KR20170072611A

KR20170072611A - Sewage circular purifier treatment apparatus for water saving of washing water underground facility

Info

Publication number: KR20170072611A
Application number: KR1020150180988A
Authority: KR
Inventors: 한붕전; 박준; 구본주; 김하늘
Original assignee: 실리기업 주식회사; 한붕전
Priority date: 2015-12-17
Filing date: 2015-12-17
Publication date: 2017-06-27
Also published as: KR101799868B1

Abstract

The present invention relates to a method and apparatus for recovering wastewater generated in an underground facility, purifying and treating wastewater and sludge in stages, and purifying purified water in an underground facility to be reused as cleaning water required for cleaning the underground facilities, The present invention relates to an eco-friendly water circulation water treatment apparatus which can be utilized as cleaning water for underground facilities. The present invention relates to a dredging vehicle having a purification means for recovering wastewater from an underground facility and separating the wastewater into sludge and wash water; And a water purification means for filtering the sludge and the washing water, which is connected to the washing water preliminarily treated by the purifying means of the dredge vehicle. The dredging vehicle and the purified water vehicle are connected to each other in the work section, , And the washing water is directly used as cleaning water for cleaning the underground facilities. The present invention provides an eco-friendly water circulation water treatment apparatus capable of utilizing the purified water introduced into the ground as public water and underground facility water. do.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewage treatment plant for sewage treatment,

The present invention relates to an eco-friendly sewage circulation water treatment apparatus capable of utilizing purified water intake of an underground facility as public water or underground facilities water treatment, and more particularly, to an eco-friendly water circulation water treatment apparatus capable of recovering sewage generated in an underground facility, The present invention relates to an eco-friendly sewage circulation water treatment apparatus capable of utilizing purified water as an inland water facility for reuse as cleaning water required for cleaning work of underground facilities, as cleaning water for public water and underground facilities.

Generally, underground facilities include manholes and sewer lines. When the sewage or stormwater is introduced into such a manhole, a large amount of foreign matter or waste soil is introduced into the sewage pipe, and a part of the sewage is drained along the wastewater to the sewage pipe, There was a problem.

In addition, the sediment is settled in the inner bottom of the manhole of the electric or communication facility and the drainage is not smoothly carried out, and the cleaning work is difficult, so that there are many difficulties in maintenance. If the cleaning is not properly performed, There are habitats and transportation passages for various insects and insects, and there is a problem that the offensive odors flow back to the point of occurrence of the manhole and domestic sewage and are diverged.

Therefore, in order to clean such underground facilities, a conventional cleaning vehicle for vacuum suction uses a method of spraying high-pressure water (washing water) to clean and cleaning the sewage to be sucked together with the sludge.

A conventional vacuum suction cleaning vehicle includes a water tank for storing water for injecting high pressure for cleaning sludge and dirt; A high pressure pump and a washing water injecting device for injecting high pressure water of the water tank, which is separated from the sludge tank for collecting sludge and dirt after the dredging operation and the double tank is mounted on the vehicle, And a vacuum pump for vacuum suction.

A method of cleaning an underground facility using the above conventional vacuum suction cleaning vehicle is characterized in that water in a water tank is sprayed to the high pressure spraying apparatus by using a high pressure pump to perform cleaning and the wastewater to be cleaned is cleaned using a vacuum suction pump, And is withdrawn into the sludge tank.

However, when the sewage recovered into the sludge tank reaches the full water level, there is a problem that the sewage discharged as it is due to the need to rework after draining the sewage to the outside is discharged to the river or sewage to cause pollution, There is a problem that the water in the water tank needs to be re-supplied.

In addition, there is a problem in that it is necessary to move the cleaning water from the cleaning work site in order to discharge the sewage and clean water for cleaning during the cleaning operation. Therefore, the time required for the cleaning operation is long and the cost for disposing sludge and sewage is mixed. And the like.

For the purpose of solving these problems, the sludge is separated from the recovered sewage, filtered, and supplied to the cleaning water spray pump for reuse as washing water through the domestic patent No. 10-0674138 filed by the present applicant A water reuse and waste water treatment device of a manhole sweeper is disclosed.

However, not only the conventional sludge tank capacity of the conventional sludge tank has been limited, but also the water treatment capacity has been limited. In addition, the dredged vehicle is a large-sized vehicle, which has a narrow manhole as well as a narrow manhole The dredging operation of the dredging vehicle is difficult, and the space occupied by the dredged vehicle is also very large, which can cause traffic disruption.

Further, in a dredged vehicle that is operated on the road, there are various problems such as a safety accident occurring due to a driving vehicle suddenly advancing from the rear of a work section even when a safety sign is installed on a road.

KR Patent Registration No. B1 10-0674138 (Jan. 18, 2007) KR Patent Publication No. 2001-0107846 (Dec. 07, 2001)

An object of the present invention is to provide a method and apparatus for recovering wastewater generated from an underground facility and purifying and treating the wastewater with sludge and washing water in stages to reuse the wastewater for cleaning the underground facilities, And an eco-friendly water circulation water treatment apparatus which can be utilized as underground facility water wash.

Another object of the present invention is to recover wastewater generated in an underground facility and purify and purify the wastewater by using sludge and wash water in stages and store the wastewater to be used as cleaning water for cleaning the underground facilities.

It is still another object of the present invention to provide a washing and spraying means of a dual structure capable of storing and reusing washing water in a state where the sewage generated in the underground facility is recovered and purified and purified by the washing water and the sludge step by step, So that the cleaning efficiency can be improved by reusing water.

A further object of the present invention is to distribute dredged vehicles having purification means and water purification vehicles having purification means to the front and back of the work section, so that the sludge of wastewater can be separated and discharged stepwise more effectively.

It is a further object of the present invention to provide a sludge separation system capable of efficiently discharging sludge through sludge separation of dredged vehicles and purified water vehicles arranged in a distributed manner in front of and behind a work section and efficiently distributing the capacity of each tank, .

It is a further object of the present invention to provide a dredging site on a road where frequent vehicle traffic is frequently distributed to a vehicle so that occupancy time and work time can be greatly reduced, So as to provide a safeguard capable of safely protecting it.

It is a further object of the present invention to provide a method and a system for locating a vehicle on a road, such as a road traffic situation, a vehicle inaccessible area, a narrow alley, or the like, This is to enable dredging of underground facilities efficiently in India.

It is a further object of the present invention to provide a method and a device for using cleaned sewage water as cleaning water for cleaning facilities in an underground facility as well as discharging cleaned sewage water directly to sewage and utilizing public waterways It is also possible to use it as an environmental protection that can reduce sewage pollution and river pollution source.

In order to achieve the above object, the present invention provides a dredging vehicle comprising: a dredging vehicle having a purification means for recovering wastewater from an underground facility and separating the wastewater into sludge and wash water; And a water purification means for filtering the sludge and the washing water, connected to the washing water preliminarily treated in the dredging means of the dredge vehicle. The dredging vehicle and the purified water vehicle are connected to each other in front of and behind the work section, And the washing water is directly used as washing water for cleaning the underground facilities. The water treatment system according to claim 1, .

In order to achieve the above-mentioned object, the present invention provides a dredging device for purifying dredged vehicles, comprising: a water tank for supplying stored water to cleaning water for cleaning; A sludge tank for evacuating the inside of the reactor by a vacuum sucking device to recover the washed wastewater through a suction pipe; A primary filtration filter installed in the sludge tank as a partition wall to primarily filter the sucked sewage; A secondary filtration filter for re-filtering the wastewater filtered by the primary filtration filter; And a supply line connected to discharge the filtered wastewater from the sludge tank to the purified water vehicle in the secondary filtration filter.

The primary filter may be a mesh screen network.

In addition, the secondary filter may be a mesh screen filter.

In order to achieve the above-mentioned object, the water purification means of the water purification vehicle includes a water pump for pumping sewage pretreated in the dredging vehicle through a supply line; A filter press connected to the pumping pump to dewater the washing water in the pumped sewage and compress and separate only the sludge; A discharge pipe for discharging dehydrated washing water to the filter press; A pressurizing pump connected to the discharge pipe for directly spraying the wash water to the cleaning water for cleaning the underground facility; And a washing water filtration filter installed in the discharge pipe and filtering the washing water before filtering the washing water sprayed from the pressure pump to purify the washing water.

The washing water filtering filter may further include a case; A pair of left and right flanges coupled to the left and right sides of the case; A pair of left and right pipe connection ports coupled to the left and right flanges for connection and fixing to the discharge pipe; A mesh network provided on both sides of the case; And a filter medium filled in the case between the mesh networks.

In addition, the filter medium may be a fiber filter for filtering fine foreign substances remaining in the washing water.

In order to achieve the above-mentioned object, the water purification means of the purified water vehicle further comprises an adjustment valve for bypassing the wash water discharged from the discharge pipe to a water tank for supplying cleaning water for cleaning of the dredge vehicle, And the adjustment valve is connected to the water tank as another discharge pipe.

In order to achieve the above-mentioned object, the dredged vehicle and the purified water vehicle are connected to a supply line in front of and behind a work section, and any one of the dredged and purified water vehicles is provided with a collision safety And an alarm safety device for the alarm.

In addition, the alarm safety device may be a siren alarm that can identify the vehicle entering the rear of the work zone.

In addition, the alarm safety device may be a rear detection sensor that monitors the rear of the vehicle in accordance with the collision distance of the vehicle entering from the back of the work section to inform the collision vehicle or the operator of the collision warning.

In addition, the alarm safety device may be a rear surveillance camera that monitors the rear of the vehicle in accordance with the collision distance of the vehicle entering from the rear of the work section to inform the collision vehicle or the user of the collision alarm.

The present invention relates to a method and apparatus for recovering wastewater generated from an underground facility, purifying and treating the wastewater with sludge and water in a stepwise manner, and reusing it as cleaning water required for cleaning the underground facility, It is possible to provide an eco-friendly sewage circulation water treatment apparatus which can be utilized as facilities washing water.

In addition, the present invention can recover the wastewater generated in the underground facility, purify and purify the wastewater with the sludge and the washing water in stages, store the washing water, and use it as washing water required for cleaning the underground facility.

In addition, the present invention provides a double-structure washing and spraying means capable of storing and reusing washing water in a state where the sewage generated in the underground facility is recovered and purified and purified by the washing water and the sludge step by step, Cleaning efficiency can be improved.

Further, according to the present invention, a dredge vehicle having purification means and a water purification vehicle having purification means can be distributed to the front and back of the work section, so that the sludge of wastewater can be separated and discharged stepwise more effectively.

In addition, the present invention enables efficient sludge discharge through sludge separation of the dredged vehicle and the purified water vehicle that are distributed to the front and rear of the work area, and efficiently distributes the capacity of each tank and maximizes utilization of space for mounting the vehicle.

It is another object of the present invention to provide a dredging system and a dredging system in which a road occupation time and a working time can be largely reduced from a dredging site on a road where frequent vehicle traffic is frequently distributed to a vehicle, A safety device can be provided.

In addition, the present invention can be applied to the construction of a large-sized vehicle in which the construction area is expanded by the distribution arrangement of the working vehicle, and the traffic conditions such as road traffic situation, vehicle inaccessible area, narrow alley, It is possible to efficiently perform the dredging work of the facility.

In addition, the present invention can be used not only as cleaning water for cleaning facilities underground with the sewage-purified water, but also can reduce the pollution source of sewage by discharging the purified water directly to sewage, It is possible to positively utilize an eco-friendly underground facilities purification system that can utilize public waterways.

1 to 7 show an embodiment of an eco-friendly water circulation water treatment apparatus which can utilize purified water intake of an underground facility according to the present invention as public water and underground facilities water wash,
1 is a whole installation schematic view of an eco-friendly sewage circulation water treatment apparatus capable of utilizing purified water intake of an underground facility according to the present invention as public water and underground facilities water wash,
FIG. 2 is an overall schematic diagram of an eco-friendly sewage circulation water treatment apparatus capable of utilizing purified water intake of an underground facility according to the present invention as public water and underground facility water,
FIG. 3 is a flowchart illustrating a process of purifying and purifying wastewater according to an eco-friendly wastewater circulation water treatment apparatus capable of utilizing the purified water introduced into the ground facilities according to the present invention as water for public water and underground facilities,
FIG. 4 is a schematic view showing a washing water filtering filter according to an eco-friendly sewage circulation water treatment apparatus capable of utilizing the purified water introduced from the underground facilities according to the present invention as public water and underground facilities washing water,
FIG. 5 is a perspective view showing a washing water filtration filter according to an eco-friendly sewage circulation water treatment apparatus capable of utilizing the purified water introduced from the underground facility according to the present invention as public water and underground facility water.
Fig. 6 is a front view of Fig. 5,
Fig. 7 is a longitudinal sectional view of Fig. 5; Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to inform.

Hereinafter, the side where the dredged vehicle 100 is located is referred to as a front side of the road on which the vehicle advances, and the side where the purified water vehicle 200 is located is referred to as a rear side of a road on which the vehicle advances.

1 to 7 show an embodiment of an eco-friendly sewage circulation water treatment apparatus which can utilize purified water introduced from underground facilities according to the present invention as public water and underground facility water.

The eco-friendly water circulation water treatment apparatus (10) according to an embodiment of the present invention includes a dredging vehicle (100) having purification means for recovering wastewater from an underground facility and separating the wastewater into sludge and wash water; And a water purifier 200 having a purification means for compressing and separating the washing water preliminarily treated by the purifying means of the dredging vehicle 100 with sludge and washing water.

Here, the dredged vehicle 100 and the purified water vehicle 200 are basically a vehicle having a driver's seat and a loading unit. Each of the dredged vehicle 100 and the purified water vehicle 200 has a device for separating the wastewater into sludge and washing water. Is preferred.

The dredging vehicle 100 includes a water tank 110 for supplying the washing water stored in the washing means to the washing water for cleaning the underground facilities; A sludge tank (120) for evacuating the inside of the tank by a vacuum suction device to recover the washed sewage through the suction pipe (101); A primary filtration filter 130 installed in the sludge tank 120 as a partition wall to primarily filter the sucked sewage; A secondary filter (140) for filtering the wastewater filtered by the primary filter (130); And a supply line 150 connected to discharge the filtered wastewater from the sludge tank 120 to the purified water vehicle 200 through the secondary filtration filter 140.

Here, the vacuum suction apparatus is a suction pump 102, and sucks sewage to the sludge tank 120 through a suction pipe 101.

The sewage filtered in the sludge tank 120 is supplied to the filter press 220 via the feed line 150 by the pump 210 installed in the water purifier 200 via the valve 103 PURPOSE.

In the construction of the present invention, the controller of the dredging vehicle is usually installed in the driver's seat, and controls the operation of each of the valves, the motor, and each of the devices. While the operation status of each device is automatically monitored through the sensors, This configuration is similar to that of a controller of a conventional vacuum suction cleaning vehicle. In the present invention, a detailed description of the configuration of the controller and its control program will be omitted.

It is preferable that the water tank 110 is generally constituted by one tank or two water tank 110 is installed on both sides of the sludge tank 120. The two water tanks are configured to communicate with each other by a communication pipe (not shown in the drawing), and a water supply device or the like for supplying the washing water from the outside to the water tank 110 is not shown in the drawing, The configuration is the same as that provided in the cleaning vehicle and will not be described below.

In addition, the sludge tank 120 is a conventional sludge tank mounted on a vehicle and adapted to recover wastewater by a vacuum suction system. The sludge tank 120 having the above-described structure is the same as the sludge tank of a conventional vacuum suction sweeper. As a similar structure, the structures of the suction pipe connecting device, the hatch, the vacuum suction device, the injection device, and the like are the general construction, and the description thereof is omitted in the present invention.

The sludge tank 120 has a primary filtration filter 130 installed as a partition and a secondary filtration filter 140 for secondary filtration of the wastewater filtered by the primary filtration filter 130 Respectively.

The wastewater flowing into the sludge tank 120 is treated to filter primary sludge or the like in the primary filtration filter 130 according to the flow of the wastewater flowing through the primary filtration filter 130, After the second sludge is separated during the passage through the second filtration filter 140, the sewage is supplied to the purified water vehicle 200 having the water purification means along the supply line 150 by the water pump.

Preferably, the primary filtering filter 130 is a mesh type screen net having a mesh size of about 5 mm, and the secondary filtering filter 140 is a mesh type screen filter having a hole size of about 2 mm As the mesh shape, the mesh shape can be various mesh shape or grid pattern, and the shape and size are not limited.

The purification means of the purified water vehicle 200 includes a pumping pump 210 for pumping sewage pretreated in the dredging vehicle 100 through a supply line 150; A filter press 220 coupled to the pumping pump 210 to dewater the wash water in the pumped sewage and compress and separate only the sludge; A discharge pipe 230 for discharging dehydrated washing water to the filter press 220; And a pressurization pump 240 connected to the discharge pipe 230 for directly injecting the wash water into the cleaning water for cleaning the underground facility.

In addition, the filter press 220 is formed to receive the wastewater passing through the sludge tank 120 through the supply line 150 by the pump 210.

The filter press 220 is provided with a plurality of filter plates and filter cloths between a fixing plate provided on one side of the filter press and a pressure plate operated on the other side by a hydraulic cylinder. When the filter plate is pressed with a pressure plate while supplying sludge, The sludge is discharged to the filter cloth and discharged to the filter cloth, and the sludge is collected and coalesced between the filter cloths. Thus, when the filter cloth is separated from the filter cloth after the dehydration is completed, the sludge pressed into the cake state falls into the lower chute of the filter press. So that the solid sludge can be transported to the disposal place and treated. Therefore, the filter press apparatus of the general structure which is generally used suffices, and the following drawings and detailed description of the construction will be omitted.

The discharge pipe 230 discharges the filtered and dehydrated wash water from the filter press 220 and the wash water discharged from the discharge pipe 230 is supplied to the pressurizing pump 240 connected to the outside of the purified water vehicle 200 So that the washing water can be directly sprayed.

In this way, the dredged vehicle 100 and the purified water vehicle 200 are connected to each other by the supply line 150 before and after the operation section, so that the sludge and wash water can be separated step by step by sucking the sewage from the underground facility, The washing water separated from the filter press 220 may be injected again into the cleaning water for cleaning the underground facility.

Meanwhile, the water purification means of the purified water vehicle 200 includes a washing water filtering filter 250 installed in the discharge pipe 230 for filtering and cleaning the washing water again before spraying the washing water sprayed from the pressure pump 240 And the like.

The washing water filtering filter 250 includes a case 251; A pair of left and right flanges 252 and 252a coupled to the right and left of the case 251; A pair of right and left pipe connection ports 253 and 253a coupled to the left and right flanges 252 and 252a for connection and fixing to the discharge pipe 230; A mesh net 254 provided on both sides inside the case 251; And a filter medium 255 filled in the case 251 between the mesh net 254 and the mesh net 254.

The case 251 is formed to have an internal space to fill the filter material 255.

The case 251 is located at the center of the left and right flanges 252 and 252a and is fitted inwardly between the left and right flanges 252 and 252a.

Right and left pipe connection ports 253 and 253a are provided at both ends of the left and right flanges 252 and 252a so as to be coupled to the discharge pipe 230 and fixed.

The mesh net 254 may be fixed to the inside of the case 251 to purify fine sludge or precipitate remaining in a part of the washing water by filtering once more.

Further, the filter material 255 is formed of a fiber filter for once filtering the fine foreign substances (sludge) remaining in the washing water.

Preferably, the filter material 255 may be formed of a fiber filter for once filtering fine foreign matter (sludge) remaining in the washing water. The excitation fiber filter can be provided in various types of filter structures, such as a layer structure or a nonwoven structure, and does not limit the structure and the shape.

Meanwhile, at least one of the left and right pipe connection ports 253 and 253a may be formed with a lock member 256 that can be turned on / off to fix a washing water filtering filter to a discharge pipe connected thereto.

The fixing screw bar 257 is provided at one end of the left and right flanges 252 and 252a which are coupled to the left and right sides of the case 251 at the center thereof. And is fastened and fixed by the washer 258 and the tightening nut 259.

In addition, the fixed screw bar 257 forms a thicker body 257a at the center than both end portions. This is for fixing the body portion to the end portions of the left and right flanges 252 and 252a so that they do not flow.

On the other hand, the water purification means of the purified water vehicle 200 includes an adjustment valve 260 for bypassing the washing water discharged from the discharge pipe 230 to the water tank 110 for supplying cleaning water for cleaning of the dredged vehicle 100 And the adjustment valve 260 can be connected to the water tank 110 by another discharge pipe 230A.

In other words, the washing water having passed through the washing water filtering filter 250 via the discharge pipe 230 can be directly sprayed to the washing water through the pressurizing pump 240 so that the washing water can be used through the pressing pump 240 A water tank for storing washing water of the dredged vehicle 100 through another discharge pipe 230A without directly spraying washing water by a control valve 260 installed in a certain section of the discharge pipe 230 before the washing water is sprayed, The washing water may be bypassed to the washing tub 110 to be selectively used as wash water.

That is, the wash water stored in the water tank 110 may be used by being sprayed with wash water from the underground facility by the pressurization pump 240 again.

The dredged vehicle 100 and the purified water vehicle 200 are connected to the supply line 150 at the front and back of the work section, And an alarm safety device 270 for collision safety of the vehicle.

Here, in order to prepare for the collision of the entering vehicle, which can not be prevented even under some road control, during the cleaning operation according to the arrangement of the cleaning vehicle in the repair area of the manhole or the sewer line which is the underground facility by the alarm safety device 270 .

Also, the alarm safety device 270 may be installed as a siren alarm which can identify the vehicle entering from behind the work section.

In addition, the alarm safety device 270 may be installed as a rear detection sensor that detects the rear of the vehicle in accordance with the collision distance of the vehicle entering from the rear of the work section and informs the operator of the collision vehicle of the collision alarm.

In addition, the alarm safety device 270 may be installed as a back-up surveillance camera that monitors the rear of the vehicle according to the collision distance of the entering vehicle at the back of the work section and informs the collision vehicle or the user of the collision alarm, And may be installed and operated as a safety monitoring information system.

Preferably, the alarm safety device 270 basically blocks the collision between the work vehicle on the road and the vehicle entering the road, and it is preferable that the alarm is of a type that can be directly recognized by the operator or the vehicle driver. A form of detection that can alert alerts quickly is sufficient. In addition, it can be installed as a black box as an auxiliary device for the occupational safety manager to judge whether an accident has occurred or for quick response.

Hereinafter, the operation and effect of the eco-friendly sewage circulation water treatment apparatus which can utilize the purified water intake of the underground facility according to the present invention as public water and underground facility water wash will be described as follows.

First, sewage mixed with sludge and water in a manhole or a sewer line, which is an underground facility, is introduced into the sludge tank 120 through a suction pipe 101 by a suction pump 102.

Next, the wastewater collected in the sludge tank 120 is passed through the primary and secondary filtration filters 130 and 140 to separate the primary and secondary wastewater into sludge and water.

The separated and purified wastewater is pumped by the pumping water pump 210 of the water purifier 200 via the valve 103 and the wastewater pretreated in the dredging vehicle 100 through the supply line 150 And is supplied to the vehicle 200.

Then, the wastewater pumped by the water pump 210 of the purified water vehicle 200 is supplied to the filter press 220 inside, and the sludge is compressed to dewater the wash water, discharged through the discharge pipe 230, The washing water is sprayed or discharged by the washing unit 240.

Meanwhile, the washing water may be passed through the washing water filtering filter 250 for once more filtering the washing water, which is supplied to the pressurizing pump 240, to discharge the washing water in a completely purified state.

As described above, the filtered washing water can be directly used as washing water for cleaning dirt in a manhole or a sewer line, which is an underground facility, by a forward pressure pump 240.

In addition, the wash water may be stored by bypassing the wash water to the water tank 110, which is loaded on the dredge 100 by the adjustment valve 260 before being discharged to the pressurization pump 240.

Thus, the washing water stored in the water tank 110 can be returned to the washing water for a predetermined period of time during the initial operation of the apparatus, and can be used again as the washing water for dirt removal by the pressurizing pump 240 during the initial operation.

In addition, by the alarm safety device 270 installed on the working vehicle, during the cleaning operation according to the cleaning vehicle arrangement in the maintenance area of the underground facility, safety against collision of the vehicle which can not be prevented even under some road control, It can prevent accidents in advance.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents.

10: Water circulation water treatment device
100: Dredging vehicle
101: Absorption tube
102: Suction pump
103: Valve
110: Water tank
120: sludge tank
130: primary filtration filter
140: Secondary filter
150: Supply line
200: water purification vehicles
210: Pumping pump
220: Filter Press
230: discharge pipe
240: pressure pump
250: Wash water filter
251: Case
252, 252a: left and right flanges
253, 253a: right and left pipe connection ports
254: mesh network
255: Filter medium
256: opening and closing lock
257: Fixed screws
257a: body
258: Washer
259: Fastening nut
260: Adjustment valve
270: Alarm safety device

Claims

A dredging vehicle (100) having purification means for recovering wastewater from underground facilities and separating the wastewater into sludge and wash water;
And a water purifier (200) having a purification means for compressing and separating sludge and wash water, connected to wash water pretreated in the purifying means of the dredging vehicle (100)
The dredging vehicle 100 and the purified water vehicle 200 are connected and arranged in a work section to separate sewage into sludge and wash water in stages and the wash water is immediately used as cleaning water for cleaning the underground facility
Eco-friendly sewage circulation water treatment system that can utilize the purified water intake of underground facilities as public water and underground facility water,

The method according to claim 1,
The purifying means of the dredging vehicle (100)
A water tank 110 for supplying the stored water to the cleaning water for cleaning;
A sludge tank (120) for evacuating the inside of the tank by a vacuum suction device to recover the washed sewage through the suction pipe (101);
A primary filtration filter 130 installed in the sludge tank 120 as a partition wall to primarily filter the sucked sewage;
A secondary filter (140) for filtering the wastewater filtered by the primary filter (130);
And a supply line 150 connected to discharge the wastewater filtered by the secondary filter 140 from the sludge tank 120 to the purified water vehicle 200
Eco-friendly sewage circulation water treatment system that can utilize the purified water intake of underground facilities as public water and underground facility water,

3. The method of claim 2,
The primary filtering filter 130 is a mesh screen network.
An eco-friendly water circulation water treatment system that can utilize the purified water intake of underground facilities as public water and underground facility water.

3. The method of claim 2,
The secondary filter (140) is a mesh type screen filter
An eco-friendly water circulation water treatment system that can utilize the purified water intake of underground facilities as public water and underground facility water.

The method according to claim 1,
The purification means of the purified water vehicle (200)
A pumping pump 210 for pumping sewage pre-processed in the dredging vehicle 100 through a supply line 150;
A filter press 220 coupled to the pumping pump 210 to dewater the wash water in the pumped sewage and compress and separate only the sludge;
A discharge pipe 230 for discharging dehydrated washing water to the filter press 220;
And a pressurizing pump (240) connected to the discharge pipe (230) for directly discharging the wash water to the cleaning water for cleaning the underground facilities
An eco-friendly water circulation water treatment system that can utilize the purified water intake of underground facilities as public water and underground facility water.

6. The method of claim 5,
The purification means of the purified water vehicle (200)
And a washing water filtering filter (250) installed in the discharge pipe (230) for purifying the washing water before filtering the washing water sprayed from the pressure pump (240)
An eco-friendly water circulation water treatment system that can utilize the purified water intake of underground facilities as public water and underground facility water.

The method according to claim 6,
The wash water filtration filter 250
A case 251;
A pair of left and right flanges 252 and 252a coupled to the right and left of the case 251;
A pair of right and left pipe connection ports 253 and 253a coupled to the left and right flanges 252 and 252a for connection and fixing to the discharge pipe 230;
A mesh net 254 provided on both sides inside the case 251; And
And a filter medium (255) filled in the case (251) in the mesh network (254).
An eco-friendly water circulation water treatment system that can utilize the purified water intake of underground facilities as public water and underground facility water.

8. The method of claim 7,
The filter media 255
And a fiber filter for filtering fine foreign substances remaining in the washing water
An eco-friendly water circulation water treatment system that can utilize the purified water intake of underground facilities as public water and underground facility water.

6. The method of claim 5,
The purification means of the purified water vehicle (200)
Further comprising an adjustment valve (260) for bypassing the wash water discharged from the discharge pipe (230) to a water tank (110) for supplying cleaning water for cleaning of the dredge vehicle (100)
And the adjustment valve 260 is connected to the water tank 110 by another discharge pipe 230A
An eco-friendly water circulation water treatment system that can utilize the purified water intake of underground facilities as public water and underground facility water.