates to a sewage treatment agent based on microorganisms used in vehicle toilets, which has high cleanliness, has no bad odor, and is pleasant in hue.

[Prior Art] As a conventional vehicle toilet treatment agent, a main agent is a microorganism-free agent, and the main ingredients are a bactericide, a pigment, and a fragrance.

In this case, most of the fungicides are sodium hypochlorite, the dyes are for food additives such as Blue No.-1, Blue No.-2, and the fragrance has a strong residual aroma. The oil and fragrance adsorbed on talc or zeolite was used.

In addition, microorganism-based sewage treatment agents have not been used so far, but especially subtilis (B. su.
btilis) as a main component and decomposes organic waste.
Some have a bacterial count of 10 ⁶ to 10 ⁷ / g. In addition, lactic acid bacteria and soil microorganisms coexist.

In addition, there are various microorganisms in which enzymes such as amylase, protease and lipase coexist.

Conventional microbial-based wastewater treatment agents are considered to be mainly composed of B. subtilis of the genus Bacillus. Such a sewage treatment agent has a small number of bacteria for decomposing the organic filth, and other coexisting bacteria do not promote the filth decomposition. Usually, this type of fungus emits a foul odor by itself, and thus is not suitable for treating foul odors in a vehicle toilet. In addition, there were some microorganisms of the genus Bacillus mixed with enzymes such as amylase, protease and lipase, but they were not practical because the cost of the enzyme was high. For the above reasons, it has been considered that it is technically and economically unsuitable to use the microorganism-based sewage treatment agent for vehicle toilets.

[Problems to be Solved by the Invention] Therefore, the present invention has found a way to solve by a combination of microorganisms as a result of earnestly researching a microorganism-based sewage treatment agent which has not been considered in the past, and based on the findings, The present invention has been made. Therefore, the present invention aims to provide a microbial-based sewage treatment agent for toilets that can decompose organic filth that emits a foul odor in toilet sewage in a short time, almost eliminates odor, and can maintain hue and cleanliness. And That is, the present invention aims to provide a sewage treatment agent which is added to a running vehicle toilet, cleans the toilet, makes it odorless, and makes it odorless and colorless even to wastewater discharged from a sewage treatment plant. And

[Means for Solving the Problems] The gist of the present invention is to add 0.5 to 0.5 parts of a pigment component to 100 parts by weight of a microbial component composed of a microorganism, a medium and a carrier.
A microbial-based sewage treatment agent for toilet, which comprises 2.0 parts by weight and 10 to 60 parts by weight of a fragrance component.
The microorganism component is composed of three or more kinds of microorganisms, and the number of bacteria per 1 g of the microorganism component is Bacillus (Baci).
llus) 10 ⁹ to 10 ¹¹ / g, Streptococcus (Strep
tococcus) 10 ⁷ ~ 10 ⁹ / g, Enterobacter (Ente
Those belonging to the genus robacter) are preferably 10 ⁷ to 10 ⁹ / g.

According to the present invention, as the microorganism in the microorganism component composed of the microorganism, the medium and the carrier, for example, the number of bacteria per 1 g of the microorganism component is bacteria ^{9 9} to 10 ¹¹ / of the genus Bacillus.
g, fungus 10 ^7-1 of Streptococcus (Streptococcus) genus
0 ⁹ / g, Enterobacter bacteria 10 ⁷ -1
With respect to 100 parts by weight of the microbial component which is 0 ⁹ / g, 0.5 to 2.0 parts by weight of the pigment component for adjusting the hue and 10 to 60 parts by weight of the perfume component for substantially reducing the initial unpleasant odor are blended. It was done.

As the microorganisms used in the toilet microorganism-based wastewater treatment agent of the present invention, those mainly composed of B. subtilis among Bacillus cells are preferable. The microbial component of the toilet microbe-based sewage treatment agent of the present invention is composed of a microorganism, a medium and a carrier. The medium serves as food for the microorganism to be used and has a certain composition and a certain amount of agricultural waste. Is used, and spoiled beverages such as soybean dregs, bagasse, and milk are used, and yeast extract, malt extract, and other chemicals can be used in combination as the case may be. The carrier used in the present invention serves as a residence for the microorganism used, and preferably, in the case of an inorganic powder (including a porous body), calcium carbonate, magnesium carbonate, calcium silicate is used, and an organic substance is used. In the case of the powder, wood sawdust can be used.

Regarding the mixing ratio of the sewage treatment agent of the present invention, the number of microorganisms against the microbial component composed of the microorganism, the medium and the carrier is a bacterium of the genus Bacillus, 10 ⁹ to 10 ¹¹ / g, and Streptococcus (Streptococcus). bacteria in 10 ⁷ ~10 ⁹ / g, relative to 100 parts by weight of the microorganism component is 10 ⁷ ~10 ⁹ / g with Enterobacter (Enterobacter) genus bacteria, 0.5 the dye component
Contain 2.0 parts by weight.

This is because the pigment component is 0.5 parts with respect to 100 parts by weight of the microorganism component.
If the amount is less than or equal to parts by weight, the hue is not clear, so cleanliness is not felt, and if it is greater than or equal to 2.0 parts by weight, the hue is too dark and the color cannot be erased at the sewage treatment plant to color the wastewater. Will be polluted by. In addition, 100 microbial components
The reason for blending 10 to 60 parts by weight of the fragrance component with respect to parts by weight is that, with 10 parts by weight or less of the fragrance, it is impossible to mask or neutralize the odor peculiar to the microbial component, and with 60 parts by weight or more, It becomes expensive in terms of cost.

In addition, when the number of microorganisms in the microbial component is three, the number of bacteria per 1 g of the microbial component is 10 ⁹ to 10 ¹¹ / g in bacteria of the genus Bacillus, and Streptococcus
Bacteria in 10 ⁷ ~10 ⁹ / g of the genus, Enterobacter (Enterobacte
r) It is a genus of bacteria and is contained at a rate of 10 ⁷ to 10 ⁹ / g. That is,
When the bacterium of the genus Bacillus is less than 10 ⁹ and the decomposition of starch and protein is insufficient, and when it is 10 ¹¹ / g or more, the odor generated by the bacterium is strong and causes an offensive odor. Further, when the bacteria belonging to the genus Streptococcus is 10 ⁷ or less, the decomposition of sugars such as glucose is insufficient, and when it is 10 ⁹ or more / g or more, the degradability is not so high. In addition, if the bacteria of the genus Enterobacter are less than 10 ⁷ and the decomposition of sugar is insufficient, it is not effective, and if more than 10 ⁹ / g is contained, the number of bacteria producing a yellow pigment increases and the hue is bad. Become. For the above reasons, the toilet microorganism-based sewage treatment agent of the present invention has the above-mentioned mixing ratio.

In addition, the genus Bacillus used for the microorganism-based sewage treatment agent for toilet of the present invention is, in particular, B. su.
btilis) [IAM (Institute of Applied Microbiology;
Abbreviation for useful strain preservation facility, Institute for Applied Microbiology, University of Tokyo;
Similarly, 1168 and 12118] are preferable, but in addition to these, B.natto [IFO (Instit
ute of Fermentation Osaka: Fermentation Research Institute Foundation: Abbreviation; 3009], Coagulans (B.coagulans): [IAM 1115], Macerance (B.mac)
erans) [IAM 1243] may be used together.

Any bacterium belonging to the genus Streptococcus can be used, but S. faecalis [IAM 11
19], S. cremoris [IAM 1150], and S. lactis [IAM 1198].

Also known as Enterobacteriaceae
As a bacterium of the genus robacter), E. sakazakii
[IAM 12660], Agglomerans [IA
M 12659], E. aerogenes [IAM 1183 and 12348] and the like can be used.

Further, the pigment component used in the toilet microbe-based sewage treatment agent of the present invention is preferably blue because it imparts cleanliness to toilet sewage, may be an organic dye, acid dyes, basic dyes, any of the direct dyes are suitable In particular, Blue No. 1 and Blue No. 2 which are food additive colorants are preferable, and methylene blue and the like can also be used. Specifically, Blue No. 1 and Blue No. 2 manufactured by Daiwa Kasei or methylene blue manufactured by Hodogaya Kagaku can be used.

Further, the perfume component used in the toilet microbe-based sewage treatment agent of the present invention is added to impart cleanliness to the toilet sewage, in order to mask or neutralize the odor peculiar to excrement such as human waste. , A vegetable fragrance having a high residual aroma is suitable, and abies oil (extract of a pine family), kayabae oil (extract of araceae), camphor oil (extract of a camphoraceae plant), cedarwood oil (hinoki cypress) Essential oils extracted from plants such as family plants extract) and lavender oil (Labiatae family extract) are suitable, and deodorant flavors are also used.

[Operation] The mechanism of sewage treatment by the microorganism-based sewage treatment agent for toilets of Hon-Sueei is considered as follows.

That is, bacteria of the genus Bacillus decompose organic substances such as starchy substances and proteins that emit a bad odor in toilet wastewater,
The sugars and hydrocarbons generated by the decomposition are treated with Streptococcus spp. And Enterobacter (E.
nterobacter) cells are further decomposed to promote fermentation and remove odorous substances.

The microorganism-based sewage treatment agent for a toilet of the present invention contains a considerably large amount of Bacillus cells of 10 ⁹ to 10 ¹¹ / g, and therefore decomposes an organic filth that emits a foul odor in the toilet sewage in a short time. Then, the sugars and hydrocarbons produced by the decomposition are decomposed by microorganisms of the genus Streptococcus and Enterobacter.
It can be fermented, and some of its decomposition products may have an aroma.

Further, the following will be described using the toilet microorganism-based sewage treatment agent of the present invention, for example, when it is used for extracting toilet filth after sending it for 4 days and sending it to the sewage treatment plant. First, in the initial stage of addition to sewage, microorganisms are still small in activity and a little malodor occurs, so the added fragrance component covers this malodor, but after one day to four days,
Degradation by microorganisms is activated.

However, during this decomposition and fermentation, a yellow pigment may be secreted into the Enterobacter bacteria, and the blue pigment added to maintain the cleanliness of the treated wastewater , That yellow can be weakened. Then, from the 3rd day, the color changes from yellowish green to green, but the cleanliness does not deteriorate. In addition, when it is in a vehicle toilet for 4 days and then extracted and mixed with activated sludge at a sewage treatment plant, a large amount of microorganisms are mixed in the activated sludge to activate protozoa in the activated sludge and leave it. The wastewater from the sewage treatment plant can be cleaned because it completely decomposes and ferments offensive odors and wastes and also decomposes the pigment components.

Therefore, by adding the microorganism-based sewage treatment agent for a toilet of the present invention to a vehicle toilet, the running vehicle toilet is cleaned and deodorized, and the wastewater discharged from the sewage treatment plant is colorless and odorless. It can be expected to have the effect of

The microbial-based sewage treatment agent for a toilet of the present invention is particularly suitable for a vehicle toilet, and further, a small toilet,
It is also suitable for hypothetical toilets and portable toilets.

Next, the toilet microbe-based sewage treatment agent of the present invention will be described by way of specific examples, but the present invention is not limited to the following examples.

[Example] As a microbial component, three kinds of microorganisms were used, and Bacillus
llus) B. subtilis [IAM 1168] bacteria 8 × 10 ¹⁰ / g, Streptococcus genus S. faecalis [IAM 1115] bacteria 2 × 10 ⁸ /
g, 50 parts by weight of microbial components containing 1 × 10 ⁸ / g of E. sakazakii [IAM 12660] bacteria belonging to the genus Enterobacter, 30 parts by weight of soybean meal, 5 parts by weight of yeast extract , Malt extract 10 parts by weight, calcium carbonate 30 parts by weight and water 1000 parts by weight were mixed and mixed for 24 hours, and then dried by a spray dryer until the final water content became 6 to 4% by weight to obtain a powdered product. It was This powder contains Bacillus subtilis [IAM 1168]
5 × 10 ¹⁰ / g of bacteria, Streptococcus faecalis (S.
faecalis) [IAM 1115] bacteria 1.5 × 10 ⁸ / g, Enterobacter Sakazaki (E.sakazakii) [IAM 12660] bacteria 0.8
X 10 ⁸ / g was present. To 100 parts by weight of this microbial component, 1 part by weight of Blue No. 1 manufactured by Daiwa Kasei Co., Ltd. as a pigment component, 35 parts by weight of deodorant fragrance D-0612 (made by Takasago fragrance) with a scent of pearl oyster as a fragrance component, and zeolite 65 30 parts by weight of a powder composed of 10 parts by weight was blended to obtain a microorganism-based sewage treatment agent. The following test was conducted on the microorganism-based wastewater treatment agent thus obtained.

That is, assuming a toilet for trains, adding 2 parts by weight of the above-mentioned microorganism-based sewage treatment agent to 100 parts by weight of the first flood water, and assuming that the train toilet is used for 4 days, human urine Sewage mixed with stool in a weight ratio of 19: 1 15
It was added by weight and shaken at 30 ° C., and the hue and odor were examined for 4 days. As a result, a clean hue of blue to green was exhibited, and at the same time, a pleasant scent of pearl oyster was maintained.

After that, assuming the final treatment at the sewage treatment plant, activated sludge 1
When 1 part by weight of the wastewater solution remaining after the test was mixed with parts by weight and aeration was performed for 6 hours, the hue disappeared and the malodor characteristic of activated sludge also disappeared. Next, Table 1 shows the results of comparison between the case of using the microorganism-based wastewater treatment agent for toilet of the present invention and the case of not using it. Table 1 Test results on trains 1st day 2nd day 3rd day Use treatment agent Blue, pleasant odor blue, pleasant odor blue, pleasant odor treatment agent not used 4th day Activated sludge addition effect treatment agent use blue, Pleasant odor Colorless and deodorant Treatment-free Kusugaku [Effect of the invention] First, as described above, the microbial-based sewage treatment agent of the present invention emits a bad odor in toilet sewage due to the large number of microbial bacteria. It is possible to provide a sewage treatment agent capable of decomposing organic filth in a short time, secondly, it is possible to provide a treatment agent which can substantially weaken the odor in the initial stage and which does not give an unpleasant hue in terms of hue. Thirdly, running Technical effects such as cleaning the vehicle toilet inside and making it odorless and providing colorless and odorless treatment agent to the wastewater discharged from the wastewater treatment plant were obtained.

 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Shigeo Tano 1-297 Kitabukuro-cho, Omiya-shi, Saitama Prefecture Central Research Laboratory, Mitsubishi Mining Cement Co., Ltd. (72) Inventor Yasuo Fukatsu 1-297 Kitabukuro-cho, Omiya-shi, Saitama Mitsubishi Central Research Institute, Mining Cement Co., Ltd. (56) Reference JP-A-54-75160 (JP, A)

Claims (2)

[Claims] 1. A microbial-based sewage characterized by containing 0.5 to 2.0 parts by weight of a pigment component and 10 to 60 parts by weight of a perfume component with respect to 100 parts by weight of a microbial component composed of a microorganism, a medium and a carrier. Processing agent. 2. The microbial component according to claim 1, wherein the microbial component is composed of three or more species, and the number of bacteria per gram of said microbial component is 10 ⁹ to 10 ¹¹ / g of bacteria belonging to the genus Bacillus. , Streptococcus spp. 10 ⁷ to 10 ⁹ /
g, Enterobacter bacteria 10 ⁷ to 10 ⁹ /
Microorganism-based sewage treatment agent characterized by being g.