JPH11179383A - Organic waste water-treating apparatus and solid substance-containing waste water-treating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waste water-treating apparatus which can be easily operated well, and a waste water treating method. SOLUTION: An org. waste water-treating apparatus for treating an org. waste water is provided with waste water-treating parts 34a-34d which comprise a microorganism carrier and treat org. components with microorganisms and the waste water-treating parts 34a-34d have larger void vol. in the waste water introducing side in comparison with the waste water discharging side. Therefore, even when solid substances flow thereinto, remarkable clogging do not occur in the waste water-treating part. Namely, even if solid substances flow thereinto and stay in the waste water-treating part, they are more uniformly distributed from the waste water introducing side to the waste water discharging side, and the void can be ensured, feeding of oxygen to the waste water-treating part can be well performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an organic wastewater treatment apparatus and a solid matter-containing wastewater treatment apparatus.

[0002]

2. Description of the Related Art In recent years, methods for treating organic wastewater using aerobic microorganisms have been actively researched and developed. For example, in a sewage treatment plant, the activated sludge method is usually adopted,
In the combined type septic tank, the activated sludge method and the immersion filter method are adopted.

As for garbage discharged from homes and the like, research and development has been conducted to treat garbage crushed by a disposer as garbage-containing wastewater.

For example, Japanese Patent Application Laid-Open No. 9-1117 discloses that
The garbage-containing wastewater flows into the solids treatment section, where the solids are decomposed by microorganisms, and then the primary treated water discharged from the solids treatment device is introduced into the wastewater treatment tank where it is aerated. Discloses that solid matter is decomposed and removed from garbage-containing wastewater pulverized by a disposer and the wastewater is purified.

[0005] In the apparatus disclosed in this publication, wastewater is aerated by a diffuser in a wastewater treatment tank.
Basically, the same treatment as the activated sludge method is performed.

On the other hand, the present inventors use a wastewater treatment apparatus (secondary treatment apparatus) provided with a packed bed in which a microorganism carrier is filled at the subsequent stage of a solid substance treatment apparatus (primary treatment apparatus). It has been found that wastewater can be satisfactorily purified.

[0007]

However, in the wastewater treatment apparatus provided with this packed bed, the solids that have not been completely removed by the solid matter treatment apparatus or the like, the packed bed of the wastewater treatment apparatus,
In particular, the packed bed on the drainage introduction side may be clogged, and oxygen may not be supplied to the microorganisms, so that the microorganisms may not be properly treated.

The present invention has been made in view of the above-mentioned problems, and has as its object to provide an organic wastewater treatment apparatus and a solid matter-containing wastewater treatment apparatus which can be easily operated satisfactorily.

[0009]

An organic wastewater treatment apparatus according to the present invention is an organic wastewater treatment apparatus for treating organic wastewater, comprising a microorganism carrier, and a wastewater treatment section for treating organic components by microorganisms. The wastewater treatment section is characterized in that the porosity is larger on the wastewater introduction side than on the wastewater discharge side.

[0010] In the present invention, since the porosity of the wastewater treatment section is larger on the wastewater introduction side than on the wastewater discharge side, no extreme clogging occurs in the wastewater treatment section even if solids enter. That is,
Even if solid matter flows in and stays in the wastewater treatment section, the solid matter is more uniformly dispersed from the wastewater introduction side to the wastewater discharge side, and a void can be secured, so that oxygen can be favorably supplied to the wastewater treatment section.

The wastewater treatment section may be constituted by a plurality of wastewater treatment sections or a single wastewater treatment section.

In particular, the porosity of the wastewater treatment section is characterized in that it changes stepwise from the wastewater introduction side to the wastewater discharge side.

Further, the porosity of the wastewater treatment section changes substantially continuously from the wastewater introduction side to the wastewater discharge side.

An organic wastewater treatment apparatus of the present invention is an organic wastewater treatment apparatus for treating organic wastewater, comprising a plurality of wastewater treatment sections comprising a microorganism carrier and treating organic components by microorganisms in multiple stages. The plurality of wastewater treatment units are characterized in that the porosity of the wastewater treatment unit on the wastewater discharge side is larger than that of the wastewater treatment unit on the wastewater introduction side.

In the present invention, since the porosity of the plurality of wastewater treatment sections on the wastewater discharge side is larger than that of the wastewater treatment section on the wastewater introduction side, even if solid matter flows in, the wastewater treatment section is extremely susceptible. No clogging. That is, even if the solid matter flows in and stays in the wastewater treatment section, it is more uniformly dispersed from the wastewater treatment section on the wastewater introduction side to the wastewater treatment section on the wastewater discharge side,
Since a void can be secured, oxygen can be favorably supplied to the wastewater treatment section.

In this case, the drainage treatment sections on the drainage discharge side are compared with the drainage treatment sections on the drainage introduction side from the nearest drainage treatment section on the drainage introduction side to all the drainage treatment sections on the nearest neighborhood on the drainage discharge side. Although it is preferable to increase the porosity of the wastewater treatment, it is effective to perform at least the next wastewater treatment part from the wastewater treatment part closest to the wastewater introduction side to the next wastewater treatment part. The porosity may be increased for several wastewater treatment sections from the section.

In particular, the plurality of wastewater treatment sections are characterized in that the porosity of the wastewater treatment sections changes stepwise.

The porosity may be changed by changing the average particle diameter of the microorganism carrier constituting the wastewater treatment section.

The organic wastewater treatment apparatus of the present invention is an organic wastewater treatment apparatus for treating organic wastewater, comprising a wastewater treatment section comprising a microorganism carrier and treating organic components by microorganisms. Is characterized in that the average particle size of the microorganism carrier is larger on the wastewater introduction side than on the wastewater discharge side.

In the present invention, since the average particle diameter of the microorganism carrier in the wastewater treatment section is larger on the wastewater introduction side than on the wastewater discharge side,
In the wastewater treatment section, the porosity can be larger on the wastewater introduction side than on the wastewater discharge side. Therefore, even if the solid material flows, extreme clogging does not occur in the wastewater treatment section. That is, even if the solid material flows in and stays in the wastewater treatment section, it is more uniformly dispersed from the wastewater introduction side to the wastewater discharge side, and a void can be secured, so that the supply of oxygen to the wastewater treatment section is excellent. I can do it.

[0021] The wastewater treatment section may be constituted by a plurality of wastewater treatment sections or a single wastewater treatment section.

In particular, the average particle diameter of the microorganism carrier in the wastewater treatment section changes stepwise from the wastewater introduction side to the wastewater discharge side.

Further, the average particle size of the microorganism carrier in the wastewater treatment section changes substantially continuously from the wastewater introduction side to the wastewater discharge side.

The organic wastewater treatment apparatus of the present invention is an organic wastewater treatment apparatus for treating organic wastewater, comprising a plurality of wastewater treatment sections comprising a microorganism carrier and treating organic components with microorganisms in multiple stages. The plurality of wastewater treatment units are characterized in that the average particle size of the microorganism carrier in the wastewater treatment unit on the wastewater discharge side is larger than that of the wastewater treatment unit on the wastewater introduction side.

In the present invention, the plurality of wastewater treatment sections have a larger average particle diameter of the microorganism carrier in the wastewater treatment section on the wastewater discharge side than the wastewater treatment section on the wastewater introduction side. The porosity of the wastewater treatment unit on the wastewater discharge side can be made larger than that of the wastewater treatment unit. Therefore, even if the solid material flows, extreme clogging does not occur in the wastewater treatment section. In other words, even if solid matter flows in and stays in the wastewater treatment unit, the solid matter is more uniformly dispersed from the wastewater treatment unit on the wastewater introduction side to the wastewater treatment unit on the wastewater discharge side, and a void can be secured. Oxygen can be supplied satisfactorily.

In this case, the drainage treatment section on the drain discharge side is compared with the drainage treatment section on the drain introduction side from all the drainage treatment sections nearest to the drainage introduction side to the drainage treatment section nearest to the drainage discharge side. It is preferable that the average particle size of the microbial carrier is large, but it is effective to perform at least the next wastewater treatment section from the wastewater treatment section closest to the wastewater introduction side. The average particle size of the microorganism carrier may be increased from the adjacent wastewater treatment unit to several wastewater treatment units.

Further, the plurality of wastewater treatment sections are characterized in that the average particle size of the microorganism carrier in each wastewater treatment section changes stepwise.

In particular, the plurality of wastewater treatment sections are configured in multiple stages via an auxiliary section, and oxygen is supplied to the wastewater treatment section via the auxiliary section.

A solid-containing wastewater treatment apparatus having the organic wastewater treatment apparatus of the present invention, comprising an organic solid matter treatment apparatus for treating organic solid-containing wastewater at a stage preceding the organic wastewater treatment apparatus, The organic wastewater treatment device processes organic wastewater discharged from the organic solid matter treatment device.

In the present invention, the organic solids are treated and the organic components of the organic wastewater can be favorably decomposed by microorganisms.

[0031] In particular, the organic solid processing apparatus is characterized by comprising a processing section comprising a microorganism carrier and processing the organic solid with microorganisms.

The above-mentioned wastewater treatment section has a water retention property, has a space through which air can pass, and further contains microorganisms,
In particular, the structure is preferably composed of a large number of microorganism carriers that can easily hold and inhabit the aerobic microorganisms. For example, a structure filled with a granular porous material may be used. Preferred forms include wood chips. Further, the above-mentioned wastewater treatment section may be in a form filled with a microorganism carrier.

It is preferable that the above-mentioned auxiliary part is disposed in close contact with the wastewater treatment part. As the configuration of the auxiliary portion, one having water retention, and preferably having a higher porosity than the drainage treatment portion immediately above, is good. With this configuration,
Wastewater from the wastewater treatment section can be promoted. The auxiliary portion may be configured to be filled with, for example, a granular porous material. In this case, the granular porous material is preferably larger than the microorganism carrier.

In this specification, the term "particle size" is used to indicate the size of various shapes including spheres. The "porosity" indicates the degree of the gap between the microorganism carriers in the wastewater treatment section. In this case, a large porosity indicates that the total gap between the microorganism carriers is large.

[0035]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment according to the present invention will be described with reference to the drawings. FIG. 1 is an overall schematic configuration view of a solid-containing wastewater treatment device provided with an organic wastewater treatment device (primary treatment device) as viewed from the front, and FIG. 2 is a side view of the primary treatment device of the solid-containing wastewater treatment device. FIG. 3 is a schematic perspective view of a secondary treatment device of the solid-containing wastewater treatment device. The present apparatus treats garbage-containing wastewater containing garbage (kitchen waste) from a kitchen or the like as organic solid-containing wastewater. In the apparatus of the present embodiment, garbage containing garbage, in which garbage crushed by a disposer provided in a drain of a household sink is integrated with tap water, is introduced. -The organic wastewater treatment device may be incorporated in the organic wastewater treatment device.

In FIG. 1, reference numeral 10 denotes a primary treatment device for decomposing organic solids such as garbage. Reference numeral 12 denotes a container (tank) having a hopper structure that constitutes the primary processing apparatus 10. Specifically, a cross section having a rectangular cylindrical portion 12a and a stripe-shaped drainage port 12b at a portion corresponding to a vertex at a lower portion thereof is provided. And a triangular portion 12c.

Reference numeral 14 denotes a size 1.
It is a treatment layer (treatment section) of about 15 cm thickness filled with a wood chip (microbial carrier) made of cedar sawdust of about 5 mm. The treatment layer 14 filters the introduced garbage-containing wastewater to discharge organic wastewater, traps organic solids (crushed garbage), and forms organic matter by aerobic microorganisms living inside the garbage. It has a function of decomposing a solid substance. In the present embodiment, cedar sawdust (porous material) is used as a microorganism carrier, but it has a filtering function of trapping organic solids and discharging wastewater, and has a water retention property, and has microorganisms attached. Any material that can easily inhabit can be used, and for example, a porous material such as a porous plastic or a porous glass material can also be used.

Reference numeral 16 denotes a first auxiliary layer (first auxiliary portion) closely disposed below the processing layer 14, and its porosity is set to be larger than the porosity of the processing layer 14. By having water retention, the treatment layer 14 and the first auxiliary layer 1
It has a function of minimizing environmental changes at the boundary of No. 6 and promoting discharge of wastewater from the treatment layer 14. This first auxiliary layer 16
Specifically, is a configuration in which foamed glass particles (porous glass particles) having a particle size of about 5 mm larger than a microorganism carrier are filled.

Reference numeral 18 denotes a fibrous structure (porous layer) having a thickness of 2 to 3 which is disposed in close contact with the lower side of the first auxiliary layer 16.
cm of the second auxiliary layer, the porosity of which is the first auxiliary layer 1
The porosity is set to be larger than the porosity of No. 6 and has a function of promoting discharge of drainage from the first auxiliary layer 16. The second auxiliary layer 18 has a mat shape formed by entanglement of many hard plastic fibers having a wire diameter of about 0.5 mm.

Reference numerals 20 and 20 denote corrugated plates for drainage collection and discharge disposed below the second auxiliary layer 18. This corrugated sheet material 2
Numerals 0 and 20 are disposed obliquely toward the drain port 12b so as to facilitate drainage (primary treatment liquid) toward the drain port 12b to form an inverted triangular section 12c.

Reference numeral 24 denotes an apparatus for turning over the surface of the treatment layer 14 for preventing the formation of a lump made of wood chips or the like.

In the primary treatment apparatus 10, when garbage-containing wastewater is introduced, crushed garbage, which is an organic solid, is filtered and separated by the treatment layer 14, and the organic liquid (organic liquid) is removed. Wastewater) is treated layer 14, first auxiliary layer 16,
Then, the light passes through the second auxiliary layer 18 and is discharged from the drain port 12 b through the corrugated sheets 20, 20.

In the treatment layer 14, the filler (microorganism carrier) is a porous material, microorganisms are easily retained and inhabited, and organic substances as nutrients are sufficiently replenished from waste water containing garbage. Since the air is sufficiently supplied from the voids, aerobic microorganisms proliferate. Therefore, organic solids (crushed garbage) and the like trapped in the treatment layer 14 are favorably decomposed by the aerobic microorganisms.

In the above configuration, the primary processing unit 10
If the air is supplied to the treatment layer 14 by attaching an air supply mechanism to the treatment layer 14, the aerobic decomposition by the aerobic microorganisms can be promoted and the microorganisms can be formed in the treatment layer 14 so as to suppress the formation of clumps composed of microorganism carriers and the like. The water retention of the carrier can be adjusted.

Reference numeral 26 denotes a reserve tank provided at the lower stage of the primary treatment device 10, in which organic waste water (primary treated water) discharged from the drain port 12b is dropped and stored. Compressed air is supplied from an air pump 28 to the reserve tank 26, and an organic wastewater stored inside is aerated.

Reference numeral 30 denotes a secondary treatment device as an organic waste water treatment device for treating organic waste water (primary treated water) from the reserve tank 26.

The secondary processing device 30 includes a cylindrical container 32
A drainage treatment layer (drainage treatment part) 34 with a thickness of about 15 cm
a to 34d have a four-layer structure in which four layers are laminated via first auxiliary layers (first auxiliary parts) 36a to 36d each having a thickness of 2 to 3 cm, and are disposed in close contact with the first auxiliary layer 36d on the bottommost side. A second auxiliary layer (second auxiliary portion) 38.

The treatment layers 34a to 34d are layers filled with wood chips (microbial carriers) made of cedar sawdust, and contain therein organic components in the introduced organic wastewater. It has a function of oxidative decomposition treatment by aerobic microorganisms.

The processing layers 34a to 34d are provided with the wood chips so that the average particle size of the processing layers 34a to 34d becomes smaller in the order of the processing layers 34a, 34b, 34c, and 34d. Is filled, thus
Processing layer 34a, processing layer 34b, processing layer 34c, processing layer 3
The porosity inside the layer is reduced in the order of 4d. In the present embodiment, the size of the wood chip of the processing layer 34a is 5 to 7 mm, the size of the wood chip of the processing layer 34b is 4 to 5 mm, the size of the wood chip of the processing layer 34c is 3 to 4 mm, and the size of the processing layer 34d. The size of wood chips is 2
3 mm.

Each of the first auxiliary layers 36a to 36d, which are disposed in close contact with the lower side of each of the processing layers 34a to 34d,
The porosity is set to be larger than the porosity of the wastewater treatment layers 34a to 34d, and has water retention, so that each treatment layer 34a to 34d and each first auxiliary layer 36a to 3d are provided.
While reducing the environmental change at the boundary of 6d, each processing layer 34a
It has the function of promoting the discharge of wastewater from to 34d. Specifically, the first auxiliary layers 36a to 36d have a configuration in which substantially spherical foamed glass particles (porous glass particles) are filled, and the first auxiliary layer 36a has a particle size of 7 to 8 mm. 36b
Has a particle size of 5 to 6 mm, and the first auxiliary layer 36c has a particle size of 4 to 5 mm.
mm, the first auxiliary layer 36d has a particle size of 3 to 4 mm.

The second auxiliary layer 38 is a layer composed of a fibrous component (porous layer) closely attached to the first auxiliary layer 36d, and its porosity is the same as that of the first auxiliary layer 36d. It has a function to promote discharge of wastewater. The second auxiliary layer 38 has a mat shape formed by entanglement of a large number of hard plastic fibers having a wire diameter of about 0.5 mm.

An air pipe 39 connected to an air pump 28 is connected to each of the first auxiliary layers 36a to 36d, and compressed air from the air pump 28 is supplied to each of the first auxiliary layers 3a to 36d.
It is supplied to each of the processing layers 34a to 34d through 6a to 36d, and improves the habitat environment of the aerobic microorganisms in each of the processing layers 34a to 34d.

The primary treatment liquid in the reserve tank 26 is transferred from the water spray device 44 to the treatment layer 34 a on the upper side of the container 32 by a water pump 40 through a primary treatment liquid supply pipe 42 connected to the reserve tank 26. Water is supplied through a filter 45 for removing large solids. On the other hand, a drain pipe 46 is connected to the bottom of the container 32,
The treated water is drained from here.

In such a configuration of the secondary treatment device 30, the water pump 40 is driven to spray the primary treatment liquid in the reserve tank 26 over the entire surface of the treatment layer 34 a in the container 32 by the water spray device 44. And the first auxiliary layer 36a-
The treatment layers 34a to 34d having a four-layer structure through 36d descend while contacting microorganisms that decompose organic components.

Moreover, the secondary treatment device 30 has the largest porosity inside the treatment layer 34a on the wastewater introduction side, and the treatment layer 34b, the treatment layer 34c, and the treatment layer 34 on the wastewater discharge side.
The porosity is configured to be small in the order of d. As a result, the primary processing liquid from the reserve tank 26 contains solid matter,
Even if this is trapped in the secondary treatment device 30, it is uniformly trapped by the treatment layers 34a to 34d, so that when the porosity of the treatment layers 34a to 34d is the same, the treatment layer 34a on the drain introduction side is clogged. The possibility of clogging in the processing layers 34a to 34d can be reduced as compared with the possibility of clogging.

Therefore, the processing layer 34 in the secondary processing device 30
The air from the air pump 28 is sufficiently supplied to a to 34d, and the aerobic microorganisms adhere and propagate well in the treatment layer 34, and the organic components contained in the primary treatment liquid from the primary treatment tank 10 Effectively oxidatively decomposes.

Further, the secondary processing device 30 includes a processing layer 34a
To 34d in multiple stages. Processing tank 3
The primary processing liquid that has passed through the first auxiliary layer 36d is dispersed in the first auxiliary layer 36a having a high diffusibility function closely attached to the processing layer 34a and introduced into the next processing layer 34b. Leads to. Therefore, the primary treatment water supplied from the upper portion flows so as to spread over the entire treatment layers 34a to 34d, thereby preventing a short circuit path of the flow from being formed in a part of the treatment layers 34a to 34d.

As described above, the first auxiliary layers 36a-36
Instead of supplying air to the processing layers 34a to 34d via the line d, air may be supplied directly to the processing layers 34a to 34d.

Although not shown, in the present embodiment, the temperature inside the containers 12 and 32 is set to 20 to 40 ° C. so that the activity of the microorganisms can be sufficiently maintained by the heaters provided around the containers 12 and 32. It is controlled to become.

Further, in the above description, pure oxygen may be supplied instead of supplying air to the processing layers 34a to 34d.

In the above description, the secondary treatment apparatus 30 has a preferred configuration in which treatment layers are provided in multiple stages. However, as a single treatment layer having a large thickness, the porosity on the wastewater introduction side is reduced by the wastewater discharge side. It is effective to increase the porosity as compared with the porosity. The change in the porosity may be changed substantially linearly, or may be changed stepwise, for example, stepwise.

[0062]

The present invention can provide an organic wastewater treatment apparatus and a solid matter-containing wastewater treatment apparatus which can be easily operated well.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a solid-containing wastewater treatment device including an organic wastewater treatment device according to an embodiment of the present invention, as viewed from the front.

FIG. 2 is a schematic configuration diagram of a primary processing apparatus according to the above apparatus, as viewed from a side.

FIG. 3 is a schematic perspective view of a secondary processing apparatus according to the above apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Primary processing apparatus 12 Container 14 Processing layer 16 1st auxiliary layer 18 2nd auxiliary layer 20 Corrugated sheet 12b Drainage port 30 Secondary processing apparatus 34a-34d Processing layer 36a-36d 1st auxiliary layer 38a-38d 2nd auxiliary layer

Claims (13)

[Claims] 1. An organic wastewater treatment device for treating organic wastewater, comprising a wastewater treatment part comprising a microorganism carrier and treating organic components by microorganisms, wherein the wastewater treatment part has a wastewater introduction side on a wastewater discharge side. An organic wastewater treatment device characterized by having a high porosity. 2. The organic wastewater treatment apparatus according to claim 1, wherein the porosity of the wastewater treatment section changes stepwise from a wastewater introduction side to a wastewater discharge side. 3. The organic wastewater treatment apparatus according to claim 1, wherein the porosity of the wastewater treatment section changes substantially continuously from a wastewater introduction side to a wastewater discharge side. 4. An organic wastewater treatment apparatus for treating organic wastewater, comprising a plurality of wastewater treatment units comprising a microorganism carrier and treating organic components by microorganisms in multiple stages, wherein the plurality of wastewater treatment units are wastewater treatment units. An organic wastewater treatment apparatus characterized in that the porosity of the wastewater treatment section on the wastewater discharge side is larger than that of the wastewater treatment section on the introduction side. 5. The organic wastewater treatment device according to claim 4, wherein the plurality of wastewater treatment units are configured such that the porosity of the wastewater treatment units changes stepwise. 6. An organic wastewater treatment device for treating organic wastewater, comprising a wastewater treatment unit comprising a microorganism carrier and treating organic components by microorganisms, wherein the wastewater treatment unit has a wastewater introduction side on a wastewater discharge side. An organic wastewater treatment apparatus characterized in that the average particle size of the microorganism carrier is larger than that of the organic wastewater treatment apparatus. 7. The organic wastewater treatment apparatus according to claim 6, wherein the average particle size of the microorganism carrier in the wastewater treatment section changes stepwise from the wastewater introduction side to the wastewater discharge side. 8. The organic wastewater treatment apparatus according to claim 6, wherein the average particle size of the microorganism carrier in the wastewater treatment section changes substantially continuously from the wastewater introduction side to the wastewater discharge side. 9. An organic wastewater treatment apparatus for treating organic wastewater, comprising a plurality of wastewater treatment units comprising a microorganism carrier and treating organic components by microorganisms in multiple stages, wherein the plurality of wastewater treatment units are provided with wastewater. An organic wastewater treatment device, wherein the average particle diameter of the microorganism carrier in the wastewater treatment section on the wastewater discharge side is larger than that in the wastewater treatment section on the introduction side. 10. The organic wastewater treatment apparatus according to claim 9, wherein the plurality of wastewater treatment sections are configured such that the average particle size of the microorganism carrier in the wastewater treatment section changes stepwise. . 11. The wastewater treatment section is configured in multiple stages via an auxiliary section, and oxygen is supplied to the wastewater treatment section via the auxiliary section.
The organic wastewater treatment apparatus according to at least one of 9 or 10. 12. A solid-containing wastewater treatment device having the organic wastewater treatment device according to at least one of claims 1 to 11, wherein an organic solid-containing wastewater treatment device is provided before the organic wastewater treatment device. A solid-containing wastewater treatment apparatus comprising an organic solid matter treatment device for treating wastewater, wherein the organic wastewater treatment device treats organic wastewater discharged from the organic solid matter treatment device. 13. The solid matter-containing wastewater treatment apparatus according to claim 12, wherein the organic solid matter treatment device includes a treatment section made of a microorganism carrier and treating the organic solid matter with microorganisms. .