KR100577535B1 - Equipment for purifying a pollutant with an early rain separating apparatus - Google Patents

Abstract

The present disclosure relates to a non-point pollutant treatment facility having an early storm separation apparatus capable of achieving optimal treatment efficiency while minimizing facilities by separating and purifying initial storms containing most non-point pollutants. The present invention relates to an excellent treatment tank which is provided with an inflow passage connected to a drainage passage to introduce an initial rainwater discharged into a drainage passage and perform filtration treatment; A water level meter for outputting a low water level signal and a high water level signal processed in the stormwater treatment tank; A first water gate installed on the side of the stormwater inlet of the stormwater treatment tank and opened according to the low water level signal of the water level meter and closed according to the high water level signal of the water level meter; A second sidewalk installed on a side of a drain port of the drainage passage adjacent to the stormwater inlet and closed according to a low level signal of the water level meter and opened according to a high water level signal of the water level meter; A screen provided on the side of the stormwater inlet in the stormwater treatment tank for separating the coarse material from the initial stormwater to be introduced and then filtering out the stormwater in the stormwater treatment tank; And a coarse material collector connected to the screen and collecting the coarse material separated by the screen.

Nonpoint pollutant, Nonpoint pollutant, Early storm,

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a non-point pollutant treatment facility having an early storm separation apparatus,

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A detailed description of embodiments of the present invention will be made with reference to the accompanying drawings, in which like numerals designate corresponding parts in the drawings.

1 is a top plan view of a non-point pollutant treatment facility having an initial storm water separating apparatus according to the present invention,

Fig. 2 is a sectional view taken along the line A-A in Fig. 1,

FIG. 3 is an enlarged partial detail view of the initial storm water separating apparatus portion shown in FIG. 1,

FIG. 4 is a partial detail view showing an embodiment of the hydrologic gate driving apparatus in FIG. 3,

FIG. 5 is a partial detail view showing another embodiment of the hydrologic gate driving apparatus in FIG.

DESCRIPTION OF REFERENCE NUMERALS

20, 30: water gate 22a, 22b, 32a, 32b: guide rail

40, 50: Hydrologic drive device 42, 52: Drive motor

44, 52: Pinion 46, 56: Rack

48, 58: idler roller 60: excellent treatment tank

70: Screen 80: Coarse material collector

90: Water gauge

The present invention relates to a facility for purifying non-point pollutants discharged from a nonpoint pollution source, and more particularly, to an apparatus and a method for separating and purifying an initial pollutant containing most nonpoint pollutants, And more particularly to a non-point pollutant treatment facility having an early storm water separating device.

In general, point pollution sources that discharge pollutants at certain points such as factories, sewage treatment plants, buildings, housing, etc. are easy to collect due to clear path of pollutants, and seasonal influences are relatively small. It is easy to design and maintain the treatment facilities such as drainage and treatment plants. On the other hand, non-point pollutants originating from non-point pollution sources such as cities, roads, farmland, mountainous areas, etc., which unintentionally discharge pollutants other than point pollution sources, It is very difficult to design and maintain the treatment facility because it is difficult to collect it, and the amount of discharge and the amount of discharge are greatly influenced by weather conditions such as precipitation.

The above point source and nonpoint source are relative concepts. For example, if a plant is taken as an example, the wastewater treatment facility of a factory that discharges factory wastewater collected through a drainage line through a facility is a point source and flows into the river The factory site such as a yard that discharges rainwater runoff is a nonpoint source.

Since non-point pollutants emitted from nonpoint pollutants flow into streams directly and pollute rivers, there is a high possibility of environmental problems as compared with point pollutants.

However, the government 's water management policies have been promoted mainly on point pollutants such as industrial wastewater and domestic sewage, which are easy to collect and have a high treatment efficiency because of the water quality improvement effect. As a result, water pollution caused by nonpoint pollutants reached 22 ~ 37% of total water pollutants at the time of comprehensive measures (1998 ~ 2000) due to increasing land use and continuously increasing impervious water layer.

In order to achieve the four-river water management goal of providing safe drinking water to the public, the government jointly organized a systematic comprehensive comprehensive non-point pollution management (4 major rivers non-point pollution management comprehensive measures; March 3, 2004) .

As a result, the development of nonpoint pollutant treatment facilities is expected to prosper. Until now, there is no formalized non-point pollutant treatment facility, and filtration equipment applied to water treatment technology is partially modified. That is, as a technique using a physical or chemical treatment apparatus to remove nonpoint pollutants contained in stormwater runoff, there are a screen apparatus, a filtration apparatus using sand or the like, or a commercialized product. Commercially available products include storm filters, stormceptors, stormgates, swirl concentrators / vortex solids separators, and oil-water separators. .

Since the non-point pollutants are mostly contained in the initial rainfall (initial rainfall of 5 mm), the initial rainfall is treated and discharged. However, in the above conventional facilities, the inflow channel is directly connected to the drainage channel, It is difficult to separate the initial storm. Therefore, it is difficult to control the non-point pollutant treatment facility as compared with the case where only the initial pollutant is separated and treated because most of the storm can be treated. Furthermore, since not only the early storm having a high concentration of pollutants but also a certain amount of pollutant after a certain period of time with a relatively low concentration of pollutants is introduced and purified, the efficiency of the treatment facility is lowered and the maintenance cost is increased.

Accordingly, it is an object of the present invention to solve the above-mentioned drawbacks, and it is an object of the present invention to provide an apparatus and a method for separating and purifying an initial storm containing most of non- And to provide a non-point pollutant treatment facility equipped with an initial storm separation device capable of reducing maintenance costs.

In order to accomplish the above object, according to the present invention, there is provided a non-point pollutant treatment facility having an initial runoff separation apparatus, comprising: an excellent treatment tank provided with an inflow passage connected to a drainage channel, A water level meter for outputting a low water level signal and a high water level signal processed in the stormwater treatment tank; A first water gate installed on the side of the stormwater inlet of the stormwater treatment tank and opened according to the low water level signal of the water level meter and closed according to the high water level signal of the water level meter; A second sidewalk installed on a side of a drain port of the drainage passage adjacent to the stormwater inlet and closed according to a low level signal of the water level meter and opened according to a high water level signal of the water level meter; A screen installed on the side of the stormwater inlet in the stormwater treatment tank for separating the coarse material from the incoming stormwater and discharging the initial stormwater to the stormwater treatment tank; And a coarse material collector connected to the screen and collecting coarse material separated by the screen.

In order to achieve the above object, a non-point pollutant treatment facility having an initial runoff separator according to the present invention comprises an inlet channel connected to a drainage channel, a filter medium disposed inside the drainage channel, ; A water level meter for outputting a low water level signal and a high water level signal processed in the stormwater treatment tank; And a first gear assembly installed on the side of the storm water inlet of the stormwater treatment tank for converting a rotational force of the first driving motor and a rotational force of the first driving motor into a linear force, The output shaft of the first driving motor rotates in the opposite direction and the first gear assembly is lowered by closing the first gear assembly in accordance with the high water level signal of the water level gauge, ; And a second gear assembly installed on a side of a drain port of the drainage passage adjacent to the storm water inlet for converting the rotational force of the second drive motor and the rotational force of the second drive motor into a linear force, The output shaft of the drive motor is rotated in one direction to close the second gear assembly and the output shaft of the second drive motor rotates in the opposite direction in accordance with the high water level signal of the water level gauge, 2 hydrology; A screen installed on the side of the stormwater inlet in the stormwater treatment tank for separating the coarse material from the incoming stormwater and supplying the initial stormwater to the filter medium of the stormwater treatment tank; And a coarse material collector connected to the screen and collecting coarse material separated by the screen.

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

FIG. 1 is a top plan view of a non-point pollutant treatment facility having an initial storm water separating apparatus according to the present invention, and FIG. 2 is a sectional view taken along line A-A of FIG. 3 is an enlarged partial detail view of the initial storm water separating apparatus portion shown in Fig.

The non-point pollutant treatment facility of the present invention comprises an inlet passage connected to the drainage passage 10 and a first gate 20 disposed on the inlet passage 10 and a second gate 10 on the outlet side of the drainage passage 10 adjacent to the inlet passage. 30) is installed. When the first and second sidewalls 20 and 20 are opened, the other is closed. For example, when the storm water flows to the drainage line 10, the first gate 20 is closed and the second gate 30 is opened. In this state, when the initial storm is to be treated, the closed first siphon door 20 is opened and the opened second siphon door 30 is closed to flow the stormwater from the siphon 10 to the treatment facility.

The first and second sidewalls 20 and 30 are automatically opened and closed in the manner described above. To this end, the first and second sideways 20 and 30 are provided with hydrologic drive devices 40 and 50, Lt; / RTI > The first and second hydrometric driving devices 40 and 50 may be constructed of an electronic type or a buoyant type. In the electronic type, a motor drive system or a common pressure cylinder drive system can be employed. This portion will be described in more detail with reference to FIGS. 4 and 5. FIG. In the case of the buoyancy type, a floater may be installed in the treatment tank to flood the first and second water gates 20 and 30 when the water level is higher than a certain level. For example, when the float is connected to the first floodgate and the second floodgate, the first floodgate 20 is pulled downward (downward direction) to close the second floodgate 30 and the second floodgate 30 is moved upward (upward) So as to be opened. Further, guide rails 22a, 22b, 32a, and 32b are provided on the inner walls of structures (drainage and treatment facilities) closely contacting both sides of the first and second sluices 20 and 30, So as to stably operate the lifting and lowering operation.

The initial storm that has flowed into the treatment facility through the drainage line 10 through the first gate 20 reaches the screen 70 provided on the inflow passage side of the stormwater treatment tank 60. The screen 70 has walls of constant height on both sides thereof, and small holes 72 are drilled on the bottom thereof to filter the coarse material. That is, only the rain falls out through the small holes 72 of the screen 70, and the coarse material contained in the rain remains on the screen 70. The coarse material screened by the screen 70 moves naturally along the inclination of the screen 70 to the coarse material collector 80 connected to the screen 70 ). ≪ / RTI > The coarse material collector 80 surrounds the remaining edges of the coarse material collector 80 except for the portion connected to the screen 70 and is provided with a storage space in which the screen is connected to the screen 70. The coarse material collector 80 is preferably made of a mesh having a certain size of eyes. The coarse material thus collected in the coarse material collector 80 is removed by manpower at an appropriate time after use of the treatment facility. The term 'coarse material' as described above collectively refers to materials such as leaf litter, miscellaneous trash, etc. that come in with the storm. The above-described screen 70 may be implemented by a wire mesh structure of small eyes in addition to a structure in which small holes 72 are formed in the bottom thereof.

The present invention also includes a water level meter 90 for sensing the level of the treated rainwater in the stormwater treatment tank (60). The water level meter 90 outputs a high level signal and a low level signal. The first and second hydrologic gate driving apparatuses 40 and 50 of the first and second gates 20 and 30 operate according to the level signal. That is, when the high-level signal is output, the first hydromotor drive device 40 closes the first hydrant 20, and the second hydrological operation device 50 opens the second hydrant 30, I will just flow away. On the other hand, when the low-level signal is outputted, the first hydromotor drive device 40 opens the first hydrant 20 and the second hydrant drive device 50 closes the second hydrant 30, Respectively. As a result, before the rain comes, the water level is in a low level state. When the processing facility is operated due to rain, the water level meter 90 outputs a low level signal so that the first and second hydrologic driving devices 40, When an excellent amount corresponding to the initial rainfall is filled in the stormwater treatment tank 60, a high-level signal is output, and the rainfall flows to the drainage line 10. In the above, the high water level signal of the water level meter 90 is outputted in a quantity corresponding to the amount of the initial rainwater, and thus, by functioning as a device for separating the initial rainwater from the hydrants, Is introduced into the treatment facility and processed.

The superior treatment tank 60 is laminated with a sand layer 62, a small gravel layer 64 and a large gravel layer 66 in order from the top, and filtrates the storm. The fine filter medium of the stormwater treatment tank 60 is located below the screen 70 and the fine contaminants contained in the storm that have passed through the small holes 72 of the screen 70 on the screen 70 are collected in the stormwater treatment tank 60, So that clean sewage only reaches the large gravel layer 66 through the small gravel layer 64. [ A discharge pipe (68) is installed in the large gravel layer (66) to discharge the purified water treated in the stormwater treatment tank (60) to the outside. An inflow hole 68a is formed in the surface of the discharge pipe 68 located on the side of the surface treatment tank 60 so that the rainwater of the surface treatment tank 60 flows into the discharge pipe 68 and is discharged to the outside. However, as in the present embodiment, the purified water in the stormwater treatment tank 60 is not directly discharged to the outside through the discharge pipe 68, but a separate water storage tank 100 is provided to separate the treated water in the stormwater treatment tank 60 By discharging the water through the water storage tank 100, water can be efficiently controlled and managed. For this, an automatic opening / closing valve 104 may be installed in the water pipe 102 of the water storage tank 100 to control the discharge of the water in the water storage tank 100. It is preferable that a separate automatic opening and closing valve 104 installation space 106 is provided in the water storage tank 100 and an automatic opening and closing valve 104 is installed in the installation space 106, It is possible to facilitate maintenance and to prevent corrosion due to rain. Of course, the installation space 106 of the automatic opening / closing valve 104 is designed so as to be hermetic so as to prevent the water level of the water storage tank 100 from permeating. The water level meter 90 described above can be installed not only in the stormwater treatment tank 60 but also in the water storage tank 100. In this embodiment, the water level meter 90 is provided in the water storage tank 100 as an example. The automatic opening / closing valve 104 is automatically opened after a predetermined time (for example, 12 hours) when the water level meter 90 sends out a high water level signal to discharge the purified water in the water storage tank 100 to the outside. The water level in the water storage tank 100 is automatically controlled when the water level signal is transmitted from the water level meter 90 after the water level is discharged. In addition, the water storage tank 100 is provided with the overflow water outlet 108 at a height slightly exceeding the full water level, and is designed to be discharged when the water level of the water storage tank 100 exceeds the full water level.

Fig. 4 is a partial detail view showing an embodiment of a hydrometric driving apparatus in Fig. 3;

The hydrographic driving devices 40 and 50 have driving motors 42 and 52 fixed to a structure (not shown). The drive motors 42 and 52 may be constructed of a deceleration motor having a built-in speed reducer in order to exert a large force when the water gate is large and heavy, provided in a place where the processing capacity of the rainfall is large, It is possible. The rotational force is converted into a straight force (vertical acceleration / deceleration) to the output shaft of the drive motors 42 and 52 and coupled to the gear assemblies for transferring the rotational force to the water gates 20 and 30 to raise or lower the water gates 20 and 30, And performs an operation.

The gear assembly includes pinions 44 and 54 coupled to the output shaft of the drive motors 42 and 52 and racks 44 and 54 for converting the rotational force of the pinions 44 and 54 into a linear force. 46, 56). The racks 46 and 56 are installed in the vertical direction, and the water doors 20 and 30 are coupled to the lower ends thereof. Further, the opposite surface of the rack surfaces of the racks 46 and 56 to which the pinions 44 and 54 are mated is usually formed into a flat surface. In order to induce a stable linear movement of the racks 46 and 56, It is preferable to additionally provide idler rollers 48 and 58 which are brought into close contact with the guide rollers.

The hydraulically operated devices 40 and 50 are configured by such a simple structure so that the pinions 44 and 54 are rotated in accordance with the rotation of the drive motors 42 and 52, So that the lifting and lowering of the water gates 20 and 30 coupled to the lower ends of the racks 46 and 56 is carried out. Of course, the rising (opening) and falling (closing) of the water gates 20 and 30 are controlled by changing the rotating direction of the driving motors 42 and 52, and are operated based on the water level signal detected in the above- .

Fig. 5 is a partial detail view showing another embodiment of the hydrologic gate driving apparatus in Fig. 3, and the present embodiment illustrates a configuration in which a common pressure cylinder system is applied to the hydromotor driving apparatus.

The hydrological drive units 40a and 50a are constituted by vertically fixing the common pressure cylinders 42a and 52a to the structure and fixing the ends of the cylinder rods 44a and 54a to the hydrants 20a and 30a as shown in the figure. When the rods 44a and 54a are contracted by the operation of the common pressure cylinders 42a and 52a, the floodgates 20a and 30a rise and open. When the rods 44a and 54a expand, the floodgates 20a and 30a descend . Of course, in the case of using the common pressure cylinders 42a and 52a, the common pressure tanks 46a and 56a for providing a common pressure to the cylinders 42a and 52a must be additionally provided, and the common pressure tanks 46a and 56a Is controlled according to the level signal of the water level meter described above.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to be illustrative of the present invention and not to limit the invention to the particular forms disclosed. Various changes and modifications may be made without departing from the technical spirit of the present invention, and other equivalent embodiments are possible.

INDUSTRIAL APPLICABILITY As described above, the apparatus for treating non-point pollutants with an early stage rainwater separating apparatus according to the present invention can separate and purify only initial rainwater containing most nonpoint pollutants during rainfall. Accordingly, the present invention has the advantage of maximizing the processing efficiency while minimizing the facility by separating and processing only the initial quality. In addition, since the facility can be minimized, not only the construction cost can be reduced but also the maintenance is easy and the maintenance cost is reduced. Furthermore, since the water gate is automatically opened and closed according to the initial water amount, the non-point pollutant can be quickly treated in response to the rain.

Claims (9)

delete delete delete delete An excellent treatment tank for forming an inflow passage connected to a drainage passage and having a filter medium therein, for introducing an initial rainwater discharged into the drainage passage and filtering the inflow passage; A water level meter for outputting a high level signal and a high level signal corresponding to an initial water level treated in the stormwater treatment tank; And a first gear assembly installed on the side of the storm water inlet of the stormwater treatment tank for converting a rotational force of the first driving motor and a rotational force of the first driving motor into a linear force, A first water gate which is opened by raising the first gear assembly and rotates in one direction, the output shaft of the first drive motor is rotated in the opposite direction according to the water level signal of the water level meter, and the first gear assembly is lowered and closed; And a second gear assembly installed on a side of a drain port of the drainage passage adjacent to the storm water inlet for converting the rotational force of the second drive motor and the rotational force of the second drive motor into a linear force, The output shaft of the drive motor is rotated in one direction to close the second gear assembly and the output shaft of the second drive motor rotates in the opposite direction in accordance with the high water level signal of the water level gauge, 2 hydrology; The bottom of the abattoir treatment tank is provided with a slope downwardly toward the inside of the abattoir treatment tank, and both side walls and small holes are made of a perforated bottom so that the infiltrated initial soot passes through the small holes of the bottom A screen for separating the coarse material and supplying the passed storm to the filter material of the stormwater treatment tank; And A wall connected to the screen and having walls at a predetermined height enclosing other edges except for the portion connected to the screen and having a storage space connected to the screen, And a coarse material collector for collecting the material, A water tank connected to the discharge pipe of the stormwater treatment tank for temporarily storing the stormwater purified in the stormwater treatment tank is provided and an automatic opening and closing valve is provided in a drain pipe of the water storage tank, The valve is automatically opened to discharge the rainwater in the water tank to the outside, and when the low-level signal is transmitted from the water level meter after discharging the rainwater in the water storage tank, the automatic opening / closing valve is closed to automatically control the rainwater in the water storage tank A non-point pollutant treatment facility having an initial storm separation unit. 6. The apparatus according to claim 5, wherein the gear assembly comprises a pinion connected to an output shaft of the drive motor, and a rack coupled to the gate and engaged with the pinion to convert the rotational force into a linear force, A nonpoint pollutant treatment facility with an initial stormwater separator. 7. The non-point pollutant treatment facility as set forth in claim 6, wherein an idler roller is provided for guiding and supporting the opposite plane of the rack with the pinion engaged therewith. [7] The sewage treatment system of claim 7, wherein the stormwater treatment tank is stacked with a sand layer for filtering fine contaminants in the stormwater, a small gravel layer for supporting the sand layer and a large gravel layer, Wherein the large gravel layer is provided with the discharge pipe for discharging the filtered storm to the outside. delete

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