JP2000110733A - Control system for pump of storage facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a load for treating sewage at a pump plant or treatment plant. SOLUTION: A storage facility pump control system controls an operation of a recirculation pump and drain pump of a storage facility intermediately accompanied by a sewerage line. If it is judged that the stored water is not required to be treated, based on a volume of water 51 stored in the storage facility and water quality 52 of stored water, the drain pump is activated 11 to discharge the stored water into a river. If it is judged that the stored water is required to be treated, the recirculation pump is activated 12 to send the stored water back to a pump plant or treatment plant. If the volume of the stored water is judged to be equal to or less than a predetermined volume, water quality evaluation means 3 stops operation of the recirculation pump.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage facility pump control device for controlling the operation of a return pump and a drainage pump of a storage facility provided along a sewer main line, and more particularly to a storage capacity of a storage facility and storage water. The present invention relates to a storage facility pump control device that performs a pump operation in consideration of water quality or a sewage treatment load of a treatment plant.

[0002]

2. Description of the Related Art Conventionally, in a basin sewer system, wide-area efficient sewer operation has been attempted through a plurality of municipalities.

[0003] However, with recent rapid urbanization, the infiltration area of rainfall has decreased, and impervious components have flowed out to the water mains. Poor capacity, causing flood disaster. In addition, the amount of water supply from public sewers in each municipality to basin sewers is increasing, and the ability of mains to flow down is decreasing.

To solve this problem, for example, it is conceivable to replace the existing trunk line with a large-diameter trunk line. However, there are problems such as difficulty in securing a bypass route during the construction period and excessive cost.

On the other hand, in recent years, storage facilities such as large-diameter storage pipes that can be relatively easily added and storage facilities such as regulating ponds for temporary storage have recently been installed.

In this case, the rainwater stored in the storage facility at the time of rainfall is returned to a pumping station or a treatment plant by a return pump as sewage and treated at fine weather after the rain stops. The operation of the return pump is performed such that, after the rain stops, the pump is constantly operated until, for example, one pump runs out of storage capacity.

[0007]

However, in the operation method of the storage facility, the rainwater stored in the storage facility is returned to the pumping station or the treatment plant as sewage in fine weather. However, there is a problem that the inflow of sewage increases and the sewage treatment load increases.

[0008] In addition, during heavy rainfall, since there is a large amount of residual storage in the storage facility, it is not possible to store sufficient rainwater, and there is a problem that flooding occurs or the danger thereof increases.

For this reason, recently, the appearance of pump operation control for avoiding such a situation has been strongly desired.

[0010] It is an object of the present invention to provide a storage facility pump control device capable of reducing the load of sewage treatment at a pump station or a treatment station and preventing inundation due to heavy rain.

[0011]

According to a first aspect of the present invention, there is provided a storage device pump control device for controlling the operation of a return pump and a drainage pump of a storage device provided along a sewer main line. According to the present invention, if it is determined that the stored water is not of a quality requiring treatment based on the amount of the stored water stored in the storage facility and the quality of the stored water, the stored water is drained (discharged) to a river. When the drainage pump is started as described above and the stored water is judged to be of a quality that requires treatment, the return pump is started to return the stored water to the pumping station or treatment plant, and the stored water is further stored. A water quality determining means is provided for stopping the return pump when it is determined that the amount has become equal to or less than the predetermined amount.

[0012] Therefore, in the storage facility pump control device according to the first aspect of the present invention, for the stored water stored in the storage facility, the part that does not require treatment and the part that requires treatment are divided into drainage and return. By doing so, it is possible to drain the stored water without polluting the river, and it is not necessary to treat all the stored water, so it is possible to reduce the sewage treatment load of the pump station and the treatment plant .

[0013] According to the second aspect of the present invention, the first aspect is provided.
In the storage facility pump control device according to the invention of the invention, the current storage capacity of the storage water and the operation status by the water quality determination means (river drainage time, (Return time) is presented as storage facility guidance, and operation prediction means for presenting the long-term operation of the storage facility as storage facility operation guidance by predicting future conditions inside the storage facility such as changes in water quality is added. I have.

Therefore, in the storage equipment pump control device according to the second aspect of the present invention, the current storage amount of the stored water and the operation status (river drainage time and return time) are presented as storage equipment operation guidance, and the water quality changes. By presenting the long-term operation of the storage facility as storage facility operation guidance by predicting the situation inside the storage facility in the future, etc., it is possible to grasp the river drainage time and return time, which will be a reference for operation . In addition, since the future state of the storage facility such as a change in water quality can be predicted, the storage facility can be operated in consideration of long-term and effective operation.

Further, according to the third aspect of the present invention, when heavy rain is predicted on the basis of the amount of stored water stored in the storage facility and rainfall prediction information obtained from weather information and rainfall radar information, the stored water is stored. Activate the drain pump for emergency drainage (discharge) to the river, and start / stop the return pump to return the stored water to the pumping station or treatment plant within a predetermined time to prevent the deterioration of the stored water. An operation determination unit is provided.

Therefore, in the storage equipment pump control device according to the third aspect of the present invention, when heavy rain is predicted, the stored water is urgently drained (discharged) to the river, and within a predetermined time to prevent the stored water from decaying. By returning the stored water to the pumping station or the treatment plant, more rainwater can be stored during heavy rain, and flooding due to heavy rain can be avoided. In addition, decay of stored water can be prevented.

On the other hand, according to the invention of claim 4, the amount of sewage flowing into the pumping station or the treatment plant is determined based on the amount of stored water stored in the storage facility and the estimated amount of sewage flowing from the drainage zone to the sewer main line. A sewage smoothing plan is provided to make a sewage smoothing plan so that (sewage load) can be smoothed, and to start / stop the return pump based on the sewage smoothing plan.

Therefore, in the storage equipment pump control device according to the fourth aspect of the present invention, based on the sewage smoothing plan set so that the amount of sewage inflow (sewage load) to the pumping station and the treatment plant can be smoothed. Returning the stored water to the pumping station and the treatment plant can smooth the inflow of sewage (sewage load) to the pumping station and the treatment plant. This saves time and energy for driving.

According to the fifth aspect of the present invention, the fourth aspect is provided.
In the storage equipment pump control device according to the invention of the invention, the pump operation of the pumping station and the treatment plant based on the storage amount of the stored water stored in the storage equipment, the quality of the stored water, and the sewage smoothing plan by the sewage smoothing planning means A pump station for controlling the operation of the pump and the operation of the processing equipment, and a processing station control means are added.

Therefore, in the storage equipment pump control device according to the fifth aspect of the present invention, the pump operation of the pump station, the pump operation of the treatment station, and the operation of the treatment equipment are controlled based on the sewage smoothing plan. Pump operation, or the pump operation of the treatment plant and the operation of the processing equipment can be remotely and comprehensively performed.

Further, according to the present invention, when it is determined that the stored water is not of a quality requiring treatment based on the amount of the stored water stored in the storage facility and the quality of the stored water, the storage is performed. Activate a drain pump to drain (discharge) water into the river, and if it is determined that the stored water has the quality required for treatment, return pump to return the stored water to the pumping station or treatment plant Is activated, and further, when it is determined that the storage amount of the stored water has become equal to or less than the predetermined amount, the water quality determination means for stopping the return pump, the storage amount of the stored water stored in the storage facility, and weather information and rainfall radar. Based on the rainfall prediction information obtained from the information, when heavy rain is predicted, the drainage pump is started to drain the stored water to the river urgently (discharge),
In addition, operation determination means for starting / stopping a return pump so as to return the stored water to a pumping station or a treatment plant within a predetermined time in order to prevent decay of the stored water, and an amount of stored water stored in the storage facility. And a sewage smoothing plan based on the estimated amount of sewage flowing into the sewer main from the drainage zone so that the amount of sewage inflow (sewage load) to the pumping station and the treatment plant can be smoothed. Wastewater smoothing planning means for starting and stopping the return pump based on

Accordingly, the storage facility pump control device according to the sixth aspect of the present invention includes the water quality determination means, the operation determination means, and the sewage smoothing planning means, so that the above-described first, third, and third aspects are provided. The effect of the invention of claim 4 can be simultaneously achieved.

[0023]

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

(First Embodiment) FIG. 1 is a schematic configuration diagram showing an example of a storage facility pump control device according to the present embodiment.

In FIG. 1, a storage facility 21 is provided along the sewer main line via a bypass pipe.

The storage equipment 21 has a storage amount 51 of the stored water stored in the storage equipment 21 and a water quality 5 of the stored water.
2 is installed.

Further, the storage facility 21 includes a drain pump for discharging (discharging) the stored water to the river 24 and a return pump for returning the stored water to the pumping station and the sewage treatment plant 25. A pump 23 is provided.

On the other hand, the storage facility pump control means 1 comprises a water quality judgment means 3 and an operation prediction means 4.

The water quality judging means 3 uses the storage amount 51 of the stored water stored in the storage facility 21, the water quality 52 of the stored water, and the data stored in the storage facility operation standard 2 as input data, and based on these, If it is determined that the stored water is not the water quality that requires treatment, the drain pump activation 11 is performed on the water supply pump 23 so as to drain (discharge) the stored water to the river, and the stored water has the water quality that requires treatment. When it is determined that there is, the return pump is started to return the stored water to the pumping station or the sewage treatment plant 25, and when it is determined that the storage amount 51 of the stored water has become equal to or less than a predetermined amount (for example, zero), The return pump stop 12 is performed on the water supply pump 23.

The operation prediction means 4 uses the storage amount 51 of the stored water stored in the storage facility 21, the water quality 52 of the stored water, and the data stored in the storage facility operation standard 2 as input data, and based on these, The current storage amount 51 of the stored water and the operation status (river drainage time and return time) by the water quality determination means 3 are presented as the storage facility guidance 13, and the future status of the storage facility 21 such as a change in water quality is predicted. The long-term operation of storage facility 21 to storage facility operation guidance 13
Presented as

Next, the operation of the storage facility pump control device of the present embodiment configured as described above will be described.

In FIG. 1, the water quality determining means 3 stores the storage amount 51 measured by the sensor 22 installed in the storage facility 21 and the stored water quality 52 as input data and is stored in the storage facility operation standard 2. For example, if it is determined based on the river drainage water quality standard that the stored water stored in the storage facility 21 is not the water quality that requires treatment, that is, the water quality that can be drained from the river (for example, the water turbidity is less than 10 mg / L),
The drainage pump activation 11 is performed on the water supply pump 23 of the storage facility 21 to drain (discharge) the stored water stored in the storage facility 21 to the river 24.

In the water quality judging means 3, the storage equipment 21
Is the water quality that requires treatment, that is, the water quality is not water that can be drained from rivers (for example, water turbidity of 10
mg / L or more), the drain pump stop 11 is performed on the water pump 23 of the storage facility 21 and the return pump activation 12 is performed on the water pump 23 of the storage facility 21, and stored in the storage facility 21. The stored water is returned to the pumping station and the sewage treatment plant 25.

Further, in the water quality judging means 3, the storage equipment 2
When the storage amount 51 measured by the sensor 22 installed at 1 becomes zero, the return pump stop 12 is performed on the water supply pump 23 of the storage facility 21.

In the above description, the criterion for water quality determination includes biochemical oxygen demand (BOD) and the amount of E. coli. The water quality determination means 3 combines these water quality determination criteria and, for example, It is also possible to judge the water quality by OR.

On the other hand, the operation prediction means 4 presents the current storage amount 51 and the operation status as the storage facility operation guidance 13.

That is, for example, the present pump displacement q
From m ³ / h and the storage amount Qm ³ , n = Q / q (1) is calculated, and the fact that river drainage can be completed in n hours is presented as the storage facility operation guidance 13.

Similarly, the return time to the pump station and the sewage treatment plant 25 is also presented as the storage facility operation guidance 13.

Further, changes in the water quality, for example, the sedimentation of suspended matter in the stored water, and the decrease in the water volume from the operation state of the pump are predicted, so that the future state of the storage facility 21 can be estimated. Presented as operation guidance 13.

That is, the change in water quality, for example, the sedimentation of suspended matter in the stored water, and the degree of sedimentation of contaminants (particles) are determined using, for example, the following equation (2) which is a sedimentation equation for solids in liquid. The situation in the future storage facility 21 is predicted, and the above (1)
By combining the calculation with the formula, the long-term operation of the storage facility 21 is presented as the storage facility operation guidance 13.

Ν = {g · (ρ _s −ρ) · d ² } / 18 μ (2) ν: particle sedimentation velocity (cm / s) g: gravitational acceleration (cm / s ² ) ρ _s : particle Density (g / cm ³ ) ρ: Water density (g / cm ³ ) d: Particle diameter (cm) μ: Viscosity coefficient of water As described above, in the storage equipment pump control device of the present embodiment, the storage equipment For the stored water stored in 21, the portion that does not require treatment and the portion that requires treatment are separated into drainage and return, that is, only the stored water that requires treatment is pumped or treated for sewage treatment. The stored water that is returned to the place 25 and that does not require treatment in terms of water quality is drained (discharged) to the river 24, so that the stored water such as rainwater stored can be drained without polluting the river 24. At the same time, it is not necessary to treat all the stored water, so the pump station and sewage treatment plant 25 The water treatment load can be reduced.

Further, the present storage amount 51 of the stored water and the operation status (river drainage time and return time) are presented as the storage facility operation guidance 13, and the future status of the storage facility 21 such as a change in water quality is predicted. Since the long-term operation of the storage facility 21 is presented as the storage facility operation guidance 13, the drainage time of the river and the return time can be ascertained, which is useful for operation. In addition, since the future state of the storage facility 21 such as a change in water quality can be predicted, it is possible to operate the storage facility 21 considering long-term and effective operation.

(Second Embodiment) FIG. 2 is a schematic configuration diagram showing an example of a storage facility pump control device according to the present embodiment, and the same elements as those in FIG. Are omitted, and only different portions will be described here.

In FIG. 2, the storage facility pump control means 1
Is composed of an operation determination means 5, a sewage smoothing planning means 6, a pump station and a treatment plant control means 7.

The operation determining means 5 inputs the storage amount 51 of the stored water stored in the storage facility 21, the rainfall prediction information 53 obtained from weather information and rainfall radar information, and the data stored in the storage facility operation standard 2. When heavy rain is predicted based on the data, the drain pump start 11 is set to the water pump 2 so that the stored water is urgently drained (discharged) to the river 24.
3 to the water pump 23 so as to return the stored water to the pumping station or the sewage treatment plant 25 within a predetermined time (for example, within 24 hours) in order to prevent the stored water from decaying. Do it for.

The sewage smoothing planning means 6 includes a storage amount 51 of the stored water stored in the storage facility 21, a predicted sewage amount 54 flowing from the drainage zone to the sewer main line, and a storage facility operation standard 2.
Is used as input data, and based on these data, a sewage smoothing plan is created so that the amount of sewage inflow (sewage load) to the pump station and the sewage treatment plant 25 can be smoothed. Start / stop the return pump based on
Is performed on the water supply pump 23.

The pumping station and treatment plant control means 7 are provided with a storage amount 51 of the stored water stored in the storage facility 21 and a water quality 5 of the stored water.
2. Based on the sewage smoothing plan by the sewage smoothing planning means 6, the pump operation of the pump station, the pump operation of the sewage treatment plant 25, and the operation of the treatment equipment are controlled.

Next, the operation of the storage facility pump control device of the present embodiment configured as described above will be described.

In FIG. 2, for example, when heavy rain is predicted, as an operation of the storage facility 21, an operation of urgently draining the water stored in the storage facility 21 in preparation for flooding due to heavy rain can be considered.

In this case, the operation determining means 5 includes a storage amount 51 of the stored water stored in the storage facility 21, rainfall prediction information 53 obtained from weather information such as a weather forecast and rainfall radar information, a storage facility operation standard, and the like. When the heavy rain is predicted based on the data stored in the storage device 2 as input data, the drain pump activation 11 for emergency drainage is performed to the water supply pump 23 of the storage device 21, and the storage stored in the storage device 21 is performed. Emergency drainage (discharge) of water to river 24.

The operation judging means 5 sets the start / stop of the return pump 12 to the water pump 23 of the storage facility 21 so that the return pump is returned within 24 hours, for example, in order to prevent the stored water from being spoiled.
And returns the stored water stored in the storage facility 21 to the pumping station and the sewage treatment plant 25.

On the other hand, in the sewage smoothing planning means 6, the storage amount 51 of the stored water stored in the storage facility 21, the predicted sewage amount 54 flowing from the drainage zone to the sewer main line, and the storage facility operation standard 2 are stored. Of wastewater into the pumping station and the sewage treatment plant 25 using the collected data as input data, a sewage smoothing plan is set up so that the return pump can be started up based on the sewage smoothing plan. The stop 12 is performed on the water supply pump 23 of the storage facility 21, and the stored water stored in the storage facility 21 is returned to the pump station or the sewage treatment plant 25.

In this case, as a planning means of the sewage smoothing plan, for example, a planning means using an integer programming method (Japanese Patent Application No. 7-222).
It is also possible to use a method using a genetic algorithm (GA) or the like.

In the pumping station and processing station control means 7,
Based on the sewage smoothing plan planned by the sewage smoothing plan means 6 using the storage amount 51 of the stored water stored in the storage facility 21 and the water quality 52 of the stored water as input data, for example, FIG.
The pump operation at a plurality of pumping stations, the pumping operation at a processing station, and the operation of processing equipment are directly controlled.

As a result, systematic operation and control can be performed even for a wide area sewerage system as shown in FIG.

As described above, in the storage facility pump control device of the present embodiment, when heavy rain is predicted, the stored water is urgently drained (discharged) to the river 24, and a predetermined time is set in order to prevent the stored water from decaying. Pumping water and sewage treatment plant within 25
In consideration of the operation of the storage facility 21,
Since the water is returned to the pumping station or the sewage treatment plant 25 or drained (discharged) to the river 24, more rainwater can be stored during heavy rain, so that flooding due to heavy rain can be avoided. . Further, it becomes possible to prevent the decay of the stored water.

Further, the stored water is returned to the pumping station or the sewage treatment plant 25 based on the sewage smoothing plan established so that the amount of sewage inflow (sewage load) to the pumping station or the sewage treatment plant 25 can be smoothed. That is, the pump is returned to the pumping station or the sewage treatment plant 25 in consideration of the pump capacity and the pump well level of the return pumping station or the sewage treatment plant 25, or the amount of sewage inflow from the drainage zone to the sewer main line. Therefore, the amount of inflow of sewage (sewage load) into the pumping station and the sewage treatment plant 25 can be smoothed, so that stable pumping station and treatment plant operation can be performed.
It is possible to improve the quality of treated water, and save labor and energy for driving.

Further, since the pump operation of the pump station, the pump operation of the treatment plant, and the operation of the treatment equipment are controlled based on the sewage smoothing plan, the pump operation of the pump plant or the pump operation of the treatment plant is controlled. The operation of the processing equipment can be performed remotely and comprehensively. Thereby, systematic operation and control can be performed over a wide area.

(Other Embodiments) The water quality determination means 3 and the operation prediction means 4 in the first embodiment described above.
It is also possible to realize a storage facility pump control device by appropriately combining the operation determination means 5, the sewage smoothing planning means 6, the pumping station, and the treatment plant control means 7 in the second embodiment. .

[0060]

As described above, according to the storage facility pump control device of the present invention, the amount of the water that does not need to be treated and the amount that needs to be treated are different from the stored water such as rainwater stored in the storage facility. Since the wastewater is separated into drainage and return, it is possible to prevent an increase in the amount of wastewater flowing into a pumping station or a treatment plant. In addition, it is possible to prevent rivers and the like from becoming dirty.

Further, since the amount of inflow of sewage can be smoothed by controlling the amount of return, stable sewage treatment can be performed.

In addition, it is expected that storage facilities that can contribute more to the prevention of inundation during heavy rains can be operated.

Further, the operation of the pumping station or the operation of the treatment station can be performed comprehensively and comprehensively.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a first embodiment of a storage facility pump control device according to the present invention.

FIG. 2 is a schematic configuration diagram showing a storage facility pump control device according to a second embodiment of the present invention.

FIG. 3 is a schematic diagram showing an example of a wide area sewerage system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Storage equipment pump control means, 3 ... Water quality judgment means, 4 ... Operation prediction means, 5 ... Operation judgment means, 6 ... Sewage smoothing planning means, 7 ... Pump station, treatment plant control means, 21 ... Storage equipment, 22 ... Sensor, 23 ... water pump, 24 ... river, 25 ... sewage treatment plant, 51 ... storage quantity, 52 ... storage water quality, 53 ... rainfall forecast information, 54 ... projected wastewater quantity.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masajiro Nakata 1-1-1, Shibaura, Minato-ku, Tokyo Inside the Toshiba head office (72) Inventor Masahiko Tsutsumi 1 Toshiba-cho, Fuchu-shi, Tokyo Toshiba Corporation F-term in Fuchu factory (reference) 2D063 DC06 3H020 AA05 AA07 BA02 BA03 BA07 BA18 CA00 DA01 DA29 EA12 EA16 3H045 AA06 AA09 AA16 AA23 AA31 BA03 BA07 BA24 BA28 CA00 CA29 CA30 DA01 DA42 DA47 EA04 EA38 EA48

Claims (6)

[Claims] 1. A storage facility pump control device for controlling the operation of a return pump and a drainage pump of a storage facility provided in the middle of a sewer main line, comprising: a storage amount of stored water stored in the storage facility; If it is determined based on the water quality that the stored water is not the water quality requiring treatment, the stored water is drained (discharged) to a river.
Start the drainage pump so that the stored water is of a quality that requires treatment, start the return pump to return the stored water to a pumping station or treatment plant, A storage equipment pump control device, comprising: water quality determination means for stopping the return pump when it is determined that the storage amount of the stored water has become equal to or less than a predetermined amount. 2. The storage facility pump control device according to claim 1, wherein, based on a storage quantity of the storage water stored in the storage facility and a quality of the storage water, a current storage quantity of the storage water and Presents the operation status (river drainage time and return time) by means of water quality determination as storage facility guidance, and predicts future conditions inside the storage facility such as changes in water quality, and conducts long-term operation of the storage facility. A storage facility pump control device characterized by adding operation prediction means to present the guidance as guidance. 3. A storage facility pump control device for controlling the operation of a return pump and a drainage pump of the storage facility provided along the sewer main line, comprising: a storage amount of stored water stored in the storage facility; Based on the rainfall prediction information obtained from the rainfall radar information, when heavy rain is predicted, the drainage pump is started so as to urgently discharge (discharge) the stored water to a river, and to prevent the stored water from decomposing. A storage facility pump control device, comprising: operation determination means for starting and stopping the return pump so as to return the stored water to a pump station or a treatment station within a predetermined time. 4. A storage facility pump control device for controlling the operation of a return pump and a drainage pump of a storage facility provided in the middle of a sewer main line, comprising: a storage amount of stored water stored in the storage facility; Based on the predicted amount of sewage flowing into the sewer main line, a sewage smoothing plan is set up so that the amount of sewage inflow (sewage load) to a pumping station or a treatment plant can be smoothed. A storage facility pump control device comprising sewage smoothing planning means for starting and stopping a return pump. 5. The storage facility pump control device according to claim 4, wherein the amount of stored water stored in the storage facility, the quality of the stored water, and a sewage smoothing plan by the sewage smoothing planning means are set. A pump control device for controlling a pump operation of a pump station, a pump operation of a treatment station, and an operation of a treatment facility, and a storage facility pump control device, further comprising a treatment station control means. 6. A storage facility pump control device for controlling the operation of a return pump and a drainage pump of a storage facility provided in the middle of a sewer main line, comprising: a storage amount of stored water stored in the storage facility; If it is determined based on the water quality that the stored water is not the water quality requiring treatment, the stored water is drained (discharged) to a river.
Start the drainage pump so that the stored water is of a quality that requires treatment, start the return pump to return the stored water to a pumping station or treatment plant, When it is determined that the storage amount of the stored water has become a predetermined amount or less, water quality determination means to stop the return pump, the storage amount of the stored water stored in the storage facility, and weather information and rainfall radar information Based on the obtained rainfall prediction information, when heavy rain is predicted, the drainage pump is started so as to urgently drain (discharge) the stored water to a river, and within a predetermined time for preventing the stored water from decaying. Operation determination means for starting and stopping the return pump so as to return the stored water to a pumping station or a processing station; and a storage amount of the stored water stored in the storage facility, and flowing into the sewer main line from a drainage area. Based on the measured amount of sewage, make a sewage smoothing plan so that the amount of sewage inflow (sewage load) to the pumping station and treatment plant can be smoothed, and start / stop the return pump based on the sewage smoothing plan. A storage facility pump control device, comprising: