JPH0728909Y2 - Floating deodorant - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a deodorant material suitable for deodorizing a malodorous gas that evaporates from wastewater discharged from domestic wastewater and livestock facilities.

[Conventional technology]

Livestock facilities such as poultry farms and pig farms discharge sewage such as human excrement and wastewater containing organic substances is also generated from food processing facilities such as slaughterhouses. These sewage cannot be discharged to the river as it is. Therefore, the biological oxygen demand (BOD) of sewage will be stored in a sewage tank or collected at a sewage treatment facility for treatment until it reaches 20 ppm or less.

Recently, sewage collected in a treatment facility is generally treated using an activated sludge method, sterilized, and then discharged. The activated sludge method is a method of biologically treating sewage. Specifically, it is a method of mixing sewage with microorganisms that grow using organic matter in the sewage, supplying oxygen by blowing air, and performing aeration treatment, which has a very high purification capacity. .

An aeration tank is used for such a treatment method, and an odor is generated from the liquid surface of the sewage. In particular, in this method, since air is blown into the wastewater in the aeration process, not only the liquid level of the wastewater but also the emission of odor is promoted when bubbles are released into the atmosphere. The sewage tank can be sealed to prevent the emission of odor, but it is difficult to seal a large sewage tank aside from a small sewage tank.

Sewage treatment facilities are often located in the suburbs, but with the expansion of urban areas, private houses have come close to each other, and it has become necessary to move them to remote areas. However, even if the facility is relocated, the odor remains as it is, and a fundamental solution has not been reached.

[Problems to be solved by the device]

The present invention has been made to solve the above problems,
It is an object of the present invention to provide a float type deodorant material capable of efficiently deodorizing a foul odor generated from a sewage tank of a sewage treatment facility and having a permanent deodorant function.

[Means for Solving the Problems]

The float type deodorant material of the present invention for achieving the above-mentioned purpose,
Description will be made with reference to the drawings corresponding to the embodiments.

As shown in FIG. 1, the floating deodorant material 1 is a floating body floating on the liquid surface. At least the surface of the floating body is formed with the deodorant carrier 2 carrying a substituted derivative of metal phthalocyanine.

The deodorant carrier 2 is obtained by supporting a substituted derivative of a metal phthalocyanine on a base material made of, for example, woven cloth, non-woven cloth, spongy synthetic resin and porous synthetic resin film, sheet or foam by a known method. Is.

The hydrogen substituent of the substituted derivative of metal phthalocyanine is, for example, an alkyl group, a substituted alkyl group (for example, a chloromethyl group), a halogen group, a nitro group, an amino group, an azo group, a thiocyanate group, a carboxyl group, a carbonyl chloride group, a carboxylamide group. , Nitrile group, hydroxyl group, alkoxyl group, phenoxyl group, sulfonic acid group, sulfonyl chloride group, sulfonamide group, thiol group, alkyl silicon group, vinyl group and other amine salts, quaternary ammonium group or salts thereof, pyridine Examples thereof include groups and derivatives thereof, salts thereof, and the like, and the groups are not limited to one type, and different groups may be substituted. The central metal M of the metalloporphyrin is, for example, Fe, Co, Mn, Ti, V, N.
Materials of i, Cu, Zn, Mo, W and Os can be used. It is preferably Fe or Co, or a mixture of Fe and Co. The following formula is a structural formula of iron phthalocyanine octacarboxylic acid, which is an example of a substituted derivative of metal phthalocyanine.

The fiber material constituting the woven or non-woven fabric as the base material of the deodorant carrier 2 is, for example, cellulose fiber (cotton, hemp, rayon, etc.), protein fiber (wool, silk, etc.), polyamide fiber, polyester fiber. Fibers, polyacrylic fibers, poval fibers, polyvinyl chloride fibers, polyvinylidene chloride fibers, polyolefin fibers, polyurethane fibers, all natural fibers, recycled fibers, semi-synthetic fibers, and synthetic fibers can be used. I can. In addition to such organic fibers, inorganic fibers such as asbestos fibers, glass fibers, ceramic fibers, metal fibers and carbon fibers may be used.

Similarly, the synthetic resin used for the base material of the deodorant carrier 2 is, for example, triacetyl cellulose, polyethylene terephthalate, polyvinyl chloride, polypropylene, polystyrene,
Polycarbonate, polyacrylic, polysulfone, nylon, polyether sulfone, polyether ether ketone, and polyimide can be used.

[Action]

As shown in FIG. 2, the float type deodorant material 1 is densely floated on the surface of the dirty water 7. When the sewage 7 evaporates, the liquid surface of the sewage 7 is covered with the floating deodorant material 1. Therefore, the malodorous substance contained in the sewage 7 evaporates from the gap between the floating deodorants 1.
The malodorous substance is deodorized by the oxygen-like catalytic action of the substituted derivative of the metal phthalocyanine when passing through the gap of the floating deodorant material 1.

〔Example〕

 Hereinafter, embodiments of the present invention will be described in detail.

As shown in FIG. 1, the float type deodorant material 1 is a deodorant carrier 2
Is attached to the surface of the core material 3. The deodorant carrier 2 is a non-woven fabric carrying a substituted derivative of metal phthalocyanine. The core material 3 is a hollow sphere for obtaining buoyancy, and is a combination of hemispheres formed by press molding synthetic resin.

FIG. 2 is a schematic diagram of the dirty water tank 4. An air supply pipe 5 is arranged at the bottom of the dirty water tank 4. A plurality of small holes 6 are formed on the side surface of the air supply pipe 5, and the tip is closed. The other end is connected to an air supply pump (not shown). Floating deodorant 1
Are closely arranged on the liquid surface of the sewage 7 and float.

The dirty water 7 evaporates from the gap between the floating deodorant materials 1. At that time, the malodorous substance contained in the sewage 7 is deodorized by the oxygen-like catalytic action of the substituted derivative of metal phthalocyanine.

When the aeration process is performed in the sewage tank 4, in addition to evaporation, air containing a malodorous substance is also diffused from the inside of the sewage tank 4. That is, when air is discharged from the small hole 6 of the air supply pipe 5, the air becomes bubbles 8 and rises in the dirty water 7. At that time, the malodorous substance enters the bubbles 8. Even in this case, the air bubbles 8 circulate on the surface of the deodorant carrier 2 and pass through the gaps in the floating deodorant material 1. Malodorous substances are similarly deodorized.

The substituted derivative of the metal phthalocyanine carried on the deodorant carrier 2 has a semi-permanent deodorizing function, but when the surface is contaminated during use, it should be collected with a net or the like, washed and replaced. become. The shape of the float type deodorant material 1 is not limited to the above-mentioned spherical shape, and may be a flat plate shape, a disk shape, a rectangular parallelepiped shape, or the like, but a spherical shape is preferable in consideration of workability of collecting from the waste water tank 4.

The core material 3 is, in addition to the synthetic resin hollow body described in the examples,
For example, synthetic resin foam or wood material can be used. A non-hollow structure as shown in FIG. 3 may be used as long as sufficient buoyancy can be secured.

Although the float type deodorant material 1 of the above-described embodiment has the core material 3, if the base material of the deodorant carrier 2 is a material that floats in wastewater, such as a synthetic resin foam, Deodorant carrier 2
Alternatively, the deodorant material 1 may be molded by itself. In order to obtain a larger buoyancy, it is desirable to mold it into a hollow structure.

[Effect of device]

As described in detail above, the float type deodorant material of the present invention has an extremely strong deodorizing effect, and can efficiently deodorize malodorous substances that evaporate and diffuse from wastewater. The substituted derivative of the metal phthalocyanine carried on the deodorant carrier does not change itself and acts as a catalyst, and does not contain a malodorous substance. Therefore, the deodorizing function lasts semipermanently.

[Brief description of drawings]

1 and 3 are partial cross-sectional views of an embodiment of a float type deodorant material to which the present invention is applied, and FIG. 2 is an explanatory view showing a state in which the float type deodorant material floats on the liquid surface of a wastewater tank. Is. 1 ... Floating deodorant material, 2 ... Deodorant carrier 3 ... Core material, 4 ... Sewage tank, 5 ... Air supply pipe, 6 ... Small holes, 7 ... Sewage, 8 ... Bubbles

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location B01J 20/22 B 7202-4G 20/28 A 7202-4G C02F 1/00 ZAB F B01D 53/34 ZAB

Claims (1)

[Scope of utility model registration request] 1. A float-type deodorant, which is a floating body floating on a liquid surface, wherein at least the surface of the floating body is formed of a deodorant carrier carrying a substituted derivative of metal phthalocyanine. Material.