JP2001137876A - Excrement treatment system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an excrement treatment system for sufficiently ensuring the contact time of treatment liquid with bacteria and air, and for improving the decomposing performance of organic matters in excrement. SOLUTION: In an aeration tank 4a, a plate member 42a whose face to be brought into contact with air aerated from an aeration port 41a is arranged in a direction inclined from the ascending direction of the air is mounted at the ascending position of the air, and at least one or more plate members 43a whose faces to be brought into contact with the air are arranged in a direction inclined from the ascending direction of the air so as to be opposite to the direction of the plate member 42a or 43a formed just under it is mounted at the upper part of the plate member 42a so that this excrement treatment system can be constituted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulating human waste treatment apparatus capable of reusing treated water as toilet flush water.

[0002]

2. Description of the Related Art It is often difficult to secure wash water and dispose of treated water at an event venue, a construction site, or the like. It is effective to use a human waste treatment device.

[0003] In the above-mentioned circulation type human waste treatment apparatus, since the treated water is reused so as to be visible to the public, it is not appropriate that the treated water has an unpleasant odor. Therefore, in the above-mentioned circulation type night soil treatment apparatus, a high performance is generally required for decomposing and removing organic substances in night soil.

[0004] However, at event venues and construction sites,
Since the installation space is often limited, it is difficult to adopt a large-scale configuration of the human waste treatment apparatus. Also,
At an event site, a construction site, or the like, if chemical solution chemical treatment is used, the surrounding environment may be contaminated by a chemical substance. Therefore, it is common to use a urine treatment apparatus using microbial treatment.

Therefore, conventionally, an aeration method in which a treatment liquid is aerated to decompose organic substances in the treatment liquid by the metabolic action of aerobic microorganisms, and a treatment liquid is sprayed into a reaction tank filled with a filter medium,
There has been proposed a human waste treatment apparatus configured to combine the sprinkling filter method for decomposing organic substances by biological treatment and to take advantage of each treatment method. Hereinafter, the conventional human waste processing apparatus will be briefly described.

FIG. 14 is a schematic view showing an example of the above-mentioned conventional human waste processing apparatus. A conventional human waste treatment apparatus 101 includes, for example, a flush toilet 102 and this flush toilet 102
An aeration tank 103 for introducing excreta and aerating from below, a reaction tank 105 for introducing a treatment liquid from the aeration tank 103 by the action of a pump 104 and performing biological treatment, and a reaction tank 105 obtained through the reaction layer 105. A water tank 107 for introducing and storing the treated water by the action of the pump 106; and a water tank 109 for storing the treated water of the toilet 102 by the action of the pump 108.
Is to be circulated.

In the conventional human waste treatment apparatus 101, an aeration apparatus 103a is provided at the bottom of the aeration tank 103. That is, the aeration device 103a is
The aeration tank 103 can be aerated from below by sending air from the inside. When the air aerated by the aeration device 103a and the urine sufficiently come into contact with each other, the inside of the aeration tank 103 becomes an environment in which aerobic microorganisms can be actively activated.

A pump 1 is provided above the inside of the reaction tank 105.
A sprinkler 105a into which the processing liquid is introduced by the action of the liquid supply unit 04 is attached. A plurality of fixed nozzles 105b are attached to the sprinkler 105a, and their length and inner diameter are uniform. And below the sprinkler 105a,
For example, a filter medium 105c formed of a synthetic resin chip or the like
Is filled. A biofilm adheres to the filter medium 105c and comes into contact with the treatment liquid sprinkled from the sprinkler 105a.
Biological processing takes place.

[0009] Also, there has been disclosed a human waste treatment apparatus in which an aeration method and an anaerobic treatment for decomposing organic substances by the metabolic action of anaerobic microorganisms are combined to take advantage of each treatment method.

For example, in Japanese Patent Application Laid-Open No. Hei 9-1171,
One or more biological decomposition means for biologically treating wastewater containing human waste from a toilet bowl, and circulating the treated water treated by the biological decomposition means to recycle it as flush water for the toilet bowl There is disclosed a circulating purification apparatus comprising means for utilizing, wherein the one or more biological decomposition means performs an aerobic treatment and an anaerobic treatment in a wastewater circulating purification apparatus.

[0011]

However, in the above-mentioned conventional human waste processing apparatus 101, the air aerated from the aeration apparatus 103a immediately rises in the human waste in the aeration tank. There is a problem that the time is short and the ability to decompose organic substances by the metabolic action of aerobic microorganisms cannot be sufficiently brought out.

Further, in the above-mentioned conventional human waste processing apparatus 101, in the reaction tank 105, the sprinkled processing liquid flows downward along the inner peripheral surface of the reaction tank 105 without sufficiently contacting the filter medium 105c. The reaction layer 10
There was also a problem that the biological treatment efficiency in No. 5 was poor.

Further, in the reaction tank 105, the sprinkler 1
Since the length and inner diameter of the nozzle 105b of the nozzle 105a are uniform, the filter medium 105c is inserted from the tip of the nozzle 105b.
Overlap of the infiltration range of the treatment liquid sprinkled on
There is also a problem that a portion where the processing liquid does not permeate is generated, and the processing efficiency is poor.

[0014] The above problems are attributable to the inability to sufficiently secure the contact time between the treatment liquid and the microorganism or the air or between the treatment liquid and the microorganism. This is a common problem in that it does not sufficiently bring out the decomposition performance of organic substances originally possessed.

The present invention has been made in view of the above-mentioned conventional problems, and can sufficiently secure the contact time between the processing solution and the microorganism and the air, or between the processing solution and the microorganism, and can degrade the organic matter in the night soil. It is an object of the present invention to provide a human waste treatment apparatus capable of improving as much as possible.

[0016]

In order to achieve the above object, a human waste treatment apparatus according to the present invention has a surface in contact with the air at a position where air to be aerated from an aeration port rises in an aeration tank. Attach a plate member that is arranged obliquely to the rising direction of air. Above this plate member, the surface that comes into contact with air has an oblique direction that is opposite to the plate member that is directly below the rising direction of air. At least one or more of the plate members arranged in the above are attached. In this way, in the human waste treatment apparatus according to the present invention, the contact time between the treatment liquid, the microorganisms, and the air can be sufficiently ensured, so that the organic matter decomposition performance is improved as much as possible.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION A human waste treatment apparatus according to the present invention is arranged such that, in an aeration tank, a surface in contact with air is obliquely oriented with respect to a rising direction of air at a position where air to be aerated from an aeration port rises. And a plate member having a surface in contact with air disposed obliquely in a direction opposite to a plate member immediately below the rising direction of air above the plate member. This is the configuration attached above.

Here, the shape, the mounting position, and the number of the plate members to be mounted in the aeration tank are not particularly limited. However, the shape of the plate member is such that the guiding portion is arranged such that the surface in contact with the air aerated from the aeration port is oblique to the rising direction of the air, and the surface in contact with the air is in the rising direction of the air. It is composed of partition parts arranged in parallel, and both members are arranged so that the lower end of the partition part is closer to the inner peripheral surface of the aeration tank and lower than the upper end of the guide part of the plate member immediately below. Is desirable. With the arrangement and arrangement as described above, the air rising from the upper end of the guide portion of the plate member immediately below can be reliably received by the partition portion and taken over to the next plate member.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the accompanying drawings. 1 and 4 are partial cross-sectional views of the anaerobic decomposition tank and the aeration tank of the present embodiment, FIG. 2 is an explanatory view of FIG. 1 viewed from a plane, and FIG. 3 is a view of FIG. FIG. 5 is a partial cross-sectional view of FIG. 4 as viewed from the left side, FIG. 6 is a partial cross-sectional view of the reaction vessel of this embodiment, FIG.
Is a cross-sectional view of the reaction tank and the sprinkler of the present embodiment, FIG. 8 is an explanatory view of the sprinkler of the present embodiment, FIG. 9 is a cross-sectional view of the present embodiment as viewed from the front, FIG. FIG. 11 is a cross-sectional view of the present embodiment viewed from a plane, FIG. 11 is a cross-sectional view of the present embodiment viewed from a left side, and FIG. 12 is a cross-sectional view of the present embodiment viewed from a right side. FIG. 13 is a schematic diagram of the present embodiment.

First, the overall structure of this embodiment is shown in FIGS.
This will be described with reference to FIG. The human waste treatment apparatus S of the present embodiment includes a toilet section T and a disassembly processing section B, and a flush toilet 1 and a sewage tank 2 accommodate the disassembly processing section B in a housing 7a accommodating the toilet section T. Anaerobic decomposition tanks 3a to 3a
d, aeration tanks 4a to 4d, a reaction tank 5, and a water storage tank 6 are provided. Reference numeral 11 denotes a door provided at the entrance of the toilet section B.

The sewage tank 2 is a tank in which human waste introduced from the toilet bowl 1 is temporarily stored, and has an outlet 21 connected to the sewage pump 8a at the bottom thereof. 9 to 1
As shown in FIG. 1, the sewage tank 2 is formed so as to have a gradient toward the outlet 21 so that human waste flows in the direction of the outlet 21.

The reaction tank 5 is a cylindrical tank, and occupies the largest volume in the decomposition processing section B as shown in FIG. The anaerobic decomposition tanks 3a to 3d and the aeration tanks 4a to 4d
It is installed between the reaction tank 5 and the four corners of the housing 7b. The anaerobic decomposition tanks 3a to 3d and the aeration tanks 4a to 4d are bed-like tanks as shown in FIGS. 9 and 12, and 3a and 4a, 3b and 4b, 3c and 4c, 3d and 4d One side is joined and formed integrally. The water storage tank 6 is shown in FIG.
As shown in FIGS. 10 to 10 and FIG. 12, a rectangular tank is provided below the reaction tank 5.

The anaerobic decomposition tanks 3a to 3d are provided with aeration tanks 4a to 4a.
This is a tank whose width and depth are smaller than 4d. In this embodiment, the anaerobic decomposition tanks 3a to 3d and the aeration tanks 4a to 4d
As shown in FIG. 10, the surface on which the anaerobic decomposition tanks 3a to 3d are attached is arranged so as to face the four corners of the housing 7b. The reason for this arrangement is that temporary toilets installed at event venues or construction sites are often limited in installation space, so by effectively using the space of the disassembly processing section B, the size of the device can be reduced. This is for the purpose of conversion.

The dimensions of each part will be described in detail.
The overall dimensions including b are 260 cm wide x 280 high
cm × 130 cm in depth, of which the housing 7a of the toilet section T occupies a width of 110 cm and the housing 7b of the disassembling section B occupies a width of 150 cm. The dimensions of the aeration tanks 4a to 4d are 30cm wide x 20cm deep x 200c high.
m, width and depth of the anaerobic decomposition tanks 3a to 3d are 10cm
And the dimensions of the water storage tank 6 are 85 cm in width × 100 in depth.
cm × 40 cm in height.

Next, the flow of human waste processing in this embodiment will be described with reference to FIG. Night soil is introduced into the sewage tank 2 from the flush toilet 1 and temporarily stored therein. The sewage tank 2 and the anaerobic decomposition tank 3a are connected by a connecting pipe 9a.
Manure stored in the sewage tank 2 is introduced into the anaerobic decomposition tank 3a by the action of a sewage pump 8a provided in the middle of the connecting pipe 9a. Reference numeral 10 denotes a flow regulator provided to return human waste to the wastewater tank 2 when the anaerobic decomposition tank 3a is full.

Anaerobic decomposition tanks 3a-3d and aeration tanks 4a-
4d is provided with an inflow port or an outflow port, respectively, and as shown in FIG. 13, they are connected with a gradient by connecting pipes 9b to 9d. Therefore, the processing liquid introduced into the anaerobic decomposition tank 3a sequentially passes through each tank by the action of gravity.

The anaerobic decomposition tanks 3a to 3d have a closed structure in which the introduced human waste or the processing liquid does not come into contact with the air, and provide an environment in which anaerobic microorganisms can be actively activated. Therefore, organic substances such as proteins, fats and carbohydrates in the introduced human waste or the processing solution are decomposed into intermediate products such as lower fatty acids and alcohols by metabolic action of anaerobic microorganisms.

The aeration tanks 4a to 4d have an aeration port 41a at the bottom.
４４44d are provided, and the aeration ports 41a44d
Is supplied with air from the aeration pump 8b. That is, the aeration tanks 4a to 4d have an abundance of air due to aeration from below, so that the aerobic microorganisms can be actively activated. Therefore, organic substances such as proteins, fats, and carbohydrates in the introduced processing solution are decomposed into intermediate products such as lower fatty acids and alcohols, biogases such as methane and carbon dioxide, and water by metabolism of aerobic microorganisms. Is done.

The outlet of the aeration tank 4d is connected to the sprinkler 51 mounted inside the reaction tank 5 with a gradient through a connecting pipe 9e. Therefore, the processing liquid flowing out from the outlet of the aeration tank 4d is introduced into the sprinkler 51 by the action of gravity. Reference numeral 52 denotes a filter medium filled in the reaction tank 5, and in this embodiment, cedar chips are used.

In the present invention, the material of the filter medium 52 is not particularly limited. However, according to a test conducted by the present inventors, it is effective to use cedar chips as in this embodiment. It is known. This is considered to be because cedar chips are more porous than chips of other trees such as zelkova, for example, and there are many fine pores on the chip surface, so that biofilms can be easily attached.

In the human waste treatment apparatus S of this embodiment, no unpleasant odor remains in the treated water, and there is no problem in reusing it as washing water. May adhere as a light brown color. However, in the case of using the boiled cedar chips as the filter medium 52, the color does not adhere to the treated water,
It has proven most desirable.

The treatment liquid sprinkled from the sprinkler 51 descends in the reaction tank 5 while being in contact with the biofilm adhering to the surface of the filter medium 52, where biological treatment is performed. The treated water that has passed through the reaction tank 5 is introduced into a water storage tank 6 and is temporarily stored. The water tank 6 and the water tank 12 for storing the flush water of the toilet 1 are connected by a connecting pipe 9f, and the treated water stored in the water tank 6 is sent to the water tank 12 by the action of the pressurizing pump 8c. , Reused as washing water.

The reaction tank 5 is a tank in which biological treatment is performed. However, if the temperature falls in winter, the activity of microorganisms may decrease. In order to avoid this problem, the treated water in the water storage tank 6 is heated by a heater to 30-35.
° C, and a hot water coil is spirally wound around the reaction tank 5, and the heated treated water in the water storage tank 6 is circulated through the hot water coil using a pump. A method of preventing the temperature from decreasing is effective.

Next, the aeration tank 4a which is a main part of the present invention will be described with reference to FIGS. 1 to 3 showing the anaerobic decomposition tank 3a and the aeration tank 4a. As shown in FIG. 1, plate members 42a and 43a are attached to the aeration tank 4a of this embodiment. The plate member 42a is attached to a position where the air to be aerated from the aeration port 41a rises, and the plate member 42a is arranged so that the surface that contacts the air is oblique to the rising direction of the air. Further, above the plate member 42a, a surface that comes into contact with air has a plate member 42a directly below the rising direction of air.
Or a plate member 4 arranged in an oblique direction opposite to 43a.
3a are mounted in total. Reference numeral 44a denotes a water level checker provided to check the water level of the processing liquid from the outside, and 45a denotes an outlet of the aeration tank 4a connected to the aeration tank 4b via the connecting pipe 9b.

The anaerobic decomposition tank 3a is, as shown in FIG.
The tank is smaller in width and depth than the aeration tank 4a, and one side surface thereof is adhered to the aeration tank 4a and integrally formed with the aeration tank 4a, as shown in FIG. In addition, 31a
Denotes an inflow port of the anaerobic decomposition tank 3a into which human waste is introduced from the sewage tank 2 via the connecting pipe 9a, and 32a denotes a connection port connecting the anaerobic decomposition tank 3a and the aeration tank 4a.

In the human waste processing apparatus S of this embodiment, the plate members 42a and 43a configured as described above are mounted in the aeration tank 4a, so that the air to be aerated from the aeration port 41a and the plate members 42a and 43a. Since the air rises by detouring while contacting, the air does not sufficiently come into contact with the processing liquid and does not rise. Therefore, a sufficient contact time between the treatment liquid, the microorganism, and the air can be ensured, and the performance of decomposing organic substances by the metabolic action of the aerobic microorganism is improved as much as possible.

In the present invention, the shape and arrangement of the plate members 42a and 43a are not particularly limited. However, in the present embodiment, the surface of the plate member 42a which comes into contact with the air aerated from the aeration port 41a is this air. The guide portion 42a1 is disposed obliquely to the rising direction of the air, and the partitioning portion 42a2 is arranged so that the surface in contact with the air is disposed parallel to the rising direction of the air. Further, the plate member 43a is also formed by the guide portion 43a1 and the partition portion 43a2, similarly to the plate member 42a.

The plate member 43a is provided with a partition 43a2.
Is located at the lower end of the guide portion 42a of the plate member 42a immediately below.
1, or the plate member 43a is disposed so as to be closer to and below the inner peripheral surface of the aeration tank 4 than the upper end of the guide portion 43a1 of the plate member 43a immediately below.

The reason why the plate members 42a and 43a are constructed and arranged as described above is that the guide portion 42 of the plate member 42a immediately below is provided.
a1 or the air rising from the upper end of the guide portion 43a1 of the plate member 43a immediately below the partition member 43a of the plate member 43a.
This is because it can be reliably received by 2.
That is, when taking over the air between the plate members 42a and 43a, the air can be prevented from coming off from the plate members 42a and 43a and rising, so that the plate members 42a and 43a are It is desirable to arrange and arrange in such a manner.

In this embodiment, as shown in FIG.
Although a plate-shaped member is formed in a U-shape and the guiding portions 42a1 and 43a1 and the partitioning portions 42a2 and 43a2 are integrally formed, these members may be formed separately. good.

In this embodiment, the plate members 42a and 43a are attached by extending the partition portions 42a2 and 43a2 in the depth direction of the aeration tank 4a as shown in FIG.
The method of fixing to the inner peripheral surface of a is adopted. Also, an example is disclosed in which a total of five plate members 43a are mounted above the plate member 42a. However, the method of attaching the plate members 42a and 43a and the number of attached plate members 43a may be appropriately determined according to the shape and size of the aeration tank 4a, and are not particularly limited.

In this embodiment, in the aeration tank 4a, the shape of the bottom 46a near the aeration port 41a is different from that of the aeration port 4a.
It is in the shape of an inverted cone with the vertex 1a. Bottom 46a
The reason for adopting such a shape is that, for example, when this portion is formed in a columnar shape and an aeration port 41a is provided on the bottom surface thereof, stagnation occurs in the vicinity of the aeration port 41a where the air and the processing liquid do not sufficiently contact each other. This is to avoid sludge and decrease the efficiency of the aeration treatment. If the bottom 46a is formed in the shape of an inverted cone with the aeration port 41a at the apex as in the present embodiment, the treatment liquid sufficiently contacts the air, and the sludge does not accumulate in the aeration tank 4a. The efficiency of the aeration process is improved.

Next, the anaerobic decomposition tank 3b will be described with reference to FIGS.
And the aeration tank 4b will be described. 4 and 5,
45b is an inlet of the aeration tank 4b into which the processing liquid is introduced from the aeration tank 4a via the connection pipe 9b, and 31b is a connection pipe 9b.
Anaerobic decomposition tank 3 connected to anaerobic decomposition tank 3c via c
b. As shown in FIGS.
The position where b is provided is lower than the outlet 45a, and the outlet 3
1b.

That is, the anaerobic decomposition tank 3b and the aeration tank 4
b, the point that the order of the aeration treatment and the decomposition treatment by the anaerobic microorganism is reversed is that the anaerobic decomposition tank 3a and the aeration tank 4a
Is different from In addition, 41b is an aeration port, 42b is a plate member formed by the guide part 42b1 and the partition part 42b2, 43b is a plate member formed by the guide part 43b1 and the partition part 43b2, 44b is a water level checker, 46b Is the bottom of the aeration tank 4b, and 32b is the anaerobic decomposition tank 3b and the aeration tank 4b.
Are shown, but these configurations are not particularly different from the configurations in FIGS. 1 to 3 already described.

Next, the reaction tank 5 and the sprinkler 51 will be described with reference to FIGS. As shown in FIG. 6, the reaction tank 5 of the present embodiment has an inflow port 53 at the center of the upper surface into which treated water is introduced from the aeration tank 4d via the connection pipe 9e.
A sprinkler 51 is attached to a lower portion of the inlet 53, and a drain guide 5 projecting obliquely downward is provided on the inner peripheral surface of the reaction tank 5.
4 are provided around a total of four places. Reference numeral 52 denotes a filter medium filled in the reaction tank 5.

In the human waste processing apparatus S of this embodiment, the reaction tank 5 configured as described above is employed, so that the processing liquid sprinkled from the water sprayer 51 falls along the inner peripheral surface of the reaction tank 5. Even if there is, the treatment liquid can be guided toward the center of the reaction tank 5 by the action of the draining guide 54. Therefore, the treatment liquid does not flow along the inner peripheral surface of the reaction tank 5 and flows out to the water storage tank 6 without making sufficient contact with the filter medium 52, and the treatment efficiency of the biological treatment in the reaction tank 5 is increased. Can be improved.

Although the present embodiment discloses an example in which four draining guides 54 are provided at the positions shown in FIG. 6, the number and positions of the draining guides 54 are different from those in the reaction tank 5.
May be appropriately determined according to the shape and size of the device, and are not particularly limited.

As shown in FIGS. 7 and 8, the sprinkler 51 of the present embodiment has a large-diameter nozzle 5 near the periphery of the bottom surface of the distribution unit 57.
5 and four small-diameter nozzles 56 are alternately and radially attached to each other. The distribution section 57 is a cylindrical member as shown in FIG. 8, and has an outlet 57 a connected to the large-diameter nozzle 55 and an outlet connected to the small-diameter nozzle 56 on the bottom surface, as shown in FIG. 7. 57b is open.

The nozzle length of the large-diameter nozzle 55 is shown in FIG.
As shown in (2), the length is such that water can be sprayed from a position near the center of the reaction tank 5 and the inner peripheral surface of the reaction tank 5 to a position near the inner peripheral surface of the reaction tank 5. In the present embodiment, the inner diameter of the large inner diameter nozzle 55 is set to 2 cm with respect to the reaction tank 5 having the inner diameter of 100 cm.

The reason why the inner diameter of the large-diameter nozzle 55 is set to 2 cm is that, under the above-described conditions, the range in which the treatment liquid sprinkled from the large-diameter nozzle 55 penetrates into the filter medium 52 is approximately 55a in FIG. This is because the diameter becomes a substantially circular shape having a diameter from the outlet 57a to the inner peripheral surface of the reaction tank 5. However, the optimum value of the inner diameter of the large-diameter nozzle 55 varies depending on the ratio to the inner diameter of the reaction tank 5.
It is necessary to select the most suitable one according to the inner diameter of.

In this embodiment, the small inner diameter nozzle 56
The inner diameter of the nozzle is 1.5 cm, and the length of the nozzle is such that water can be sprayed to a position closer to the inner peripheral surface of the reaction tank than the watering position of the large inner diameter nozzle 55 as shown in FIG.

Under the above conditions, the small inner diameter nozzle 56
The range in which the treatment liquid to be more sprinkled permeates the filter medium 52 is substantially the range indicated by 56a in FIG. 7, and does not overlap the permeation range 55a of the large-diameter nozzle 55. Further, the processing liquid can be efficiently impregnated into a portion near the inner peripheral surface of the reaction tank 5 where the large-diameter nozzle 55 cannot impregnate the processing liquid. In order to obtain such optimal permeation ranges 55a and 56a, the inner diameter of the small inner diameter nozzle 56 needs to be in the range of 30 to 80% of the large inner diameter nozzle.

In the human waste processing apparatus S of this embodiment, the dispensing section 5
7 employs a sprinkler 51 in which four large-diameter nozzles 55 and four small-diameter nozzles 56 each configured as described above are alternately and radially mounted near the periphery of the bottom surface of the processing liquid 7. No overlap occurs in the infiltration ranges 55a and 56a, and the area of the portion where the treatment liquid does not penetrate can be reduced, so that the treatment efficiency of the biological treatment in the reaction tank 5 can be improved as much as possible.

[0054]

As described above, in the night soil treatment apparatus according to the present invention, the surface in contact with the air in the aeration tank is located at the position where the air to be aerated from the aeration port rises. Attach the plate members arranged diagonally,
Above this plate member, at least one plate member whose surface in contact with air is arranged in an oblique direction opposite to the plate member immediately below the rising direction of air is configured to be attached. This has the effect that the contact time between the liquid, the microorganism and the air can be sufficiently ensured, and the decomposition performance of organic substances can be improved as much as possible.

In the case of using a human waste treatment apparatus in which a drainage guide is provided around the inner peripheral surface of the reaction tank, the treatment liquid sprinkled into the reaction tank travels along the inner peripheral surface of the reaction tank to form a filter medium. It will not flow out into the water tank without making sufficient contact. Furthermore, in the case of using a human waste treatment apparatus in which the nozzle of the sprinkler is constituted by a large-diameter nozzle and a small-diameter nozzle, there is no longer any overlap in the permeation range of the processing liquid sprinkled on the filter medium, and the processing liquid is not Since the area of the portion that does not penetrate can also be reduced, there is an effect that the decomposition performance of organic substances can be further improved.

[Brief description of the drawings]

FIG. 1 is a partial sectional view of an anaerobic decomposition tank and an aeration tank of the present embodiment.

FIG. 2 is an explanatory diagram of FIG. 1 viewed from above.

FIG. 3 is a partial cross-sectional view of FIG. 1 as viewed from a left side surface.

FIG. 4 is a partial cross-sectional view of an aeration tank and an anaerobic decomposition tank of the present embodiment.

FIG. 5 is a partial cross-sectional view of FIG. 4 as viewed from a left side surface.

FIG. 6 is a partial cross-sectional view of a reaction tank of the present embodiment.

FIG. 7 is a sectional view of a reaction tank and a sprinkler of the present embodiment.

FIG. 8 is an explanatory diagram of a sprinkler according to the present embodiment.

FIG. 9 is a sectional view of the embodiment when viewed from the front.

FIG. 10 is a cross-sectional view of the present embodiment viewed from a plane.

FIG. 11 is a cross-sectional view of the embodiment when viewed from the left side.

FIG. 12 is a cross-sectional view of the embodiment when viewed from the right side.

FIG. 13 is a schematic diagram of the present embodiment.

FIG. 14 is a schematic view of a conventional human waste treatment apparatus.

[Explanation of symbols]

 S Human waste treatment apparatus 1 Toilet bowl 2 Sewage tank 3a, 3b, 3c, 3d Anaerobic decomposition tank 4a, 4b, 4c, 4d Aeration tank 41a, 41b Aeration port 42a, 42b, 43a, 43b Plate member 42a1, 43a1 Induction part 42a2, 43a2 Partitioning part 5 Reaction tank 51 Sprinkler 52 Filter medium 54 Drainage guide 55 Large internal diameter nozzle 56 Small internal diameter nozzle 57 Distributing section 6 Water tank

Continued on the front page F term (reference) 2D036 CB05 2D039 AC09 4D003 AA02 AB01 BA02 BA03 CA07 DA03 DA18 DA19 DA28 DA29 EA11 EA19 EA21 FA05 FA10 4D028 AA03 AA07 AB00 BB02 BB07 BC01 BC12 BC22 BC24 BC26 4D040 BB65

Claims (4)

[Claims] 1. A circulation type human waste treatment apparatus capable of reusing treated water as flush water for a toilet, comprising a flush toilet, a waste water tank for temporarily storing human waste, and a waste water introduced from the waste water tank. An anaerobic decomposition tank that decomposes organic matter in human waste by the metabolic action of anaerobic microorganisms, and an aeration tank that introduces the processing solution treated in this anaerobic decomposition tank and aerates from below to decompose by the metabolic action of aerobic microorganisms And a sprinkler for introducing and sprinkling the treatment liquid treated in the aeration tank, and contacting the treatment liquid with the filter medium, which is filled with a filter medium and sprinkled from above by the sprinkler, to form a biological sample. A reaction tank for performing a chemical treatment,
The aeration tank comprises a water storage tank for storing treated water obtained by the treatment in the reaction tank, and a surface in contact with the air is provided at a position where air to be aerated from the aeration port rises. A plate member arranged obliquely to the rising direction of the air is attached. Above this plate member, the surface that comes into contact with the air has an oblique direction opposite to the plate member immediately below the rising direction of the air. A human waste treatment apparatus, wherein at least one or more plate members arranged in the direction are attached. 2. A plate member, wherein a guide portion having a surface contacting air aerated from an aeration port is arranged obliquely to a rising direction of the air, and a plate contacting the air has a surface rising the air. It consists of a partition arranged in parallel to the direction, and the position of the lower end of this partition is arranged closer to the inner peripheral surface of the aeration tank and lower than the upper end of the guide portion of the plate member immediately below. The human waste treatment apparatus according to claim 1, wherein 3. The human waste treatment apparatus according to claim 1, wherein a draining guide projecting obliquely downward is provided on the inner peripheral surface of the reaction layer. 4. A nozzle having a large inner diameter capable of spraying water from a position between the center of the reaction tank and the inner peripheral surface of the reaction tank to a position closer to the inner peripheral surface of the reaction tank. A small-diameter nozzle which is capable of spraying water to a position closer to the inner peripheral surface of the reaction tank than the water-spraying position of the large-diameter nozzle, in a range of 30 to 80% of the inner diameter of the inner-diameter nozzle; The human waste treatment apparatus according to any one of claims 1 to 3, wherein the nozzles are alternately and radially attached to the distribution unit.