JPS6025530A - Deodorizing apparatus - Google Patents

Abstract

PURPOSE:To decompose and eradicate a malodorous substance by filling a plurality of chambers with a soil bacteria deodorant, which is obtained by a method wherein a soil bacteria group containing ammonia oxidizing bacteria, nitrate-forming bacteria, sulfur oxidizing bacteria and cellulose decomposing bacteria is mixed with a base material while the resulting mixture is subjected to active fermentation and dried. CONSTITUTION:Original bacteria comprising a soil bacteria gourp containing ammonia oxidizing bacteria, nitrate-forming bacteria, sulfur oxidizing bacteria and cellulose decomposing bacteria are mixed with a base material such as rice bran or saw dust and the resulting mixture is subjected to active fermentation and dried to obtain a powdery deodorant. A plurality of chambers 20 partitioning a casing are packed with said deodorant and malodorous gas from an inflow port 12 is successively and linearly flowed from the lower stage to the upper stage in the chamber 20. Malodorous substances are decomposed by the action of soil bacteria and deodorized gas is exhausted from an outflow part 13. The chamber 20 is formed into a drawer type due to rails 16 with rolls from the standpoint of the exchange of the soil bacteria deodorant and the maintenance of the other apparatus.

Description

[Detailed description of the invention] The present invention relates to a deodorizing device for gas containing malodorous components.

In particular, this invention utilizes a wide variety of microorganisms that exist in soil, that is, soil bacteria, to decompose substances that cause malodors.
The purpose of the present invention is to provide a deodorizing device that can eliminate the foul odor of gas by converting it into another substance that does not have a foul odor.

Odors generated by food scraps, sewage sludge, seafood scraps, and other food manufacturer wastes are currently a major pollution problem. In particular, temporary measures such as deodorants cannot solve the problem of the bad odors generated.

In general, the elements that cause bad odors that humans perceive are (volatile amines such as ammonia, dimethylamine, and trimethylamine, lower fatty acids and their esters such as acetic acid and caproic acid, carfomol compounds, and alcohol , phenols, (1) sulfur compounds such as hydrogen sulfide, tda-methane, methyl mercaptan, and ethyl mercaptan, and these are said to be the cause of bad odors when mixed together.

This invention focuses on the fact that there are many effective microorganisms in the form of soil bacteria in natural soil that have the ability to decompose elements that cause malodors, and utilizes this to decompose malodorous gases. The object of the present invention is to provide a deodorizing device that can bring soil bacteria into contact with soil bacteria, decompose malodorous substances, and eradicate malodors.

The deodorizing device of the present invention divides the inside of a casing having an inlet and an outlet into a plurality of chambers, and each chamber contains a group of soil bacteria including ammonia-oxidizing bacteria, nitrate bacteria, sulfur-oxidizing bacteria, and cellulose-degrading bacteria. A soil bacteria deodorizing agent made by mixing the image with a base material such as rice bran or sawdust, actively fermenting it, and drying it is filled, and the malodorous gas flowing in from the inflow part is sequentially circulated through each chamber to eliminate the soil bacteria. It is characterized in that it is brought into contact with an odor agent, and the malodorous substance is decomposed by the action of the soil bacteria and discharged as a deodorizing gas to the outside from the outflow portion.

Embodiments of the inventive device will now be described in detail with reference to the accompanying drawings.

The accompanying drawings: Figure 1 is a front view of an embodiment in which a plurality of deodorizing devices of the present invention are connected in two stages, Figure 2 is a plan view thereof, and Figure 3 is an enlarged front view with a partially cutaway section. , FIG. 4 is a perspective view of the chamber, FIG. 5 is a partially cutaway sectional view of an apparatus showing another embodiment, and FIG. 6 is a perspective view of the chamber.

As shown in the figure, the device of the present invention is used by connecting m number of units depending on the air volume for processing malodorous gases generated in, for example, a factory or the like.

In the figure, one unit of the deodorizing device is indicated by the symbol 1O, and the inside of the casing 11, which is partitioned into two left and right halves, is divided into a plurality of chambers 20 1 , 20 2 , . . . . Reference numeral 12 indicates an inflow portion of the malodorous gas collected by the duct D into the apparatus, and reference numeral 13 indicates an outlet portion of the deodorized gas.

As shown in the figure, the inside of the casing 11 is divided into several upper and lower chambers 20, 20, .

That is, in the embodiment illustrated in FIGS. 3 and 4,
The chamber 20 is configured so that the foul-smelling gas flows in three directions from the lower stage to the upper stage in series. It is covered with a net-like material such as a wire mesh 23.

In addition, for replacing the soil bacteria deodorizer 22 or maintaining other equipment, the chamber 20 is equipped with a roller rail 1 as shown in the figure.
6, it is preferable to use a pull-out type. In FIG. 2, reference numeral 17 is an angle member that presses down the wire mesh 23 on the upper surface of the chamber 20, and 18 is a front panel. In addition, in the same figure, the interval between each chamber 20.20 is approximately 100 mm.
It is 111 meters long. It is desirable that the processing air volume of one unit in the example is 10 cubic meters/second, and that the contact time between the malodorous gas and the soil bacteria is 4 seconds or more.

Here, the soil bacteria deodorizer 22 will be explained.

In this invention, a soil bacterium sterilizer is produced by mixing an original composition of soil bacteria including ammonia-oxidizing bacteria, nitrate bacteria, sulfur-oxidizing bacteria, and cellulose-degrading bacteria with a base material such as rice bran or sawdust, and drying the mixture through active fermentation. Odorants are used.

The original painting, which consists of a group of soil bacteria including ammonia-oxidizing bacteria, nitrate bacteria, sulfur-oxidizing bacteria, and cellulose-degrading bacteria, is obtained from natural soil, which is abundant in nature. In the examples, materials obtained from nature in Nasu Town, Tochigi Prefecture were used. The original image of the example contains the following effective soil bacteria groups.

Ammonia oxidizing bacteria (nitrite bacteria); nitrate bacteria; sulfur oxidizing bacteria (a group of bacteria that use hydrogen sulfide as a hydrogen donor, green sulfur bacteria); cellulose degrading bacteria (aerobic bacteria and anaerobic bacteria); filamentous bacteria (Aromatic Compound Degrading Bacteria); Manganese Oxidizing Bacteria (Organotrophic Bacteria); Manganese Reducing Bacteria (Black Fungi - Protozoan Basidiomycetes); Nitrifying Bacteria: Actinobacteria (Chitin Degrading Bacteria)
; Methane-oxidizing bacteria; right-spore bacteria; cellulose filamentous bacteria; lignin-degrading bacteria; iron-oxidizing bacteria; iron-reducing bacteria; sulfate-reducing bacteria; Bacillus subtilis; potato bacteria; Escherichia coli, etc.

Among these soil bacteria groups, ammonia oxidizing bacteria (nitrite bacteria) and nitrate bacteria convert ammonia nitrogen into nitrate nitrogen. This action is called nitrification, and is known to occur through the following two steps.

NH + 30 = HNO + H20 2 HNO 〇 = HNO3 2 Ammonia oxidizing bacteria (nitrite bacteria) take part in the action of oxidizing ammonia to nitrite in the first stage, and further convert the clogged nitrite into nitric acid in the latter stage. This is nitrate bacteria.

In addition, sulfur-oxidizing bacteria (sulfur bacteria) use hydrogen sulfide, which is harmful to general living things, as nutrition.

HS+ 1/202=2H2,O+S Cellulose-degrading bacteria act to produce glucose using fiber as nutrients.

(CHO)n+n H0=n(C6H1206)8.1
05 2 Furthermore, this glucose changes as follows.

CHO=CHO+2CO2+2H2 8126482 C8H1206=3C2H402 CH' O=3C02+3CH4 6126 The original picture of soil bacteria including ammonia-oxidizing bacteria, nitrate bacteria, sulfur-oxidizing bacteria, and cellulose-degrading bacteria in □ above is
It is mixed with base materials such as rice bran and sawdust for active fermentation. These original paintings undergo active fermentation in a moderate amount of moisture. Due to the fermentation heat, the temperature reaches 4'o = 4s°C, resulting in a dry powder with an aroma. By drying this, the original image becomes a stable powdered deodorizer placed on the IE.

By adding an appropriate amount of moisture to this dry, powdered deodorant, soil bacteria will activate fermentation again, and through the chemical decomposition process described above, substances that cause bad odors will be released. It transforms elements into other substances. Regarding the method of active fermentation on the base material of this original painting,
Various methods and steps are possible and therefore many methods are proposed for the deodorants disclosed herein.

In the device of the present invention, the above-mentioned soil bacteria deodorizer is packed in a cloth bag that is resistant to chemical solutions and filled into the above-mentioned chamber.

Next, other embodiments shown in FIGS. 5 and 6 will be described.

In this example, the foul-smelling gas is forcibly introduced into the soil bacteria deodorizer 22 through pipes 31, 31... to increase the contact efficiency, and the gas is also ejected to the soil bacteria deodorizer 22. The idea is to improve its activity by applying appropriate vibrations using pressure.

As shown in the figure, in each chamber 30, 30..., a blowout pipe 35, 35 having a large number of holes is arranged so as to be buried inside the deodorant. The blowout pipe 35.35 is
Alternatively, it is connected to a pipe 36 that connects to the inlet 12 or to a pipe 37, 37 that connects to the prechamber.

Note that it is preferable that the blow-off pipe 35 of each chamber is removable from its connecting pipe 36 or 37, for example, as in a socket type.

In FIG. 6, reference numeral 23 is a wire mesh for holding the deodorant similar to the above. It goes without saying that the lower surface 31 of the chamber 30 in this embodiment is sealed, unlike the first embodiment.

As shown and explained above, according to the deodorizing device of the present invention, the inside of the casing having an inflow part and an outflow part is divided into a plurality of chambers, and each chamber contains soil containing soil bacteria that decomposes malodorous components. Filled with a bacterial deodorizer, the malodorous gas flowing in from the inflow portion is sequentially circulated through each chamber and brought into contact with the soil bacterial deodorizer, and the malodorous substance is decomposed by the action of the soil bacteria and converted into a deodorizing gas. Since the odor is discharged to the outside from the outflow portion, it is possible to eliminate the odor from its source. In addition, the components of bad odor are
Since it is decomposed into other substances by the action of soil bacteria, no waste is discharged, and soil bacteria can be used repeatedly, making it extremely convenient for continuous use.

In addition, in the device of the present invention, the inside of the casing is divided into a plurality of chambers, and the malodorous gas is sequentially circulated through each chamber so as to be brought into contact with the soil bacteria deodorizer. It works reliably and is highly durable.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment in which a plurality of deodorizing devices of the present invention are connected in two stages, Fig. 2 is a plan view thereof, Fig. 3 is an enlarged front view with a part thereof cut away, and Fig. 4 is a perspective view of the chamber, FIG. 5 is a partially cutaway sectional view of an apparatus showing another embodiment, and FIG. 6 is a perspective view of the chamber. 10... Deodorant device, 11... Casing, 12...
- Inflow part, 13... Outflow part, 20... Chamber,
21... Perforated plate, 22... Soil bacteria deodorizer, 23...
- Wire mesh, 30...Chamber 135...Blowout pipe, 36.37...Connection pipe. Patent applicant Kiden System Engineering Co., Ltd. Figure 1 0 Figure 2 Figure 3 Figure 4 C Figure 5

Claims (1)

[Claims] The inside of the casing, which has an inlet and an outlet, is divided into a plurality of chambers, and in each chamber, an original image consisting of a group of soil bacteria including ammonia-oxidizing bacteria, nitrate bacteria, sulfur-oxidizing bacteria, and cellulose-degrading bacteria is injected with rice bran, sawdust, etc. A soil bacteria deodorizer that is mixed into a base material, subjected to active fermentation, and then dried is filled, and the malodorous gas flowing from the inflow portion is sequentially circulated through each chamber to come into contact with the soil bacteria deodorizer. A deodorizing device characterized in that malodorous substances are decomposed by the action of bacteria and discharged as a deodorizing gas to the outside from the outflow portion.