KR100594888B1 - An installation for leatchate treatment - Google Patents

Abstract

The present invention relates to a leachate purification apparatus of a landfill, and more particularly, to improve the water removal efficiency by improving the ability to remove contaminants contained in the leachate generated from landfills, to solve the difficulty in securing the water treatment site area, and purification The treated water is to provide a leachate purification apparatus for landfills that has been improved for recycling.

To this end, the present invention is a contaminant of the leachate (10) supplied through the leachate transport pipe 20 and the leachate transport pipe 20 provided with a pump so that the leachate (10) generated in the landfill transfer to a predetermined position A filter 30 for purifying water and activated carbon 40 embedded therein, the first purifying body 50 for first purifying contaminants of the leachate, and the first purifying body 50 disposed on one side of the first purifying body 50 to be planted therein. The second purified body 70 for once again purifying the first purified leachate from the first purification body 50 using the purified water plant 60, and the leachate purified from the second purification body 70 It characterized in that the configuration further comprises a control valve 80 for controlling the discharge pipe 81 for transporting the discharge to the outside.

Garbage, Landfill, Leachate, Purification, Aquatic Plants, Activated Carbon, Filters

Description

Leachate Treatment System of Landfill

1 is an exemplary view of a leachate purification apparatus of a landfill according to the present invention,

Figure 2 is an exploded perspective view for explaining the configuration of the leachate purification apparatus of the landfill according to the invention,

3 is an assembled cross-sectional view of a leachate purification apparatus of a landfill according to the present invention;

4 is an exemplary view showing the internal structure of the first purifying body in the leachate purification apparatus of a landfill according to the present invention;

5 is a reference diagram showing that the leachate is purified using the leachate purification apparatus of another landfill in the present invention.

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

10: leachate 20: leachate transport pipe

30: filter 40: activated carbon

50: first purifying body 51: main body

53: leachate discharge portion 54: reservoir assembly member

55: leaching canister 57: pedestal

58: fixed block 59: spring

60: water-purifying aquatic plant 70: second purified body

80: control valve 81: discharge pipe

511: leachate inlet hole 531: discharge hole

541,542: Longevity 544: Drainage

551: freshwater space 553: discharge pipe

553a: vent hole

The present invention relates to a leachate purification apparatus of a landfill, and more particularly, to improve the water removal efficiency by improving the ability to remove contaminants contained in the leachate generated from landfills, to solve the difficulty in securing the water treatment site area, and purification The treated water is to provide a leachate purification apparatus for landfills that has been improved for recycling.

Recently, a large amount of pollutants such as industrial waste and household waste are incinerated or disposed of in landfills.

However, the landfilled waste or waste generates leachate by rainwater and contaminates groundwater and surface water.

Like this, the leachate generated from domestic waste landfills varies in water quality and quantity depending on many environmental variables such as landfill type, landfill waste, landfill period, landfill type, landfill method, rainfall, climatic conditions, and waste compaction. As a result, the quality of leachate is becoming more diverse and complex due to the landfill of new waste containing new synthetic materials due to the development of standard of living and industrial technology.

Most of the organic materials contained in the initial leachate are in the form of FVFA (Free Volatile Fatty Acids), and as the elapsed time of landfill, the FVFA content is reduced and Fulvic-Like Material, ie Carboxyl Group, Aromatic Hydroxyl Group, etc. Will increase. Nitrogen, which causes difficulty in leachate treatment with hardly degradable organic materials such as vulvic-like materials, tends to increase more than five times when the landfill time has elapsed from about 5 to 6 years, and the concentration range is usually It appears to vary from 300 to 4,000 mgN / l.

To this end, in order to treat only organic substances such as BOD and COD, most of the biological treatment using only activated sludge is performed, so that nitrogen contained in a high concentration in leachate is hardly treated.

Furthermore, the nitrogen contained in the leachate is usually contained in high concentrations of more than 1,000 mgN / l, which makes the titration process very difficult. Biodegradable organic nitrogen during the residence period in landfills is mostly ammonized but remains Organic nitrogen is discharged as it is without being decomposed and removed in the leachate treatment process. In order to properly treat high concentration of nitrogen, biological nitrogen and physical and chemical treatment methods are appropriately combined.

Biological treatment mainly uses microorganisms to decompose and detox contaminants in wastewater, such as activated sludge method, contact aeration method, rotary disc method, and anaerobic treatment method. However, the biological treatment method requires a lot of sites to treat the high concentration of leachate containing toxic substances, there is a problem that the nitrogen removal rate is low.

Physical and chemical leachate treatment methods include flocculation sedimentation, ozone oxidation, sand filtration, activated carbon adsorption, fenton oxidation and separation membrane. Among them, the flocculation sedimentation method and the phenton oxidation method are widely used, but the chemical cost is high, and there is a drawback that a lot of sludge occurs. The reverse osmosis method is also widely used, but fouling phenomenon that contaminants adhere to the membrane becomes a problem.

As described above, the combination of biological methods and physical and chemical methods are most common, but there are various problems such as high processing efficiency, complicated process, and high cost.

Therefore, the present invention is a landfill leachate discharge area, sewage treatment, sewage treatment plant treated water discharge, domestic sewage discharge, reclaimed sewage water for the reuse, polluted rivers, and other artificial wetlands or lakes for the purpose of removing water pollution The purpose is to provide a leachate purification apparatus of landfills that can contribute to increase the transparency of water quality by efficiently removing the water pollution source within a short time.

In order to achieve the above object, the leachate purification apparatus of a landfill of the present invention includes a leachate transport pipe 20 provided with a pump so as to transfer and supply the leachate 10 generated in the landfill to a predetermined position, and the leachate transport pipe 20 A first purifier 50 for purifying contaminants in the leachate having a filter 30 and activated carbon 40 to purify the pollutants in the leachate 10 supplied through the first purification body and A second purifying body 70 which once again purifies the leachate firstly purified from the first purifying body 50 by using the purified aquatic plant 60 which is laid on one side of 50), And a control valve 80 for controlling the discharge pipe 81 for discharging and transporting the leachate purified by the second purifying body 70 to the outside.

The first purifying body 50 has a main body 51 formed of a sealed enclosure in which all surfaces except for the leachate inlet 511 into which leachate flows are introduced, and a freshwater space 551 for storing the leachate 10. The leachate can 55 is assembled to the inside of the main body 51 to store the leachate 10 that has passed through the filter 30, the pedestal 57 is assembled to the lower side of the leachate 55, and A spring 59 installed at the lower side of the pedestal 57 to move the leachate bucket 55 up and down to automatically control the discharge pipe 553 of the leachate bucket 55, and the spring 59 to be seated. Provided is a leachate purification apparatus of a landfill consisting of fixed blocks 58 fixed to the bottom of the main body 51.

The main body 51 is formed with a leachate discharge part 53 provided with a discharge hole 531 to discharge the leachate 10, the inner surface coupling of the main body 51 is formed with the leachate discharge part 53 The storage tank assembly member 54 is fitted so that the leaching canister 55 is fitted through one side opening of the long holes 541 and 542 installed in the longitudinal direction, and perpendicular to the surface on which the long holes 541 and 542 are installed. A drainage hole 544 communicating with the leachate drainage part 53 is provided on the surface thereof so that the discharge pipe 553 of the leachate bucket 55 is positioned between the drainage hole 544 and the leachate discharger 53. According to the amount (weight) of the leachate flowing into the 55, the leachate is discharged only when the drain hole 544, the leachate discharge part 53, and the discharge hole 553a of the discharge pipe 553 are located on the same line. The leachate purification apparatus of the landfill site, characterized in that configured to automatically discharge to the purification body 70 Ball.

Hereinafter, the configuration and effect of the leachate purification apparatus of a landfill according to a specific embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view illustrating a leachate purification apparatus of a landfill according to the present invention, and FIG. 2 is an exploded perspective view illustrating a configuration of a leachate purification apparatus of a landfill according to the present invention, and FIG. 4 is an sectional view of an assembly of a leachate purification apparatus of a landfill, and FIG. 4 is an exemplary view illustrating an internal structure of a first purifying body in the leachate purification apparatus of a landfill according to the present invention, and FIG. It is a reference diagram showing that the leachate is purified using a purification device.

As shown in the accompanying drawings, the leachate purification apparatus of the landfill of the present invention is a leachate transfer pipe 20 provided with a pump to transfer the leachate 10 generated in the landfill to a predetermined position, and the leachate transfer pipe 20 First filter 50 for purifying the contaminants of the leachate 10 and the activated carbon 40 is supplied through the first purifying body 50 to purify the pollutants of the leachate 10 and the first purifying body 50 A second purifying body 70 which once again purifies the leachate firstly purified from the first purifying body 50 by using the water-based aquatic plant 60 which is laid on one side of the) and planted inside thereof, It further comprises a control valve 80 for controlling the discharge pipe 81 for discharging and transporting the leachate purified by the two purifying body 70 to the outside.

As shown in FIGS. 2 to 4, the first purifying body 50 includes a main body 51 and a leachate 10 formed of a hermetically sealed enclosure except for the leachate inlet 511 through which leachate flows. A freshwater space 551 is provided to store the leachate bucket 55 is assembled to the inside of the main body 51 to store the leachate 10 through the filter 30, and assembled to the lower side of the leachate bucket 55 A pedestal 57 and a spring 59 provided at a lower side of the pedestal 57 to vertically move the leach bucket 55 so as to automatically control the discharge pipe 553 of the leach bucket 55; It includes a fixing block 58 is fixed to the bottom of the main body 51 so that the spring 59 is seated.

The main body 51 is formed of a housing having all the surfaces except for the leachate inlet hole 511 formed on the upper surface, and having a door 510 installed on one side thereof, and having a predetermined height on the inner surface thereof. A fixed filter fixing part 512 is installed to remove and mount the filter 30 to the filter fixing part 512.

In the center of one side of the main body 51, a leachate discharge part 53 having a discharge hole 531 is formed to discharge the leachate 10 through a discharge hole 531 of the leachate discharge part 53. The clarified leachate is made to flow out toward the second purification body 70.

The storage container assembly member 54 is coupled to an inner surface of the main body 51 in which the leachate discharge part 53 is formed so that one end of the leach container 55 is fitted into the storage container assembly 54. Longitudinal holes 541 and 542 are installed in the assembly member 54 in the longitudinal direction, and the long holes 541 and 542 form an opening in which one side thereof is opened so that the leachate tank 55 is opened through the open opening. It fits inside of the reservoir assembly member 54.

A drain hole 544 communicating with the leachate discharge part 53 is drilled at a surface perpendicular to the surface where the long holes 541 and 542 are installed, and a leachate bucket is disposed in the space between the drain hole 544 and the leachate discharge part 53. When the discharge pipe 553 of the 55 is positioned so that the drain hole 544, the leachate discharge part 53, and the discharge hole 553a of the discharge pipe 553 are located on the same line, the leachate water is the second. It is made to flow out to the purification | cleaning body 70 automatically.

The leaching canister 55 is formed in an open type with an upper surface open to provide a freshwater space 551 for storing the leachate which has passed through the filter 30 therein, and a plurality of activated carbons at the inner bottom of the freshwater space 551. The fixed part 552 is installed so that the activated carbon 40 is removed and attached to the activated carbon fixing unit 552.

One side of the leach tank 55 is coupled to the discharge pipe line 553 having a discharge hole (553a) for discharging the primary purified leachate and retains the elasticity of the spring (554) on the upper side of the discharge pipe line (553) A pair of fixed bar 555 is coupled to be assembled to move up and down by the amount (weight) of the leachate flowing into the leach tank 55.

Pedestal 57 is formed in one or more pillars 571 protruding to the lower side integrally so that the pillars 571 is fitted to the spring receiving portion 581 of the fixed block 58 on the lower side of the leach basin 55 It is coupled to the pedestal fixing portion 556 formed.

Fixing block 58 is installed on the inner bottom of the main body 51, one or more spring receiving portion (581) is formed on the upper surface of the fixed block 58 to the pedestal 57 to the spring receiving portion (581). A spring 59 to be supported is inserted.

The spring 59 is moved by the weight of the leach tank 55 by the weight of the leach tank 55 when the amount of leach water flowing into the inside of the leach tank 55 is increased. ) And temporarily discharge the discharge pipe 553 when moving to the lower side while temporarily compressing, if a small amount of leachate flowing into the leach tank 55, that is, a small amount to the elastic restoring force of the spring (554) (59) By moving the leaching canister 55 to the upper side to automatically control the leachate no longer flows toward the second purification body 70 through the discharge pipe (553).

The filter 30 is formed of an adsorption cloth for adsorbing oil and contaminants, and is demounted and mounted on the filter fixing part 52 of the main body 51. The filter 30 adsorbs impurities contained in the leachate and filters the filter ( Only leachate having passed through 30 is contained in the lower leachate 55.

The activated carbon 40 is formed of a strong adsorptive carbon system for purifying contaminants of the leachate 10 and is fixed to the activated carbon fixing unit 552 installed at the bottom of the leachate 55.

The second purification body 70 is formed of an enclosure in which the upper surface part is opened, and a connection part 72 to which the leachate discharge part 53 of the first purification body 50 is connected is formed at one side central part thereof, and the other lower surface A discharge port 74 is formed at the side to discharge the purified leachate to the outside, and the discharge port 74 is coupled to a control valve 80 to which the discharge pipe 81 is connected. The planting part 61 having the water purification part 60 having excellent water purification capability was formed to be rooted and grown in the planting part 61.

On the other hand, water purification plants having excellent water purification ability used in the present invention are reeds (Phragmites australis), babies (Typhaangustifolia), buds (Typha orientalis), Phargmites japonica, Zizania latifolia (N) and phosphorus (P) in leachate composed of various plants such as Scripus triqueter, Iris pseudoacorus, Acorus calamus, Nelumbo nucifera, and Nymphaea tetragona. It is designed to increase the transparency of water quality by improving the removal ability.

In the leachate purification apparatus of the landfill of the present invention configured as described above, when the leachate 10 generated from the landfill is transferred to the first purifying body 50 using a leachate transport pipe 20 provided with a pump, the leachate transport pipe 20 The leachate 10 supplied through) is primarily filtered by the filter 30 installed on the upper side thereof, and the leachate 10 passing through the filter 30 stores the leachate 10. The fresh water space 551 is gathered in the leaching canister 55 is provided.

In this way, the leachate stored in the leach tank 55 performs a primary purification operation in which activated carbon 40 installed on the inner bottom thereof adsorbs contaminants of the leachate.

At this time, if the amount of leachate stored in the leach tank 55 gradually increases, the leach tank 55 is lowered by temporarily compressing the springs 554, 59 located on its lower side by its own weight, and the leachate descending If the discharge pipe 553 of the cylinder 55 is located in the same line as the discharge hole 553a and the drainage hole 544 and the leachate discharge part 53, the leachate is automatically directed to the second purifying body 70 through these pipes. Drained.

If a small amount of leachate flowing into the leach tank 55, that is, the storage amount is small, the leachate can no longer leach water through the discharge pipe line 553 by moving the leach bucket 55 to the upper side by the elastic restoring force of the springs 554 and 59. The automatic control is repeated so that it no longer flows out toward the second purification body 70.

On the other hand, the leachate flowing into the second purifying body 70 performs a second purifying action to once again purify the leachate first purified by the water purification plant 60 planted therein, and the second purifying body ( If the water quality of the secondary purified leachate in 70) is greatly improved, the control valve 80 for controlling the discharge pipe 81 is operated to discharge all to the outside.

As such, the leachate purification device of the landfill of the present invention is a landfill leachate discharge area, sewage treatment, sewage treatment plant treatment water discharge, domestic sewage discharge site, heavy water discharge for reuse, polluted rivers, and other water pollution source for the purpose of The leaching water generated in artificial wetlands or lakes can effectively remove the water pollution source in a short time, which can greatly contribute to improving the transparency of the water quality.

As described in detail above, according to the present invention, the contaminants of the leachate 10 are first purified using the first purifier 50 in which the filter 30 and the activated carbon 40 are embedded, and then the first purified By leaching the leachate once again using the purified water plant 60 of the second purification body 70, it is possible to quickly treat the water pollution source of the leachate with high efficiency even in a short residence time. There is an effect that can be solved.

In addition, the present invention has a simple structure, there is no fear of failure, and contaminated by using aquatic plants having excellent water purification ability to purify pollutants of nitrogen (N) and phosphorus (P) contained in the leachate generated from landfills Improved material removal ability can contribute to the water purification effect, and the purified water can be recycled.

Claims (2)

In the leachate purification device of a landfill, A filter for purifying contaminants of the leachate 10, which is provided through the leachate transport pipe 20, and the leachate 10, which is supplied through the leachate transport pipe 20, so that the leachate 10 generated in the landfill may be transported to a predetermined position. 30) and the activated carbon 40 is built in the first purifying body 50 for the first purification of the contaminants of the leachate, and the water purification plant planted in one side of the first purifying body (50) ( The second purifying body 70 which once again purifies the first purified leachate from the first purifying body 50 and the leachate purified from the second purifying body 70 are transferred to the outside by using 60). Consists of a control valve 80 for controlling the discharge pipe 81 to The first purifying body 50 has a main body 51 formed of a sealed enclosure in which all surfaces except for the leachate inlet 511 into which leachate flows are introduced, and a freshwater space 551 for storing the leachate 10. It is provided on the leach basin 55 to store the leachate 10 through the filter 30, the pedestal 57 is assembled to the lower side of the leachate 55, and installed on the lower side of the pedestal 57 Spring 59 for moving the leachate bucket 55 up and down so as to automatically control the discharge pipe 553 of the leachate bucket 55, and installed at the bottom of the main body 51, where the spring 59 is seated. Leachate purification device of a landfill, characterized in that it comprises a fixed block (58). The main body 51 of claim 1, wherein the main body 51 is formed with a leachate discharge part 53 provided with a discharge hole 531 to discharge the leachate 10, and the leachate discharge part 53 is formed. To the storage container assembly member 54 coupled to the inner surface of the elongated leachate can 55 is fitted through one side opening of the long holes 541, 542 installed in the longitudinal direction, the long holes 541, 542 A drainage hole 544 communicating with the leachate drainage part 53 is installed at a surface orthogonal to the installed surface, and the discharge pipe 553 of the leachate bucket 55 is disposed between the drainage hole 544 and the leachate drainage part 53. The drainage hole 544, the leachate discharge part 53, and the discharge hole 553a of the discharge conduit 553 are located on the same line by the amount (weight) of the leachate flowing into the leachate tank 55 so as to be located. Leachate of the landfill, characterized in that configured only to automatically discharge the leachate to the second purifying body 70 Screen device.

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