JPH0773701B2 - Fast-acting wastewater treatment agent - Google Patents

Description

TECHNICAL FIELD The present invention relates to a microorganism-based sewage treatment agent. That is,
The present invention relates to a fast-acting sewage treatment agent containing microorganisms, which are based on microorganisms used in vehicle toilets, have high cleanliness (cleanliness), have no bad odor, and are pleasant in hue, and have particularly high activity.

[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. Others include lactic acid bacteria and soil microorganisms. In addition to the above-mentioned microorganisms, there are those 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 was considered to be technically and economically unsuitable to use a microorganism-based wastewater 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 can decompose the organic filth that emits a foul odor in the toilet filthy water in a short time, almost eliminates the odor, and can maintain the hue and cleanliness, in particular, to clean the toilet of the running vehicle, It is an object to provide a microorganism-based wastewater treatment agent for toilets that can deodorize waste. That is, the present invention is added to a running vehicle toilet, clean the toilet, deodorize, can be made odorless and colorless even to wastewater discharged from a sewage treatment plant, and utilize the adsorption capacity of zeolite. The purpose is to provide a novel sewage treatment agent that absorbs a bad odor source and an unpleasant color.

[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 microorganism-based sewage treatment agent comprising 2.0 parts by weight, 10 to 90 parts by weight of a perfume component, and 0.1 to 5.0 parts by weight of an inorganic exchanger powder. The microorganism component is composed of four or more kinds of microorganisms, and the number of bacteria per 1 g of the microorganism component is 10 ¹¹ to 10 ^{13 of the} genus Bacillus.
/ g, Streptococcus spp 10 ⁹ ~
10 ¹³ / g, Enterobacter bacteria 10 ⁹
It is preferable that the number of bacteria is ~ 10 ¹³ / g and 10 ⁴ or more of Rhizopus bacteria.

The present inventors previously characterized that, for 100 parts by weight of a microbial component composed of a microorganism, a medium, and a carrier, 0.5 to 2.0 parts by weight of a pigment component and 10 to 60 parts by weight of a perfume component are blended. It is a microbial-based sewage treatment agent for toilets. The microbial component is composed of three or more kinds of microorganisms,
The number of bacteria for 1 g of the microbial component is Bacillus
Genus fungus 10 ⁹ ~ 10 ¹¹ / g, Streptococcus
us) fungi 10 ⁷ -10 ⁹ / g, Enterobacter
er) bacterium belonging to the genus 10 ⁷ to 10 ⁹ / g was proposed.

On the other hand, the present invention proposes a sewage treatment agent having a faster effect. That is, the action of microorganisms can be further improved so that it becomes useful as a sewage treatment agent for the Shinkansen that treats filth every day.

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 of the genus Bacillus 10 ¹¹ to 10 ¹³
/ g, Streptococcus spp 10 ⁹ ~
10 ¹³ / g, Enterobacter bacteria 10 ⁹
〜10 ¹³ / g and 100 parts by weight of microbial component of Rhizopus genus 10 ⁴ or more, 0.5 to 2.0 parts by weight of the pigment component to adjust the hue and substantially reduce the initial unpleasant odor 10 to 90 parts by weight of the perfume component for mixing and 0.1 to 5 parts by weight of the inorganic exchanger powder for smoothing the treatment.

Examples of the microorganisms used in the toilet microorganism-based wastewater treatment agent of the present invention include bacteria of the genus Bacillus, bacteria of the genus Streptococcus, bacteria of the genus Enterobacter, and Rhizop.
us) bacterium of the genus is included. 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 a food for the microorganism used and has a certain composition and a certain soybean dregs. Agricultural product by-products such as bran and bagasse are used, or rotten beverages such as milk are used, and yeast extract, malt extract, and other chemicals can be used in combination depending on the case.

Further, 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,
When calcium silicate is used, sawdust can be used in the case of organic powder.

Regarding the mixing ratio of the sewage treatment agent of the present invention, the number of bacteria present in the microbial component composed of the microorganism, the medium and the carrier is a bacterium of the genus Bacillus, 10 ¹¹ to 10 ¹³ / g, Streptococcus (Streptococcus). ) Genus fungus 10 ⁹ ~ 10 ¹³
/ g, 10 ⁹ ~ 1 for Enterobacter bacteria
0.5 to 10 parts by weight of the microbial component, which is 10 ⁴ / g or more in the genus Rhizopus, is added to the pigment component in an amount of 0.5 to ¹³ g.
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 microbial component.
If the amount is less than part by weight, the hue is insufficient and the cleanliness cannot be maintained. On the other hand, if it exceeds 2.0 parts by weight, the hue is too dark to be erased at the sewage treatment plant, and the waste water is colored to cause pollution.

In addition, per 100 parts by weight of the microbial component, 10 to 9 perfume ingredients
The reason for blending 0 parts by weight is that if the fragrance is less than 10 parts by weight, the odor peculiar to the microbial component cannot be masked or neutralized, and if it exceeds 90 parts by weight, only the cost becomes expensive, which means that There will be no.

The inorganic exchanger powder is added in order to adsorb a part of the pigment component and the malodorous component during aeration for treating sewage. As a suitable inorganic exchanger powder for that purpose, natural zeolites such as mordenite, clinoptite, and fauciasite are useful, and synthetic zeolites having no quality variations are more preferable. The reason why the amount of the inorganic exchanger powder is 0.1 to 5 parts by weight with respect to 100 parts by weight of the microbial component is that less than 0.1 parts by weight does not adsorb one part of the dye or malodorous source during aeration and exceeds 5 parts by weight. And, when the vehicle is traveling, it adsorbs the pigment component, which deteriorates the cleanliness.

In addition, when the number of microorganisms in the microbial component is four, the number of bacteria per gram of the microbial component is 10 ¹¹ to 10 ¹³ / g in the bacterium of the genus Bacillus, and Streptococcu
s) bacteria of ^{9 9} to 10 ¹³ / g, Enterobacter (Enteroba
cter) fungus, which is contained at a rate of 10 ⁹ to 10 ¹³ / g. That is, if the bacterium of the genus Bacillus is less than 10 ¹¹ , the ability to decompose organic contaminants such as starch and proteins in 24 hours is insufficient, and if it exceeds 10 ¹³ / g, the odor generated by the bacterium within 24 hours Is a strong cause of odor.

Further, if the bacterium of the genus Streptococcus is less than 10 ⁹ , the decomposition of sugars such as glucose is insufficient in 24 hours, and if it exceeds 10 ¹³ / g, the decomposition treatment ability is not required any more. See also Enterobact
If the number of bacteria belonging to the genus er) is less than 10 ⁹ , the decomposition of saccharides is insufficient in 24 hours, and if it exceeds 10 ¹³ / g, the number of bacteria producing yellow pigment increases within 24 hours, resulting in poor hue. Become. For the above reason, the toilet microorganism-based sewage treatment agent of the present invention has the above blending ratio.

The added bacteria of the genus Rhizopus secrete a very powerful saccharifying enzyme, so that carbohydrates in toilet waste can be rapidly replaced with sugars, and the effect of Bacillus can be greatly enhanced. The resulting saccharides and hydrocarbons are decomposed by Streptococcus and Enterobacter spp. Therefore, if a Rhizopus spp is mixed in, the pollutants and malodorous sources will be decomposed in an extremely short time. Can be terminated. If the bacterium of the genus Rhizopus is less than 10 ⁴ / g, the decomposing ability is insufficient.

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 for Fermentation Osaka: Abbreviation of Fermentation Research Institute: 3009] bacteria, coagulans (B.coagulans) [IAM 1115], macerance (Bm)
acerans) [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.

In addition, as one fungus of the genus Rhizopus of mold, Rhizopus formosaensis (Rhizopus for
mosaensis) [IAM 6250], Rhizopus oryzae (Rhi
zopus oryzae) [IAM 6006], Rhizopus pseudochinensis [IAM 6042] and the like can be used.

Further, the pigment component used in the toilet microorganism-based sewage treatment agent of the present invention is preferably blue because it imparts cleanliness to the toilet sewage, as long as it is an organic dye, any of acid dyes, basic dyes, direct dyes, etc., 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. , Vegetable fragrances with high residual aroma are suitable, Avies oil (Pineaceae plant extract), Kayapte oil (Araceae plant extract), Camphor oil (Caupressaceae plant extract), Cedarwood oil (Hinoki) 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 of the toilet microbe-based rapid-acting sewage treatment agent of the present invention 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) and Rhizopus cells rapidly decompose further to accelerate fermentation and remove malodorous substances.

The microorganism-based wastewater treatment agent for toilet of the present invention contains a considerably large amount of Bacillus cells of 10 ¹¹ to 10 ¹³ / g, and therefore decomposes organic filth that emits a foul odor in toilet wastewater 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. Furthermore, the wastewater treatment agent of the present invention contains a bacterium of the genus Rhizopus,
This can decompose starchy dirt in a short time.

The sewage treatment agent of the present invention can be manufactured as follows. That is, water is added to the above-mentioned microbial components (microorganism + medium + carrier) and mixed at 25 to 28 ° C for 24 to 48 hours, and the final water content is adjusted to 5 to 6 by using a vacuum dryer or a spray dryer. %
And dried to powder. Thereafter, the dry microorganism component thus produced is mixed with a predetermined amount of a pigment component, a perfume component, and an inorganic exchanger powder to produce the sewage treatment agent of the present invention.

Next, the usage of the sewage treatment agent of the present invention will be described. The toilet microorganism-based sewage treatment agent of the present invention is added to a vehicle toilet, and for example, toilet waste collected in the vehicle after running for one day is extracted, The case of sending to a sewage treatment plant is as follows. First, even in the initial stage of addition to sewage, the microbial activity is high and it is possible to prevent the generation of malodor. Further, the fragrance component can neutralize a small amount of malodor generated in the initial stage. At the same time, the added inorganic exchanger powder adsorbs the dye remaining in the wastewater treatment plant,
Purify wastewater. Thus, the wastewater treatment agent of the present invention,
The vehicle toilet can be cleaned.

Enterobacter contained in the wastewater treatment agent of the present invention
robacter) cells may secrete a yellow pigment during decomposition and fermentation, resulting in cleanliness of treated sewage.
In order to retain the above, the yellow color can be weakened by the added blue dye, and when the effect is weakened, the color changes from blue to a little green, but the cleanness is not deteriorated. When used as vehicle filth, the filth is extracted every day, and when mixed with activated sludge at a sewage treatment plant, a large amount of microorganisms are mixed into the activated sludge to activate protozoa in the activated sludge, The wastewater from the sewage treatment plant can be cleaned because the odor and waste are completely decomposed and fermented and the pigment component is also decomposed. 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 even in the case of a short time odor, it is also discharged from the sewage treatment plant. It can be expected to have the effect of becoming colorless and odorless with respect to the wastewater that is discharged.

The microbial-based sewage treatment agent for a toilet of the present invention is particularly suitable for a vehicle toilet that has a fast-acting property and is treated in a short time, and is also suitable for a small toilet, a temporary toilet, and a portable toilet. .

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] There are 5 kinds of microorganisms, 7 × 10 ¹² / g of Bacillus genus B.subtilis [IAM 1168], and Streptococcus fachalis (S.fae)
calis) [IAM 1115] bacteria 6 × 10 ¹² / g, E. sakazakii [IAM] of the genus Enterobacter (Enterobacter)
12660] 3 × 10 ⁹ / g of bacteria, Enterobacter (Enterobac
ter) genus E. agglomerans [IAM 1265
9] bacteria at 4 × 10 ⁹ / g and Rhizopus genus R.formosaensis [IAM 6250] bacteria 6
60 parts by weight of microorganisms containing × 10 ⁴ / g, 25 parts by weight of soybean cake, 3 parts by weight of yeast extract, 20 parts by weight of malt extract, 25 parts by weight of calcium carbonate, and 1000 parts by weight of water are mixed and mixed at 25 ° C.
After 48 hours of mixing, dry with a vacuum dryer and spray dryer until the final water content is 6-4% by weight,
A powdered product was obtained. This powder contains 9.5 × 10 ¹² / g of B. subtilis [IAM 1168] bacteria,
Streptococcus faecalis [IAM
1115] Fungus 8 × 10 ¹² / g, Enterobacter Sakazaki (E.
sakazakii) [IAM 12660] bacteria 5.2 × 10 ⁹ / g, Enterobacter agglomerans (IAM 12659)
6.5 × 10 ⁹ / g of bacteria and 2 × 10 ⁹ / g of R. formosaensis [IAM 6250] were present. Based on 100 parts by weight of this microbial component, 0.8 parts by weight of Blue No. 1 manufactured by Daiwa Kasei Co., Ltd. as a pigment component and a deodorant fragrance D having a scent of pearl oyster as a fragrance component
-0612 (Takasago fragrance) 30 parts by weight and calcium carbonate 70
70 parts by weight of powder consisting of parts by weight and further 2 parts by weight of mordenite powder (manufactured by Catalysts & Chemicals Co., Ltd.) were mixed and uniformly mixed to obtain a microorganism-based sewage treatment agent.

The following tests were conducted on the microorganism-based wastewater treatment agent thus obtained.

That is, assuming a toilet of a train, assuming that 0.5 parts by weight of the above-mentioned microorganism-based wastewater treatment agent is added to 100 parts by weight of the first flooded water, and that the Shinkansen toilet of the train is used for one day. 50 parts by weight of sewage mixed with human urine and stool at a weight ratio of 19: 1 was added 4 times every 4 hours, for a total of 200 parts by weight, while maintaining at 30 ° C. and shaking continuously. The hue and odor during the day were investigated. 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 where the microbial wastewater treatment agent for toilet of the present invention was used and the case where it was not used.

EFFECTS OF THE INVENTION The microorganism-based sewage treatment agent of the present invention is, firstly, a sewage treatment agent capable of decomposing an offensive odorous organic filth in toilet sewage in a short time because of the large number of microbial bacteria as described above. Second, it is possible to provide a treatment agent that can substantially weaken the odor in the initial stage and that does not give an unpleasant hue in terms of hue. Third, clean the running vehicle toilet and deodorize dirt. In order to improve the treatment capacity for wastewater discharged from sewage treatment plants, the adsorption ability of the inorganic exchanger powder is utilized to provide a novel treatment agent that can adsorb pigments and malodorous sources, and can make them colorless and odorless. Fourth, because the type of microorganisms and the number of microorganisms were devised, for example, the number of microorganisms was large, and the organic matter of the malodorous source was decomposed in a short time.
Technical effects such as providing a sewage treatment agent capable of rapidly decomposing bacteria of the genus opus) 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 Prefecture Mitsubishi Central Research Institute of Mining Cement Co., Ltd. (56) Reference JP-A-54-75160 (JP, A)

Claims (2)

[Claims] 1. A coloring matter component is 0.5 to 2.0 parts by weight, a perfume component is 10 to 90 parts by weight, and an inorganic exchanger powder is 0.1 to 5.0 parts by weight with respect to 100 parts by weight of a microorganism component composed of a microorganism, a medium and a carrier.
A microbial-based sewage treatment agent, characterized by containing parts by weight. 2. The microbial component according to claim 1, wherein the microbial component is composed of four or more species, and the number of bacteria per 1 g of the microbial component is 10 ¹¹ to 10 ¹³ / g of bacteria belonging to the genus Bacillus. , Streptococcus genus 10 ⁹ -10 ¹³ /
g, bacteria of the genus Enterobacter 10 ⁹ to 10 ¹³
/ g, Rhizopus bacteria of 10 ⁴ or more, a microorganism-based sewage treatment agent characterized by the above-mentioned.