KR101170832B1 - Water-purifying treatment device - Google Patents

Abstract

PURPOSE: A water purifying apparatus for a water treating facility with a water treating plant is provided to increase treating capability per time by separately implementing purifying processes in multi-staged purifying columns. CONSTITUTION: A water purifying apparatus for a water treating facility includes multi-staged purifying columns(10). The purifying column includes purifying parts(11), filter cartridges(12), and back wash supplying parts(13). The purifying parts secure spaces for filtering feed water. The filter cartridges are formed in the purifying parts. The back wash supplying parts wash the filter cartridges. Flanges are formed to stack the purifying columns. The purifying parts of the purifying columns are connected with one feed water supplying pipe. Back wash supplying parts are in connection with one treated water draining pipe and one back wash supplying pipe.

Description

Purifier for water treatment plant including water treatment plant {WATER-PURIFYING TREATMENT DEVICE}

The present invention relates to a purification device, and more particularly, purified water that can be applied to purified water treatment plant, sewage treatment plant, wastewater treatment plant, swimming pool, aquaculture plant, industrial site, and other food manufacturing plants to purify water and then supply it to the treated water. The present invention relates to a purification apparatus for a water treatment plant including a treatment plant.

Water and sewage treatment methods can be classified into physical, chemical and biological treatment methods, and water and sewage treatment are usually performed by appropriately combining the above three methods.

The physical treatment method is a treatment method for removing suspended solids and colloidal substances in water for the purpose of solid-liquid separation. Maintenance cost is low but efficiency is low. Chemical treatment is a treatment for the removal of soluble organic and inorganic substances. Because of the use of chemicals, sludge production is high and maintenance costs are high. Biological treatment is a method of removing organic matter and suspended matter decomposed by living organisms from microorganisms among organic matter present in sewage. Biological processes can be roughly divided into aerobic and anaerobic digestion.

On the other hand, various technologies related to sewage treatment are registered as patents.

For example, Korean Patent Registration No. 460461 "Bio-film, Activated Carbon, Activated Carbon Filter, and Industrial Wastewater Heavy Water Treatment System Linked with Sand Filtration and Advanced Oxidation" is a rotary biofilm, activated carbon and activated carbon adsorption, sand, and advanced oxidation. It combines the Advanced Oxidation Process and presents the technology to treat wastewater in refineries.

In addition, the Republic of Korea Patent No. 348413 "Ultraviolet and ozone generating AOP chamber and water treatment device using the same" is installed outside the water tank to sterilize harmful microorganisms in the water by using ultraviolet rays and ozone generated therefrom, and decomposes and cleans organic matter. Disclosed is a technology related to an AOP chamber (Advanced Oxidation Process Chamber) capable of causing a deodorizing effect and a new water treatment apparatus using the same.

In addition, Korea Patent Registration No. 656562 "Water Treatment Recycling System" effectively removes fine organic matter and suspended solids in sewage, sewage, or wastewater, and improves the quality of the discharged water through UV and ozone treatment and maintains stability. The technology is presented.

On the other hand, the effluent from the purified water treatment plant is not suitable for reuse as it is due to E. coli, odor, turbidity and color. As of the end of 2001, the secondary treated water discharged from 184 domestic water treatment plants in Korea is about 20 million tons per day, and a huge amount is discharged into rivers. However, the annual reuse of treated water is about 17.7 billion tons, with only 2.4% reuse rate. Increasing the annual reuse rate of such treated water by 5% will result in securing a dam of about 600 million tons of effective capacity. Considering this situation, it is essential to reuse the second treatment water in the treatment plant, and it is an alternative to overcome the water shortage.

Secondary treated water reused in the purified water treatment plant is different from heavy water that recycles used tap water into domestic water or industrial water, so that the discharged water treated and discharged from the existing purified water treatment plant can be reused after being reused. The advantage is that water can be obtained. Therefore, it is important to develop and implement a plan to reuse the treated water appropriately for the regional characteristics when the new water treatment plant is newly expanded.

Water reuse can be used as washing water, sprinkling water, landscaping water, river maintenance water, agricultural water and cooling water.

The reuse of secondary treated water differs in treatment standards according to the use. For example, when used as water for drinking or landscaping, no color treatment is required, whereas for washing water, the chromaticity should not exceed 20 degrees. Coagulation precipitation, Fenton oxidation, Ozone treatment, Activated carbon adsorption, and UV / H2O2 oxidation are widely used for color treatment. In the case of disinfecting raw water by chlorine treatment, disinfection by-products such as trihalomethane (THM) are generated, which contaminates the water source. Therefore, even chlorine disinfection devices installed in sewage treatment plants are not used.

On the other hand, technologies such as activated carbon, R / 0 (reverse osmosis) and membranes have been commercialized due to high processing efficiency. However, in the prior art, a purifier using activated carbon (filtration material) usually includes activated carbon in a purification tank and the raw water is Purifying by passing through the activated carbon of the purification tank, the capacity is inevitably increased, the economical efficiency is low due to the expensive maintenance and installation costs. In addition, activated carbon is contaminated with foreign substances over time because it filters out foreign substances by adsorption, and the purification ability is inevitably deteriorated depending on the degree of contamination, which requires washing and increases in size by installing a separate washing facility. none.

The present invention is to solve the problems as described above, the purified water treatment plant, sewage treatment plant, wastewater treatment plant, swimming pool, aquaculture plant, industrial sites, other food manufacturing plants to purify the water and then supply to the treated water, It is an object of the present invention to provide a purification apparatus for a water treatment plant including a purified water treatment plant for minimizing an area by arranging the purification section and the backwash section vertically.

Another object of the present invention is to install a purification tower in multiple stages, each purification tower performs an independent purification action to minimize the area and increase the processing capacity per unit time.

Purification apparatus for a water treatment plant comprising a purified water treatment plant according to the present invention is connected to the raw water supply pipe receiving the raw water and providing a space for filtering the raw water; A filter cartridge formed inside the purification unit; A backwash water supply unit connected to the treated water drain pipe and the backwash water supply pipe, respectively, to drain the treated water purified through the filter cartridge through the treated water drain pipe or to receive backwash water and to spray the filter cartridge to wash the filter cartridge. Characterized in that comprises a purification tower made.

In the present invention, two or more purification towers are stacked and used, and connected to a single raw water supply pipe or the like to purify independently.

According to the purification device for a water treatment plant including the purified water treatment plant according to the present invention, it is applied to a purified water treatment plant, a sewage treatment plant, a wastewater treatment plant, a swimming pool, a farm, an industrial site, and other food manufacturing plants to purify water and supply it to the treated water. However, by minimizing the area by arranging the purifying part and the backwashing part up and down, the cost for securing the site can be reduced, and the raw water is purified only through the supply of raw water and the backwashing water, and the filter medium for filtering (active carbon, sand) Maintenance cost can be reduced.

In addition, the multi-stage purification tower performs independent purification to minimize the area and increase the processing capacity per unit time, thereby reducing initial investment and maintenance costs, and contributing to securing water resources by increasing the supply of treated water. have.

1 is a front view of a purification apparatus for a water treatment plant including a water treatment plant according to the present invention.
2 is a plan view of a purification apparatus for a water treatment plant including a water treatment plant according to the present invention.
3 is a cross-sectional view of a purification tower applied to a purification apparatus for a water treatment plant including a water treatment plant according to the present invention.

As shown in Fig. 1 and Fig. 2, the purification apparatus 100 for a water treatment plant including the purified water treatment plant according to the present invention includes a purification unit 11, a filter cartridge 12, and a backwash water supply unit providing a space for purifying raw water. The purification tower 10 which consists of 13 is provided.

In the purification tower 10, the purification unit 11 is disposed at the top, and the backwash water supply unit 13 is disposed at the bottom thereof, and the raw water is introduced into the purification unit 11 and then purified after passing through the filter cartridge 12. Drainage treatment is carried out via the supply section 13, the backwash water is supplied to the backwash water supply section 13 and then sprayed to the top (treated water drain is automatically closed) while passing through the filter cartridge 12 to the filter cartridge 12 After washing the sand and activated carbon constituents are drained through the treated water drainage system and other drainage system.

The purification tower 10 is illustrated as being circular in plan view, but is not limited thereto, and may have various shapes such as square and rectangular.

The filter cartridge 12 purifies the contaminated raw water, and may be composed of a sand layer 12a for purification and an activated carbon layer 12b (laminated on the sand layer for purification). That is, on the basis of the purification, raw water is first purified through the activated carbon layer and then secondly purified through the sand layer for purification.

The filter cartridge 12 is composed of two layers of purified sand and activated carbon. For example, sand is deposited on the support plate 15 to a predetermined thickness to form a sand layer, and activated carbon is deposited on the sand layer to a predetermined thickness to form an activated carbon layer. To form. Since the support plate 15 allows the water to pass through while supporting the filter cartridge 12, the plate may be formed in a hole or a plurality of rods connected to support the filter cartridge 12 instead of the plate. (Eg lattice).

The sand and activated carbon of the filter cartridge 12 are washed by the backwashing water, but if the contamination is high, the sand and the activated carbon may not be washed by the backwashing water, so that the sand and the activated carbon may be replaced. It is preferable to use the cartridge compartment 12c for ease of replacement because the replacement operation is very cumbersome and there will be residual contaminated sand and activated carbon because it is a method of laying new ones after being discharged.

The cartridge box 12c is a container in which the sand and the activated carbon are contained, and is made porous so that the raw water and the backwash water flow. For example, the cartridge box 12c may be an open top container or a container equipped with a lid.

In addition, the filter cartridge 12 may include a microporous block 12d. The microporous block 12d is a porous body capable of moving in both directions (top to bottom, bottom to top) of water.

Since the microporous block 12d is manufactured in the form of a block, as shown in FIG. 3, the microporous block 12d may be disposed at the bottom of the cartridge box 12c without being inserted into the cartridge box 12c, and, of course, inserted into the cartridge box 12c. It is also possible.

The fine pore block 12d may be detachably inserted into the purification tower 10, and thus may be washed by backwashing water, but may be drawn out of the purification tower 10 and washed out.

The backwash water supply unit 13 allows the backwash water to be supplied to the filter cartridge 12 during the cleaning, but provides a flow path through which the purified water is drained upon purification.

Purification tower 10 is the raw water supply pipe (1), treated water (purified water) drain pipe (2), backwash water supply pipe (3) and backwash water drain pipe (4) are piped, respectively, purification of raw water and washing by backwash water Since the feed does not proceed at the same time, the system of the raw water supply and treated water and the backwash system are opened and closed independently, and of course, the raw water and the treated water do not flow into the backwash water system and conversely, the backwash water does not flow into the raw water and treated water systems. do.

3 is a cross-sectional view of the purification tower 10, in which the purification tower 10 includes two upper plates 14 and supporting plates 15 and lower plates 16 and two, ie, couplings between them. The first and second cylinders 17 and 18 may be combined.

The upper plate 14 and the lower plate 16 have the same structure and are blocked to prevent the inflow of raw water. The raw water supply pipe 1, the treated water (purified water) drain pipe 2, the backwash water supply pipe 3, and the backwash water drain pipe Holes 4 to 4 may be formed to be fixed or supported, and this method is effectively used when the purification tower 10 is installed in multiple stages, which will be described in detail below.

The support plate 15 supports the filter cartridge 12 so that the treated water is drained after passing through the backwash water supply unit 13 and is formed porous so that the backwash water passes through the inside of the filter cartridge 12.

The first cylinder 17 is installed between the upper plate 14 and the support plate 15 to form a purifying unit 11, connected to the raw water supply pipe 1, for example, to guide the raw water to be fed raw water A backwash water drainage induction pipe 17b is connected to the pipe 17a and the backwash water drain pipe 4 to induce drainage of the backwash water.

The second cylinder 18 is installed between the support plate 15 and the lower plate 16 to form a backwash water supply part 13, and a backwash water inflow pipe 18a connected to the backwash water supply pipe 3, the treatment The treated water induction pipe 18b connected with the water drain pipe 2 is provided.

The raw water inflow pipe 17a, the backwash water drainage induction pipe 17b, the backwash water inflow pipe 18a, and the treated water induction pipe 18b are formed in holes formed in the first and second cylinders 17 and 18, respectively. It may be.

When the purification tower 10 is stacked and used in multiple stages, the purification tower 10 stacked on the upper and lower sides is flange-coupled (coupled through fasteners with flanges overlapping each other), and for this purpose, an outward flange is formed. The flange may be formed on the upper and lower plates 14 and 16, or may be formed through separate plates (plates having a larger outer diameter than the upper and lower plates 14 and 16).

The purification tower 10 having such a configuration is used in one or more stages, and when installed in two or more stages, there is an advantage that it can be installed in a small area.

1 shows three purification towers, hereinafter, three purification towers 10, 20, and 30 will be described as an example.

Each of the first to third purification towers 10, 20, and 30 has the same purification unit 11, 21, 31, filter cartridges 12, 22, 32, and backwash water supply unit 13, 23, 33. do.

The first to third purification towers 10, 20, and 30 are configured to be connected to one raw water supply pipe 1, the treated water drain pipe 2, the backwash water supply pipe 3, and the backwash water drain pipe 4, respectively. In other words,

Therefore, even if the first to third purification towers 10, 20, 30 are stacked, each purification tower 10, 20, 30 independently purifies the raw water and washes the filter cartridges 12, 22, 32. This can handle a large amount per unit time.

According to the present invention, the multi-stage purification towers 10, 20, and 30 may be used at the same time, but according to the amount of raw water, one or more purification towers 10, 20, and 30 are configured to be selectively used. Etc.), and valves are installed in the drainage system of the raw water supply and the treated water and the drainage system of the backwash water and the backwash water. The valve is opened and closed by a manual operation of an administrator or remotely in an automatic or management room.

In the present invention, a sterilizer 40 for sterilizing the treated water purified through the purification tower 10 (or the first to third purification towers 10, 20, 30) may be applied.

The sterilizer 40 is, for example, a pipe type coupled to the treated water drainage pipe 2 to sterilize the treated water flowing along the treated water drainage pipe 2, and an ultraviolet sterilizer, an ozone sterilizer, or the like is applicable.

In the figure, a flow path for supply and drainage of raw water and a supply and drainage of backwash water is shown as a concentric circle. However, the flow path for supply and drainage of raw water is not limited thereto. The other half may be formed as a flow path for the supply and drainage of backwash water.

The present invention can be fixed or mobile that is permanently fixed to the water treatment plant, in the case of a mobile wheel (W) is applied.

The operation of the purification apparatus for a water treatment plant including the water treatment plant according to the present invention is as follows.

1. Purification of raw water.

The raw water treated in the purified water treatment plant is supplied to the first to third purification towers 10, 20, 30 through the raw water supply pipe 1, purified, and then drained through the treated water drain pipe 2.

In more detail, the raw water flowing into the raw water supply pipe 1 (water that has passed through a pretreatment process (screen, chemical injection facility, sedimentation basin, etc.)) is the first to third purification towers through the raw water induction pipe 17a ( It is supplied to the purification parts 11, 21, and 31 of 10, 20, and 30, respectively.

The raw water supplied to the purification units 11, 21, and 31 passes through the activated carbon and sand of the filter cartridges 12, 22, and 32 by water pressure and self weight, and foreign matters are filtered out in this process.

The treated water in which the foreign matter is filtered is discharged through the treated water drain pipe 2 through the treated water drainage pipe 18b after passing through the backwash water supply parts 13, 23, and 33.

In the first to third purification towers (10, 20, 30), each of the treated water is collected through one treated water drain pipe (2), and then proceeds to a subsequent process, and when the sterilizer 40 is applied, the sterilizer 40 is After sterilization, it is supplied to drinking or control water.

2. Wash.

Foreign matter is adsorbed to the activated carbon and sand of the filter cartridges 12, 22 and 32 (including the fine pore block 12d) during the purification of the raw water through the above-described method. Therefore, the activated carbon and the sand are contaminated with foreign matter (e.g., Mud phenomenon).

The contaminated activated carbon and sand are reused through a washing process because they have no or poor purification ability, and in the present invention, backwash water is supplied through the backwash water supply pipe 3 to wash the contaminated activated carbon and sand.

The backwash water supplied to the backwash water supply pipe 3 is reversed to each of the purification towers 10, 20, 30 through the backwash water inflow pipes 18a of the first to third purification towers 10, 20, 30. It is supplied to the wash water supply part 13, 23, 33.

The backwash water supplied to the backwash water supply units 13, 23, and 33 is sprayed to the upper filter cartridges 12, 22, and 32 by hydraulic pressure to activate activated carbon, sands, and fine pores of the filter cartridges 12, 22, and 32. The activated carbon and sand are dispersed while passing through the holes 12d of the block 12d, and foreign substances adsorbed on the activated carbon and sand are removed.

The backwash water passing through the filter cartridges 12, 22, and 32 is discharged through the backwash water drain induction pipe 17b and collected and treated in one backwash water drain pipe 4, and the foreign matter removed from the activated carbon and sand To the outside of the purification tower (10, 20, 30).

10,20,30: first to third purification towers,
11,21,31: Purification part, 12,22,32: Filter cartridge
13,23,33: backwash water supply unit,
14: top plate, 15: support plate
16: lower plate, 17, 18: first and second cylinder
17a: raw water induction pipe, 17b: backwash water drainage induction pipe
18a: backwash water induction pipe, 18b: treated water induction pipe

Claims (7)

A purifying part 11 connected to the raw water supply pipe and receiving the raw water and providing a space for filtering the raw water;
A filter cartridge 12 formed inside the purification unit;
It is connected to each of the treated water drain pipe and the backwash water supply pipe, and drains the treated water purified through the filter cartridge through the treated water drain pipe (2) or receives backwash water to spray the filter cartridge to wash the filter cartridge. It includes a purification tower 10 consisting of the washing water supply unit 13,
The purification tower has an outward flange is formed in the upper and lower parts are laminated in two or more stages by fastening fasteners to the flange, the purification section of the purification tower is connected to one raw water supply pipe (1) and the backwash water supply unit Are connected to one treated water drain pipe and a backwash water supply pipe, and each purification unit independently purifies raw water supplied through the raw water supply pipe, and each backwash water supply unit purifies the treated water purified by the purification unit. Independently drained through, and each of the backwash water supply unit to purify the backwash water supplied through the backwash water supply pipe to the purification unit, characterized in that for purifying water treatment plant comprising a water treatment plant. delete The water treatment facility of claim 1, wherein the filter cartridge comprises a microporous block, a purification sand layer, and an activated carbon layer stacked from the bottom on a porous support plate partitioning the purification unit and the backwash water supply unit. Purifier. The purification apparatus for a water treatment plant of claim 3, wherein the purification sand layer and the activated carbon layer of the filter cartridge are installed to be replaced through a cartridge box, and the microporous block is disposed at the bottom of the cartridge box. . The method according to claim 1,
And the raw water supply pipe, the treated water drain pipe, and the backwash water supply pipe are penetrated through the flanges of the purification towers. The purifying apparatus of claim 1, wherein the purification towers are selectively connected to or disconnected from the raw water supply pipe and the backwash water supply pipe through a valve.

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