JPH11140962A - Collecting method for night soil or the like and carrier vehicle with tank therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the number of collectible night soil septic tanks in a cruise by collecting night soil in septic tanks into a tank and separating liquid through a porous material arranged in the tank to circulate it to the septic tank for condensation of the night soil in the tank. SOLUTION: Night soil is collected from night soil septic tanks 7 in respective houses to a tank 4 through a collecting tube 33 by driving a vacuum pump 23 in a vacuum car 1. A solid/liquid separating means 10 made of a porous material 20 is provided in the tank 4 and connected to the vacuum pump 23 through a pipe and further, a liquid-circulation tube 26 is also connected thereto. In this way, only liquid is separated from the collected night soil into the tank 4 through the porous material 20 by driving the vacuum pump 23 to circulate the liquid to the septic tank 7 through the liquid-circulation tube 26. In this time, compressed air is supplied by a compressor 32 to prevent the porous material 20 from being jammed. Accordingly, the night soil collected into the tank can be condensed and collectible number of septic tanks can be increased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for collecting human waste and the like and a transport vehicle with a tank.

[0002]

2. Description of the Related Art For example, a vacuum car is equipped with a tank for temporary storage and can be moved and traveled, and literally sucks human waste from a septic tank by a vacuum pump, temporarily stores it, and turns around each house and puts it in the tank. When the night soil becomes full, the person returns to the processing facility and starts collecting the night soil again.

[0003]

However, in the conventional vacuum car, since the human waste collected from the septic tank is moved and traveled as it is, the inside of the tank immediately becomes full, and as a result, 1 There was a limit to the number of units that could be recovered in a single round.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method for collecting human waste and the like and a transport vehicle equipped with a tank, which can significantly increase the number of units that can be collected in one round. With the goal.

[0005]

According to a first aspect of the present invention, there is provided a method for storing a liquid containing a solid content, such as human waste or polluted water, in a tank mounted on a transport vehicle. Part or all of the liquid from the stored liquid containing solids is discharged from the tank, and only the discharged contents are transported.

According to a second aspect of the present invention, in the first aspect, the liquid is discharged to the outside of the tank through the holes of the porous material, and the solids are restricted by the holes to discharge the solids and the liquid. Try to separate.

According to a third aspect of the present invention, in the first or second aspect, the liquid is discharged by a suction force.

[0008] The invention according to claim 4 is characterized in that human waste, polluted water, etc.
In a transport vehicle equipped with a tank capable of storing a liquid containing a solid content, a separating means capable of restricting the discharge of the solid content and discharging only the liquid is provided in the tank or at a location communicating with the tank. It is characterized by the following.

According to a fifth aspect of the present invention, in the fourth aspect, the separating means is a porous material.

The invention according to claim 6 is the invention according to claim 4 or 5.
In the above, the separating means also includes a suction means communicating with the porous material.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. 1 to 3 show an embodiment of a vacuum car as a preferred embodiment. FIG. 1 is a schematic explanatory view showing a recovery state of the vacuum car including a relationship with a septic tank, and FIG. 2 is II in FIG. -I
FIG. 3 is a sectional view taken along the line III-III of FIG.

In FIG. 1, reference numeral 1 denotes a vacuum car (transportation vehicle with a tank). The vacuum car 1 has a chassis 3 passing through the bottom of a cabin 2, and the chassis 3 extends long and extends upward. The tank 4 is mounted. 5 is a wheel.

[0013] The tank 4 has the same type as the conventional one.
Although it has a capacity, the bottom can be made larger than that shown in FIG. 1 to increase the capacity, or a round shape such as an ellipse can be made into a rectangular parallelepiped or a square shape.

On the upper part of the tank 4, it is fed out by a winding type.
A casing 6 for accommodating a storable take-off tube is mounted. One end of the tube is communicated with the tank 4 and the tip can be inserted into the septic tank 7 by being fed out. The outlet 8 for human waste contained in the tank 4 is provided at the upper rear part of the tank 4, but is provided at the lower part of the tank 4, other means,
For example, you may make it discharge with a vacuum pump mentioned later.

At the front of the tank 4, a separating means 10 as shown in FIGS. 2 and 3 is provided. Separation means 1
No. 0 is provided with four stays 13 fixed to the seats 11 fixed to a plurality of inner bottom surfaces of the tank 4 by fastening members 12. The stays 13 are arranged at four points, and between the upper ends of a pair of front and rear opposing members, are fastened by the fasteners 12 so that the U-shaped pedestals 14 form a pair of right and left. It is mounted.

A liquid suction pipe 15 is horizontally fixed by a fastener 16 such as a U-shaped bracket using the pair of right and left receiving tables 14. The pipe 15 includes a plurality of parallel main pipes 15a with their centers directed to the left and right, and side pipes 15b, 15b fixed to the left and right ends of the main pipes a in a communicating manner. At the same time, a withdrawal pipe 15c is fixed from the foremost main pipe 15a in communication with the pipe 15a.

A hole is made in the longitudinal direction of each of the main pipes 15a, and a receiving cylinder 18 having an internal thread is formed in the hole.
Are fixed, and sockets 19 are respectively screwed into the receiving cylinders 18. Socket 1
9 are porous materials 20 formed by bending a hollow fiber membrane (or a flat membrane), which is one of UF membranes, into an inverted U-shape.
There are provided a large number of nozzles which are inserted and held with their free ends facing downward and communicate with the liquid suction pipe 15 from the inside of the tank 4.

Then, the extraction pipe 15c has:
A communication pipe 22 inserted and fixed below the front wall 4a of the tank 4
And a connecting pipe 24 connected to the vacuum pump 23 of FIG. 1 is connected to the communicating pipe 22.

A liquid reflux tube 26 is connected to the vacuum pump 23 so as to communicate with the vacuum pump 23, and the tip of the tube is inserted into the purification tank 7. The tube 26 can also be fed and wound.

Reference numeral 30 denotes air blowing means. The blowing means 30 is fixed on a mounting table 31 fixed to the stay 13, and is configured so that compressed air can be supplied from a compressor 32 shown in FIG. ing.

The vacuum car 1 shown in FIG. 1 collects human waste by inserting the illustrated human waste collection tube 33 into the septic tank 7 and driving the vacuum pump 23. At the same time (or after the collection), the vacuum pump 23 is operated, whereby only the liquid is extracted through the porous materials 20 and returned into the purification tank 7 through the liquid reflux tube 26.

As a result, the porous material 20 restricts the solid content from leaking out, so that only concentrated human waste is left in the tank 4 in a state where the liquid has leaked out. The air from the air jetting means 30 rises and functions to prevent clogging by separating what adheres to or tends to adhere to the porous materials 20.

Therefore, the human waste collected in the tank 4 is concentrated to about 1/3, so that it has been necessary to go around three times only once. That is,
It becomes a vacuum car with three times the carrying capacity.

FIG. 4 shows that the pipe 15a is provided with a porous material 20.
Are bundled, inserted, and fixed by the resin 35.

In the embodiment shown in FIGS. 2 and 3, the porous material 2 is used.
.. Are rising, but as shown in FIG. 5, a hanging method (air ejection means is not shown) may be used. That is, the opening 3
6, while a lid 37 closing the opening 36 is provided with hanging porous materials 20. Porous material 2
Numeral 0 denotes a pipe hanging from a liquid suction pipe 15. The pipe 15 is taken out of the tank 4 and connected to a vacuum pump. The lid 37 is detachably attached to the tank 4 by a fastening member 38 and the hanging member 4 is attached to the hanging receiver 39.
Detachment is also possible by multiplying by zero.

In the suspension method, the porous material 20 is detachable, but this detachment method may be implemented on another wall surface of the tank 4, for example. The porous material 20 can be washed or replaced by being detachable. In the case of a suspension type, the position of the pipe 15 is lowered to eliminate unnecessary suction of air, or a coating is applied to the upper outer periphery of the porous material 20 so that air does not enter therefrom. There is.

The porous material may be a microfiltration membrane or a reverse osmosis membrane in addition to the UF membrane.
In the case of a general capacity of about m ³ , if the surface area of the porous material is set to about 100 m ^{2, the} triple concentration can be sufficiently performed. Therefore, in order to increase the surface area, the number of the porous materials 20 in FIG. 2 may be increased, or the methods of FIGS. 2 and 5 may be combined.

Further, as shown in FIG.
The porous material 20 attached to 5 may be made of a nonwoven fabric or a polyurethane foam. In this case, the porous material 20 may be arranged sideways like a virtual line or may be arranged on the bottom surface.

As shown in FIG. 7, the vacuum car (transportation vehicle) 1 may be of a trailer type.

Further, as shown in FIG. 8, in the system in which the porous members 20 are suspended from the lid 37, the air ejecting means is elastically supported by a spring 42 so that solids can be easily separated by vibrations during traveling. It may be omitted. Of course, you may comprise combining air blowing means. As shown in the figure, if the height of the porous members 20 is set low as shown by the imaginary line, the discharge of only air is prevented.

The vacuum car 1 shown in FIG. 1 is recognized to be a vacuum car as it is, but it can be camouflaged with a general truck by covering it with a rectangular parallelepiped case, for example. . Further, the tank in the above embodiment may be provided with a densitometer so that it can be displayed. In the above description, a vacuum car is used as an example. However, the method and the apparatus can also be used for treating low-concentration wastewater and treating polluted water (drainage) generated during civil engineering work.

[0033]

As described above, the present invention accommodates a liquid containing solids such as night soil and polluted water in a tank mounted on a transport vehicle, and converts one of the liquids containing solids contained therein into a liquid. Part or all are discharged from the tank, and only the contents after discharge are transported, so that the number of units that can be recovered in one patrol can be significantly increased, and a method for collecting human waste and transport with a tank A vehicle can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a vacuum car according to an embodiment of the present invention and a state of purification.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III of FIG. 2;

FIG. 4 is a sectional view showing another embodiment.

FIG. 5 is a sectional view showing an embodiment in which a porous material is suspended and made detachable.

FIG. 6 is a cross-sectional view showing another porous material.

FIG. 7 is a side view showing an embodiment in which the vacuum car is a trailer system.

FIG. 8 is a cross-sectional view showing an embodiment in which a porous material is a spring supporting system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Vacuum car (transportation vehicle) 4 ... Tank 7 ... Septic tank 10 ... Separation means 20 ... Porous material 23 ... Vacuum pump 26 ... Liquid recirculation tube 30 ... Air ejection means 33 ... Human waste collection tube

Claims (6)

[Claims] 1. A liquid containing solids such as human waste and polluted water is stored in a tank mounted on a transport vehicle, and a part or all of the liquid from the stored liquid containing solids is discharged from the tank. A method for collecting human waste and the like in which only the contents after discharge are transported. 2. The method for collecting human waste and the like according to claim 1, wherein the liquid is discharged to the outside of the tank through a hole of the porous material, and the solid is controlled to be discharged by the hole to separate the solid from the liquid. . 3. A method according to claim 1, wherein the liquid is discharged by a suction force. 4. A transport vehicle equipped with a tank capable of storing a liquid containing a solid content such as human waste or polluted water, wherein the discharge of the solid content is restricted in the tank or at a place communicating with the tank, and only the liquid is discharged. A transport vehicle with a tank, provided with a separation means capable of discharging the wastewater. 5. The transport vehicle with a tank according to claim 4, wherein the separating means is a porous material. 6. The transport vehicle with a tank according to claim 4, wherein the separating means further comprises a suction means communicating with the porous material.