JPS596998A - Treatment of sludgy water in purifier tank, etc. and treatment of sludgy water by vehicle for returning filling water - Google Patents

Abstract

PURPOSE:To perform the withdrawal of sludgey water and filling of with a single vehicle, by providing said vehicle with a tank for the treatment of sludgy water, a tank for filtered water, a filter and a pressurizing-decompressing tank, and connecting a drain hose to the tank for the treatment of sludgy water and the tank for filtered water. CONSTITUTION:After the vehicle is let run to a position where a purifier tank or the like is existent, a hose 1 for sucking or draining water is drawn out from a hose reel 12 and inserted into sludgy water inside the purifier tank or the like. A tank 2 for the treatment of sludgy water is decompressed by a pressurizing-decompressing means 5, and switchgear cocks 10, 11, 13 are opened to suck sludgy water into the treating tank 2. Thereafter, predetermined amount of a liquid flocculant is sucked from a tank 6 for a liquid flocculant into the treating tank 2, to form flocks by a flocculating reaction. Thereafter, a tank 3 for filtered water is decompressed to drive a filter 4, while pressurizing the treating tank 2. The tank 3 for filtered water and the decompressing means 5 are then pressurized to drain the filtered water through the hose 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sludge water treatment method for septic tanks, etc. and a sludge water treatment method using a water-filling return vehicle, and it is possible to remove sludge water from a septic tank, etc. and fill it with water using a single vehicle. This paper relates to a new sludge water treatment method.

Conventionally, when treating sludge water from a septic tank, etc. for the purpose of managing the septic tank, etc., the sludge water from the septic tank, etc. is drawn out with a vacuum car, etc., and then the water is filled with household tap water, or another tank is filled with water. The water filling process was performed by transporting the water by car, which had some inconveniences, such as the labor required for the water filling process.

The present invention has been made in view of the above-mentioned points (1), and the present invention is a novel sludge system that makes it possible to remove and fill sludge water with a single vehicle, thereby facilitating the management of septic tanks, etc. A water treatment method is provided.

That is, the method of treating sludge water in a septic tank or the like and using a water-filling return vehicle of the present invention is a sludge water treatment method in which a vehicle is equipped with a suction/drainage hose and an agitation mechanism for stirring and mixing sludge water and a flocculant. A tank, a filtered water tank, a filtration device, and a pressurization and depressurization device that can independently pressurize and reduce the internal pressure of the sludge water treatment tank and the filtrate water tank are equipped, and the suction and drainage hoses are connected to the sludge water treatment tank. Sludge water using a purification 111 gin sludge water treatment and water filling return vehicle, which is connected to a tank and a first water tank, and a filtration device is connected between the sludge water treatment tank and the first water tank. In the treatment method, filtrate water is stored in advance in the above-mentioned 1 filtration tank,
After depressurizing the sludge water treatment tank with the pressurization and depressurization device and suctioning the sludge water from the septic tank, etc. into the sludge water treatment tank through the suction and drainage hose,
While pressurizing the filtrate tank and draining the filtrate in the filtrate tank in an amount equal to the amount of sludge water sucked into the sludge water treatment tank, the septic tank is filled with water through the suction and drainage hose. , the sludge water in the sludge water treatment tank is stirred and mixed with the flocculant by the stirring mechanism, and flocs (charge (-) held by the colloid of sludge in water and charge (+) held by the flocculating molecules are mixed in the sludge water treatment tank). The primary treated water in the sludge water treatment tank containing the flocs is neutralized and the sludge colloids are pulled together (cross-linking phenomenon) to form a spongy aggregate. Pressurize the processing tank,
The filtrate is pressurized by the pressure reducing device and sent to the filtration device for solid-liquid separation, and the separated filtrate water is evacuated by the pressure reduction device and the filtrate tank is depressurized to form one filtered water tank. It is characterized by suction and accommodation within the body.

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

First, to explain the sludge water treatment and water filling return vehicle for septic tanks etc. used in the method of the present invention, the drawing shows a piping system diagram of such a vehicle. A drainage hose, 2 a sludge water treatment tank equipped with a stirring mechanism 2 for stirring and mixing sludge water and a flocculant, 3 a filtered water tank, 4 a filtration device, and 5 the sludge water treatment tank 2 and filtered water. A pressurization/depressurization device 6 is a coagulation side plate tank that can independently pressurize or reduce the internal pressure of the tank 3, and these devices are installed in a vehicle (not shown).

The suction and drainage hose 1 is wound around a hose reel 12, and each pipe 3 has an opening/closing cock 13.
0 and the bottoms of the sludge water treatment tank 2 and the filtered water tank 3 via a pipe 31 having an opening/closing cock 14. In this case, the pipes 30 and 31 are not directly connected to the suction and drainage hose 1, and the pipe 30 is connected to the pipe 3.
2, and pipe 31 is connected to pipe 32 and pipe 33.
It is connected to the suction and drainage hose 1 via.

In addition, the sludge water treatment tank 2 and the filtered water tank 3 include:
Windows f and f are provided for checking the properties of the sludge water and filtrate water inside, respectively.

Further, the above-mentioned first filtration device 4 is composed of a horizontal rotary screen tube 4 for solid-liquid separation, and a filtration tank 1 disposed below the screen tube 4. The rotary screen cylinder 4 collects sludge water (primary treated water containing flocs obtained by coagulating sludge water from a septic tank or the like with a coagulant in the sludge water treatment tank 2 as described later) discharged from one end thereof. Solid-liquid separation is performed on the screen surface, and the sludge to be separated is discharged from the other end into sludge 111 (not shown) through a spiral blade (not shown) provided on the inner surface. Ru1
Overwater tank! There is no need for it to flow or drip inside.

Note that the rotary screen cylinder 4 has a configuration in which the other end is freely adjustable in order to smoothly carry out filtration on a slope. Therefore, 1 configured like this
The filtration device 4 is connected between the sludge water treatment tank 2 and the first filtration tank 3 via a pipe 34 having an on-off cock 15 and a pipe 35 having an on-off cock 16.

More specifically, the filtration device 4 has one end of the rotary screen tube 4 connected to the bottom of the sludge water treatment tank 2 via pipes 34, 33, 30, and a is connected to the top of the filter bottle 3 via pipes 36 and 35. Also, a pipe 3 having an opening/closing cock 15
4 is provided with 1q$34 of transparent water on at least a part of it.

The pressurization/depressurization device 5 is mainly composed of a vacuum pump 50, a four-way switching valve 51, a pressure regulating pulp 52, and the like. That is, four pipes 53, 54, 5 are connected to the four-way switching valve.
5. A vacuum pump 50 is connected between the other ends of the pipes 53 and 54, and the tip of the pipe 56 is branched to form a pipe 58 and a valve 58 each having an opening/closing cock 51. 59) with 60
A pipe 55 is connected to the upper part of the filtrate water tank 3 and the sludge water treatment tank 2 through a pipe 55, and a pressure regulating pulp 52 consisting of a three-way switching cock is connected to the tip of the pipe 55, and the pressure regulating pulp 52 is opened to the atmosphere. It is constructed by connecting a vibro 1 and a vibro 2 communicating with a sludge water treatment tank 2.

According to the above configuration, by switching the four-way switching valve 51 while the vacuum pump 50 is operating, when one of the pipes 55 and 56 is in a pressurized state, the other is in a depressurized state. I can do it. Therefore, under this condition, if you first operate the opening/closing cocks 5γ and 59,
Either the gravity of the sludge water treatment tank 2 and the r-permeable water treatment tank 3 or the internal pressure of both can be increased or decreased. Moreover, by adjusting the pressure regulating pulp 52 so that the pipes 55 and 62 communicate with each other, and closing the on-off cock 59 while opening the on-off cock 57 and switching the four-way switching valve 51, the sludge water treatment tank 2 One of the two overwater tanks 3 can be in a reduced pressure state, and the other can be in a pressurized state. That is,
According to the pressurization and depressurization device 5, the internal pressures of the sludge water treatment tank 2 and the filtrate water tank 3 can be pressurized and depressurized separately or simultaneously using one vacuum pump 50. Oka, in the above explanation, in order to make it easier to understand the functions of the pressurization and depressurization device 5, the four-way switching cock 51 and the opening/closing cock 5 are used.
The first order of operations is different from the actual operation order.

Further, according to the pressurizing and depressurizing device 5, by adjusting the pressure regulating pulp 52 and adjusting the degree of communication of the knob 55 to the /club 61 and the /club 62, υ,
The pressurization pressure and pressurization pressure of the sludge water treatment tank 2 can be adjusted. In particular, it is important to be able to adjust the pressurizing pressure, which makes it possible to forcefully feed the flocs from the sludge water treatment tank 2 to the first filtration device 4 without damaging the flocs, as will be described later. Please check the pressure adjustment.

52 can also be constructed using two three-way switching cocks (opening/closing cocks). Further, 63 is an oil separator, 64 is an air safety valve, and 65 is an air cleaner.

Further, the flocculant liquid tank 6 is connected to the sludge water treatment tank 2 via a pipe 3γ having a flow meter 17 and an opening/closing cock 18.
In this case, the flocculant liquid is transferred from the flocculant liquid tank 19 outside the vehicle using the pump 20 outside the vehicle, and is placed in the sludge water treatment tank 2 while being measured by the flow meter 11. To be able to supply a fixed amount (= none).

Further, γ is a pump provided between the suction and drainage hose 1 and the filtration device 4, so that the p-filtered water separated by the filtration device 4 can be directly discharged through the suction and drainage hose 1. To explain in more detail, the above-mentioned bongua, together with the opening/closing cock 21)
One end of the pipe 38 is connected to the suction and drainage hose 1, and the other end is connected to the filtrate water receiving tank l in the filtration device 4 via the pipe 36. Also 3
Reference numeral 9 denotes a gravity discharge port for discharging filtered water by gravity without using the pump γ, and in this case, it is provided between the pump I and the first filtration device 4 by branching the vibrator 36 and equipping it with an opening/closing cock 22. be.

In addition, numeral 23 in the drawing is an opening/closing cock for drain discharge.

By using the sludge water treatment and water filling return bundle constructed as described above, the sludge water treatment method of the present invention can be carried out as follows.

That is, in the basic embodiment of the present invention, first, after driving the vehicle to a location where a septic tank or the like is located, the suction and drainage hose 1 is pulled out from the hose reel 12 and inserted into the sludge water of the septic tank or the like. Then, the sludge water treatment tank 2 is brought into a depressurized state by the pressurization and depressurization device 5, and the opening/closing cock 10.11 is turned on.
Open ゜ and 13 and connect suction and drainage hose 1, pipe 32.3
Sludge water from a septic tank or the like is sucked and stored into the sludge water treatment tank 2 through the septic tank 2. And with this! II rear opening/closing cock 1
8 is opened and a predetermined amount of flocculant liquid is sucked and stored in the sludge water treatment tank 2 from the flocculant liquid tank 6 through the pipe 3T while being measured by the liquid meter 17. After a predetermined amount of sludge water and flocculant liquid are sucked and stored in the sludge water treatment tank 2 in this way, the stirring mechanism 2' is operated to cause the sludge water to undergo a flocculation reaction within the sludge water treatment tank 2 to form flocs. do.

Once the flocs are formed, the sludge water treatment tank 2 is pressurized by the pressurization/depressurization device 5, while the filtrate water tank 3 is pressurized.
is brought into a reduced pressure state, the filtration device 4 is operated, and the opening/closing cocks 13, 15 and 16 are opened. In this way, the primary treated water in the sludge water treatment tank 2 containing flocs is transferred to the pipes 30, 33. and 34 through the filtration device 4
It can be fed under pressure to a rotating screen tube in
The filtered water separated by the rotary screen tube 4' and flowing down or dripping into the filtered water receiving tank can be sucked and stored in the filtered water tank 3 via the pipes 36 and 35. In the process of pumping the primary treated water, the vibrator 3
By adjusting the pressure regulating valve 52 of the pressurizing and depressurizing device 5 while observing the properties of flocs passing through the transparent part 34' in 4, the pressurizing pressure of the sludge water treatment tank 2 can be adjusted to the above-mentioned level. Since the flocs can be adjusted as shown in FIG.

Next, the water tank 3 is pressurized by the pressure reducing device 5, and the opening/closing cocks 14, 11 and 10 are opened. In this way, the filtered water in the first filtration tank 3 can be drained to a septic tank or the like via the pipes 31, 33 and 32, and the suction/drainage hose 1.

In addition, in the above explanation and the following explanation, all opening/closing cocks other than the opening/closing cock that is open are closed. Further, the above basic implementation mode (2) is mainly used when adjusting the SV of a septic tank or the like.

By the way, in the basic embodiment described above, after the solid-liquid separation with the filtration device 4 is completed, the separated filtrate water is discharged to a septic tank or the like. However, in the filtration device 4, since the sludge is separated, the amount of sludge water sucked into the septic tank or the like does not match the amount of filtrate water discharged, and the amount of filtrate water discharged is insufficient. In order to eliminate this inconvenience, it is sufficient to suction and store filtered water (filling water) in the filtered water tank 3 in advance, and in this way, there will be no shortage of filtered water as described above. . That is, in the present invention, if the filtered water is stored in the filtered water tank 3 in advance in this way, even if the sludge water is treated according to the above embodiment, only one batch of water is discharged from the filtered water tank 3. There is no shortage of water, and the sludge water tank 2
Immediately after suction of sludge water into the filtrate tank 3, the filtrate tank 3 is pressurized using a pressurization/decompression device, and the filtrate water previously stored in the filtrate tank 3 is transferred to the pipes 31, 33 and 32, and It can be immediately drained via the drain hose 1.

In addition, unlike the embodiments described above, if the entire amount of sludge water from the septic tank, etc. needs to be extracted for cleaning the septic tank, etc.,
Sludge water from a septic tank or the like is sucked and stored not only in the sludge water treatment tank 2 but also in the filtered water tank 3. The suction and storage of sludge water into the sludge water treatment tank 2 is as described above.
In order to suck and store sludge water, the filtrate water tank 3 is brought into a depressurized state by the pressurization and depressurization device 5, and the opening/closing cock 10.
11 and 14 are opened, and in this way, sludge water from a septic tank or the like can be sucked into the filtered water tank 3 via the suction/drainage hose 1 and the pipes 32, 33, and 31.

After the sludge water is sucked and stored in the sludge water treatment tank 2 and the filtered water tank 3, the sludge water in the sludge water treatment tank 2 is first treated according to the basic implementation a described above, and then the sludge water is stored in the filtrate water receiving tank l in the filtration device 4. 6P water receiving tank to get filtered water!
In this case, sludge water is stored in the IP filtered water tank 3, so it cannot be discharged according to the basic embodiment described above, and the opening/closing cock 21 is opened and the pump γ is operated to 36 and 38 and directly through the suction and drainage hose 1. Incidentally, when pumping by the pump T is not necessary, the opening/closing cock 22 is opened and the filtered water is discharged from the gravity discharge port 39. After treating and discharging the sludge water in the sludge water treatment tank 2, the sludge water in the filtrate water tank 3 is transferred to the sludge water treatment tank 2, and the sludge water is transferred to the FA device in the basic embodiment as described above. 4 or from the suction/drainage hose 1 via the pump T. In this case, the sludge water is transferred from the filtrate water tank 3 to the sludge water treatment tank 2 by using the pressurization and decompression device 5 to bring the sludge water treatment tank 2 into a depressurized state, while the filtrate water tank 3 is brought into a pressurized state. This can be done via the pipes 31, 33 and 30 by opening the opening/closing cocks 14 and 13.

As shown above, according to the sludge water treatment method of the present invention, it is possible to drain sludge water Py, υ and fill it with water by using only one vehicle, thereby making it possible to manage septic tanks, etc. Effects that can be easily realized are produced.

[Brief explanation of the drawing]

Figure m1 shows a piping system diagram of a sludge water treatment such as a septic tank and a water-filling return vehicle used in the present invention. 1. Suction and drainage hose 2...Sludge water treatment tank 2.
・Agitator I11 3..1 Perhydration tank 4...Filtration device 5.Pressurization and depressurization device Patent applicant Tokyu Vehicle Manufacturing Co., Ltd. 5

Claims (1)

[Claims] The vehicle is equipped with a suction and drainage hose, a sludge water treatment tank equipped with an internal stirring mechanism for stirring and mixing sludge water and coagulation, a filtered water tank, an r-filtration device, and an internal pressure between the sludge water treatment tank and the filtered water tank. Pressurization that can be pressurized and depressurized separately,
A sludge tank such as a septic tank, which is equipped with a pressure reducing device, the suction and drainage hoses are connected to a sludge water treatment tank and a filtered water tank, and a filtration device is connected between the sludge water treatment tank and the filtered water tank. A sludge water treatment method using a water treatment and water return vehicle, in which filtrate is stored in a filtrate water tank in advance, the sludge water treatment tank is depressurized by a pressurization/decompression device, and a suction/drainage hose is connected. After suctioning and storing the sludge water from the septic tank etc. into the sludge water treatment tank, pressurize the filtrate water tank using the pressurization and depressurization device mentioned above, and suck the filtrate water in the filtrate water tank into the sludge water treatment tank. An amount equal to the amount of stored sludge water is discharged as water to the septic tank via the suction and drainage hose, while the sludge water in the sludge water treatment tank is coagulated and mixed by the stirring mechanism to form sludge water. Flocs are formed in the treatment tank, and the primary treated water in the sludge water treatment tank containing the thus obtained flocs is pressurized by pressurizing and depressurizing the sludge water treatment tank, and is forced to be sent to the filtration device. Solid-liquid separation is performed using a filtration device, and the separated filtered water is
A method for treating sludge water in a septic tank or the like and using a water-filling return vehicle, characterized in that the pressure in a single water tank is reduced by the pressure reduction device and the water is sucked into a filtrate tank.