JP2002119971A - Toilet wastewater treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact toilet wastewater treatment apparatus capable of efficiently sterilizing toilet wastewater and capable of also deodorizing and discoloring the same. SOLUTION: A sieving device (20) for separating toilet wastewater into a liquid component and a solid component is connected to the drain pipe (11) of a toilet bowl (10). An electrolytic cell (30) for electrolyzing the liquid component is connected to the liquid component discharge port (25) of the sieving device (20).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet wastewater treatment apparatus, and more particularly to a toilet wastewater treatment apparatus configured to sterilize, deodorize, and decolor toilet wastewater.

[0002]

2. Description of the Related Art Conventionally, toilet effluent is directly drained into sewage, or once stored in a tank, then drained into sewage, and finally combined with other sewage such as rainwater or kitchen drainage in a sewage treatment facility. It is usual to perform centralized processing.

[0003] However, in the toilet care for sick and elderly people who are not able to move freely, Omar and Swaddling are usually used. However, these toilet cares not only place a great burden on caregivers, but also require caregivers. Careful, leaving a major problem with care work. In addition, conventional toilet care has a problem that it cannot be denied that it is one of the causes of hospital-acquired infection.

[0004] There is no report in Japan of a serious infection accident caused by pathogenic bacteria in the conventional sewage treatment system.
Discharging toilet wastewater without treatment has a risk of bacterial infection, etc., especially when toilet care is required as mentioned above, the place where the care recipient needs to be equipped with a sewer pipe It is usually impossible to drain toilet wastewater directly into the sewerage system, so it is inevitable that hygiene problems will occur even if proper handling precautions are taken. There is a need to perform treatments such as sterilization of toilet wastewater in a limited small enclosed space such as a part.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is intended to efficiently sterilize toilet wastewater with a compact device and to perform deodorization and decolorization. It is an object of the present invention to provide a toilet water treatment device.

[0006]

In order to achieve the above object, according to the present invention, a sieving device 20 for separating toilet wastewater into a liquid component and a solid component is connected to a drain pipe 11 of a toilet bowl 10. The liquid component discharge port 25 of the separating device 20 is provided with a technical means by connecting an electrolysis tank 30 having an electrolyzer 40 for electrolyzing the liquid component.

Therefore, the toilet wastewater treatment apparatus of the present invention has an operation of sieving wastewater into solids and liquids by the sieving device 20. On average, toilet wastewater is about 90% water. The liquid content from which the solid content has been removed is easy to handle, and furthermore, since the solid content occupies most of the organic matter in the toilet drainage, sterilization, deodorization, and decolorization are also facilitated.

[0008] Since the toilet wastewater contains various organic substances and salts and is usually conductive, the electrolysis tank 30 exhibits an effect of electrolysis. When toilet wastewater is electrolyzed, the generated oxygen has the effect of oxidizing organic substances. In particular, oxygen generated immediately after electrolysis is different from oxygen that normally exists in the atmosphere, is in an excited state, has high reactivity, and has high oxidizing power, and organic substances are oxidatively decomposed and microorganisms are killed. It shows.

It is known that oxygen generated by electrolysis is partially ozonized. Ozone is known to be a stronger oxidizing agent, and has an action of oxidizing organic substances in toilet wastewater together with the oxygen.

[0010] Toilet drainage usually contains salt (usually sodium chloride). When this salt comes in contact with the electric field of electrolysis, it has an action of producing chlorine and sodium hypochlorite. This chlorine and sodium hypochlorite are powerful deodorants, bleaching agents, and bactericides, and exhibit the effect of being deodorized, bleached, and sterilized by these chlorine and sodium hypochlorite. Therefore, the toilet wastewater treatment apparatus of the present invention exhibits an action of sterilizing, deodorizing, and decolorizing oxygen, ozone, chlorine, and sodium hypochlorite by electrolyzing toilet wastewater.

Next, according to a second aspect of the present invention, a sieving device 20 for separating toilet sewage into a liquid component and a solid component is connected to the drain pipe 11 of the toilet bowl 10. The outlet 25 is connected to an electrolysis tank 30 for electrolyzing a liquid component. The electrolysis tank 30 is provided with an anode electrode 42 made of a metal wire mesh having an ozone generation catalyst function on one side of the ion exchange membrane 41. A cathode electrode 43 made of a corrosion-resistant metal on the other surface side
And an agitating blade 50 that agitates the liquid in the electrolysis tank 30.

Therefore, in the toilet wastewater treatment apparatus of the present invention, since the electrolytic ozonizer 40a is provided in the electrolysis tank 30, the amount of rarely generated ozone cannot be compared in the first aspect. It is produced in a large amount and has an effect of efficiently sterilizing, deodorizing, and decoloring with ozone.

Next, in the toilet wastewater treatment apparatus of the third aspect, a sieving device 20 for separating toilet waste into a liquid component and a solid component is connected to the drain pipe 11 of the toilet bowl 10. An electrolysis tank 30 for electrolyzing the liquid is connected to the liquid discharge port 25. The electrolysis tank 30 has an ozone generation catalyst function on one side of the electrolyzer 40 or the ion exchange membrane 41. Electrode 42 made of a metal wire mesh
Into the electrolytic ozonizer 40a having a cathode electrode 43 made of a corrosion-resistant metal on the other side, a stirring blade 50 for stirring the liquid in the electrolysis tank 30, and the liquid in the electrolysis tank 30. This is a technical measure in which an ultraviolet ray irradiation lamp 60 for irradiating ultraviolet rays is provided.

[0014] It is known that ultraviolet irradiation has a disinfecting, deodorizing and decolorizing action. However, in the present invention, ultraviolet rays are generated by electrolysis and dissolved in toilet wastewater, rather than directly acting on toilet wastewater. Oxygen that is or is mixed as microbubbles is ozonized by ultraviolet irradiation, and this ozone is mainly used to exhibit sterilizing, deodorizing, decolorizing effects, and both electrolysis and ultraviolet irradiation excite oxygen. Ozonation is performed, and when both are used together, they act synergistically to generate ozone efficiently. As will be described later, the substance to be oxidized is excited by the irradiation of ultraviolet rays,
It exhibits an effect of easily oxidizing. Therefore, the present invention exhibits a more effective ozone oxidizing effect in addition to the effect of the second aspect.

Next, in the toilet wastewater treatment apparatus of the present invention, a sieving apparatus 20 for separating toilet wastewater into a liquid component and a solid component is connected to the drain pipe 11 of the toilet bowl 10. An electrolysis tank 30 for electrolyzing the liquid is connected to the liquid discharge port 25. The electrolysis tank 30 has an ozone generation catalyst function on one side of the electrolyzer 40 or the ion exchange membrane 41. Electrode 42 made of a metal wire mesh
An electrolytic ozonizer 40a having a cathode electrode 43 made of a corrosion-resistant metal in contact with the other surface, an ultraviolet irradiation lamp 60 for irradiating a liquid component with ultraviolet light in the electrolysis tank 30, and an electrolysis tank 30 in the electrolysis tank 30. In this case, a technical means including a salt introduction device 70 for supplying a salt to the liquid is provided.

Therefore, the toilet wastewater treatment apparatus of the present invention, in addition to the function of the third aspect, has the function of positively adding salt such as sodium chloride since the salt introduction device 70 is provided. It has the effect of promoting the production of chlorine and sodium hypochlorite.

Next, according to a fifth aspect of the present invention, a sieving device 20 for separating toilet wastewater into a liquid component and a solid component is connected to the drain pipe 11 of the toilet bowl 10. The outlet 25 is connected to an electrolysis tank 30 for electrolyzing a liquid component. The electrolysis tank 30 is connected to an electrolyzer 40 or a metal wire mesh having an ozone generation catalyst function on one surface side of the ion exchange membrane 41. An electrolytic ozonizer 40a in which an anode electrode 42 made of a corrosion-resistant metal is in contact with a cathode electrode 43 made of a corrosion-resistant metal on the other side; a stirring blade 50 for stirring the liquid in the electrolysis tank 30; An ultraviolet irradiation lamp 60 for irradiating the liquid component with ultraviolet light, a salt introduction device 70 for supplying salt to the liquid component in the electrolysis tank 30, and a defoaming agent for the liquid component in the electrolysis tank 30. A defoamer charging device 80 for charging is installed. Technical means comprising Te are those that took.

Therefore, in the toilet wastewater treatment apparatus of the present invention, since the defoaming agent charging device 80 is provided in addition to the function of the fourth aspect, the foaming in the electrolysis tank 30 is suppressed. When oxygen, hydrogen, and ozone are generated by the electrolysis, foam is generated and foams on the surface of toilet wastewater. However, when chlorine and sodium hypochlorite are generated by providing the salt introduction device 70, the reactivity of these is very high, so that foaming becomes extremely large, and it is assumed that spillage may occur from the electrolysis tank 30. The necessity of defoaming arises.

Next, according to a sixth aspect of the present invention, a sieving device 20 for separating toilet wastewater into a liquid component and a solid component is connected to the drain pipe 11 of the toilet bowl 10. The outlet 25 is connected to an electrolysis tank 30 for electrolyzing a liquid component. The electrolysis tank 30 is connected to an electrolyzer 40 or a metal wire mesh having an ozone generation catalyst function on one surface side of the ion exchange membrane 41. An electrolytic ozonizer 40a in which an anode electrode 42 made of a corrosion-resistant metal is in contact with a cathode electrode 43 made of a corrosion-resistant metal on the other side; a stirring blade 50 for stirring the liquid in the electrolysis tank 30; An ultraviolet irradiation lamp 60 for irradiating the liquid component with ultraviolet light, a salt introduction device 70 for supplying salt to the liquid component in the electrolysis tank 30, and a defoaming agent for the liquid component in the electrolysis tank 30. A defoamer charging device 80 for charging is installed. An exhaust port 32 of the electrolytic cell 30
The present invention employs a technical means in which a deodorizing tank 90 having a deodorizing device 91 for irradiating exhaust gas with ultraviolet rays and an activated carbon layer 92 for decomposing unreacted ozone generated by ultraviolet irradiation is connected. .

Therefore, in the toilet wastewater treatment apparatus of the present invention, in addition to the function of the fifth aspect, the deodorization tank 90 is provided continuously.
Exhaust also has the effect of being deodorized. Normally, ozone is generated by ultraviolet irradiation in the deodorizing device 91 that irradiates ultraviolet rays to perform deodorization. However, if the generated ozone is released into the atmosphere without limitation, it is harmful to the human body. Therefore, it is necessary to decompose this excess ozone into oxygen, and when the ozone comes into contact with the activated carbon layer 92, the ozone is decomposed into oxygen.

Next, according to a seventh aspect of the present invention, a sieving device 20 for separating toilet wastewater into a liquid component and a solid component is connected to the drain pipe 11 of the toilet bowl 10. An electrolysis tank 30 for electrolyzing a liquid component is connected to 25. The electrolysis tank 30 is connected to an electrolyzer 40 or a metal wire mesh having an ozone generation catalytic function on one side of an ion exchange membrane 41. An electrolytic ozonizer 40a having an anode electrode 42 made of a corrosion-resistant metal on the other surface in contact with a cathode electrode 43 made of a corrosion-resistant metal, and a stirring blade 50 for stirring the liquid in the electrolysis tank 30 are provided. 20 solids outlets 2
In FIG. 6, a technical means in which the microbial decomposition tank 100 is connected is employed.

Therefore, since the present invention has the microbial decomposition tank 100, it has the function of biodegrading solids in toilet wastewater.

Next, according to the invention of claim 8, the drain pipe 11 of the toilet bowl 10 is connected to a sieving device 20 for separating toilet drainage into liquid and solid components. The outlet 25 is connected to an electrolysis tank 30 for electrolyzing a liquid component. The electrolysis tank 30 is connected to an electrolyzer 40 or a metal wire mesh having an ozone generation catalyst function on one surface side of the ion exchange membrane 41. An electrolytic ozonizer 40a having a cathode electrode 43 made of a corrosion-resistant metal on the other side and a stirring blade 50 for agitating a liquid component in the electrolysis tank 30; An ultraviolet irradiation lamp 60 for irradiating the liquid component with ultraviolet light, a salt supply device 70 for supplying salt to the liquid component in the electrolysis tank 30, and a defoaming agent to the liquid component in the electrolysis tank 30. And a defoaming agent charging device 80 Solids discharge port 2 of the sieving device 20
6 is connected to a microbial decomposition tank 100, and an exhaust port 32 of the electrolysis tank 30 is provided with a deodorizing device 91 for irradiating exhaust gas with ultraviolet light and an activated carbon layer 92 for decomposing unreacted ozone generated by ultraviolet light irradiation. A deodorizing tank 90 having a flow path and a discharge path 101 provided with a pump 102 is provided at an exhaust port of the microbial decomposition tank 100. The technical means connected to the air plate 34 is taken.

Therefore, the toilet wastewater treatment apparatus of the present invention has a function of deodorizing the exhaust gas from the microbial decomposition tank 100 in addition to the function of the seventh aspect. Microbial decomposition tank 100
Ventilation is necessary for the growth of microorganisms inside. However, it can be assumed that this ventilation involves the release of odors and bacteria. Therefore, once the electrolytic bath is aerated, the exhaust gas comes into gas-liquid contact in the present invention to capture odor components and bacteria. It has the function of being collected.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In the figure, 10 is a toilet bowl, 12 is a drain port of the toilet bowl 10, and 11 is a drain pipe connected to this drain port. Although not shown, the toilet 10 is attached to a bed or a portable type that is inserted under the body of a care recipient, and can be temporarily installed in a corner of a hospital room, a construction site, or the like. Various types of conventionally known toilet bowls such as a temporary type toilet can be used. However, it is a matter of course that the present invention assumes that it is difficult to directly connect to ordinary sewage. Although not shown, the toilet 10 of the present invention is of a flush type having a water inlet or a tap water inlet.

It is a matter of course that a drain pipe 11 is connected to the drain port 12 of the toilet 10. The drain pipe 11 is provided with a sieving device 20 for separating toilet drain into liquid and solid components. Connected. In the sieving apparatus 20, in the example of FIG. 1, a screw conveyor 22 for scraping solids to the upper end side of the slant is accommodated in a slanted cylinder 21;
The screw conveyor 22 is configured to be rotated by a motor 23. The cylinder 21 is provided with a solids discharge port 26 on the inclined upper side and a part of the cylinder 21 on the inclined lower side is formed as a wire mesh portion 25b, and the liquid component is transmitted through the wire mesh portion 25b and dripped. (Falls). The cylinder 21 is provided with a chute 25a that covers the wire net 25b, and the lower end of the chute 25a serves as a liquid discharge port 25.

In the example of FIG. 2, the sieving apparatus 20 is
It is also used in a microbial decomposition tank 100 described later, and is a medium material 103 for organic substance-decomposing microorganisms and enzymes composed of sawdust and the like.
Is used also as a screen for liquid sieves, allowing only water to pass therethrough, and solids are removed together with the medium material 103 in the microbial decomposition tank 10.
It is made to stay within 0. That is, reference numeral 100a in FIG. 2 denotes a cylindrical container, and the cylindrical container 100a is composed of bearing rollers 109a, 109a and rails 109 riding thereon.
The cylindrical container 100a is rotatably supported in a slanted state with the cylindrical container 100b by a motor 107. Note that a predetermined amount of the culture medium 103 is stored in advance in the cylindrical container 100a.

A spiral blade 105a is integrally provided on the inner peripheral surface of the cylindrical container 100a.
When a rotates, the stored culture medium material 106 is scraped upward and inclined, as shown in FIG. 2, and is stirred while being biased upward. Further, a wire mesh portion 108 is provided at the inclined lower end side of the cylindrical container 100a.
The water in the toilet drainage that has been introduced into the inside 00a is discharged from the discharge port 25 below the wire netting 108.

The sieving apparatus 20 is not limited to the above-described example, but any sieving method known in the art can be used as long as the sewage can be separated into liquid and solid. is there.

An electrolysis tank 30 having an electrolyzer 40 for electrolyzing the liquid is connected to the liquid outlet 25 of the sieving apparatus 20. This electrolysis tank 3
Numeral 0 is for treating toilet wastewater to be drained. Since this treatment requires a predetermined time, it is required to have a capacity capable of retaining a predetermined amount of toilet wastewater. In addition,
It is also practical to prepare a plurality of electrolysis tanks 30 and alternately use them alternately. A relatively large preliminary tank is provided, and the electrolysis tank 30 sequentially treats toilet wastewater in the spare tank. It is also practical to do so. The electrolysis tank 30 is formed in a container shape having an inlet 31 and a normally closed outlet 33 having a valve 35, and further provided with an exhaust port 32.

An electrolyzer 40 is accommodated in the electrolyzer 30 so that toilet wastewater in the electrolyzer 30 is electrolyzed. In the electrolysis apparatus 40 of FIG. 1, an anode electrode 42 and a cathode electrode 43 are opposed to each other with a predetermined interval, and a DC voltage is applied between the electrodes 42 and 43 by a power supply 44. The two electrodes 4
Although the reference numerals 2 and 43 are immersed in the electrolytic bath 30 in the illustrated example, it is of course substantially the same even if they are provided outside the electrolytic bath 30 and the toilet wastewater is circulated through a bypass passage or the like. It is.

The electrolysis tank 30 has a stirring blade 50.
When the toilet wastewater is agitated, a uniform treatment can be performed. The electrolysis tank 30 is designed so that it cannot be drained from the drain port 33 until the treatment is completely completed, and that new toilet wastewater does not flow from the drainage inlet 31 during the electrolysis treatment. is there. Therefore, the use of the toilet is restricted during the electrolytic treatment, and when the electrolytic bath 30 has a sufficient capacity, the electrolytic treatment may be performed at night when the toilet is not normally used. If a plurality of the electrolysis tanks 30 are prepared and switched to be used, there is no restriction on the use of the toilet, and even if a relatively large spare tank is provided upstream of the electrolysis tank 30, the toilet can be used. This allows continuous use.

Both electrodes 42, 43 of the electrolyzer 40
It is sufficient to use a corrosion-resistant metal plate, but in this embodiment, a titanium plate plated with platinum is used, which promotes the generation of chlorine described later, and takes care not to be eroded by the generated chlorine. . In the electrolysis, the polarities of both electrodes 42 and 43 are switched at predetermined time intervals to prevent only one side of the electrodes from being easily contaminated and worn. Although not shown, the change of the charged electrode property can be easily implemented by the conventional technique.

Next, according to the second aspect of the present invention, the drainage pipe 11 of the toilet bowl 10 is connected to a sieving device 20 for separating toilet wastewater into a liquid component and a solid component. The outlet 25 is connected to an electrolysis tank 30 for electrolyzing a liquid component, which is the same as in the first embodiment.

In the present invention, the electrolysis tank 30 is used.
An electrolytic ozonizer 40a having an anode electrode 42 made of a metal wire mesh having an ozone generation catalytic function on one side of an ion exchange membrane 41 and a cathode electrode 43 made of a corrosion-resistant metal on the other side, A stirring blade 50 for stirring the liquid in the decomposition tank 30 is provided. That is, in the present invention, the oxygen generated by the electrolysis is converted into ozone having a higher oxidizing power, so that the toilet wastewater can be oxidized more efficiently.

Although the ion exchange membrane 41 is a solid, it is a kind of electrolyte and has a property that current can easily pass through. Specifically, Nafion (trade name, manufactured by DuPont, USA) was used as the ion exchange membrane 41. Then, as shown in FIG. 3, the electrode 4 is placed on both sides of the ion exchange membrane 41 in the center.
When the DC voltage is applied by contacting the electrodes 2 and 43, both electrodes 4
Since the electrodes 2 and 43 are installed at a short distance, intense electrolysis occurs even at a low voltage. Note that this electrolysis is performed by the anode electrode 42.
Is most effectively generated at the boundary between the part that is in contact with the ion exchange membrane 41 and the part that is not in contact. In order to provide many such boundary parts, the anode electrode 42 is formed of a metal wire net in the present invention. .

The electrolytic ozonizer 40a is
It is known that the use of platinum, nickel, gold or the like for the anode electrode 42 (it is of course also possible to use the above-mentioned titanium plated with platinum) has high ozone generation efficiency, and the cathode electrode 43 is made of a corrosion-resistant metal such as stainless steel. However, it has been experimentally confirmed that the ozone generation efficiency is high when a metal net made of a noble metal such as platinum is used.

Since ozone is generated on the side of the anode electrode 42, it is desirable that the toilet wastewater is uniformly oxidized with ozone if it flows along the surface of the anode electrode 42. In the present invention, the toilet wastewater is drained. The ozone generated by stirring by the stirring blade 50 rotated by the motor 51 moves immediately from the generation location, and is prevented from being decomposed again by the influence of the electric field.

Next, a third aspect of the present invention is to connect a sieving device 20 for separating toilet wastewater into a liquid component and a solid component to the drain pipe 11 of the toilet bowl 10, The outlet 25 is connected to an electrolysis tank 30 for electrolyzing a liquid component. The electrolysis tank 30 is connected to an electrolyzer 40 or a metal wire mesh having an ozone generation catalyst function on one surface side of the ion exchange membrane 41. An electrolytic ozonizer 40a having an anode electrode 42 made of a corrosion-resistant metal on the other side in contact with a cathode electrode 43 made of a corrosion-resistant metal, and a stirring blade 50 for stirring the liquid in the electrolysis tank 30 are provided. In the present invention, an ultraviolet irradiation lamp 60 for irradiating the liquid with ultraviolet light is provided in the electrolysis tank 30.

In the present embodiment, the ultraviolet irradiation lamp 60 has a wavelength of 253.7 nm. This wavelength is considered to be the wavelength that is most likely to decompose organic substances.However, the action of actually decomposing organic substances by ultraviolet rays is very mild. I do not expect. However, it utilizes the fact that ultraviolet rays excite oxygen and ozone, and the oxygen and ozone exhibit an oxidation function more efficiently, and that the substance to be oxidized is also excited and easily oxidized. Also,
When electrolysis occurs in the above-described excited state, it can be expected that the efficiency of ozonation of generated oxygen increases. The results of the experiment indicate that the ultraviolet irradiation lamp 6
Oxidation efficiency was improved as 0 was brought as close as possible to the place where electrolysis occurs.

Next, according to the fourth aspect of the present invention, a sieving device 20 for separating toilet wastewater into a liquid component and a solid component is connected to the drain pipe 11 of the toilet bowl 10. The outlet 25 is connected to an electrolysis tank 30 for electrolyzing a liquid component. The electrolysis tank 30 is connected to an electrolyzer 40 or a metal wire mesh having an ozone generation catalyst function on one surface side of the ion exchange membrane 41. An electrolytic ozonizer 40a in which an anode electrode 42 made of a corrosion-resistant metal is in contact with a cathode electrode 43 made of a corrosion-resistant metal on the other side; a stirring blade 50 for stirring the liquid in the electrolysis tank 30; An ultraviolet irradiation lamp 60 for irradiating the liquid with ultraviolet light is provided therein.

The present invention is provided with a salt introduction device 70 for supplying a salt to the liquid in the electrolysis tank 30. In this embodiment, the salt introduction device 70 includes a salt water storage tank 71 and a pump 72, and a predetermined amount of saline having a predetermined concentration is supplied by the pump 72 to the electrolysis layer 30.
To be delivered to Although not shown, the salt may be replaced with salt water, and may be in a powder or tablet form and charged into the electrolysis tank 30 in a predetermined amount.

In the electrolysis, when soft water is used as a raw material, salt may be added to impart conductivity.
In the present invention, not for the purpose of continuing the electrolysis, but for the purpose of bleaching with chlorine, a large amount of salt such as salt is introduced (as an example, the salt concentration in toilet wastewater is 1.
It is made to be about 5 to 2%. ) That, by electrolysis, actively produce chlorine and sodium hypochlorite, bleach,
This is to improve the sterilization efficiency.

Next, according to a fifth aspect of the present invention, a sieving apparatus 20 for separating toilet wastewater into a liquid component and a solid component is connected to the drain pipe 11 of the toilet bowl 10. The outlet 25 is connected to an electrolysis tank 30 for electrolyzing a liquid component. The electrolysis tank 30 is connected to an electrolyzer 40 or a metal wire mesh having an ozone generation catalyst function on one surface side of the ion exchange membrane 41. An electrolytic ozonizer 40a in which an anode electrode 42 made of a corrosion-resistant metal is in contact with a cathode electrode 43 made of a corrosion-resistant metal on the other side; a stirring blade 50 for stirring the liquid in the electrolysis tank 30; An ultraviolet irradiation lamp 60 for irradiating the liquid component with ultraviolet light and a salt feeding device 70 for supplying a salt content to the liquid content in the electrolysis tank 30 are provided therein.

The present invention is provided with a defoaming agent charging device 80 for charging a defoaming agent into the liquid in the electrolysis tank 30. The defoaming agent input device 80 is provided with the salt input device 7.
0 and is constituted by an antifoaming agent storage tank 81 and a pump 82 so that a predetermined amount of an antifoaming agent (such as a surfactant) having a predetermined concentration can be supplied to the electrolysis layer 30. It has been done. This defoaming agent foams when chlorine reacts violently with organic matter, and this foam may leak out of the electrolysis tank 30. Therefore, the foam is erased by the defoaming agent and the toilet wastewater does not leak out of the electrolysis tank 30. That's what I did.

Next, according to the invention of claim 6, a sieving device 20 for separating toilet wastewater into a liquid component and a solid component is connected to the drain pipe 11 of the toilet bowl 10, and the liquid sieving device of the sieving device 20 is connected. The outlet 25 is connected to an electrolysis tank 30 for electrolyzing a liquid component. The electrolysis tank 30 is connected to an electrolyzer 40 or a metal wire mesh having an ozone generation catalyst function on one surface side of the ion exchange membrane 41. An electrolytic ozonizer 40a in which an anode electrode 42 made of a corrosion-resistant metal is in contact with a cathode electrode 43 made of a corrosion-resistant metal on the other side; a stirring blade 50 for stirring the liquid in the electrolysis tank 30; An ultraviolet irradiation lamp 60 for irradiating the liquid component with ultraviolet light, a salt introduction device 70 for supplying salt to the liquid component in the electrolysis tank 30, and a defoaming agent for the liquid component in the electrolysis tank 30. A defoamer charging device 80 for charging is installed. It becomes Te has the same structure as claimed in claim 5.

Further, according to the present invention, a deodorizing device 91 for irradiating the exhaust gas with ultraviolet rays is provided at the exhaust port 32 of the electrolytic bath 30.
And a deodorizing tank 90 having an activated carbon layer 92 for decomposing unreacted ozone generated by the ultraviolet irradiation. Toilet wastewater is deodorized and odorless when oxidized by electrolysis. Therefore, the exhaust port 32 of the electrolysis tank 30 can be devised so that the untreated wastewater is sealed with the treated wastewater so that no odor is generated. However, in the present invention, it is supposed that an odor is generated when the toilet wastewater in the electrolysis tank 30 is shaken. Therefore, the exhaust gas is deodorized by irradiating the ultraviolet rays in the deodorization tank 90, and thereafter, the odor not reacting to the ultraviolet rays is emitted. The exhaust gas passes through an activated carbon layer 92 in order to adsorb the components with activated carbon and further decompose ozone generated by ultraviolet irradiation. In the figure, reference numeral 91 denotes an ultraviolet lamp constituting a deodorizing device, and a wavelength (184.9 nm (nanometer)) at which ozone is easily generated may be used. Reference numeral 92 denotes an activated carbon layer, and the activated carbon layer 92 is held by a wire mesh 93 or the like while maintaining air permeability.

Next, according to the invention of claim 7, the drainage pipe 11 of the toilet bowl 10 is connected to a sieving device 20 for separating toilet wastewater into a liquid component and a solid component. The outlet 25 is connected to an electrolysis tank 30 for electrolyzing a liquid component. The electrolysis tank 30 is connected to an electrolyzer 40 or a metal wire mesh having an ozone generation catalyst function on one surface side of the ion exchange membrane 41. An electrolytic ozonizer 40a having an anode electrode 42 made of a corrosion-resistant metal on the other side in contact with a cathode electrode 43 made of a corrosion-resistant metal, and a stirring blade 50 for stirring the liquid in the electrolysis tank 30 are provided. This is the same as the configuration of the second aspect.

In the present invention, a microbial decomposition tank 100 is connected to the solids discharge port 26 of the sieving apparatus 20. That is, claims 1 to 6 do not refer to the treatment of the sieved solid, but the treatment of the solid can include drying and incineration. However, drying and incineration require a large-sized apparatus, and a large amount of energy is required. Therefore, the present invention is a device capable of treating the solid content of toilet wastewater with a simple and compact device, and reduces and composts by biodegradation.

The microbial decomposition tank 100 has an inlet 104
And an exhaust port 105, and is configured in a container shape having a predetermined capacity. In the microbial decomposition tank 100, a medium material 103 such as sawdust and microorganisms and enzymes for decomposing organic substances are charged in advance. ing. A stirring blade 106 is accommodated in the microbial decomposition tank 100 to perform stirring. The stirring may be performed by rotating the stirring blade 106 several times every 30 minutes. Although not shown, the microbial decomposition tank 100 is provided with a heater, and the internal temperature is set to be about 30 to 40 ° C., which is optimal for the growth of microorganisms. Although the outlet is not shown,
The microbial decomposition tank 100 is provided with a hermetic lid for periodically discharging a medium material 103 that increases in volume with use.

Next, according to the invention of claim 8, the drainage pipe 11 of the toilet bowl 10 is connected to a sieving device 20 for separating toilet wastewater into a liquid component and a solid component. The outlet 25 is connected to an electrolysis tank 30 for electrolyzing a liquid component. The electrolysis tank 30 is connected to an electrolyzer 40 or a metal wire mesh having an ozone generation catalyst function on one surface side of the ion exchange membrane 41. An electrolytic ozonizer 40a in which an anode electrode 42 made of a corrosion-resistant metal is in contact with a cathode electrode 43 made of a corrosion-resistant metal on the other side; a stirring blade 50 for stirring the liquid in the electrolysis tank 30; An ultraviolet irradiation lamp 60 for irradiating the liquid component with ultraviolet light, a salt introduction device 70 for supplying salt to the liquid component in the electrolysis tank 30, and a defoaming agent for the liquid component in the electrolysis tank 30. A defoamer charging device 80 for charging is installed. , The solids discharge outlet 26 of the sieving device 20, was ligated microbial decomposition vessel 100 is the same as that of claim 7.

In the present invention, the exhaust port 32 of the electrolysis tank 30 has a deodorizing device 91 for irradiating the exhaust gas with ultraviolet rays and an activated carbon layer 92 for decomposing unreacted ozone generated by the ultraviolet irradiation. A deodorizing tank 90 is provided continuously. That is, the deodorizing tank 90 is the same as the deodorizing tank 90 of the sixth aspect.

In the present invention, the exhaust passage 105 provided with the pump 102 is provided at the exhaust port 105 of the microbial decomposition tank 100.
1 is provided, and the distal end of the exhaust passage 102 is connected to the diffuser plate 34 in the electrolysis tank 30. Microbial decomposition tank 10
Although the deodorizing tank 90 may be provided also at the exhaust port 0, ventilation is indispensable for the microorganism decomposing tank 100 for cultivation of microorganisms and a large amount of exhaust is required. A considerably large capacity is required. Therefore,
The exhaust of the microbial decomposition tank 100 is aerated in the wastewater of the electrolysis tank 30 and comes in gas-liquid contact to collect odorous substances and bacteria in the water and perform preliminary deodorization to reduce the size of the apparatus. It is something that is crazy.

[0054]

As described above, the present invention provides a toilet wastewater treatment apparatus that can sterilize, deodorize, and bleach toilet wastewater, so that the toilet wastewater can be safely handled as middle water after treatment. You can do it.

In particular, since the present invention treats toilet wastewater by sieving it into solids and liquids, most of the organic matter is solid, and the liquid is water containing a small amount of organic matter and inorganic matter. Therefore, it is possible to provide a toilet wastewater treatment apparatus that can be easily treated and the treated water can be handled completely safely even if it is sprayed in a garden.

Further, the solid content of the toilet wastewater from which a large amount of liquid has been removed is reduced in amount, so that it is easy to treat the solid content. An object of the present invention is to provide a toilet wastewater treatment apparatus capable of sufficiently treating in a decomposition tank.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a partial cross-sectional front view.

FIG. 3 is a partial cross-sectional front view of an embodiment of a sieving device used in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Toilet bowl 11 Drainage pipe 20 Sieving device 25 Liquid discharge port 26 Solid discharge port 30 Electrolysis tank 32 Exhaust port 34 Diffusion plate 40 Electrolysis device 40a Electrolytic ozonizer 41 Ion exchange membrane 42 Anode electrode 43 Cathode electrode 50 Stirring Wing 60 UV irradiation lamp 70 Salt injection device 80 Defoamer injection device 90 Deodorizing tank 91 Deodorizing device 92 Activated carbon layer 100 Microbial decomposition tank 101 Exhaust flow path 102 Pump

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B01D 53/77 C02F 1/50 520Q 4D050 53/66 531M 4D059 C02F 1/00 531R 4D061 1/32 540B 1 / 46 550D 1/50 510 550H 520 560C 531 560F 1/76 A 540 1/78 550 11/00 ZABC 11/02 560 E03D 5/016 9/10 1/76 C02F 1/46 101C 1/78 B01D 53/34 116F 11/00 ZAB 116A 11/02 116C E03D 5/016 120B 9/10 (72) Inventor Kazuyoshi Sawada 194, Yasuda, Oji, Kashiwazaki-City, Niigata Prefecture Inside SRS Co., Ltd. (72) Inventor Keiichi Shinada Kashiwa-shi, Niigata Prefecture 1350 Nishioki, Fujii, Kashiwazaki Silver Seiko Co., Ltd. (72) Akira Shaichi Hirota Shiota 5-5-1 Minami-Aoyama, Minato-ku, Tokyo F-term (reference) 2D038 AA04 2D039 AC10 4C080 AA03 BB02 CC13 JJ03 KK02 LL10 MM08 NN01 QQ11 4D002 AB02 AC10 BA02 BA04 BA05 CA06 CA07 CA13 DA35 DA51 A03 4 AB04 AB05 BA18 CA02 CA04 CA16 4D050 AA16 AB03 AB04 AB06 BB01 BB02 BB04 BB06 BC09 BC10 BD02 BD04 CA15 4D059 AA01 BA27 BJ01 BK01 BK13 BK21 CA18 CB06 CC01 DB33 4D061 DA10 DB01 DB10 DB19 DC03 DC04 EB03 EB03 EB03 EB03 EB03 EB03 EB02

Claims (8)

[Claims] 1. A sieving device (20) for separating toilet wastewater into a liquid component and a solid component in a drain pipe (11) of a toilet (10).
A toilet drain having an electrolysis tank (30) having an electrolyzer (40) for electrolyzing the liquid is connected to the liquid outlet (25) of the sieving device (20). Processing equipment. 2. A sieving device (20) for separating toilet wastewater into a liquid component and a solid component in a drain pipe (11) of a toilet (10).
An electrolysis tank (30) for electrolyzing the liquid is connected to the liquid outlet (25) of the sieving device (20), and an ion exchange tank is connected to the electrolysis tank (30). An electrolytic ozonizer (40a) having an anode electrode (42) made of a metal wire mesh having an ozone generation catalytic function on one side of the membrane (41) and a cathode electrode (43) made of a corrosion-resistant metal on the other side.
And a stirrer (50) for stirring the liquid in the electrolysis tank (30). 3. A sieving device (20) for separating toilet wastewater into a liquid component and a solid component in a drain pipe (11) of a toilet (10).
An electrolysis tank (30) for electrolyzing the liquid is connected to the liquid outlet (25) of the sieving device (20), and the electrolysis tank (30) is electrolyzed. One side of the device (40) or the ion exchange membrane (41) is in contact with an anode electrode (42) made of a metal mesh having an ozone generation catalytic function, and the other side is made in contact with a cathode electrode (43) made of a corrosion-resistant metal. Electrolytic ozonizer (40a) and the electrolysis tank (30)
A toilet wastewater treatment apparatus comprising a stirring blade (50) for stirring a liquid component in the inside, and an ultraviolet irradiation lamp (60) for irradiating the liquid component with ultraviolet rays in the electrolysis tank (30). 4. A sieving device (20) for separating toilet wastewater into a liquid component and a solid component in a drain pipe (11) of a toilet (10).
An electrolysis tank (30) for electrolyzing the liquid is connected to the liquid outlet (25) of the sieving device (20), and the electrolysis tank (30) is electrolyzed. One side of the device (40) or the ion exchange membrane (41) is in contact with an anode electrode (42) made of a metal mesh having an ozone generation catalytic function, and the other side is made in contact with a cathode electrode (43) made of a corrosion-resistant metal. Electrolytic ozonizer (40a) and the electrolysis tank (30)
UV irradiation lamp (6
0) and a salt water introduction device (70) for supplying a salt to the liquid in the electrolysis tank (30). 5. A sieving device (20) for separating toilet wastewater into a liquid component and a solid component in a drain pipe (11) of a toilet (10).
An electrolysis tank (30) for electrolyzing the liquid is connected to the liquid outlet (25) of the sieving device (20), and the electrolysis tank (30) is electrolyzed. One side of the device (40) or the ion exchange membrane (41) is in contact with an anode electrode (42) made of a metal mesh having an ozone generation catalytic function, and the other side is made in contact with a cathode electrode (43) made of a corrosion-resistant metal. Electrolytic ozonizer (40a) and the electrolysis tank (30)
A stirring blade (50) for stirring the liquid component in the electrolysis tank, an ultraviolet irradiation lamp (60) for irradiating the liquid component with ultraviolet light in the electrolysis tank (30), and a liquid component in the electrolysis tank (30). A toilet wastewater treatment apparatus comprising a salt supply device (70) for supplying salt and a defoamer supply device (80) for supplying a defoamer to the liquid in the electrolysis tank (30). 6. A sieving device (20) for separating toilet wastewater into a liquid component and a solid component in a drain pipe (11) of a toilet (10).
An electrolysis tank (30) for electrolyzing the liquid is connected to the liquid outlet (25) of the sieving device (20), and the electrolysis tank (30) is electrolyzed. One side of the device (40) or the ion exchange membrane (41) is in contact with an anode electrode (42) made of a metal mesh having an ozone generation catalytic function, and the other side is made in contact with a cathode electrode (43) made of a corrosion-resistant metal. Electrolytic ozonizer (40a) and the electrolysis tank (30)
A stirring blade (50) for stirring the liquid component in the electrolysis tank, an ultraviolet irradiation lamp (60) for irradiating the liquid component with ultraviolet light in the electrolysis tank (30), and a liquid component in the electrolysis tank (30). A salt charging device (70) for supplying salt and a defoaming agent charging device (80) for charging a defoaming agent to the liquid in the electrolysis tank (30); A toilet provided with a deodorizing tank (90) having an opening 32 and a deodorizing device (91) for irradiating exhaust gas with ultraviolet rays and an activated carbon layer (92) for decomposing unreacted ozone generated by ultraviolet irradiation. Wastewater treatment equipment. 7. A sieving apparatus (20) for separating toilet wastewater into a liquid component and a solid component in a drain pipe (11) of a toilet (10).
An electrolysis tank (30) for electrolyzing the liquid is connected to the liquid outlet (25) of the sieving device (20), and the electrolysis tank (30) is electrolyzed. One side of the device (40) or the ion exchange membrane (41) is in contact with an anode electrode (42) made of a metal mesh having an ozone generation catalytic function, and the other side is made in contact with a cathode electrode (43) made of a corrosion-resistant metal. Electrolytic ozonizer (40a) and the electrolysis tank (30)
A toilet blade (50) for agitating a liquid content in the toilet, and a wastewater treatment device for toilet comprising a microbial decomposition tank (100) connected to a solids discharge port (26) of the sieving device (20). 8. A sieving device (20) for separating toilet wastewater into a liquid component and a solid component in a drain pipe (11) of a toilet (10).
An electrolysis tank (30) for electrolyzing the liquid is connected to the liquid outlet (25) of the sieving device (20), and the electrolysis tank (30) is electrolyzed. One side of the device (40) or the ion exchange membrane (41) is in contact with an anode electrode (42) made of a metal mesh having an ozone generation catalytic function, and the other side is made in contact with a cathode electrode (43) made of a corrosion-resistant metal. The electrolytic ozonizer (40a), a stirring blade (50) for stirring the liquid in the electrolysis tank (30), and an ultraviolet irradiation lamp (60) for irradiating the liquid in the electrolysis tank (30) with ultraviolet light. ), A salt feeding device (70) for supplying salt to the liquid in the electrolysis tank (30), and an antifoaming agent for feeding a defoaming agent to the liquid in the electrolysis tank (30). And a solids outlet (26) of the sieving device (20). Is connected to a microbial decomposition tank (100), and an exhaust port (32) of the electrolysis tank (30) is provided with a deodorizing device (91) for irradiating the exhaust gas with ultraviolet rays. A deodorization tank (90) having an activated carbon layer (92) for decomposing ozone is connected, and a pump (102) is provided at an exhaust port of the microorganism decomposition tank (100).
A wastewater treatment apparatus for toilets, comprising: an exhaust passage (101) provided with an air passage; and a leading end of the exhaust passage (102) connected to a diffuser plate (34) in the electrolysis tank (30).