KR20230143335A - Multi-layered sewage treatment equipment with variable equalization tank, and sewage treatment method using the same - Google Patents

Abstract

The sewage treatment facility consisting of a storage facility, sewage treatment facility, and management facility is constructed as a two-story structure, and a gate is installed in the flow control tank to operate the storage space of the storage facility variably during rain or clear weather, thereby efficiently utilizing the entire storage space. In addition, the sewage treatment facility can be operated efficiently by variable adjusting the storage space of the inflow water storage facility and the treated water reuse storage tank using a variable flow rate adjustment tank. Additionally, when maintaining sewer pipes, the load of rainwater runoff can be reduced. A multi-story sewage treatment facility equipped with a variable flow rate adjustment tank that can efficiently operate a rainwater pumping station and a sewage treatment plant, and can also be easily utilized in large-scale main sewer pipe maintenance projects, and a sewage treatment method thereof are provided.

Description

Multi-layer sewage treatment facility equipped with variable flow rate adjustment tank and its sewage treatment method {MULTI-LAYERED SEWAGE TREATMENT EQUIPMENT WITH VARIABLE EQUALIZATION TANK, AND SEWAGE TREATMENT METHOD USING THE SAME}

The present invention relates to a multi-story sewage treatment facility. More specifically, the sewage treatment facility (or sewage treatment plant) consisting of a storage facility, a sewage treatment facility, and a management facility is composed of a double-story structure, and a gate is connected to the flow rate adjustment tank (Variable Equalization Tank). It relates to a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank that can variably operate the storage space of the storage facility during rain or clear weather by installing a and its sewage treatment method.

Recently, as population and industrial complexes are concentrated in certain areas due to urbanization and industrialization, the site area where sewage treatment plants can be located is becoming smaller. Accordingly, the installation of basic environmental facilities such as early rainfall treatment facilities and treated water reuse storage tanks is required. Space constraints are increasing.

The load on the sewage treatment plant may increase due to non-point pollution sources generated within the treatment area of the sewage treatment plant and the increase in hydraulic load during initial rainfall. Additionally, the load on the sewage treatment plant may increase due to a sudden increase in contaminants deposited in sewer pipes. Accordingly, the quality of water discharged from a sewage treatment plant may deteriorate beyond a preset range.

Recently, water resources are managed efficiently by using treated sewage water as urban water such as landscaping water, road cleaning water, firefighting water, and river ecological water. However, in the case of industrial complexes that generate high-concentration wastewater, stable operation of sewage treatment plants is difficult due to initial rainfall or increased inflow load at specific times.

Meanwhile, the amount of sewage flowing into a sewage treatment plant varies greatly depending on the time of day. For example, the amount of sewage inflow increases during the day when people are active, and the amount of sewage inflow decreases sharply during the early morning hours when people are less active. Therefore, in general, biological reactors in sewage treatment plants are designed based on the average inflow sewage amount, for example, 2,000㎥/h, and changes in inflow sewage amount can be buffered by creating a separate flow rate adjustment tank.

These flow rate adjustment tanks are divided into series (in-line) and parallel (off-line) types depending on the arrangement method. The flow rate adjustment tank shown in Figure 1a is a series type in which all influent sewage passes through the flow rate adjustment tank, and Figure 1b The flow control tank shown in is a parallel system in which only the amount exceeding the maximum daily sewage flow flows into the flow control tank.

Figure 1 is a diagram schematically showing a sewage treatment facility equipped with an in-line flow rate adjustment tank, and Figure 2 is a diagram schematically showing a sewage treatment facility equipped with a parallel (off-line) type flow rate adjustment tank. am.

Referring to FIG. 1, a sewage treatment facility equipped with an in-line flow rate adjustment tank uses a silt basin 11 and a flow rate to remove floating contaminants and organic contaminants contained in sewage/wastewater. It includes a conditioning tank (12), an influent supply pump (13), a primary settling tank (14), a biological reactor (15), and a secondary settling tank (16).

Referring to FIG. 2, a sewage treatment facility equipped with a parallel (off-line) flow rate adjustment tank uses a silt basin 21 and inflow water to remove suspended pollutants and organic pollutants contained in sewage/wastewater. It includes a supply pump (22), an overflow device (23), a flow rate adjustment tank (24), a circulation pump (25), a primary settling tank (26), a biological reactor (27), and a secondary settling tank (28).

For example, the primary settling basins (14, 26) serve as a preliminary treatment for later biological treatment, and allow the influent sewage to remain for a certain period of time to precipitate substances heavier than water and remove them as sediment sludge. After the material is removed through a scum removal device on the water surface, a certain amount is supplied to the biological reactors (15, 27). At this time, since the biological reactors (15, 27) are a process of oxidizing and decomposing organic pollutants using aerobic microorganisms, an environment suitable for the growth of microorganisms must be maintained and the residence time must be constant. Therefore, it is desirable that the amount of sewage supplied from the primary settling ponds (14, 26) to the bioreactors (15, 27) is always constant.

Accordingly, by installing the flow rate adjustment tanks 12 and 24, problems caused by changes in the amount of incoming sewage can be solved. In other words, these flow rate adjustment tanks 12 and 24 are installed to equalize the flow rate and water quality load of incoming sewage, thereby reducing the capacity of subsequent treatment facilities and reducing operating costs.

Specifically, the in-line flow rate adjustment tank is a method in which the entire amount of influent sewage passes through the flow rate adjustment tank, and the inflow water quality and flow rate can be kept constant at the target water quality and flow rate. In addition, the parallel (off-line) flow rate adjustment tank is installed when the change in flow rate is not large, and only the flow rate exceeding the maximum flow rate per day is introduced into the flow rate adjustment tank, and compared to the series (in-line) method, the flow rate adjustment tank is installed. and the effectiveness of homogenization is low.

However, in order to install these flow adjustment tanks (12, 24), a fairly large installation site is required, so there is a problem in that large costs such as site purchase costs and facility construction costs are required. In particular, when available facility land is insufficient or a large-scale flow control tank is required, the cost is required to be quite large.

Meanwhile, Figure 3 is a schematic diagram of a sewage treatment facility equipped with a flow rate adjustment tank according to conventional technology.

Referring to Figure 3, a sewage treatment facility equipped with a flow rate adjustment tank according to the prior art is a sewage treatment plant for treating sewage/wastewater, and includes a sewage treatment facility (30), a storage facility (40), and a management facility (50). In this case, the sewage treatment facility 30 may sequentially include a sedimentation tank 31, a primary settling tank 32, a bioreactor 33, a secondary settling tank 34, and a rapid filtration tank 35. , In addition, the storage facility 40 includes an inflow water storage tank 41, a flow rate adjustment tank 42, and a treated water reuse storage tank 43.

However, in a sewage treatment facility equipped with a flow rate adjustment tank according to conventional technology, the sewage treatment facility (30), storage facility (40), and management facility (50) are arranged in parallel underground or above ground, respectively, and accordingly, the facility site There is a problem that the efficiency of use is low. At this time, some of the storage facilities 40 may be placed underground, but there is a problem that there are restrictions on the use of the entire storage space as the facilities are placed underground.

Republic of Korea Patent No. 10-0493580 (registration date: May 26, 2005), title of invention: “Primary settling tank with flow rate adjustment function and flow rate adjustment method using the same” Republic of Korea Patent No. 10-1946554 (registration date: January 31, 2019), title of invention: “Sewage treatment facility and method capable of controlling water supply and flow rate” Republic of Korea Patent No. 10-1205776 (registration date: November 22, 2012), title of invention: “Water treatment method and multi-stage SBR water treatment device for variable control according to inflow flow rate” Republic of Korea Patent Publication No. 2009-55160 (publication date: June 2, 2009), title of invention: “Sewage treatment system and method using a flow rate adjustment tank as a biological reactor” Republic of Korea Patent No. 10-1075961 (registration date: October 17, 2011), title of invention: “Biochemical variable advanced sewage treatment device” Republic of Korea Patent Publication No. 2003-10917 (publication date: February 6, 2003), title of invention: “Landfill site construction method using installation of flow rate adjustment tank in landfill area”

The technical problem that the present invention aims to achieve in order to solve the above-mentioned problems is to construct a sewage treatment facility consisting of a storage facility, a sewage treatment facility, and a management facility as a two-story structure, and to install a flow control tank to control the storage facility in case of rain or clear weather. The purpose is to provide a multi-story sewage treatment facility equipped with a variable flow rate control tank that can variably operate the storage space and a sewage treatment method thereof.

Another technical problem to be achieved by the present invention is a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank that can variably adjust the storage space of the inflow water storage facility and the treated water reuse storage tank using the variable flow rate adjustment tank, and its sewage treatment method. It is intended to provide.

As a means of achieving the above-described technical problem, a multi-story sewage treatment facility equipped with a variable flow rate control tank according to the present invention is placed on the second basement level and is equipped with an inflow water storage tank, a variable flow rate adjustment tank, and a treated water reuse storage tank. , a storage facility in which inflow water is stored in the inflow water storage tank and supplied to a sewage treatment facility, treated water treated in the sewage treatment facility is stored in the treated water reuse storage tank, and the storage space is variably operated by the variable flow rate adjustment tank. ; It is placed on the first basement level above the storage facility, and treats the influent water supplied from the influent water storage tank to remove floating pollutants and organic pollutants contained in sewage/wastewater and stores it in the treated water reuse storage tank or in the river. Discharging sewage treatment facilities; and a management facility disposed on the ground floor above the sewage treatment facility and controlling and managing the storage facility and the sewage treatment facility, wherein the storage facility includes an inflow water retention tank that stores inflow water and supplies it to the sewage treatment facility; a treated water reuse storage tank that stores the treated water treated in the sewage treatment facility; and a variable flow rate control tank disposed in parallel between the inflow water storage tank and the treated water reuse storage tank and having a front gate and a rear gate, wherein the front gate and the rear gate are opened and closed to variably operate the storage space during initial rainfall or clear weather. It consists of:

Here, in the variable flow rate control tank of the storage facility, the storage space of the variable flow rate adjustment tank can be utilized as a storage space of the inflow water storage tank by opening the front gate and closing the rear gate during initial rainfall.

Here, 30% of the total storage space is allocated to the inflow water storage tank, 40% of the total storage space is allocated to the variable flow rate adjustment tank, 30% of the total storage space is allocated to the treated water reuse storage tank, and in case of rainfall The storage space of the variable flow rate adjustment tank is utilized as the storage space of the inflow water storage tank, and the storage space of the inflow water storage tank can be reallocated to 70% of the total storage space.

Here, in the variable flow rate control tank of the storage facility, the storage space of the variable flow rate adjustment tank can be utilized as a storage space of the treated water reuse storage tank by closing the front gate and opening the rear gate during clear weather or dry seasons. there is.

Here, 30% of the total storage space is allocated to the inflow water storage tank, 40% of the total storage space is allocated to the variable flow rate adjustment tank, and 30% of the total storage space is allocated to the treated water reuse storage tank. Alternatively, during the dry season, the storage space of the variable flow rate adjustment tank may be used as a storage space of the treated water reuse storage tank, and the storage space of the treated water reuse storage tank may be reallocated to 70% of the total storage space.

Here, the variable flow rate adjustment tank opens the front gate and closes the rear gate when a specific time period has a large inflow of influent water in a high-temperature factory wastewater inflow area, so that the storage space of the variable flow rate adjustment tank becomes the inflow water storage tank. It can be used as a storage space.

Meanwhile, as another means of achieving the above-described technical problem, the sewage treatment method of a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to the present invention includes a) a storage facility on the second basement floor and sewage treatment on the first basement floor. A step of operating a sewage treatment facility consisting of a double-story facility and a management facility on the ground floor; b) confirming the influent water flowing into the influent water storage tank of the storage facility; c) Checking whether it is a specific time period with initial rainfall or high flow rate; d) In the case of a specific time period where the initial rainfall or flow rate is high, opening and closing the front gate and rear gate of the variable flow rate adjustment tank of the storage facility installed on the second basement floor, and utilizing the variable flow rate adjustment tank as the inflow water storage tank. ; e) performing sewage treatment at a sewage treatment plant installed on the first basement floor and storing contaminated water in the treated water reuse storage tank; f) If it is not a specific time period with high initial rainfall or high flow rate, open and close the front gate and rear gate of the variable flow rate control tank of the storage facility installed on the second basement floor, and transfer the variable flow rate control tank to the treated water reuse storage tank. Steps to utilize; g) It includes the step of carrying out sewage treatment at the sewage treatment plant installed on the first basement level, and storing or discharging the treated water into the river.

Here, the storage facility in step a) includes an inflow water storage tank that stores inflow water and supplies it to the sewage treatment facility; a treated water reuse storage tank that stores the treated water treated in the sewage treatment facility; and a variable flow rate control tank disposed in parallel between the inflow water storage tank and the treated water reuse storage tank and having a front gate and a rear gate, wherein the front gate and the rear gate are opened and closed to variably operate the storage space during initial rainfall or clear weather. It can be included.

Here, in step d), the variable flow rate adjustment tank opens the front gate and closes the rear gate during initial rainfall, so that the storage space of the variable flow rate adjustment tank is utilized as a storage space of the inflow water storage tank; 30% of the total storage space is allocated to the inflow water storage tank, 40% of the total storage space is allocated to the variable flow rate adjustment tank, 30% of the total storage space is allocated to the treated water reuse storage tank, and in case of rainfall, the variable The storage space of the type flow rate adjustment tank is used as the storage space of the inflow water storage tank, so the storage space of the inflow water storage tank can be reallocated to 70% of the total storage space.

Here, in step f), the variable flow rate adjustment tank closes the front gate and opens the rear gate during clear weather or dry weather, so that the storage space of the variable flow rate adjustment tank is used as a storage space of the treated water reuse storage tank. and; 30% of the total storage space is allocated to the inflow water storage tank, 40% of the total storage space is allocated to the variable flow rate adjustment tank, and 30% of the total storage space is allocated to the treated water reuse storage tank, in clear weather or during the dry season. When the storage space of the variable flow rate adjustment tank is utilized as the storage space of the treated water reuse storage tank, the storage space of the treated water reuse storage tank can be reallocated to 70% of the total storage space.

Here, in step d), the variable flow rate control tank opens the front gate and closes the rear gate when a specific time zone has a large inflow of influent water in the high-temperature factory wastewater inflow area, thereby reducing the storage of the variable flow rate control tank. The space can be used as a storage space for the inflow water storage tank.

According to the present invention, a sewage treatment facility consisting of a storage facility, a sewage treatment facility, and a management facility is configured as a double-layer structure, and a gate is installed in the flow control tank to variably operate the storage space of the storage facility during rain or clear weather, thereby maintaining the total storage volume. Space can be utilized efficiently.

According to the present invention, it is possible to efficiently operate a sewage treatment facility by variably adjusting the storage space of the inflow water storage facility and the treated water reuse storage tank using a variable flow rate adjustment tank.

According to the present invention, rainwater pumping stations and sewage treatment plants can be operated efficiently by reducing the load of rainwater runoff when maintaining sewer pipes, and can also be easily utilized in large-scale main sewer pipe maintenance projects.

Figure 1 is a diagram schematically showing a sewage treatment facility equipped with a series flow rate adjustment tank.
Figure 2 is a diagram schematically showing a sewage treatment facility equipped with a parallel flow rate adjustment tank.
Figure 3 is a schematic diagram of a sewage treatment facility equipped with a flow rate adjustment tank according to conventional technology.
Figure 4 is a schematic configuration diagram of a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention.
Figure 5 is a detailed configuration diagram of a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention.
Figure 6 is a diagram specifically showing a storage facility in a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention.
Figure 7 is a diagram showing the opening and closing of the gate of the variable flow rate adjustment tank in a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention.
Figure 8 is an operation flow diagram of a sewage treatment method of a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention.

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the specification, when a part is said to “include” a certain element, this means that it may further include other elements rather than excluding other elements, unless specifically stated to the contrary.

[Multi-story sewage treatment facility equipped with a variable flow rate adjustment tank (220)]

Figure 4 is a schematic configuration diagram of a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention, and Figure 5 is a schematic diagram of a double-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention. This is a detailed configuration diagram.

Referring to FIG. 4, a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention largely includes a storage facility 200, a sewage treatment facility 300, and a management facility 400, where , the storage facility 200 includes an inflow water storage tank 210, a variable flow rate adjustment tank 220, and a treated water reuse storage tank 230, and also includes an inflow pipe 240, a first discharge water channel 250, and inflow water. It may include a supply pump 260, a treated water discharge pump 270, and a second discharge water channel 280.

First, a multi-story sewage treatment facility equipped with a variable flow rate control tank according to an embodiment of the present invention is constructed inside the embankment 120 on the ground 110 and at least the second basement level.

The storage facility 200 is located on the second basement level and is equipped with an inflow water storage tank 210, a variable flow rate adjustment tank 220, and a treated water reuse storage tank 230. The inflow water is stored in the inflow water storage tank 210 to discharge sewage. It is supplied to a treatment facility, and the treated water treated in the sewage treatment facility is stored in the treated water reuse storage tank 230, and the storage space is variably operated by the variable flow rate adjustment tank 220. That is, the storage facility 200 sequentially configures an inflow water storage tank 210, a variable flow rate adjustment tank 220, and a treated water reuse storage tank 230 in parallel. Here, the inflow water storage tank 210 may be an initial rainwater storage tank, a sewage storage tank, or an industrial sewage storage tank.

At this time, the variable flow rate adjustment tank 220 located in the middle of the inflow water storage tank 210 and the treated water reuse storage tank 230 is provided with a front gate 221 and a rear gate 222, so that it can be used in clear weather, rain, etc. By controlling the opening and closing of the front gate 221 and the rear gate 222 according to weather conditions and various inflow conditions, the efficiency of the inflow water storage tank 210 and the treated water reuse storage tank 230 can be maximized.

Specifically, the inflow water storage tank 210 of the storage facility 200 stores inflow water and supplies it to the sewage treatment facility 300. At this time, the inflow water may be sewage/wastewater or initial rainfall.

The variable flow rate adjustment tank 220 of the storage facility 200 is arranged in parallel between the inflow water storage tank 210 and the treated water reuse storage tank 230, and is provided with a front gate 221 and a rear gate 222. , the front gate 221 and the rear gate 222 are opened and closed to variably operate the storage space during initial rainfall or clear weather.

The treated water reuse storage tank 230 of the storage facility 200 stores the treated water treated in the sewage treatment facility 300.

The inflow pipe 240 of the storage facility 200 is installed at the front of the inflow water storage tank 210 to allow inflow water to flow in.

The influent water supply pump 260 of the storage facility 200 supplies the influent water stored in the influent water storage tank 210 to the primary settling basin 320 of the sewage treatment facility 300, and also supplies the influent water stored in the influent water storage tank 210 to the primary settling basin 320 of the sewage treatment facility 300. ) The treated water discharge pump 270 discharges the treated water stored in the treated water reuse storage tank 230.

The first discharge channel 250 of the storage facility 200 may be a pipe arranged to discharge treated water treated in the sewage treatment facility 300 when the river is at a level level, and the storage facility 200 The second discharge channel 280 may be a pipe arranged to discharge the treated water discharged from the treated water discharge pump 270 when the water level is at a flood level.

Here, the variable flow rate adjusting tank 220 operates the variable flow rate adjustment tank 220 by opening the front gate 221 and closing the rear gate 222 when the inflow amount of influent water is high in the high-temperature factory wastewater inflow area. The storage space of the flow rate adjustment tank 220 may be used as the storage space of the inflow water storage tank 210.

Referring again to FIG. 4, the sewage treatment facility 300 is located on the first basement level above the storage facility 200, and is installed in the inflow water storage tank to remove suspended pollutants and organic pollutants contained in sewage/wastewater. The influent water supplied from 210 is treated and stored in the treated water reuse storage tank 230 or discharged into the river.

Specifically, the sewage treatment facility 300 may include a sedimentation tank 310, a primary settling tank 320, a bioreactor 330, a secondary settling tank 340, a rapid filtration tank 350, and a pumping station 360. Since the operation of the sewage treatment facility 300 is obvious to those skilled in the art, detailed description will be omitted.

Meanwhile, when determining the treatment capacity of a sewage treatment facility (or sewage treatment plant), the site is usually selected taking into account up to 20 years. At this time, when the initially planned design flow rate is Q, the facility capacity is designed at 3Q based on the maximum daily capacity.

In particular, sewage pipes are divided into a combined type that includes rainwater and a classified type that excludes rainwater. In Korea, there are still many combined types and they are composed of a mixed type with a separate type. At this time, there is a large difference in rainfall when comparing the 20-year frequency rainfall with the 50-year frequency rainfall. Therefore, if designed in 5Q, facilities are excessive and construction costs are high, and sewage flows in much less than the designed flow rate in normal times, so the treatment efficiency is low. It can be said to be inefficient and uneconomical as the processing cost becomes lower and higher.

On the other hand, when rainfall begins, the initial rainfall has a slightly high level of pollution, but over time, the contaminants are washed away and the level of pollution is very low, so there is no need to treat it. Accordingly, when planning a sewage treatment plant, only the first physical treatment up to 3Q is discharged, and the secondary biological treatment is 1Q. In addition, rather than treating all 3Q with chemicals during rainfall, 3Q is treated up to the primary sedimentation tank 320 to precipitate even organic suspended solids for primary treatment, and then 2Q is bypassed and discharged, and only the design flow rate is maintained. Only phosphorus 1Q is introduced into the biological reactor 330, which is a secondary treatment facility, and is treated and then discharged.

Here, the reason for bypassing 2Q is that the sewage containing rainwater flowing in through the combined method has a low pollution concentration and only receives hydraulic effects regardless of the concentration load up to the primary sedimentation tank 320, so even if treated up to 3Q, the treatment efficiency is reduced. However, it gets a little worse and does not affect the overall processing system.

However, in this biological treatment, when the design flow rate is exceeded, sludge leaks from the secondary settling tank 340, making it difficult to maintain the MLSS (mixed liquor suspended solid) concentration in the bioreactor 330, and microbial shock due to rapid load changes ( Because treatment efficiency deteriorates due to shock, it takes a lot of time to recover, and it has a worse overall effect, only the design flow rate (Q) is introduced into the biological reactor 330. In other words, the facility capacity of the 3Q is a capacity determined considering the economics and treatment efficiency of the sewage treatment plant.

Referring again to FIG. 4, the management facility 400 is located on the ground floor above the sewage treatment facility 300, and controls and manages the storage facility 200 and the sewage treatment facility 300. For example, the management facility 400 can be used as a worker management building and a resident community center.

Meanwhile, Figure 6 is a diagram specifically showing a storage facility in a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention. Figure 6 a) is a plan view, and Figure 6 b) is a line A-A. is a cross-sectional view with a cut line, and Figure 7 is a diagram showing the opening and closing of the gate of the variable flow rate adjustment tank in a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention.

As shown in FIG. 6, a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention is simple in order to maximize the efficiency of the existing flow equalization tank in the case of the variable flow rate adjustment tank 220. Instead of installing only the inflow water storage tank 210 for the purpose, a treated water reuse storage tank 230 is installed in parallel, and a front gate 221 and a rear gate 222 are installed between the two storage tanks 210 and 230 to achieve the above. The variable flow rate adjustment tank 220 is operated variably. Here, reference numerals 211 and 223 represent partition walls installed to ensure smooth flow and agitation of influent water, respectively.

Specifically, the function of the variable flow rate adjustment tank 220 is to secure the storage amount of initial rainwater when the flow rate and water quality flowing into the initial rainwater storage tank or sewage storage tank, which is the inflow water storage tank 210, increases during rainfall, for example. , river water pollution can be reduced by reducing the amount of water discharged directly into the river with a flow rate of less than 3Q. In addition, maintenance costs such as cleaning and manpower can be reduced by reducing the size of the sewage inlet tank during clear weather and winter dry seasons. . In addition, by changing the specifications of the treated water reuse storage tank 230 on the other side to the operation of the influent water storage tank 210, a sufficient reusable flow rate can be secured.

As shown in a) of FIG. 7, the variable flow rate adjustment tank 220 of the storage facility 200 opens the front gate 221 and closes the rear gate 222 during initial rainfall, thereby controlling the variable flow rate. The storage space of the type flow rate adjustment tank 220 is used as the storage space of the inflow water storage tank 210. For example, 30% of the total storage space is allocated to the inflow water storage tank 210, 40% of the total storage space is allocated to the variable flow rate adjustment tank 220, and the total storage space is allocated to the treated water reuse storage tank 230. 30% of the storage space is allocated, and during rainfall, the storage space of the variable flow rate adjustment tank 220 is used as a storage space of the inflow water storage tank 210, so the storage space of the inflow water storage tank 210 is 70% of the total storage space. Can be reallocated by %.

As shown in b) of FIG. 7, the variable flow rate adjustment tank 220 of the storage facility 200 closes the front gate 221 and opens the rear gate 222 during clear weather or dry weather. The storage space of the variable flow rate adjustment tank 220 is used as the storage space of the treated water reuse storage tank 230. For example, 30% of the total storage space is allocated to the inflow water storage tank 210, 40% of the total storage space is allocated to the variable flow rate adjustment tank 220, and the total storage space is allocated to the treated water reuse storage tank 230. 30% of the storage space is allocated, and during clear weather or dry seasons, the storage space of the variable flow rate adjustment tank 220 is used as a storage space of the treated water reuse storage tank 230, thereby reducing the storage space of the treated water reuse storage tank 230. Space can be reallocated to 70% of total storage space.

In a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention, when the variable flow rate adjustment tank 220 is used as an inflow water storage tank 210, for example, the water flows rapidly during rainfall in a combined sewer conduit area. Contaminated water, e.g. The pollution level of the river can be reduced by storing polluted water below 3Q rather than discharging it directly into the river. In addition, water temperature can be naturally reduced by securing a large water surface area by creating a storage tank space considering the peak time in the high-temperature factory wastewater inflow area.

In addition, in a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention, when the variable flow rate adjustment tank 220 is used as a treated water reuse storage tank 230, the treated water is transferred to the treated water reuse storage tank ( 230), it is possible to discharge water to rivers that lack maintenance water during the day (or during necessary times), or to secure spare water resources for use as cleaning water and firefighting water.

Ultimately, in the case of a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention, the flow rate adjustment tank that acts as an existing flow rate equalization tank is used in parallel as a treated water reuse storage tank, so that treatment is performed in clear weather or during dry seasons. The storage facility is placed on the second basement level so that more than 70% of the water is used as a storage tank for reused water, and in case of rainfall, more than 70% is used as an inflow water retention tank that acts as a flow and load equalization tank. The first basement floor is used as a sewage treatment facility (or sludge treatment facility). treatment facility) and a management facility with a worker management building and a community center for residents is located on the first floor above ground to minimize the site space for sewage treatment facilities. In addition, storage facilities and sewage treatment facilities are placed in the basement as a duplex to reduce odor. It is possible to build an eco-friendly sewage treatment facility that does not generate wastewater.

[Sewage treatment method of a two-story sewage treatment facility equipped with a variable flow rate adjustment tank (220)]

Figure 8 is an operation flow diagram of a sewage treatment method of a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention.

Referring to FIG. 8, the sewage treatment method of a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank according to an embodiment of the present invention includes first, a storage facility 200 on the second basement floor, and a sewage treatment facility on the first basement floor ( 300) and a double-story sewage treatment facility consisting of a management facility 400 on the ground floor is operated (S101).

Next, the inflow water flowing into the inflow water storage tank 210 of the storage facility 200 on the second basement floor is confirmed (S102).

Next, check whether it is an initial rainfall or a specific time period (S103).

Next, in the case of initial rainfall or a specific time period, the front gate 221 of the variable flow rate adjustment tank 220 of the storage facility 200 installed on the second basement floor is opened and the rear gate 222 is closed (S104) ).

Next, 70% of the total storage space is used as an inflow water storage tank (210), and 30% is used as a treated water reuse storage tank (230) (S105). Specifically, at this time, the variable flow rate adjustment tank 220 opens the front gate 221 and closes the rear gate 222 during initial rainfall, so that the storage space of the variable flow rate adjustment tank 220 is filled with the inflow water. It is used as a storage space in the storage tank 210; 30% of the total storage space is allocated to the influent water storage tank 210, 40% of the total storage space is allocated to the variable flow rate adjustment tank 220, and 30% of the total storage space is allocated to the treated water reuse storage tank 230. % is allocated, and during rainfall, the storage space of the variable flow rate adjustment tank 220 is used as the storage space of the inflow water storage tank 210, and the storage space of the inflow water storage tank 210 is reallocated to 70% of the total storage space. do.

Meanwhile, the variable flow rate adjustment tank 220 opens the front gate 221 and closes the rear gate 222 when there is a specific time period when the inflow of influent water is high in the high-temperature factory wastewater inflow area. The storage space of the flow rate adjustment tank 220 may be used as the storage space of the inflow water storage tank 210.

Next, sewage treatment is performed in the sewage treatment facility 300 installed on the first basement floor (S106), and then the contaminated water is stored in the treated water reuse storage tank 230 (S107).

Next, if it is clear weather (or dry season) rather than rain or a specific time zone, the front gate 221 of the variable flow rate adjustment tank 220 of the storage facility 200 installed on the second basement floor is closed and the rear gate is closed. Open (222) (S108).

Next, 70% of the total storage space is used as a treated water reuse storage tank (230), and 30% is used as an influent water storage tank (210) (S109). Specifically, the variable flow rate adjustment tank 220 closes the front gate 221 and opens the rear gate 222 during clear weather or dry weather, so that the storage space of the variable flow rate adjustment tank 220 is processed. It is used as a storage space for the water reuse storage tank 230; 30% of the total storage space is allocated to the influent water storage tank 210, 40% of the total storage space is allocated to the variable flow rate adjustment tank 220, and 30% of the total storage space is allocated to the treated water reuse storage tank 230. % is allocated, and during clear weather or dry seasons, the storage space of the variable flow rate adjustment tank 220 is used as the storage space of the treated water reuse storage tank 230, so that the storage space of the treated water reuse storage tank 230 is the total storage space. Reallocated to 70% of space.

Next, sewage treatment is performed in the sewage treatment facility 300 installed on the first basement floor (S110), and then the treated water is stored or discharged into the river (S111).

Ultimately, according to an embodiment of the present invention, a sewage treatment facility consisting of a storage facility, a sewage treatment facility, and a management facility is configured as a double-story structure, and a gate is installed in the flow rate adjustment tank to vary the storage space of the storage facility during rain or clear weather. By operating it, the entire storage space can be utilized efficiently. In addition, the sewage treatment facility can be operated efficiently by variably adjusting the storage space of the inflow water storage facility and the treated water reuse storage tank using a variable flow rate adjustment tank. In addition, when maintaining sewer pipes, rainwater runoff load can be reduced to efficiently operate rainwater pumping stations and sewage treatment plants, and it can also be easily utilized in large-scale main sewer pipe maintenance projects.

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. For example, each component described as unitary may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. do.

110: Ground 120: Embankment
200: Storage facility
210: Inflow water storage tank 220: Variable flow rate adjustment tank
221: front gate 222: rear gate
230: Treatment water reuse storage tank 240: Inflow pipe
250: first discharge water channel 260: inflow water supply pump
270: treated water discharge pump 280: second discharge waterway
300: Sewage treatment facility
310: silt basin 320: primary sedimentation basin
330: Bioreactor 340: Secondary settling tank (final settling tank)
350: rapid filter paper 360: pumping station
400: Management facility

Claims (10)

It is placed on the second basement floor and is equipped with an inflow water storage tank 210, a variable flow rate adjustment tank 220, and a treated water reuse storage tank 230. The inflow water is stored in the inflow water storage tank 210 and supplied to a sewage treatment facility, a storage facility (200) that stores treated water treated in the sewage treatment facility in the treated water reuse storage tank (230) and whose storage space is variably operated by the variable flow rate adjustment tank (220);
It is placed on the first basement level above the storage facility 200, and treats the influent water supplied from the influent water storage tank 210 to remove floating contaminants and organic contaminants contained in sewage/wastewater and reuses the treated water. A sewage treatment facility (300) that stores water in a storage tank (230) or discharges it into a river; and
A management facility (400) disposed on the ground floor above the sewage treatment facility (300) and controlling and managing the storage facility (200) and the sewage treatment facility (300).
Including, the storage facility 200,
an inflow water storage tank (210) that stores inflow water and supplies it to the sewage treatment facility (300);
a treated water reuse storage tank (230) that stores the treated water treated in the sewage treatment facility (300); and is arranged in parallel between the inflow water storage tank 210 and the treated water reuse storage tank 230, and is provided with a front gate 221 and a rear gate 222, so that the storage space can be variably operated during initial rainfall or clear weather. A multi-story sewage treatment facility equipped with a variable flow rate control tank (220) in which the gate (221) and the rear gate (222) are opened and closed. According to paragraph 1,
The variable flow rate adjustment tank 220 of the storage facility 200 opens the front gate 221 and closes the rear gate 222 during initial rainfall, so that the storage space of the variable flow rate adjustment tank 220 is A multi-story sewage treatment facility equipped with a variable flow rate adjustment tank, which is used as a storage space for the inflow water storage tank (210). According to paragraph 2,
30% of the total storage space is allocated to the influent water storage tank 210, 40% of the total storage space is allocated to the variable flow rate adjustment tank 220, and 30% of the total storage space is allocated to the treated water reuse storage tank 230. % is allocated, and during rainfall, the storage space of the variable flow rate adjustment tank 220 is used as the storage space of the inflow water storage tank 210, and the storage space of the inflow water storage tank 210 is reallocated to 70% of the total storage space. A two-story sewage treatment facility equipped with a variable flow rate adjustment tank. According to paragraph 1,
The variable flow rate control tank 220 of the storage facility 200 closes the front gate 221 and opens the rear gate 222 during clear weather or dry weather, thereby creating a storage space for the variable flow rate control tank 220. A multi-story sewage treatment facility equipped with a variable flow rate adjustment tank, which is used as a storage space for the treated water reuse storage tank (230). According to paragraph 4,
30% of the total storage space is allocated to the influent water storage tank 210, 40% of the total storage space is allocated to the variable flow rate adjustment tank 220, and 30% of the total storage space is allocated to the treated water reuse storage tank 230. % is allocated, and during clear weather or dry seasons, the storage space of the variable flow rate adjustment tank 220 is used as the storage space of the treated water reuse storage tank 230, so that the storage space of the treated water reuse storage tank 230 is the total storage space. A two-story sewage treatment facility equipped with a variable flow rate adjustment tank that is reallocated to 70% of the space. According to paragraph 1,
The variable flow rate adjustment tank 220 is operated by opening the front gate 221 and closing the rear gate 222 during a specific time period when the inflow amount of influent water is high in the high temperature factory wastewater inflow area. A multi-story sewage treatment facility equipped with a variable flow rate adjustment tank, characterized in that the storage space of (220) is used as a storage space of the inflow water storage tank (210). a) operating a multi-story sewage treatment facility consisting of a storage facility (200) on the second basement floor, a sewage treatment facility (300) on the first basement floor, and a management facility (400) on the ground floor;
b) checking the inflow water flowing into the inflow water storage tank 210 of the storage facility 200;
c) Checking whether it is a specific time period with initial rainfall or high flow rate;
d) In the case of a specific time period where the initial rainfall or flow rate is high, the front gate 221 and the rear gate of the variable flow rate adjustment tank 220 of the storage facility 200 installed on the second basement floor are opened and closed to adjust the variable flow rate. Using the adjustment tank 220 as the inflow water storage tank 210;
e) performing sewage treatment in a sewage treatment facility (300) installed on the first basement floor and storing contaminated water in the treated water reuse storage tank (230);
f) If it is not a specific time period where the initial rainfall or flow rate is high, the front gate 221 and the rear gate of the variable flow rate adjustment tank 220 of the storage facility 200 installed on the second basement floor are opened and closed, and the variable flow rate control tank 220 is opened and closed. Using the flow rate adjustment tank (220) as the treated water reuse storage tank (230);
g) A sewage treatment method of a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank, which includes the steps of performing sewage treatment in the sewage treatment facility 300 installed on the first basement floor and storing or discharging the treated water into a river. . The method of claim 7, wherein the storage facility 200 in step a) is,
an inflow water storage tank (210) that stores inflow water and supplies it to the sewage treatment facility (300);
a treated water reuse storage tank (230) that stores the treated water treated in the sewage treatment facility (300); and
It is arranged in parallel between the inflow water storage tank 210 and the treated water reuse storage tank 230, and is provided with a front gate 221 and a rear gate 222, so that the storage space is variably operated during initial rainfall or clear weather. (221) and a variable flow rate adjustment tank (220) in which the rear gate (222) opens and closes. A sewage treatment method of a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank (220). According to clause 8,
In step d), the variable flow rate adjustment tank 220 opens the front gate 221 and closes the rear gate 222 during initial rainfall, so that the storage space of the variable flow rate adjustment tank 220 is filled with the inflow water. It is used as a storage space in the storage tank 210; 30% of the total storage space is allocated to the influent water storage tank 210, 40% of the total storage space is allocated to the variable flow rate adjustment tank 220, and 30% of the total storage space is allocated to the treated water reuse storage tank 230. % is allocated, and during rainfall, the storage space of the variable flow rate adjustment tank 220 is used as the storage space of the inflow water storage tank 210, and the storage space of the inflow water storage tank 210 is reallocated to 70% of the total storage space. And
In step f), the variable flow rate adjustment tank 220 closes the front gate 221 and opens the rear gate 222 during clear weather or dry weather, so that the storage space of the variable flow rate adjustment tank 220 is closed. It is used as a storage space for the treated water reuse storage tank 230; 30% of the total storage space is allocated to the influent water storage tank 210, 40% of the total storage space is allocated to the variable flow rate adjustment tank 220, and 30% of the total storage space is allocated to the treated water reuse storage tank 230. % is allocated, and during clear weather or dry seasons, the storage space of the variable flow rate adjustment tank 220 is used as the storage space of the treated water reuse storage tank 230, so that the storage space of the treated water reuse storage tank 230 is the total storage space. A sewage treatment method for a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank, characterized in that the space is reallocated to 70% of the space. According to clause 8,
In step d), the variable flow rate adjustment tank 220 opens the front gate 221 and closes the rear gate 222 when there is a large inflow of influent water in the high-temperature factory wastewater inflow area. A sewage treatment method of a multi-story sewage treatment facility equipped with a variable flow rate adjustment tank, characterized in that the storage space of the variable flow rate adjustment tank (220) is utilized as a storage space of the influent water storage tank (210).