JPS6315955A - Deodorizing facilities - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a deodorizing facility for foul-smelling air generated in livestock barns and the like.

[Conventional technology]

Odors are a problem in human waste treatment plants, sewage treatment plants, waste treatment plants, government offices, food factories, fish iliac treatment plants, pig farms, poultry farms, valve manufacturing industries, etc.

The main components of such malodorous components are generally ammonia, amines, hydrogen sulfide, methyl sulfide, and mercaptan. It contains sulfur atoms, and these nitrogen and sulfur atoms are the source of the bad odor.

By the way, conventional deodorizing methods are roughly divided into physical methods and chemical methods.For example, the physical method uses adsorption such as activated carbon, and the chemical method uses hydrogen sulfide, ammonia, and amines. For components that do not react with neutralization, such as mercaptan and methyl sulfide, chemical neutralization is performed using an alkali or acid such as caustic soda or sulfuric acid.For components that do not react with neutralization, such as mercaptan and methyl sulfide, oxidizing agents such as sodium hypochlorite, chlorine, and potassium permanganate are used. A method is used to oxidize and deodorize in the coexistence of alkali or acid.

However, the above-mentioned physical method has high running costs and is troublesome to regenerate or dispose of activated carbon.
There is also the risk of secondary pollution caused by foul-smelling gas during combustion.

On the other hand, with chemical methods, in order to effectively deodorize, consideration must always be given to the relationship between the concentration of the neutralizing solution and the concentration of the foul-smelling gas, and the used neutralizing solution is either acidic or alkaline when discharged. Of course, it cannot be discharged as is, but must be adjusted to at least 2 pH before discharge, which requires complicated equipment and maintenance.

Therefore, as a new deodorizing method that does not have high running costs, does not require complicated equipment or maintenance, and does not have to worry about secondary contamination, for example, the biochemistry of aerobic bacteria as described in Japanese Patent Application Laid-Open No. 57-200158 has been proposed. A method using a physical reaction has been proposed.

This method involves bringing malodorous gases containing ammonia, amines, hydrogen sulfide, methyl sulfide, mercaptans, etc. into gas-liquid contact with a culture medium containing aerobic bacteria, thereby removing malodorous components from the malodorous gases. Its purpose is to make malodorous components odorless by oxidizing and reducing them through enzymatic action.

[Problems to be Solved by the Invention] However, if the gas-liquid contact is not carried out sufficiently, the deodorizing action of the deodorant liquid will be incomplete.

The purpose of the present invention is to eliminate the disadvantages of the conventional example, and to provide a deodorizing facility that can achieve effective gas-liquid contact with simple equipment, achieve a high deodorizing effect, and facilitate post-processing. be.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention provides an air supply pipe in the upper part of the malodor generating chamber and an exhaust pipe in the lower part, and opens the end of this exhaust pipe into a separately formed deodorizing treatment chamber to produce an i-fouling effect upward. The gist of the present invention is to provide a spraying device for dispersing an enzyme solution of bacteria that harbor bacteria or a deodorizing solution consisting of an enzyme solution and a bacteria solution.

[Effect]

According to the present invention, the bad odor from the room where the bad odor is generated mixes with the air flowing from the air supply pipe to the exhaust pipe, is absorbed by the exhaust pipe into an independent deodorizing treatment chamber, and rises as an air current. At that time, a deodorizing liquid that has a deodorizing effect is sprayed on the foul-smelling air, and air-liquid contact is realized, resulting in a deodorizing effect. Then, it becomes deodorized air and is released outside from the opening above it.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a longitudinal sectional front view showing an embodiment of the deodorizing facility of the present invention, and shows an example in which the facility is used as a pigsty facility.

In the figure, reference numeral 1 indicates a pigsty, and an air supply pipe 2 for introducing outside air is provided near the ceiling, and a large number of air supply holes 2a are bored in this air supply pipe 2.

In the figure, numeral 3 is a manure discharge bit installed on the concrete floor of the pigsty 1. 4 in the figure is a raised slatted floor where the pigs live, and Bunri 10, etc., is sometimes installed above it.

Between the excrement discharge bit 3 and the drainboard floor 4, an exhaust pipe 5 having a plurality of odor suction holes 5a bored in the peripheral wall is installed along the excrement discharge bit 3. This exhaust pipe 5 is introduced into an independent deodorizing treatment chamber 6 provided adjacent to or close to the pigpen 1, and has a suction means 11 such as a blower in the middle, and the tip serves as an odor discharge port 5b for deodorizing. The lower center of the processing chamber 6 is opened downward.

Further, above the odor discharge port 5b of the deodorizing treatment chamber 6, a spray pipe having a large number of nozzles 7a is used for spraying a bacterial enzyme solution that performs a deodorizing action or a deodorizing solution consisting of an enzyme solution and a bacterial solution. 7 was provided in a meandering manner in multiple strips and communicated with a deodorizing liquid source (not shown).

The upper part of the deodorizing treatment room 6 is a deodorizing ceiling space, which, although not shown in the figure, is open to the outside air through a louver or the like provided on the roof. In addition, the floor of the deodorizing treatment chamber 6 is formed as a sloped floor made of concrete, etc., and a liquid reservoir 9 is provided at the bottom of the floor, and the accumulated deodorizing liquid is discharged to the outside through a pipe. A pipe may be introduced in which the deodorizing liquid is regenerated.

The deodorizing liquid supplied to the spray pipe 7 is a bacterial enzyme liquid that performs a deodorizing action, or a deodorizing liquid consisting of an enzyme liquid and a bacterial liquid.

Bacteria that perform the deodorizing action include microorganisms selected from cellulose-degrading bacteria, filamentous fungi, sulfiding bacteria, air nitrogen-fixing bacteria, rhizobia, actinomycetes, yeast, and pseudomonas bacteria. Microorganisms may also be mixed.

For example, a mixture of bentonite, silicate clay, charcoal, etc.
Add 5 to 30% water, mix in a pure culture of the above microorganisms at a ratio of 1 part, and leave at 15 to 30°C for 24 hours or more to obtain a primary culture of bacteria. A secondary culture material obtained by further mixing the above mixture with the primary culture material, adding 15 to 30% water and culturing for 24 hours or more can be used.

Furthermore, bacteria that are not generally known can also be used.

Next, to explain the usage and operation, outside air is taken in in the pigsty 1 through the air supply pipe 2, and the fresh air is diffused into the pigsty 1 through the air supply hole 2a. The air becomes polluted and smells bad. This malodorous air is collected through the odor suction hole 5a by operating the suction means 11 provided in the exhaust pipe 5, and is discharged into the lower part of the deodorizing chamber 6 through the odor discharge port 5b which opens into the deodorizing chamber 6. At this time, the foul-smelling air rises while diffusing inside the deodorizing chamber 6.

On the other hand, at this time, the deodorizing liquid is spouted down from the spray pipe 7, and the foul-smelling air and the deodorizing liquid come into gas-liquid contact, and deodorization is performed by the action of bacteria that carry out the deodorizing action. At that time, the long sword is deodorized. In this way, the odorless deodorized air flows out into the outside air through an opening in the roof of the deodorizing room 6.

On the other hand, the deodorizing liquid sprayed down from the spray pipe 7 performs a deodorizing action on the way, falls onto the floor, flows into the liquid reservoir 9, accumulates there, is taken out through a pipe to the outside, and is sent to a regeneration plant where it is regenerated. be done.

Note that this alone can provide a sufficient deodorizing effect, but as another embodiment, a cartridge-type deodorizing filter 8 is further spread over the dispersion pipe 7 to form a ceiling part,
The upper part of the deodorizing treatment chamber 6 may be covered with an M-type.

As this filter 8, a thin body like cardboard,
Alternatively, various types of fibrous bodies such as beets, fibers, and glass wool can be used, and an enzyme solution of the same kind or a slightly different type of bacteria as that supplied to the dispersion pipe 7 or a bacterial solution having a slightly different deodorizing effect or an enzyme solution and a bacterial solution can be used. Impregnate it with a deodorizing liquid.

In this way, the air that has been deodorized by the deodorizing liquid from the spray pipe 7 continues to rise and passes through the deodorizing filter 8. Then, when the deodorizing filter 8 comes into contact with the deodorizing liquid impregnated, the same bacteria performs the deodorizing action, and the deodorizing is completed.

Further, the used deodorizing filter 8 is incinerated or composted, and then replaced with a new one.

By the way, although this embodiment concerns a pigsty, the present invention is not limited to a pigsty, but can be similarly applied to other livestock houses such as a chicken house and other facilities that generate bad odors.

〔Effect of the invention〕

As described above, the deodorizing facility of the present invention has a simple equipment structure and can achieve efficient deodorizing work by effectively bringing the gas into liquid contact when deodorizing by bacterial action. . Furthermore, the disposal of used deodorizing liquid is easy and there is no risk of secondary pollution.

Therefore, the bad odor inside the livestock barn is not leaked to the outside, which prevents bad odor pollution, and the livestock industry can be operated even if it is not deep in the mountains or in a remote area, which promotes the livestock industry. Note that it is economical because the waste liquid can be recycled and reused.

Moreover, the deodorizing facility of the present invention can have similar effects even when used in industries other than the livestock industry.

[Brief explanation of the drawing]

The figure is a longitudinal sectional front view showing one embodiment of the deodorizing facility of the present invention. ■...Pigpen 2...Air supply pipe 2a...
Air supply hole 3... excrement transport via) 4... Slatted floor 5... Exhaust pipe 5a... Odor suction hole
5b...Odor outlet 6...Deodorization processing chamber
7... Spraying pipe 7a... Spraying nozzle 8... Deodorizing filter 9... Liquid reservoir 10... Shelf 11... Suction means

Claims (1)

[Claims] An air supply pipe is provided in the upper part of the odor generating chamber, and an exhaust pipe is provided in the lower part, and the end of this exhaust pipe is opened into a separately formed deodorizing treatment chamber.
A deodorizing facility characterized by having a spraying device for dispersing a bacterial enzyme solution or a deodorizing solution consisting of an enzyme solution and a bacterial solution above, which performs a deodorizing effect.