KR100443420B1 - Apparatus for removal of non-point source - Google Patents

Abstract

PURPOSE: A non-point pollution source removal device is provided to simply and effectively separate and remove non-point pollution sources flowing into rivers or lakes and marshes when rain falls and to reduce water pollution. CONSTITUTION: A non-point pollution source removal device comprises a diaphragm(4) arranged between an inlet pipe(2) and an outlet pipe(10) of a manhole(1) and mounted to the wall in which the outlet is laid in a state of having the bottom opened, to prevent non-point pollution sources flowing through the inlet pipe and inlets(3) from being directly discharged through the outlet pipe and to separate pollutants; an air vent(5) arranged to the upper part of the diaphragm in a standing-up state to prevent disturbance of the flowing of a fluid discharged to the outlet pipe; a floating-type absorbing pad(6) supported by the air vent to remove pollutants the specific gravity of which is lighter than water; an underwater-type absorbing pad holder(8) arranged to the lower end of the diaphragm; an underwater-type absorbing pad(7) fitted to the underwater-type absorbing pad and arranged under the diaphragm to remove pollutants the specific gravity of which is heavier than water; and a cover(9) detachably mounted to a diaphragm hole formed in the diaphragm to open and shut for cleaning of the outlet pipe or maintenance.

Description

Non-point source removal device {APPARATUS FOR REMOVAL OF NON-POINT SOURCE}

The present invention relates to a non-point source removal device for separating and removing contaminants introduced into the manhole, and more specifically, floating materials generated by rainfall and contaminants such as earth and sand, etc. The present invention relates to a device capable of reducing contamination of a river or a lake by a nonpoint source by installing a diaphragm in a manhole to prevent direct discharge into a manhole, and installing a suction pad to effectively remove floating or dissolved pollutants.

Non-point sources are pollutants generated through unspecified discharge paths without having specific discharge paths, and are mainly discharged along with surface runoff when it rains and discharged to rivers, thus adversely affecting water pollution.

When it rains, inflows including suspended materials, soils, and pollutants flow into manholes and inlets in areas such as roads, parking lots, malls, residential complexes, and industrial complexes. At this time, soil and contaminants having a greater specific gravity than water are settled in the lower part of the manhole, and floating substances, oil and grease, which are lighter than water, float above the water surface. As it flows, it flows directly to a stream or an appeal through an outflow pipe, which worsens the water quality.

In general, the methods used for the removal of nonpoint source are the storage type (reservoir tank, pond, artificial wetland), infiltration type (penetration tank, infiltration ditch, pore packing), vegetation type (vegetable filtration unit, vegetation channel), device type ( Storm filters, sand filters, storm acceptors, storm gates, etc.), and economic problems such as the need for new treatment sites and expensive equipment to be installed to remove pollutants caused by rainfall using the above facilities. There is this.

That is, in the case of the storage type, a relatively large amount of land is required, so it is difficult to install due to the rise of land prices in developed areas, and in the summer, pests such as mosquitoes and flies are generated, causing health problems. Due to the continuous inflow of pollutants and contaminants, it is difficult to maintain due to clogging of air gaps, and the groundwater contamination is high due to the penetration into the basement, and the vegetation type requires more than a certain amount of land and the vegetation is maintained. Ideal environmental conditions are required, and the device type has problems such as high installation cost and limited installation location.

In particular, in Korea, rapid development of cities, roads, factories, etc., does not remove pollutants caused by rainfall and flows directly into rivers or lakes, resulting in the death of aquatic plants and intensifying water pollution. There is a difficulty in applying the technique.

Accordingly, the present inventors have developed a device capable of effectively separating and removing contaminants by installing a diaphragm and an adsorption pad in an existing manhole or a new manhole without installing expensive equipment on a separate site for removing a nonpoint source.

The non-point source removal apparatus of the present invention aims to reduce water pollution by simply and effectively separating and removing the non-point source introduced into a river or lake during rainfall.

In addition, the non-point source removal device of the present invention is another object to provide a non-point source removal device that can be easily installed in the existing or new manholes and is easy to maintain without the installation of additional treatment sites or expensive facilities in the previously developed areas.

1 is a cross-sectional view of a non-point source removal apparatus of the present invention installed in a manhole.

2 is a front view of a state in which a non-point source removal device of the present invention is installed in a manhole;

3 is a detailed cross-sectional view of the diaphragm.

Figure 4 is a detailed view of the floating adsorption pad.

5 is a detailed view of the underwater adsorption pad.

6 is a detail view of the cover.

7 and 8 show examples of specifications of the device of the present invention;

<Explanation of symbols for the main parts of the drawings>

1: manhole 2: inlet pipe

3: inlet 4: diaphragm

5: air outlet 6: floating suction pad

7: Underwater type suction pad 8: Underwater type suction pad hanger

9: cover 10: outflow pipe

In order to achieve the above object, the non-point source removal apparatus of the present invention, in the non-point source removal apparatus for removing the non-point source and the like introduced into the manhole (1) through the inlet pipe 2 and the inlet (3), the inflow Located between the pipe (2) and the outflow pipe 10, the outlet pipe 10 is mounted on the side wall in which the bottom is open spaced apart, non-point source, etc. directly through the outflow pipe (10) A diaphragm 4 for preventing discharge and separating contaminants; and an air outlet 5 standing upright on the diaphragm to prevent a fluid flow interruption discharged into the outlet pipe; and supported by the air outlet A floating adsorption pad (6) which is maintained to remove contaminants that are lighter in weight than water; and an underwater adsorption pad hanger (8) located at the lower end of the diaphragm; Located under the diaphragm, specific gravity over water Medium suction pads can for removing heavy contaminants (7); And a cover 9 detachable to a diaphragm hole formed in the diaphragm so as to be opened and closed for cleaning or maintenance management of the outflow pipe.

Hereinafter, with reference to the accompanying drawings will be described in detail the non-point source removal apparatus of the present invention.

1 is a cross-sectional view of the non-point source removal device of the present invention installed in the manhole, FIG. 2 is a front view of the non-point source removal device of the present invention installed in the manhole, FIG. 3 is a detailed cross-sectional view of the diaphragm, FIG. 5 is a detailed view of the submersible suction pad, FIG. 6 is a detailed view of the lid, and FIGS. 7 and 8 are examples showing standard examples of the apparatus of the present invention.

As shown in FIG. 1, a diaphragm 4 of a predetermined size is positioned between the inlet pipe 2 and the outlet pipe 10 of the manhole 1, on the side wall where the outlet pipe 10 is embedded. It is mounted spaced apart with the bottom open.

The diaphragm 4 separates contaminants by preventing the contaminants introduced from the inlet pipes from being directly discharged to the outlet pipes.

The air outlet 5 is positioned in an upright position on the diaphragm 4. This is to prevent the obstruction of fluid flow by increasing the air pressure in the diaphragm when the contaminants are separated by the diaphragm 4 and the fluid is discharged to the outlet pipe 10. The air outlet may be fixedly coupled to the upper portion of the diaphragm by conventional fixing means, and may also be manufactured integrally with the diaphragm.

The floating suction pad 6 is supported by the air outlet 5 and floats on the water surface. This adsorbs and removes oil and grease that are lighter in weight than water.

An example of a floating suction pad used in the present invention is shown in FIG. 4, which forms a cylindrical shape that is long in the longitudinal direction.

The floating suction pad is connected to and supported by the air outlet by a connecting means such as a wire or a string.

At least one hook-shaped underwater suction pad hanger 8 is attached to the lower end of the diaphragm 4 by a conventional method.

An underwater suction pad 7 is caught below the underwater suction pad hanger 8 and is located below the diaphragm. The submersible adsorption pad 7 not only adsorbs pollutants with a specific gravity greater than water, but also adsorbs and removes organic matter and heavy metals accumulated in the lower part of the manhole during rain.

5 shows an example of an underwater adsorption pad used in the present invention, which forms a cylindrical shape that is long in the longitudinal direction.

In the present invention, since the diaphragm 4 is installed below the height of the inflow pipe 2 and the outflow pipe 10, oil, grease, suspended solids, etc. of the surface of the water in the manhole are discharged even after the rainfall or the rain stops. Without being adsorbed to the floating suction pad 6.

In order to increase the efficiency of pollutant adsorption and removal, the floating adsorption pad and the underwater adsorption pad are provided with a material having excellent adsorption.

The floating adsorption pad 6 used in the present invention is made of a mixture composed of polypropylene, expandable perlite and activated carbon.

Polypropylene is a hydrophobic, lipophilic material, and its oil absorption power is more than tens of its own weight, and pearlite is an ultra-light polyhedral white particle made by expanding the volume of pearlite, a natural mineral produced by volcanic activity, several times. This is excellent, and activated carbon is also excellent in adsorption.

The floating adsorption pad 6 is preferably made of a mixture consisting of polypropylene 60 ~ 80wt%, pearlite 10 ~ 20wt% and activated carbon 10 ~ 20wt%.

The underwater suction pad 7 is manufactured by putting a mixture of zeolite and activated carbon in a mesh case made of polyethylene or fiberglass reinforced plastics (FRP).

Zeolite is a modified tuff and it is a natural mineral with cation exchange function such as aluminum silicate. It has excellent effect on adsorption of heavy metals and removal of ammonia and nitrogen in water.

In particular, the underwater adsorption pad is separated by the non-point source removal device of the present invention even after the rainfall is finished to adsorb and remove the contaminants deposited in the lower manhole and heavy metals and organic contaminants in the water.

The underwater adsorption pad 7 is preferably a mixture consisting of 40 ~ 60wt% zeolite and 40 ~ 60wt% activated carbon.

The floating suction pad 6 can be separated from the air outlet 5 being supported, so that the floating suction pad can be removed and replaced.

In addition, the submersible adsorption pad can also be separated from the submersible adsorption pad hanger 8 so that the submersible adsorption pad can be removed and replaced.

The floating and underwater suction pads can be replaced at the same time when the manhole is regularly cleaned or managed, which is convenient and economical.

Meanwhile, a diaphragm hole is formed at a predetermined position of the diaphragm 4, and a cover 9 is detachably coupled to the diaphragm hole. The cover 9 is turned to the left and right and is useful when cleaning or maintaining the outflow pipe 10.

The diaphragm 4, the air outlet 5, the submersible adsorption pad hanger 8 and the cover 9 are made of polyethylene, reinforced plastic, or stainless steel.

Non-point source removal apparatus of the present invention can be changed in the standard, shape or number depending on the installation location and conditions. In addition, the size of the diaphragm and the adsorption pad used in the present invention may be variously adjusted based on the inner diameter (D) of the outlet pipe (10).

Preferred examples of the specification of the present invention are as follows.

The diaphragm 4 used in the present invention has a width of 1: 1.5 to 2.0, a width of 1: 1.75 to 2.5, and a distance from the side wall of the outlet pipe is 1: 0.3 compared to the inside diameter of the outlet pipe 10. ~ 1.0.

The air outlet 5 used in the present invention has a length of 1: 0.5 to 1, and a diameter of 1 to 4 cm compared to the inner diameter of the outlet pipe 10.

Underwater type adsorption pad hanger 8 used in the present invention has a hook shape and has a length of 3 to 5 cm.

Cover 9 is coupled to the diaphragm hole used in the present invention has a diameter of 1: 0.5 ~ 1.5 compared to the inner diameter of the outlet pipe (10).

The length of the floating adsorption pad 6 used in the present invention is 1: 1 to 2, and the diameter is 5 to 20 cm, compared to the inner diameter of the outlet pipe 10.

The length of the submersible adsorption pad 7 used in the present invention is 1: 1.5 to 2.0, the diameter is 3 to 10 cm compared to the inner diameter of the outlet pipe 10.

The non-point source removal apparatus of the present invention can be used by being installed in series or parallel to the manhole continuously.

The above-described standard example is a preferable standard example of the present invention, and the scope of application of the present invention is not limited to the above, and various modifications can be made within the scope of the same idea.

Accordingly, each component, shape and structure shown in the embodiments of the present invention can be modified and carried out, and such modifications will belong to the claims of the present invention.

As described above, the non-point source removal device of the present invention can be easily installed in an existing or newly established manhole without additional treatment site and expensive facilities in a pre-developed area such as a parking lot, a shopping mall, a housing complex, an industrial complex, etc. As it separates and removes suspended solids, soil, and pollutants, it not only reduces the pollution of rivers or lakes, but also easily and economically maintains and replaces the pads at the time of regular manhole management.

Claims (7)

Located between the inlet pipe 2 and the outlet pipe 10 of the manhole (1), the outlet pipe 10 is mounted on the side wall with the bottom open to be embedded, through the inlet pipe and the inlet A diaphragm 4 which prevents the introduced non-point source from being discharged through the outlet pipe 10 and separates contaminants; An air outlet 5 positioned in an upright position in the upper portion of the diaphragm to prevent a fluid flow obstruction discharged to the outlet pipe; and Suspended adsorption pad (6) to be supported by the air outlet to remove the contaminants lighter than water specific gravity; and Underwater suction pad hanger (8) located at the lower end of the diaphragm; And An underwater adsorption pad (7) which is caught under the diaphragm adsorption pad hanger (8) to remove contaminants having a higher specific gravity than water; And And a cover (9) detachable from the diaphragm hole formed in the diaphragm to open and close the outlet pipe for cleaning or maintenance. The method of claim 1, The diaphragm (4), the air outlet (5), the submersible adsorption pad hanger (8) and the cover (9) is non-point source removal apparatus, characterized in that made of any one of polyethylene, reinforced plastic or stainless steel. The method of claim 1, The diaphragm 4 has a horizontal width of 1: 1.5 to 2.0, a vertical width of 1: 1.75 to 2.5, and a distance from the side wall of the outlet pipe is 1: 0.3 to 1.0 ego, The air outlet 5, the length of the outlet pipe 10 compared to the inner diameter is 1: 0.5 to 1, the diameter is 1 to 4 cm, The underwater suction pad hanger 8 is hook-shaped, the length is 3 ~ 5 cm, The cover (9), non-point source removal apparatus, characterized in that the diameter of the outlet pipe 10 is 1: 0.5 ~ 1.5. The method of claim 1, The floating adsorption pad 6 is made of a mixture consisting of 60 ~ 80wt% polypropylene, 10 ~ 20wt% perlite and 10 ~ 20wt% activated carbon, the length is 1: 1 ~ 2 compared to the inner diameter of the outlet pipe (10) And, the diameter of the non-point source removal device, characterized in that 5 ~ 20 cm. The method of claim 1, The submersible adsorption pad 7 is manufactured by putting a mixture of 40 to 60 wt% zeolite and 40 to 60 wt% activated carbon in a mesh case made of polyethylene or reinforced plastic, and the length is 1: 1.5 compared to the inner diameter of the outlet pipe 10. ~ 2.0, non-point source removal apparatus characterized in that the diameter is 3 ~ 10 cm. The method of claim 1, The cover (9) is non-point source removal apparatus, characterized in that the opening and closing to the left and right. The method of claim 1, Non-point source removal device characterized in that the non-point source removal device is installed connected in series or parallel to the manhole continuously.