JP2002172383A - Apparatus for treating supernatant water in septic tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recover condensed water generated when supernatant water in a septic tank is discharged to the atmosphere as steam, thereby enabling the condensed water to be recycled or discharged. SOLUTION: This apparatus for treating supernatant water in a septic tank comprises a water-to-be-treated storing tank 4, a pump 5 with a motor for introducing the water-to-be-treated 2 to the storage tank, a conveying pump 18 with a motor for supplying the water-to-be-treated 2 to a spray nozzle 9, the spray nozzle 9 for spraying the water-to-be-treated into a evaporator 10, the evaporator 10 equipped with an electric heater 15, a control means 19 for operating or stopping the pump 5 with the motor, the conveying pump 18 with the motor, and the electric heater 15, based on water level signals detected by a water level sensor 7, a condensed drain receiving vessel 13 for receiving condensed drain dropped from the evaporator 10, and a condensed water receiving tank 14 for receiving condensed water condensed in a steam passage 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for heating a supernatant water of a septic tank and releasing the water as steam into the atmosphere. At that time, a relatively clean condensed water condensed in a steam passage is collected and reused, or The present invention relates to an apparatus for treating purified water from a septic tank that can be discharged.

[0002]

2. Description of the Related Art In areas where public sewerage facilities are not fully equipped, clean water from a septic tank that collects kitchen drainage, wash bath drainage, laundry drainage, and toilet drainage that occurs in daily life is as follows: In principle, self-processing is required, and it is necessary to install a processing device in each site to process it. As this treatment device, there is usually a sprinkling filter device based on the activated sludge method using microorganisms, and the treatment is performed using this device, and the treated water is allowed to permeate the ground around the treatment device. Is common.

[0003] However, in such a sprinkling filter apparatus using microorganisms, if the treatment is continued for a long period of time, the treatment capacity gradually decreases due to clogging of the filter medium and accumulation of sludge. As a result, the quality of the treated water deteriorates and contaminates the groundwater, the accumulated sludge becomes anaerobic, causing odors, and the penetration of the treated water into the ground Can be suppressed by clogging, and if there is a similar sprinkling filter device nearby, the level of groundwater will rise and the permeation to the ground will be suppressed. come.

[0004] When the quality of the treated water deteriorates as described above, the clogging of the filter medium of the sprinkling filter device is washed with fresh water or the accumulated sludge is removed. However, there is a problem that it is difficult to collect the cleaned material because it is a work in a narrow place, and it takes time for the treatment effect by the microorganism after cleaning to take time. Also, if the treated water permeates the ground inadequately, it will be necessary to install a new trickling filter at another place on the premises, which will increase the maintenance and management costs. Has become.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned disadvantages of the prior art, and uses the supernatant water of a septic tank as a water to be treated without subjecting the microorganisms to wastewater treatment. The device has a simple structure and structure that can collect and reuse or discharge relatively clean condensed water that condenses and drips in the steam path when discharging. It is an object of the present invention to provide an apparatus for treating a purified water of a septic tank whose method is easy.

[0006]

Means for Solving the Problems One object of the present invention is to provide a treated water introducing means for taking the supernatant water of a septic tank as treated water and introducing the treated water into a treated water storage tank, and a treated water for storing the treated water. A water storage tank that is provided with a water level sensor for detecting a plurality of water levels, a water supply unit that feeds the water to be processed from the water storage tank to the spray nozzle, A spray nozzle for spraying water into the evaporating tube, an evaporating tube for evaporating the sprayed water to be treated, the evaporating tube having heating means, and the introduction of the water to be treated based on a water level signal from the water level sensor. Control means for controlling the operation or stop operation of the means and the water supply means, and control of the operation or stop operation of the heating means, and when discharging water vapor from the evaporation pipe to the atmosphere, Dripping from the edge with evaporation residue Purification tank clear water treatment comprising: a condensed drain receiving tank for receiving condensed drain; and a condensed water receiving tank for receiving condensed water condensed in the water vapor passage when the water vapor is discharged from the evaporating tube to the atmosphere. Device.

[0007] A second aspect of the present invention is the apparatus for treating a purified water of a septic tank according to the first aspect of the present invention, wherein any one of an electric heater, an oil burner and a gas burner is employed as the heating means.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention employs a septic tank supernatant water as the water to be treated, heats it, sterilizes it and releases it to the atmosphere as steam, and at the same time condenses in a steam passage when it is released. Relatively clean condensed water is collected and reused as middle tap water, or discharged to a gutter or the like.

That is, the present invention basically provides a treated water introducing means, a treated water storage tank provided with a water level sensor, a water supply means for sending treated water to a spray nozzle described later, a heating means and a spray nozzle. And a control means for controlling the operation or stop operation of the to-be-treated water introducing means, the water sending means and the heating means, a condensed drain receiving tank, and a purification tank supernatant water comprising a condensed water receiving tank. Processing device.

[0010] The water to be treated is the supernatant water of a septic tank in which all or a part of kitchen drainage, bathroom sink drainage, laundry drainage and toilet drainage generated in daily life is collected and treated. Can be.

The treated water introducing means may be of any configuration as long as it can introduce treated water from the purification tank into the treated water storage tank. For example, it may be a pouring type having a gradient or a power type using a pump. In the case of a power type using a pump, for example, a system including an introduction pump, a motor for driving the introduction pump, a connection pipe, and a supernatant water sensor for detecting the level of the supernatant water in the septic tank can be employed. . Here, the supernatant water sensor sends a water level signal to a control means, which will be described later, so that the introduction pump operates only when the supernatant water level is above a preset position in the septic tank. Controls the operation of the motor that drives the introduction pump. This can prevent idle running of the water introduction means.

The water to be treated storage tank is a tank for storing the water to be treated, and has three levels of an upper limit water level A, a lower limit water level B, and a super lower limit water level C with respect to a change in the level of the water to be treated in the tank. A water level sensor for detecting a water level and providing the control means with the water level signal is provided. The water level of the water to be treated in the tank is raised and lowered between an upper limit water level A and a lower limit water level B detected by the water level sensor.

The water level sensor may be of any type as long as it can detect each of the upper limit water level A, the lower limit water level B, and the super lower limit water level C of the water to be treated in the water to be treated storage tank. A sensor may be used. For example, a float type water level sensor or a water level sensor arranged at the bottom and sensed by gravity or pressure may be used as long as it is accurate and easy to maintain.

The upper limit water level A is the upper limit water level at which the water to be treated is introduced from the septic tank, is also the upper limit water level at which the operation of the heating means is started, and the upper limit water level is reached after a certain period of time has elapsed after reaching this water level. It is also the water level at which water starts to be supplied to the spray nozzle. That is, when the water level sensor detects that the level of the water to be treated has reached the upper limit water level A,
The water level signal is input to the control means, and based on the control signal output from the control means, the treated water introduction means is stopped and the introduction of the treated water into the treated water storage tank is stopped. On the other hand, the heating operation of the heating means is started, the heating of the evaporating tube is started, and after a lapse of a certain time from the start of heating the evaporating tube, the water sending means operates to send water to the spray nozzle of the water to be treated. Be started.

The lower limit water level B is a point at which the operation of the water-to-be-treated is started when the water-to-be-treated water in the water-to-be-treated storage tank is reached in order to maintain the water level above this level. The set water level. That is, when the water level sensor detects that the water level of the water to be treated has reached the lower limit water level B,
The water level signal is input to the control means, and based on the control signal output from the control means, the water-to-be-treated introduction means operates to replenish the water-to-be-treated water storage tank. .

When the water to be treated is replenished and the water level sensor detects that the water level in the water to be treated storage tank has reached the upper limit water level A, the water level signal is inputted to the control means as described above,
Based on this, the treated water introducing means is stopped by the control signal output from the control means, whereby the introduction of the treated water into the treated water storage tank is stopped. Further, when the water level sensor detects that the upper limit water level A has been reached, the heating operation of the evaporating tube of the heating means is started as described above, and the water is supplied after a lapse of a fixed time from the start of heating the evaporating tube. The means operates to start water supply to the spray nozzle of the water to be treated. In addition, when it is detected that the upper limit water level A has been reached, if heating of the evaporating tube and water supply to the spray nozzle of the water to be treated have been continued,
The control means does not issue a control signal to start heating or water supply to the heating means and the water supply means.

When the water level of the water to be treated in the water to be treated water storage tank does not drop below this ultralower limit water level C, the water to be treated is sent to the spray nozzle when the water level reaches this level. It is a water level set at a point for stopping and stopping the operation of the heating means. That is, if the supernatant water is not sufficiently accumulated in the septic tank even when the lower limit water level B is reached, the water to be treated is not introduced, so that the level of the water to be treated in the treated water storage tank is further lowered. When the water level sensor detects that the water has reached the super lower limit water level C, the water level signal is input to the control means, and based on this, the operation of the water supply means is stopped by the control signal output from the control means. As a result, the supply of the water to be treated is stopped, and the heating operation of the heating means in the evaporating tube is also stopped. This is also a safety measure for the operation of the apparatus for treating the supernatant water of the septic tank according to the present invention.

[0018] The water supply means is a means for supplying the water to be treated to the spray nozzle from the water to be treated storage tank, and any means capable of supplying the water to be treated to the spray nozzle at a predetermined pressure. Such a thing may be used. For example, a water pump, a motor that drives the water pump, and a connection pipe can be used.

The spray nozzle is not limited to a specific structure, as long as it can spray received water to be treated into the evaporating tube along the axis thereof. For example, a nozzle generally used when spraying a liquid can be employed. The point is that the water to be treated can be sent into the evaporating tube in the form of fine particles. It is appropriate that the amount of spraying is such that almost all can be evaporated in the evaporator tube, and this amount is calculated in consideration of the temperature at that time, the temperature of the water to be treated, the temperature of the evaporator tube, etc. Or it can be determined by experiment.

The heating means may be of any type as long as it can heat the entire evaporating tube. For example, an oil burner, a gas burner, an electric heater, or the like can be freely used. When an electric heater is employed, it is appropriate that the electric heater is wound around the outside of the evaporating tube so that the temperature of the evaporating tube can be heated to about 300 to 500 ° C. Of course, other configurations and temperatures may be used.

The evaporating pipe is a tubular body (cylindrical body) capable of evaporating water to be treated sprayed from one end of the evaporating tube inside the evaporating pipe, and an end capable of discharging steam as steam from the other end. Any release member may be used. For example, a stainless steel tubular body (tubular body) that is resistant to corrosion is placed horizontally, and fins are attached to its inner wall along the length direction to increase the surface area. A material that is easily evaporated is suitable.

The control means mainly receives and calculates each of the water level signals based on the upper limit water level A, the lower limit water level B and the ultra-lower limit water level C detected by a water level sensor disposed in the treated water storage tank. Depending on the control signal
It controls operations such as operation or stop of the water introduction means, operation or stop of the water supply means, and operation or stop of the heating means. The basic details of the control operation are as follows: the upper limit water level A, the lower limit water level B detected by the water level sensor.
And the lower limit water level C is as described above. Of course, various other control operations can be performed as needed.

The condensed drain receiving tank is a tank for receiving condensed drain dripping from the end of the evaporating tube together with the evaporation residue when evaporating the water to be treated in the evaporating tube and discharging the water vapor to the atmosphere. This condensed drain is water containing a relatively large amount of dirt components such as solids in the water to be treated, and is suitably returned to the septic tank for reprocessing.

The condensed water receiving tank is a tank for receiving condensed water condensed in the steam passage when evaporating the water to be treated in the evaporating pipe and discharging the water vapor to the atmosphere. Since the condensed water is relatively clean water having no smell and having a weak smell, it can be used as middle tap water as it is as washing water for toilets, watering plants and flowers, and washing water for roads. Can be reused. Also, it can be freely discharged into the side groove or the like.

Next, the operation of the apparatus for treating the supernatant water of a septic tank according to the present invention will be described. First, the treated water introducing means is operated to introduce treated water from the purification tank into the treated water storage tank. In this process, when the water level sensor detects a preset upper limit water level A, a water level signal to that effect is input to the control means, and based on this, a control signal is output from the control means, whereby the processing target The water introduction means is stopped, and at the same time, the heating means starts heating the evaporating tube. On the other hand, after a lapse of a predetermined time from the heating start time, a control signal for starting the operation of the water supply means is further output from the control means,
As a result, the water supply means operates and the water to be treated is sent to the spray nozzle.

At the spray nozzle, the received water to be treated is continuously sprayed into the evaporating tube, evaporates in the heated evaporating tube, becomes steam, and is discharged into the atmosphere from the other end of the evaporating tube. Will be done. Here, the spray amount is, as described above,
Although fine adjustment can be set by calculation or experiment, the fine adjustment is performed by visually checking the amount of condensed drain dripping from the end of the evaporating tube, and adjusting the feed amount of the water supply means to such an extent that it is dripped. This adjustment, once set, requires little readjustment during ongoing driving operation.

The condensed drain is suitably received in the condensed drain receiving tank, returned to the purification tank, and reprocessed.

When releasing water vapor into the atmosphere,
In the steam passage, steam condenses into condensed water. As described above, since this is relatively clean water,
This is received in the condensed water receiving tank and is used as it is as middle tap water for reuse. In some cases, the water is discharged to a gutter or the like.

The water is continuously sprayed by the spray nozzle, the water is evaporated by the evaporating pipe, the water level of the water to be treated changes, and the water level sensor detects that the water level has dropped to the lower limit water level B. When it reaches, a water level signal to that effect is output,
Based on this, a control signal is output from the control means. The to-be-treated water introduction means is controlled by the control signal and starts the introduction operation, so that the to-be-treated water is again introduced from the purification tank into the to-be-treated water storage tank.

The water to be treated is continuously introduced from the septic tank into the water to be treated storage tank.
Is reached, a water level signal to that effect is input to the control means, and a control signal for stopping the water-to-be-treated is output from the control means. The introduction operation of the introduction means is stopped. Also,
As described above, when the upper limit water level A is detected, a control signal is output from the control means to start the heating operation of the heating means in the evaporating tube, and after a lapse of a predetermined time from the heating start time. A control signal is to be output to start water supply to the spray nozzle of the water to be treated. In this case, as described above, the heating of the evaporating tube and the water supply to the spray nozzle of the water to be treated are performed. Since the control is continued, these control signals are not output.

On the other hand, when the water level of the treated water storage tank reaches the lower limit water level B, the amount of supernatant water of the purification tank is small, and the treated water is introduced into the treated water storage tank. When the water level does not come, the water level in the water tank to be treated further decreases and reaches the ultra-lower limit water level C, which is detected by the water level sensor. When the super lower limit water level C is detected, a water level signal to that effect is input to the control means, and based on this, a control signal for stopping the water supply means and a heating operation of the heating means are transmitted from the control means. A control signal to stop is output. In this way, the water supply operation of the water supply means to the spray nozzle is stopped, and the heating operation of the heating means is stopped, and the operation of the treatment device for the purified water in the septic tank is completely stopped. As a result, idle operation of the processing apparatus is prevented.

[0032]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory diagram showing an embodiment of a treatment apparatus for treating supernatant water from a septic tank.

First, as shown in FIG. 1, an apparatus for treating supernatant water from a septic tank was constructed. Septic tank supernatant water 1 to be treated water 2
As a device for treating this, a septic tank 3 and a treated water storage tank 4 were installed in parallel and embedded in the ground. Each of the purification tank 3 and the to-be-treated water storage tank 4 was configured such that its upper part was exposed to the ground.

The septic tank 3 is provided with a pipe for introducing domestic wastewater. Between the septic tank 3 and the treated water storage tank 4, a pump with a motor 5 as a means for introducing treated water and both pumps are provided. A connection pipe is provided for communication between the tanks.
A supernatant water sensor 6 for detecting a water level D at the lower end of the pipe located just above the lower end of the pumping section, that is, at a suitable position from which only water can be taken out. Further, a water level sensor 7 for detecting each of the following water levels according to the weight of the water storage tank 4 is provided at the bottom of the water to be treated storage tank 4. The water level sensor 7 is configured to output a water level signal indicating each of the upper limit water level A, the lower limit water level B, and the ultra-lower limit water level C in the treated water storage tank 4.

As shown in FIG. 1, the upper limit water level A indicates the upper limit of the water 2 to be treated in the treated water storage tank 4, and the lower limit water level B is, in principle, the lower limit at which the water level should not be lowered. Is shown. The super lower limit water level C is lower than the lower limit water level B,
Exceptionally indicates the lowest water level allowed.

On the other hand, a treatment apparatus main body 8 for treating the water to be treated 2 is installed above the ground, and a spray nozzle 9
The evaporating tube 10 is provided with an evaporating tube 10 for evaporating the water 2 to be treated, and a steam path 11 and a steam path roof 12 for discharging the evaporated steam to the atmosphere. Needless to say, the steam passage 11 and the steam passage roof 12 are located in front of the opening of the evaporator tube 10, and the steam passage roof 12 opens the upper opening of the steam passage 11 only at the side. Cover the condition.

A condensed drain receiving tank 13 for receiving condensed drain dripping from the open end of the evaporating pipe 10 together with the evaporation residue when evaporating the water to be treated 2 is disposed at the middle of the main body 8 in the vertical direction. did. Further, a condensed water receiving tank 14 for receiving condensed water condensed in the water vapor passage 11 when the water vapor is released into the atmosphere through the water vapor passage 11 is disposed below the processing device main body 8.

The evaporating tube 10 has an inner diameter of 75 mm.
A stainless steel tubular body having a thickness of 5 mm and a length of 700 mm was adopted, a spray nozzle 9 was attached to the base end, and the other end was opened. An electric heater 15 was wound around the evaporating tube 10 as a heating means. Further, a large number of fins 16 are provided on the inner wall surface of the evaporating tube 10 along the length direction to increase the surface area and facilitate the evaporation of the water 2 to be treated.

The condensed drain received in the condensed drain receiving tank 13 is connected to a pipe and returns to the purification tank 3 under natural flow so that it can be reprocessed in the purification tank 3. A pipe for taking out water and a valve 17 are provided below the water so that the water can be reused or discharged.

Further, the treated water storage tank 4 and the treatment apparatus main body 8
A water supply pump 18 with a motor and a connection pipe are provided as a water supply means between them, so that the water 2 to be treated can be supplied to the spray nozzle 9.

This processing apparatus detects the upper limit water level A, the lower limit water level B and the ultra-lower limit water level C by the water level sensor 7 and inputs a water level signal indicating these water levels to the control means 19. Outputs a control signal based on these water level signals, thereby operating or stopping the pump 5 with the motor and the water pump 18 with the motor.
Or a control operation such as start or stop of the heating operation of the electric heater 15. The supernatant water sensor 6
As a result, it is detected that the level of the supernatant water in the septic tank 3 has fallen below a predetermined level, and when this is input to the control means 19, a control signal is output from the control means 19 based on this and the motor Control is performed so that the pumping operation of the water pump 5 is not performed.

After being prepared in this manner, kitchen waste water, wash bath waste water, laundry waste water and toilet waste water generated in the daily life of a family of five are led to the wastewater treatment tank 3, and the wastewater is further fed to the wastewater treatment tank 3. The clear water 1 was introduced into the to-be-treated water storage tank 4, and the operation of the apparatus for treating the clear water of the septic tank of this embodiment was started.

The introduction of the to-be-treated water 2 into the to-be-treated water storage tank 4 is carried out by operating the pump 5 with a motor. The pump with pump 5 is provided with the supernatant water sensor 6.
However, the water level sensor 7 detects that the water level of the treated water storage tank 4 has reached the upper limit water level A until it detects that the water level of the septic tank 3 has reached the pipe lower end water level D, or as described later. Until this is detected, the pumping operation is continuously performed.

In this way, the pumping operation of the motor-equipped water pump 5 is performed.
However, when detecting that the water level of the treated water storage tank 4 has reached the upper limit water level A, a water level signal to that effect is input to the control means 19, and based on this, a control signal is sent from the control means 19 based on this. The output is stopped, and the operation of the motor-equipped pump 5 is stopped, and the heating operation of the electric heater 15 is started.

Thus, the introduction of the to-be-treated water 2 from the purification tank 3 to the to-be-treated water storage tank 4 is stopped, and the heating operation for the evaporating pipe 10 is started. Further, after a lapse of a predetermined time set from the start of heating of the electric heater 15, in this embodiment, after a lapse of 30 seconds, a control signal is further output from the control means 19, whereby the motor-equipped water pump 18 starts the water supply operation, and the water 2 to be treated in the treated water storage tank 4 is sent to the spray nozzle 9.

In the spray nozzle 9, the received water to be treated is continuously sprayed into the evaporating pipe 10,
0, it is heated and evaporated, becomes steam, and is discharged from the other end to the steam path 11, and is released into the atmosphere through the steam path. The spray amount at the spray nozzle 9 is adjusted by an adjusting valve arranged at the rear end. This can be performed while visually checking the amount of condensed drain dripping from the front end of the evaporating tube 10. This may be performed at the start of the operation.

The condensed drain dripping from the opening at the front end of the evaporating tube 10 is received by the condensed drain receiving tank 13 and returned to the purification tank 3 under natural flow to be reprocessed.

As described above, when water vapor is released into the atmosphere, a part of the water vapor is condensed in the water vapor passage 11 to become condensed water, which flows down. The condensed water is received by the condensed water receiving tank 14 and reused as it is as tap water. Alternatively, it can be discharged to a gutter or the like. Reuse or discharge is performed through a pipe connected to a part of the condensed water receiving tank 14. A hose or the like can be connected to this pipe, and the valve 17 can be opened to guide it to the outside.

The water is continuously sprayed by the spray nozzle 9, evaporated by the evaporating pipe 10, and the water level of the treated water storage tank 4 is lowered. The water level sensor 7 detects that the water level is lowered to the lower limit water level B. Then, a water level signal to that effect is output, and a control signal is output from the control means 19 based on this. The pump 5 with a motor is controlled by the control signal, starts pumping operation again, and the water 2 to be treated is again introduced from the purification tank 3 into the storage tank 4. Of course, as mentioned above,
The precondition is that the supernatant water sensor 6 has not detected that the water level in the septic tank 3 has reached the pipe bottom water level D.

When the water to be treated 2 is continuously introduced from the water purification tank 3 into the water to be treated storage tank 4 and the water level sensor 7 detects that the water level has reached the upper limit water level A again, A water level signal to that effect is also input to the control means 19, and a control signal for stopping the water pump 5 is output from the control means 19, and the pumping operation of the water to be treated is stopped.

In this case, as described above, the heating operation of the electric heater 15 in the evaporating tube 10 is continued, and the supply of the water 2 to the spray nozzle 9 is also continued. Therefore, the control signal which is a heating operation start signal to the electric heater 15 and the water pump 1 with motor
The control signal which is the water supply operation start signal to the control unit 8
9 is not output.

On the other hand, when the water level of the treated water storage tank 4 has reached the lower limit water level B, the level of the supernatant water 1 of the septic tank 3 is lower than the lower end water level D of the pipe. When the to-be-treated water 2 is not introduced into the to-be-treated water storage tank 4, the water level of the to-be-treated water storage tank 4 further decreases,
When the water reaches the super lower limit water level C and this is detected by the water level sensor 7, a water level signal to that effect is input to the control means 19, and based on this, the control means 19 stops the motorized water supply pump 18. And a control signal for stopping the heating operation of the electric heater 15 is output.

In this way, the water supply operation of the water supply pump 18 with the motor to the spray nozzle 9 is stopped, and the heating operation of the electric heater 15 is stopped. All stops.

<Operational Status of the Example Apparatus> 1) The operation is started, and the water to be treated 2 is sprayed from the spray nozzle 9 into the evaporating pipe 10, and the steam rises to the steam path 11 after about 1 minute. Was confirmed, and the water was released into the atmosphere from the gap between the steam path 11 and the steam path roof 12. 2) Also, after about 3 minutes from the start of spraying of the water to be treated 2, the condensed water condensed in the steam path 11 drops into the condensed water receiving tank 14 and the treatment is being performed smoothly. It was confirmed that. 3) In this state, continuous operation was performed for one month, and observation was made. No abnormality was found, and it was confirmed that the processing was performed smoothly.

<Results of Reusing Condensed Water in Example Apparatus> 1) The condensed water received in the condensed water receiving tank 13 was almost transparent, had no stain, and had a weak sewage odor. 2) This water was used as flush water for flushing toilet flushes for one month, but no dirt was attached to the toilet bowl, and it was found that it was no different from when tap water was used. 3) When this water was used for one month for watering plants and flowers, no change was observed in their growth.

<Consideration of the Example> As can be seen from the operation status of the example apparatus and the result of the reuse of the condensed water, the treatment apparatus for the purified water of the septic tank according to the present invention is an excellent treatment apparatus for treating the purified water of the purified tank. It turns out that it is.

[0057]

According to the apparatus for treating supernatant water of a septic tank according to the present invention, the treatment facility itself is compact and does not emit noise, so that the installation place is not limited. Also, since the structure and configuration of the processing device are simple,
Driving operation is also easy and unmanned driving can be continued,
Since there is no clogging, there is no need for operation management and maintenance.

Since the treatment effect is a physical treatment, the treatment effect is not influenced by the weather and the temperature as compared with the microorganism treatment, and a good treatment result can be obtained stably throughout the year.

Further, the condensed water recovered from the steam path by the treatment is sanitary because it is sterilized by heating, and it is water free of dirt and has only a weak smell. it can.

If the above-mentioned condensed water is used as middle tap water and reused as it is for washing water for toilets, watering plants and flowers, washing water for roads and the like as it is regularly used throughout the year. This results in significant savings.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an apparatus for treating purified water from a septic tank according to one embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Septic tank supernatant water 2 To-be-processed water 3 Purification tank 4 To-be-processed water storage tank 5 Pump with motor 6 Supernatant water sensor 7 Water level sensor 8 Processing device main body 9 Spray nozzle 10 Evaporation pipe 11 Steam path 12 Steam path roof 13 Condensation drain receiving tank 14 Condensed water receiving tank 15 Electric heater 16 Fin 17 Valve 18 Water pump with motor 19 Control means A Upper water level B Lower water level C Ultra lower water level D Pipe lower water level

Continued on the front page (72) Inventor Yuka Gunji 236 Aoyagi, Hokota-cho, Kashima-gun, Ibaraki F-term (reference) 4D034 AA26 BA03 CA19

Claims (2)

[Claims] 1. A treated water introducing means for taking the supernatant water of a septic tank as treated water and introducing the treated water into a treated water storage tank, and a treated water storage tank for storing the treated water. Treated water storage tank provided with a water level sensor for detecting water, water supply means for supplying treated water from the treated water storage tank to the spray nozzle, and a spray nozzle for spraying the received treated water into the evaporating pipe An evaporating pipe for evaporating the sprayed water to be treated, the evaporating pipe having a heating means for evaporating the to-be-treated water, and the means for introducing treated water and the water supply based on a water level signal from the water level sensor. Control means for controlling the operation or stop operation of the means, and control of the operation or stop operation of the heating means, and when discharging steam from the evaporation pipe to the atmosphere, the evaporation residue from the end of the evaporation pipe Condensed drain dripping with And a condensed water receiving tank for receiving condensed water condensed in the water vapor passage when the water vapor is discharged from the evaporating tube to the atmosphere. 2. The apparatus for treating purified water of a septic tank according to claim 1, wherein an electric heater, an oil burner or a gas burner is used as said heating means.