JP2001025749A - Garbage treating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a garbage treating system capable of being miniaturized by controlling its treating part in accordance with a condition of a garbage crushing means. SOLUTION: A control means (controller 5) is provided to control a treating part 4 in accordance with the condition of a crushing means (disposer 2). Transportation of a supernatant by an air-lift pump 48 and that of a precipitate by an air-lift pump 47 are stopped during the operation of the crushing means (disposer 2) and until specified time has elapsed after the crushing means was stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art A processing system of this type is disclosed, for example, in Japanese Patent Application Laid-Open No. H10-15524 (B09B 3/00).
There is one described in.

[0003] This is a disposer for crushing garbage,
In a kitchen waste treatment system including a secondary treatment device that treats water to be treated including crushed garbage crushed by a disposer so as to have a specified water quality, whether the operation of the secondary treatment device is normally performed. Detecting means for detecting whether or not
Execution means for executing a predetermined process so as to eliminate the result that the detection means has detected that the detection means is negative when the detection result of the detection means is negative. is there.

[0004] Specifically, when the detection result of the detection means is negative, that is, when the operation of the processing apparatus is not performed normally, the water supply means of the disposer is stopped or the crushing operation of the disposer is stopped. Or that the series of operations of the processing device are not performed normally. The detection of whether or not the operation of the processing apparatus is performed normally is performed by detecting the water level of the flow rate adjustment tank or the aeration tank or the quality of the wastewater from the processing apparatus. Detection of the quality of the wastewater is considered to be effective, for example, when the wastewater is not properly treated due to a failure of the aeration device.

[0005]

However, in the above-described conventional apparatus, the disposer is controlled in accordance with the state of the processing apparatus, but the drainage processing is controlled regardless of the use state of the disposer. Therefore, it is necessary to provide a sufficient capacity of the processing apparatus so that a problem due to liquid turbulence or the like does not occur even when the disposer drainage flows in at any time. Therefore, a large installation area is required to increase the size of the apparatus.

In addition, since the failure of the processing apparatus is detected by detecting the quality of the wastewater from the processing apparatus, it is possible to prevent the disposer wastewater from being discharged without being sufficiently treated. Did not.

Therefore, the present invention has been made to solve such a problem, and the size of the garbage can be reduced by controlling the processing section in accordance with the state of the crushing means for crushing the garbage. The main purpose is to provide a processing system.

It is another object of the present invention to provide a garbage disposal system capable of preventing wastewater from being unsatisfactorily treated and discharged due to a failure.

[0009]

In order to achieve the above objects, the present invention provides a crushing means for crushing garbage, a processing section for processing crushed material crushed by the crushing means, It is characterized by comprising a detecting means for detecting a state of the crushing means, and a control means for controlling the processing section according to the state of the crushing means detected by the detecting means.

The processing section has a flow control tank into which wastewater containing garbage pulverized material flows, and a transfer device for transferring the supernatant liquid to a processing tank at a subsequent stage.
During the operation of the pulverizing means detected by the detecting means and until a predetermined time elapses after the operation is stopped, the supernatant liquid transfer processing of the transfer device is stopped.

The processing section has a flow control tank into which wastewater containing garbage pulverized material flows, and a transfer device for transferring the sediment to a subsequent solid-liquid separation device. During the operation of the pulverizing means detected by the detecting means and until a predetermined time elapses after the operation is stopped, the sediment transfer processing of the transfer device is stopped.

Further, there is provided processing section state detecting means for detecting the state of the processing section, wherein the control means controls the crushing means in accordance with the state of the processing section detected by the processing section state detecting means. It is characterized by the following.

Further, the processing section has a flow rate adjusting tank into which drainage containing garbage pulverized material flows, and a transfer device for transferring the supernatant liquid to a processing tank at a subsequent stage.
When a failure of the processing tank is detected by the processing section state detecting means, the operation of the crushing means and the supernatant liquid transfer processing of the transfer device are stopped.

[0014]

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 which is an embodiment of a garbage disposal system according to the present invention.

The disposer wastewater treatment system includes a disposer 2 connected to a sink 11 of a sink 1, an operation display unit 3 for a user to operate the system and check a state of the system, and a pipe for flowing wastewater from the disposer 2. Road 2
A processing unit 4 connected to the processing unit 4 for processing wastewater containing crushed material of the disposer, and connected to the disposer 2, the operation display unit 3 and the processing unit 4 via control lines 52, 53 and 54 to control the system. It is composed of a controller 5 and the like.

FIG. 2 is a block diagram showing the above control system in more detail. The controller 5 includes a microcomputer (hereinafter abbreviated as “microcomputer”) 51 and its power supply 5.
2 etc. are built in. The microcomputer 51 includes the operation display unit 3
And control lines 531 and 53 for display output and switch input
2 and connected to the disposer 2 by control lines 521 and 522 for control and state detection, and to the processing unit 4 by control lines 541 and 542 for control and state detection.

FIG. 3 is a diagram showing a specific example of the configuration of the disposer wastewater treatment system.

The processing section 4 is provided with a flow control tank 41 through which waste water containing garbage crushed when the disposer is used flows through a switching valve (three-way valve) 40, and separates a solid component and a liquid component of the sediment. A solid-liquid separator 42, a processing tank 43 for processing the supernatant liquid from the flow rate adjusting tank 41, a sedimentation separation tank 44 for sedimenting the sludge generated in the processing tank 43, and a method commonly used for cleaning the supernatant. A coagulant input device 45 for inputting a coagulant, and a composting (composting) device 4 for treating the solids separated by the solid-liquid separation device 42
6. Air lift pump 47 used for transportation between tanks, etc.
48, 49, etc.

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 conveyed by the rising force of the air. In FIG. 3, each air lift pump 47, 4
8, 49 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.

A water level sensor 411 of, for example, a capacitance type is attached to the flow rate adjusting tank 41, and the water level detected by this is sent to the controller 5, and the water level is low (for example, below the water level B in the figure). ), The control is performed such that the operation of the disposer 2 is permitted, but not permitted when the water level is high (for example, the water level A or higher in the figure). At the same time, the operation display unit 3 displays that the disposer 2 can be used or cannot be used. An air lift pump 47 for pumping the sediment into the solid-liquid separator 42 and an air lift pump 48 for pumping the supernatant liquid into the processing tank 43 are inserted into the flow control tank 41.

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 substances by aerobic microorganisms such as a well-known activated sludge method, a contact aeration method, and a carrier fluidized bed, and is aerated by a blower pump 431 and an air diffuser 432. Is stirring. FIG. 3 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. Further, a pressure gauge 434 for monitoring a discharge pressure from the blower pump 431 and detecting a failure of the blower pump 431, a clogging of the air diffuser 432, and the like is attached to a discharge port of the blower pump 431. .

Normal kitchen wastewater other than when the disposer is used is discharged to the sewage discharge pipe 6 through a switching valve (three-way valve) 40.

On the other hand, when the disposer is used, the switching valve (three-way valve) 40 is switched to the flow regulating tank 41 side, and the solid and the crushed garbage are transferred to the pipe line 401.
Flows into the flow control tank 41 via the.

The mixture of the solid and the liquid pumped up by the air lift pump 47 from the bottom of the flow rate adjusting tank 41 is charged into the solid separating device 42 to separate the solid and the liquid. The liquid is returned to the flow control tank 41, and the solid is charged into the compost device 46.
The supernatant is sent to the processing tank 43 by an air lift pump 48.

In the treatment tank 43, organic components are reduced by the water treatment with the aerobic microorganisms described above. Simultaneously generated sludge is settled and separated in a sedimentation / separation tank 44 that overflows and flows into the treatment tank 43, and the supernatant (treated water) of the sedimentation / separation tank 44 is drained through the drainage pipe 7. And drain into the sewer. In addition, a partition plate 441 for preventing even if treated water containing sludge flows from the treatment tank 43 from the treatment tank 43 when the sedimentation separation tank 44 is full, is prevented from being drained to the sewage directly from the drain pipe 7. Is provided.

The settled sludge removed in the settling tank 44 is returned to the flow control tank 41 by the air lift pump 49. 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, separated as a solid, and 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.

Now, a series of operations of the entire system will be described.

The user confirms that the disposer 2 can be used on the display of the operation display unit 3, puts garbage into the disposer 2, and turns on the operation switch of the operation display unit 3.

As a result, the switching valve 40 is switched, and the preparation for flowing the pulverized disposer into the processing section 4 (flow rate adjusting tank 41) is completed. After this switching, the operation of the disposer 2 starts, and the pulverized material flows into the flow rate adjusting tank 41. Thereafter, the settled sludge in the settling tank 44 is returned to the flow control tank 41 by the air lift pump 49.

After a lapse of about 30 minutes, solid components have separated and separated in the flow rate adjusting tank 41. First, the supernatant liquid is sent to the processing tank 43 by the air lift pump 48, and thereafter,
The precipitated solid is pumped to the solid-liquid separator 42 by an air lift pump 47. Then, the settled sludge in the settling tank 44 is returned.

In the solid-liquid separation device 42, the solid and the liquid are separated, the liquid is returned to the flow control tank 41, and the solid component is put into the compost device 46.

These series of operations are repeated every 30 minutes.
The disposer pulverized matter stored in the flow rate adjusting tank 41 is gradually processed.

The composting device 46 contains a wood chip which is a microbial carrier for accelerating the decomposition of solids (organic substances) as described above. The body is decorated.

In the treatment tank 43, the organic components contained in the supernatant sent from the flow rate adjustment tank 41 are decomposed by microorganisms and sent to the sedimentation separation tank 44 by natural flow. A porous carrier 433 that forms an environment where microorganisms can easily live is placed in the treatment tank 43.
The air blown by the air diffuser 432 flows into the air diffuser 432. The organic matter decomposed in the treatment tank 43 is converted into sludge, settled in the sedimentation separation tank 44, and returned by the air lift pump 49 to the flow control tank 4.
After being sent to 1, it is collected together with the solid (crushed garbage) by the solid-liquid separation device 42, further decomposed by the compost device 46, and composted.

Next, referring to a flowchart shown in FIG. 4, a disposer (hereinafter abbreviated as DP) 2 and a processing unit 4
The operation according to the invention of the present application will be described with reference to FIG.

When the control routine shown in FIG. 4 is executed by the controller 5 (microcomputer 51), the controller 5 first detects the state of the processing unit 4. Specifically, the water level of the flow rate adjustment tank 41 detected by the water level sensor 411, the discharge pressure of the blower pump 431 detected by the pressure gauge 434, and the like are input (step S1).

Based on the above detection result, it is checked whether or not the processing unit 4 is in a state where it can receive the DP drainage (step S2). In the present embodiment, if the flow rate adjustment tank 41 is below the water level B shown in FIG. 3 and the discharge pressure of the blower pump 431 detected by the pressure gauge 434 is in a normal range,
Enable DP (YES in step S2 → step S)
3). Here, the fact that DP is available is displayed on the operation display unit 3, and an input from the start switch is received.

When the operation of the DP 2 is started, the process of transporting the supernatant and the sediment from the flow rate adjusting tank 41 of the processing section 4 is stopped (YES in step S4 → step S5). Then, it waits until the DP operation is completed (NO in step S6).
(Loop), and waits for a predetermined time (the required sedimentation separation time in the flow rate adjusting tank 41, 30 minutes in this case) from the end of the operation of the DP2 as a starting point (NO in step S7).
loop).

After the elapse of the predetermined time, the process of transporting the supernatant and the sediment from the flow rate adjusting tank 41 is restarted (step S8), and the process returns to the series of operations described above.

As described above, when the sedimentation separation effect cannot be obtained due to the disturbance of the liquid due to the inflow of the wastewater containing the disposer pulverized material, the supernatant is not conveyed, so that the next processing tank 43 S that is difficult to disassemble
It does not send S (floating pollutant) components and has no adverse effect. Also, in the process of transporting the sediment from the flow rate adjusting tank 41, the sediment is disturbed by the inflow of the pulverized disposer, so that if the transport is stopped, the efficiency of collecting the sediment can be increased. As described above, by performing the above-described control in accordance with the state of the disposer 2, it is not necessary to increase the volume of the flow rate adjusting tank 41, so that the system can be reduced in size and the installation area can be reduced. it can.

On the other hand, in step S2, the processing unit 4
If you determine that you are not ready to accept P drainage,
Disable DP (NO in step S2 → step S)
9). Here, the fact that DP cannot be used is displayed on the operation display unit 3 and the input of the start switch is not accepted.

Further, it is checked from the value of the pressure gauge 434 whether or not the aeration device (the blower pump 431 and the air diffuser 432) has failed (step S10). If the value of the pressure gauge 434 is not within the normal range, there is a high possibility that the blower pump 431 fails or the air diffuser 432 is clogged. Therefore, the transfer of the supernatant from the flow rate adjustment tank 41 to the processing tank 43 is stopped. (YES in step S10 → step S11).

As described above, in addition to the above-described transport stop control during the DP operation, when the processing unit 4 cannot accept the DP drainage, the DP cannot be used, thereby performing the drainage processing of the entire system without any trouble. be able to. In particular,
When the aeration device breaks down, the processing of the supernatant liquid to the processing tank 43 is stopped, so that the untreated wastewater is removed from the processing tank 43.
From the outside through the sedimentation separation tank 44 can be prevented.

In the above embodiment, the disposer 2 is used as the pulverizing means.
The present invention is also applicable to those using other crushing means such as a meat grinder.

[0048]

As described above, according to the present invention, control means for controlling the processing section in accordance with the state of the crushing means detected by the detecting means for detecting the state of the crushing means is provided. Since the processing unit is controlled according to the state of garbage, there is no need to provide a sufficient capacity in the tank volume so that problems due to liquid turbulence and the like do not occur even when crushed garbage flows in. The size of the waste disposal system can be reduced, and the installation area of the system can be reduced.

During the operation of the pulverizing means and until a predetermined time has elapsed after the operation has been stopped, the supernatant liquid transfer processing into the flow rate control tank into which the wastewater containing the garbage pulverized material flows in is stopped, whereby the liquid is disturbed. When the sedimentation separation effect is no longer obtained, the supernatant liquid is not transported, so that the SS component that is difficult to decompose is not sent to the subsequent processing tank,
It can prevent adverse effects.

Similarly, in the process of transporting the sediment from the flow control tank, the sediment is disturbed by the inflow of the crushed garbage, so that the sediment is transported during the operation of the crushing means and until a predetermined time elapses after the operation is stopped. Is stopped, the collection efficiency of the precipitate can be improved.

Further, in addition to the above control, by controlling the pulverizing means in accordance with the state of the processing section detected by the processing section state detecting means, the processing of the entire system can be performed without trouble. Become.

In particular, when a failure in the processing tank is detected,
By stopping the operation of the pulverizing means and the above-mentioned supernatant liquid transfer processing, it is possible to prevent untreated wastewater from flowing out.

[Brief description of the drawings]

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

FIG. 2 is a block diagram showing the control system in more detail.

FIG. 3 is a diagram showing a specific configuration example of the disposer wastewater treatment system.

FIG. 4 is a flowchart showing an operation according to the present invention in which a disposer and a processing unit are associated;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sink 2 Disposer 3 Operation display part 4 Processing part 5 Controller 6 Sewage discharge pipe 7 Drain pipe 40 Switching valve (three-way valve) 41 Flow control tank 42 Solid-liquid separation device 43 Processing tank 44 Precipitation separation tank 46 Compost device 47,48, 49 Air lift pump 51 Microcomputer 411 Water level sensor 431 Blower pump 432 Air diffuser 434 Pressure gauge

 ──────────────────────────────────────────────────の Continuing 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) 4D004 AA03 AC02 BA04 CA04 CA13 CA15 CA19 CB13 CB21 CB47 CC08 CC20 DA01 DA02 DA12 DA20 4D065 CA05 CC03 EA03 EA08 EB17 ED35 ED43 ED46

Claims (5)

[Claims] 1. A crushing means for crushing garbage, a processing unit for processing crushed material crushed by the crushing means, a detecting means for detecting a state of the crushing means, and a crushing detected by the detecting means A garbage disposal system, comprising: control means for controlling the processing section according to the state of the means. 2. The processing section has a flow rate adjusting tank into which wastewater containing garbage pulverized material flows, and a transfer device that transfers the supernatant liquid to a subsequent processing tank. During the operation of the crushing means detected by the detection means and until a predetermined time has elapsed after the operation is stopped,
2. The garbage disposal system according to claim 1, wherein the supernatant liquid transfer processing of the transfer device is stopped. 3. The processing unit includes a flow rate adjusting tank into which wastewater containing garbage pulverized material flows, and a transfer device that transfers the sediment to a subsequent solid-liquid separator. During the operation of the crushing means detected by the detection means and until a predetermined time has elapsed after the operation is stopped,
The garbage disposal system according to claim 1, wherein the sediment transport processing of the transport device is stopped. 4. A processing unit status detecting unit for detecting a state of the processing unit, wherein the control unit controls the crushing unit according to a state of the processing unit detected by the processing unit state detecting unit. Claims 1 to 3 characterized by the following:
A garbage disposal system according to any one of the above. 5. The processing section has a flow rate adjustment tank into which wastewater containing garbage pulverized material flows, and a transfer device that transfers the supernatant liquid to a processing tank at a subsequent stage. 5. The garbage processing system according to claim 4, wherein when the processing unit state detecting means detects a failure in the processing tank, the operation of the crushing means and the supernatant liquid transfer processing of the transfer device are stopped.