JP2001025787A - Waste water treating system for garbage disposer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized disposer waste water treating system capable of performing stable waste water treatment. SOLUTION: The system is provided with a disposer 2, a treating part 4 for treating the disposer waste water, a switching valve 3 for switching a pipe line passage to make the waste water flow into the treating part 4 at the time of using the disposer and a take-in device 5 for taking a part of the waste water into the treating part 4 (flow rate control tank 41) at the time except using the disposer. The take-in device 5 is constituted of a tank 51 storing the waste water at the time except using the disposer and having a prescribed capacity and a transporting device (airlift pump 52) for transporting the part of the waste water stored in the tank 51 to the treating part 4 (flow rate control tank 41).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposer wastewater treatment system for treating wastewater containing crushed garbage and the like from a disposer.

[0002]

2. Description of the Related Art As a practical waste water treatment system of this type, there is a full treatment system for treating both waste water when using a disposer and kitchen waste water when not using a disposer.

Further, as disclosed in Japanese Patent Application Laid-Open No. Hei 10-323657 (B09B 5/00), a switching valve is used to take in only wastewater when a disposer is used, and to process the wastewater. Drains have also been proposed.

[0004]

However, the above-mentioned full-volume treatment method is as large as the septic tank, and requires extensive installation work such as burying it underground, which makes installation in an existing house difficult.

[0005] Further, in the case of using a switching valve to take in only the wastewater when the disposer is used, treat it, and drain it,
Since the amount of polluted water in the drainage always increases compared to when the disposer is not used at all, if the drainage destination is a river or the like, it will lead to an increase in pollution, and if the drainage to the sewage system, the capacity of the sewage treatment plant will be insufficient. There was a problem and it was difficult to sell as a product.

Accordingly, the present invention has been made to solve such a problem, and an object of the present invention is to provide a disposer wastewater treatment system which can realize a small and stable wastewater treatment.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a disposer, a processing unit for treating disposer wastewater, and a pipe for flowing wastewater when the disposer is used to the processing unit. A switching valve for switching a path, and a take-in device for taking in a part of drainage other than when the disposer is used into the processing unit are provided.

[0008] Further, the intake device is characterized in that the intake device is configured to be a diversion device that diverts wastewater other than when the disposer is used at a predetermined ratio, and takes one of the diversion water into the processing section.

Further, the intake device may be constituted by a tank having a predetermined capacity for storing wastewater other than when the disposer is used, and a transfer device for transferring a part of the wastewater stored in the tank to the processing section. It is a feature.

[0010] Further, the intake device is a diversion device that diverts wastewater other than when the disposer is used at a predetermined ratio, a tank having a predetermined capacity for storing one of the wastewater from the diversion device, and a tank that is stored in the tank. And a transfer device for transferring a part of the wastewater to the processing section.

Further, the transfer device transfers a portion having a high organic substance concentration stored in a bottom portion of the tank to the processing section.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing a basic configuration of a disposer wastewater treatment system according to the present invention.

In this disposer wastewater treatment system, a disposer 2 connected to a sink 1 of a sink and a piping 21 through which wastewater from the disposer 2 flows are connected to the disposer 2.
A switching valve (three-way valve) 3 for switching to a pipe line 31 or 32 in accordance with the use of a disposer; a processing unit 4 connected to the pipe line 31 for flowing drainage when the disposer is used to process wastewater containing crushed disposers; A take-in device 5 connected to a pipe line 32 through which waste water other than when in use flows to take in a part of the waste water into the treatment unit 4, and treated water from the treatment unit 4 and waste water not taken in by the take-in device 5. Is discharged to sewage or the like.

In the above configuration, during normal kitchen drainage without using the disposer 2, the switching valve 3 is switched to the intake device 5 after the previous use of the disposer. Is continuously processed in a state where is stored in the processing unit 4. A part of the garbage such as vegetable waste flows into the garbage input section of the disposer 2 and accumulates.

On the other hand, when using the disposer, the user puts garbage into the disposer 2 connected to the sink 1. The input garbage is stored together with the garbage such as vegetable waste already stored in the garbage input section of the disposer 2.

In the following, a case of a general disposer other than the automatic water supply type will be described. The user opens the faucet of the sink 1 and switches on the disposer 2. When the control circuit including a microcomputer (not shown) receives the switch-on of the disposer 2, the switching valve 3 is switched to the processing unit 4 side, and then the disposer 2 is operated. Thereby, the garbage crushed material flows into the processing unit 4 via the switching valve 3 together with the water flowing from the sink 1.

When the user turns off the switch, the disposer 2 is stopped, and after a predetermined time, the switching valve 3 is switched to the intake device 5 to return to the initial state.

FIG. 2 is a diagram showing a specific example of the structure of the above-mentioned disposer wastewater treatment system. The take-in device 5 includes a tank 51 having a predetermined capacity and a transfer device (in this case, an air lift pump) 5.
2 is shown.

The processing section 4 includes a flow control tank 41, a solid-liquid separator 42, a processing tank 43 for processing the liquid separated by the solid-liquid separator 42, and sediment generated in the processing tank 43. Separation tank 44, a coagulant input device 45 for inputting a coagulant generally used to clean the supernatant, and a compost (composting) device for treating the solids separated by the solid-liquid separation device 42 46, air lift pumps 47 and 48 used for transfer between tanks and the like.

The solid-liquid separation device 42 may be, for example, a device for filtering with a mesh.

The treatment tank 43 is for treating organic matter with aerobic microorganisms such as a well-known activated sludge method, contact aeration method, and a carrier fluidized bed, and is aerated by a blower pump 431 and a diffuser 432. Is stirring. FIG. 2 shows an example of the treatment tank 43 using a carrier fluidized bed in which a carrier 433 in which aerobic microorganisms inhabit flows in the water to be treated.

FIG. 2 shows a tank 5 constituting the intake device 5.
An example is shown in which the air is transferred from No. 1 to a flow control tank 41 constituting the processing unit 4 by an air lift pump 52.

The air lift pump is a pump of the principle that air is blown underwater into a pipe inserted into water, and water and solids are lifted and transferred by the rising force of the air. In FIG. 2, each air lift pump 47, 4
8, 52 are abbreviated by white arrows, but are composed of an air lift pipe and a blower pump, and the blower pump can be shared by switching using a multi-way valve or the like.

When the above-mentioned ordinary kitchen wastewater flows into the tank 51 and is stored in the tank 51, the air lift pump 52 is set so as to transport the wastewater at a constant interval such as once every 30 minutes for a predetermined time. It is poured into the adjustment tank 41.
When the amount of water larger than the intake capacity flows into the tank 51, it flows out from the overflow port 511 of the tank 51 to the sewage discharge pipe 6.

A configuration is also possible in which the water level in the tank 51 can be detected by a water level sensor.
By controlling the operation time of the air lift pump 52 according to the water level, a predetermined amount of water can be supplied to the processing unit 4 (flow rate adjustment tank 4).
It becomes possible to take in to 1).

On the other hand, when the above-mentioned disposer is used, the switching valve (three-way valve) 3 is switched to the processing section 4 side, and the solids and liquid obtained by pulverizing the garbage are passed through the processing section 4 via the pipe line 31. 4 flows into the flow control tank 41.

The mixture of the solid and the liquid pumped by the air lift pump 47 from the bottom of the flow rate adjusting tank 41 is introduced into the solid separating device 42 to separate the solid and the liquid. Liquid is in processing tank 4
3 and the solid is charged into the composting device 46.

The liquid reduces organic components by water treatment with the aerobic microorganisms described above. Simultaneously generated sludge is settled and separated in a sedimentation / separation tank 44 which overflows and flows into the treatment tank 43, and the supernatant (treated water) of the sedimentation / separation tank 44 is passed through the drainage pipe 7 to the sewage discharge pipe 6.
And drain into the sewer. In addition, a partition plate 441 is provided above the sedimentation separation tank 44 to prevent the treated water containing sludge from flowing into the sewage from the drain pipe 7 even if the treated water containing sludge flows from the treatment tank 43 when the tank is full. Have been.

The settled sludge removed in the settling tank 44 is returned to the flow control tank 41 by the air lift pump 48. The returned sludge is sent to the solid-liquid separation device 42 by the air lift pump 47 together with the garbage crushed by the disposer 2 to be separated as a solid, and is processed by the compost device 46.

The solids transferred to the compost device 46 containing the wood chips (microbial carriers) are decomposed by microorganisms attached to the wood chips, composted, and collected as fertilizer.

According to the above configuration, since a part of the kitchen wastewater is taken in, the load on the processing unit 4 is reduced as compared with the case of processing the whole wastewater, the size of the processing unit 4 can be reduced, and a household consuming a large amount of water can be used. However, stabilization of the capacity of the processing unit 4 can be easily realized, and installation in an existing house becomes easy. In addition, although the processing unit 4 is slightly larger than that without an intake device that only processes wastewater when the disposer is used, the overall drainage water quality is clean and within the limits due to the capacity of the sewage treatment plant. The area that can be used in is expanded.

Further, by using the tank 51 and the transfer device (air lift pump 52) as the intake device 5, a large amount of kitchen wastewater does not need to be taken in, so that more stable wastewater treatment can be performed.

Further, since the portion having a high concentration of organic matter stored in the bottom of the tank 51 is sent to the treatment section (flow rate adjusting tank 41), the quality of the drainage water can be further improved.

FIG. 3 is a structural view showing a main part of another embodiment of the present invention, and the same reference numerals as those in the above-mentioned embodiment indicate the same or corresponding parts.

In the present embodiment, a diversion weir 50 having diversion slits 501 and 502 having an area corresponding to the diversion ratio is provided as a diversion device in a pipe line 32 through which kitchen waste water from the switching valve 3 flows. A certain ratio is taken into the tank 51 by the diversion weir 50, and a part thereof is taken into the flow rate adjusting tank 41 by the air lift pump 52 as in the above-described embodiment. That is, the capture device 5 of the present embodiment
Is composed of a diversion weir 50, a tank 51, and an air lift pump 52. The other wastewater divided by the diversion weir 50 flows into the sewage discharge pipe 6 of the embodiment.

As described above, by combining the embodiment shown in FIG. 2 with the flow dividing device (diversion weir 50), it is possible to handle only a predetermined amount of water, and the capacity of the tank 51 can be reduced. it can.

It is also possible to separate kitchen wastewater only by the diversion weir 50 and take in a predetermined ratio into the processing unit 4 (flow rate adjusting tank 41). In this case, the configuration is greatly simplified. Become.

In the above embodiment, the wastewater taken in by the take-in device 5 is put into the flow control tank 41 of the processing section 4.
It is also conceivable to put it in the processing tank 43.

[0040]

As described above, according to the present invention, the disposer, the processing section for treating the wastewater of the disposer, the switching valve for switching the pipe line so that the wastewater when the disposer is used flows to the processing section, and the use of the disposer, By providing a take-in device that takes in part of wastewater other than at the time, into the treatment unit, a small and stable wastewater treatment can be realized, installation in an existing house becomes easy, and there is a limitation due to the capacity of the sewage treatment plant. The area that can be used in the area also expands.

In addition, the above-mentioned intake device can be realized with a simple configuration by configuring the intake device as a diversion device that diverts wastewater other than when the disposer is used at a predetermined ratio and takes one of the wastewater into the processing section. .

Further, the intake device is constituted by a tank having a predetermined capacity for storing wastewater other than when the disposer is used, and a transfer device for transferring a part of the wastewater stored in the tank to the processing section. In addition, since it is not necessary to take in a large amount of kitchen wastewater, more stable wastewater treatment can be performed.

Further, the intake device is combined with the above-mentioned combination, that is, a flow dividing device that divides waste water except when the disposer is used at a predetermined ratio, a tank having a predetermined capacity for storing one waste water from the flow dividing device, and By configuring the transfer device to transfer a part of the wastewater stored in the tank to the processing unit, the size of the tank for the intake device can be further reduced.

Further, the transfer device transfers the portion having a high concentration of organic matter stored in the bottom of the tank to the processing section, so that the quality of the drainage water can be further improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration of a disposer wastewater treatment system according to the present invention.

FIG. 2 is a diagram showing a specific configuration example of the disposer wastewater treatment system.

FIG. 3 is a configuration diagram showing a main part of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sink 2 Disposer 3 Switching valve (three-way valve) 4 Processing part 5 Intake device 6 Sewage discharge pipe 7 Drain pipe 41 Flow rate adjustment tank 42 Solid-liquid separation device 43 Processing tank 44 Precipitation separation tank 46 Compost device 47,48 Air lift pump 50 Dividing device (diverting weir) 51 Tank 52 Transfer device (air lift pump)

 ──────────────────────────────────────────────────の Continued on the front page (72) Keiichi Fujimoto 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Jun Yoshida 2-5-2 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. F term (reference) 4D003 AA08 BA02 CA01 CA02 CA04 CA10 DA01 DA07 DA09 DA10 DA19 FA06 4D004 AA03 AC02 BA04 CA04 CA18 CB04 CB13 4D027 AB14 4D028 AC01 BC18 BC19 BC22 BC24 BC26 BC28 BD01 BD06 BD10 BD12

Claims (5)

[Claims] 1. A disposer, a treatment unit for treating wastewater from a disposer, a switching valve for switching a pipe line to flow wastewater when the disposer is used to the treatment unit, and a part of the wastewater when the disposer is not used A disposer wastewater treatment system, comprising: a take-in device for taking into a section. 2. The disposer according to claim 1, wherein the intake device is constituted by a diversion device that diverts wastewater other than when the disposer is used at a predetermined ratio and takes one of the diversion water into the processing unit. Wastewater treatment system. 3. The apparatus according to claim 1, wherein the intake device includes a tank having a predetermined capacity for storing drainage other than when the disposer is used, and a transfer device for transferring a part of the wastewater stored in the tank to the processing unit. The disposer wastewater treatment system according to claim 1, wherein: 4. A diversion device for diverting the wastewater at a predetermined ratio except when the disposer is used, a tank having a predetermined capacity for storing one drainage from the diversion device,
2. The disposer wastewater treatment system according to claim 1, further comprising a transport device that transports a part of the wastewater stored in the tank to the processing unit. 5. The disposer wastewater treatment system according to claim 3, wherein the transport device transports a portion having a high concentration of organic matter stored in a bottom portion of the tank to the processing unit.