JPH0663573A - Purifying device - Google Patents

Abstract

PURPOSE:To obtain the purifying device which can purify sufficiently even in the case sewage flows into a purifying tank in large quantities, and reduces discharge in an unpurified state. CONSTITUTION:The purifying device is composed mainly of anaerobic purifying tanks 11a, 11b an aerobic purifying layer 12 and a disinfecting rank 13. An inflow tube 14, an air feeding-out tube 15 and a projecting wall 16, and a discharge purifying tank 12, and the disinfecting tank 13 filled with chlorine, respectively, and an air pump 18 is connected to the air feeding-out tube 15. Also, in a combined purifying tank, two places of transfer tubes 19a, 19b are arranged, and the transfer tube 19a, and the transfer tube 19b are arranged extending over the anaerobic purifying tank 11a and the anaerobic purifying tank 11b, and extending over the anaerobic purifying tank 11b and the aerobic purifying tank 12, respectively. A purifying material 20a, and a purifying material 20b are arranged in the lower part of the anaerobic purifying tanks 11a, 11b, and in the lower part of the aerobic purifying tank 12, respectively, and moreover, a purifying part 21 is arranged on the inner wall and the projecting wall 16 of these purifying tanks.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a purifying device for purifying wastewater such as domestic wastewater and human waste.

[0002]

2. Description of the Related Art Conventionally, when purifying wastewater such as domestic wastewater and human waste, the wastewater is made to flow through a purifying device consisting of a septic tank in an anaerobic state and a septic tank in an aerobic state, and adheres to the purifying material in each septic tank. Sewage has been decomposed and purified by living microorganisms.
Hereinafter, a conventional purification device will be described with reference to FIGS. 6 and 7.

As shown in FIGS. 6 and 7, the purifying device mainly comprises anaerobic septic tanks 1a and 1b, aerobic septic tank 2 and disinfecting tank 3.
Consists of. Below the anaerobic septic tanks 1a and 1b, a spherical purifying material 4a to which anaerobic microorganisms are adhered is arranged, and at the bottom of the aerobic septic tank 2 is a corrugated purifying material 4b to which aerobic microorganisms are adhered. An inflow pipe 5, a discharge pipe 6, and transfer pipes 7a and 7b are arranged in these septic tanks. An air delivery pipe 8 and a projecting wall 9 are arranged in the aerobic septic tank 2, and the air delivery pipe 8 is connected to an air pump 10. The disinfection tank 3 to which the discharge pipe 6 is connected is filled with chlorine. The purification material 4a is made of a material to which anaerobic microorganisms are easily attached (for example, polypropylene),
The purification material 4b is made of a material to which aerobic microorganisms are likely to adhere (for example, polypropylene or polyvinylidene chloride).

Explaining the operation in such a structure, the sewage sent to the anaerobic purification tank 1a through the inflow pipe 5 is purified by the action of anaerobic microorganisms attached to the purification material 4a. When the amount of water in the anaerobic septic tank 1a increases, the sewage is sent to the anaerobic septic tank 1b through the transfer pipe 7a. The sewage sent to the anaerobic septic tank 1b is purified by the action of anaerobic microorganisms adhering to the purifying material 4a,
When the amount of water in b increases, the sewage is sent to the aerobic septic tank 2 through the transfer pipe 7b. When sewage is sent to the aerobic septic tank 2,
Next, the aerobic microorganisms adhering to the purification material 4b take in oxygen in the air sent from the air delivery pipe 8 to oxidize and decompose this wastewater for purification. After being purified in the aerobic septic tank 2, it is disinfected with chlorine in the disinfecting tank 3 and then discharged from the discharge pipe 6. The solids and corpses of microorganisms in the vicinity of the opening of the air delivery pipe 8 are made to flow upward by the delivery of air from the air pump 10, but cannot reach the disinfection tank 3 due to the presence of the protruding wall 9, and the protruding wall 9 And settle after collision.

[0005]

However, in the conventional purifying apparatus, when the amount of sewage flowing into each septic tank is large, the sewage is not sufficiently purified in each septic tank and is discharged from the discharge pipe 6, so that a river or the like is discharged. There was a problem of pollution.

In view of the above problems, it is an object of the present invention to realize a purifying apparatus that can sufficiently purify even a large amount of dirty water flowing into a septic tank and reduce discharge in an unpurified state.

[0007]

In order to solve the above problems, the purifying apparatus of the present invention comprises a purifying section on the inner surface of the septic tank.

[0008]

With the above-described structure, microorganisms having a purifying effect on the wastewater flowing into the septic tank adhere to the purifying section provided in the septic tank, and the wastewater flowing into the septic tank is purified by the microbes.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
This will be described with reference to FIG.

As shown in FIGS. 1 and 2, the purifying apparatus mainly comprises anaerobic anaerobic purification tanks 11a and 11b, an aerobic aerobic purification tank 12 and a disinfection tank 13.

The anaerobic purification tank 11a is provided with an inflow pipe 14, the aerobic purification tank 12 is provided with an air delivery pipe 15 and a projecting wall 16, and the disinfection tank 13 is provided with a discharge pipe 17, respectively.
An air pump 18 is connected to 5. Further, two transfer pipes 19a and 19b are arranged in the purification device, the transfer pipe 19a extends over the anaerobic purification tank 11a and the anaerobic purification tank 11b, and the transfer pipe 19b indicates the anaerobic purification tank 11b and the aerobic purification tank 12.
It is distributed over each. Anaerobic septic tank 11a, 1
Purification material 20a is arranged at the bottom of 1b, purification material 20b is arranged at the bottom of aerobic purification tank 12, and purification portion 21 is arranged at the inner surface of these purification tanks and projecting piece 16.
The purification materials 20a, 20b and the purification unit 21 are made of polypropylene, and the purification material 20a is spherical and the purification material 20b.
Have a wavy shape (see FIG. 3). The side part of the aerobic septic tank 12 is inclined, and the disinfecting tank 13 is filled with chlorine as a disinfectant.

Explaining the operation in the above-mentioned configuration, sewage such as domestic wastewater and human waste is discharged from the inflow pipe 14 to the anaerobic septic tank 11a.
To the anaerobic septic tank 11b and the aerobic septic tank 12 as the inflow increases. Anaerobic microorganisms decompose and purify sewage in the anaerobic purification tanks 11a and 11b, and in the aerobic purification tank 12, aerobic microorganisms oxidize and decompose sewage using oxygen in the air sent from the air delivery pipe 15. The water purified in the aerobic purification tank 12 is sterilized by chlorine in the disinfection tank 13 and then discharged from the discharge pipe 17. The solid matter and dead bodies of microorganisms and the like near the opening of the air delivery pipe 15 are caused to flow upward by the delivery of air from the air pump 18, but cannot reach the disinfecting tank 13 due to the presence of the projecting wall 16 and the projecting wall. Precipitates after collision with 16. When the solids or dead bodies of microorganisms pass between the projecting wall 16 and the aerobic septic tank 12, the solids or dead bodies settle and contact the inclined portion on the side of the aerobic septic tank 12, and then the inclined portion. Slide down.

As described above, according to the first embodiment of the present invention, the purifying material 20a having anaerobic microorganisms adhered to the bottom of the anaerobic purifying tanks 11a and 11b, and the purifying material 20b having aerobic microorganisms adhered to the aerobic purifying tank. Since the purifying section 21 is arranged on the bottom of each of the tanks 12 and on the inner surface of these septic tanks and the projecting wall 16, the time during which the wastewater in the purifying apparatus contacts the microorganisms,
That is, since the purification time of the wastewater becomes long, the wastewater is decomposed and purified even when the amount of the wastewater flowing into these septic tanks is large, and the discharge of the wastewater in the unpurified state can be reduced.

A second embodiment of the present invention will be described below with reference to FIG.
Will be described with reference to. As shown in FIG. 4, in this embodiment, the purifying material 20a is arranged at the bottom of the anaerobic septic tanks 11a and 11b, and the purifying section 21 is arranged on the inner surfaces of the anaerobic septic tanks 11a and 11b, the aerobic septic tank 12 and the protruding wall 16. And

As a result, as compared with the first embodiment, the number of the purification section and the purification material to which the microorganisms for purifying the sewage adhere is reduced, but the allowable amount of inflow into the combined septic tank increases, so that the inflowing sewage is discharged. The time until purification becomes longer, the purification time of the wastewater that has flowed into the septic tank becomes longer, and the discharge of the wastewater in the unpurified state is reduced.

A third embodiment of the present invention will be described below with reference to FIG.
Will be described with reference to. As shown in FIG. 5, in the present embodiment, the anaerobic septic tanks are four tanks 11c, 11d, 11e, and 11f, and the number of transfer tubes is increased accordingly.
c, 19d, 19e and 19f were placed in the purifier.

As a result, the permissible inflow of sewage increases, and the number of purification parts and purification materials to which microorganisms for purifying sewage adhere are increased. Therefore, the purification time of the inflowing sewage becomes longer, and the sewage can be purified more reliably and sufficiently. The discharge of uncleaned wastewater is further reduced.

In the first to third embodiments, the purification material 20
Although polypropylene is used as the material for the a, 20b and the purification unit 21 and the shape of the purification material 20a, 20b is spherical or corrugated, the present invention is not limited to this, and for example, polyvinylidene chloride is used as the material, and the purification material 20a, The shape of 20b may be a polygonal prism or a sawtooth shape, as long as microorganisms are easily attached thereto. Further, although the number of septic tanks is set to 3 or 5 in the first to third embodiments, it is not necessary to limit the number of septic tanks.

[0019]

As is clear from the above description, the purifying apparatus of the present invention is provided with a purifying section for adhering microorganisms to the inner surface of the septic tank, and the time during which sewage flowing into the septic tank contacts the microorganisms. That is, the purification time of the sewage becomes longer, and the sewage discharged in the unpurified state can be reduced.

[Brief description of drawings]

FIG. 1 is a cutaway perspective view of a main part of a purification device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line A-A ′ of the purification device in FIG.

FIG. 3 is a perspective view of a purifying material used in the device.

FIG. 4 is a sectional view of a purifying device according to a second embodiment of the present invention.

FIG. 5 is a sectional view of a purifying device according to a third embodiment of the present invention.

FIG. 6 is a perspective cutaway view of a main part of a conventional purification device.

FIG. 7 is a cross-sectional view taken along the line B-B ′ of the purification device in FIG.

[Explanation of symbols]

11a, 11b, 11c, 11d, 11e, 11f Anaerobic purification tank 12 Aerobic purification tank 14 Inflow pipe 17 Discharge pipe 20a, 20b, Purification material 21 Purification part

Claims (3)

[Claims] 1. An inflow pipe for inflowing sewage, a septic tank into which sewage that has passed through the inflow pipe is injected, a discharge pipe for discharging sewage in the septic tank, and a purifying unit provided on the inner surface of the septic tank. Purification device equipped with. 2. The purifying apparatus according to claim 1, further comprising a purifying material at the bottom of the septic tank. 3. The purifying apparatus according to claim 1, wherein the purifying section is provided only on the inner surface of the septic tank.