KR101250076B1 - Rainwater and Sewage Recycling System - Google Patents

Abstract

The present invention provides a first water supply facility, a sewage treatment facility, and a second treated water from the sewage treatment facility, to send the first treatment water and the first treatment water from the storm water treatment facility to the second destination. A second water supply facility, an associated water supply facility for sending the second treated water to the first place of use, and a reprocessing facility for reprocessing the second treated water flowing along the linked water supply facility to have a water quality above the level available at the first place of use. Provides rainwater and sewage reuse system, including.

Description

Rainwater and Sewage Recycling System

The present invention relates to a system for treating and recycling rainwater and sewage. For reference, the system herein refers to a complex apparatus having a water treatment facility.

Water is one of the essential factors for human survival and living. However, there is a shortage of water in the world as well as in Korea, and various water reuse schemes are suggested to solve this water shortage problem. Particularly, reusing abundance is something that humankind has been doing for a long time, and in some countries it can be confirmed that abundance is reused in everyday life.

For reference, there are many difficulties in collecting rainwater in Korea because of the large difference in rainfall between seasons. In particular, rainfall is concentrated during the summer months.

The collected water storm can be reused as the water after properly treated, but it is currently in a state of lacking effective treatment of stormwater. Since various pollutants present in the air and the surface are washed and collected by rainwater, there is a problem that it is difficult to reuse as water when the collected rainwater cannot be properly treated.

The present invention is to provide a system that can reuse the sewage, including rainwater and can be used in conjunction with rainwater and sewage.

1) According to an embodiment of the present invention, the collecting facility to collect rainwater; A storm water treatment facility for treating storm water from the water collecting facility; A first water supply system for sending the first treated water treated by this storm water treatment facility to a first place where it can be used as water; A sewage treatment facility for treating sewage from a sewage generating source; A second water supply system for sending the second treated water treated by the sewage treatment facility to a second place where water quality is lower than that of the first treated water; A linked water supply facility for sending the second treated water to the first place of use; A storm water and sewage reuse system is provided that includes a reprocessing facility for reprocessing the second treated water sent by the associated water supply facility to have a quality of water above the level available at the first place of use.

Here, the water collecting equipment includes a roof surface water collecting device, a green surface water collecting device and a road surface water collecting device each having a roof, a green space, and a road as a collecting place, and the rainwater collecting device includes a roof surface water collecting device having different water quality. In addition, it can be configured to be able to independently process rainwater from the green surface water collecting device and the road surface collecting device.

In addition, the storm treatment facility and the primary treatment facility; A storage tank for storing the treated water treated by the primary treatment facility; It may include a secondary treatment facility for reprocessing the treated water stored in this storage tank. At this time, the secondary treatment facility may include a disinfection device for sterilization treatment.

In addition, the sewage treatment facility may include a water treatment device using a separator, and the reprocessing facility may include an advanced oxidation treatment device.

2) According to an embodiment of the present invention, the water collecting facility to collect rainwater; A storm water treatment facility for treating storm water from the water collecting facility; A first water supply system for sending the first treated water treated by this storm water treatment facility to a first place where it can be used as water; A sewage treatment facility for treating sewage from a sewage generating source; A second water supply system for sending the second treated water treated by the sewage treatment facility to a second place where water quality is lower than that of the first treated water; A linked water supply facility for sending the second treated water to the storm water treatment facility; And a reprocessing facility for reprocessing the second treated water sent by the associated water supply facility, wherein the collecting facility includes a green surface collecting device having a green area as a collecting place, and the storm water collecting facility includes the green surface collecting water. And a recording device having an artificial soil layer composed of media and green soil, which processes rainwater from the device, wherein the associated water transport facility sends the second treated water to the recording device, and the reprocessing facility utilizes a natural purification capability. Rainwater and sewage reuse systems, including artificial wetlands, can be provided.

3) According to an embodiment of the present invention, the collecting facility to collect rainwater; A storm water treatment facility for treating storm water from the water collecting facility; A first water supply system for sending the first treated water treated by this storm water treatment facility to a first place where it can be used as water; A sewage treatment facility for treating sewage from a sewage generating source; A second water supply system for sending the second treated water treated by the sewage treatment facility to a second place where water quality is lower than that of the first treated water; Rainwater and sewage reuse system may be provided that includes an associated water supply facility for sending rainwater from the collecting facility to a transfer line for transferring sewage from the sewage source to the sewage treatment facility to incorporate rainwater into sewage.

Here, the water collecting facility may include a road surface collecting device having a road as a collecting place, and the associated water collecting facility may send rainwater from the road surface collecting device to the transfer line.

1 is a block diagram showing a rainwater and sewage reuse system according to the present invention.
FIG. 2 is a cross-sectional view of the roof surface storm water treatment apparatus illustrated in FIG. 1.
3 is a cross-sectional view showing the road surface storm water treatment apparatus shown in FIG.
4 is a cross-sectional view showing the artificial wetland shown in FIG.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention. For the sake of convenience, the size, line thickness, and the like of the components shown in the drawings referenced in the description of the present invention may be exaggerated somewhat. In addition, since terms used in the description of the present invention are defined in consideration of functions in the present invention, they may be changed according to intentions of users, operators, and the like. Accordingly, definitions of these terms should be made based on the contents throughout the specification.

1 is a configuration diagram showing the rainwater and sewage recycling system according to the present invention, as shown in Figure 1, the rainwater and sewage recycling system according to the present invention is a water collecting facility 110 to collect the rainwater, the water collecting facility ( Rainwater treatment facility 120 for treating rainwater collected by 110, first water supply facilities (132, 134, 136) for sending the treated water treated by this stormwater treatment facility 120 to the first place of use, and sewage from the sewage source Sewage treatment facility 220 to be treated, second water supply facilities 232 and 234 for sending the treated water treated by this sewage treatment facility 220 to a second place of use, and first to third for linkage between sewage and sewage. It includes associated water supply facilities (310, 320, 330).

The water collecting facility 110 includes a roof surface collecting device 112, a green surface collecting device 114, and a road surface collecting device 116 having roofs, green areas, and roads as collection points, respectively.

Rainwater treatment facility 120 is from the roof surface storm water treatment device 112, the roof surface storm water treatment device 121 to process the rainwater (water quality is better than rain, better than the road surface rainwater), green surface water collecting device 114 Rainfall from rainwater treatment system 122, road surface water collecting device 116 (water quality is better than rooftop rainwater, water quality is worse than rooftop rainwater) It is the worst) to the first surface treatment equipment consisting of a road surface storm water treatment device (123). The storm water treatment facility 120 is further provided by a first storage tank 124 for storing the first treated water by the roof storm water treatment device 121, the green surface and the road surface storm water treatment devices 122 and 123. Stainless steel metal film device 126, stainless steel, which highly filters the treated water from the first and second storage tanks 124 and 125; Disinfection device 127 for sterilizing the treated water from the metal film device 126, and TiO2 metal film device 128 for high filtration and sterilization of the treated water from the stainless steel metal film device 126. It further comprises a secondary treatment facility consisting of.

According to this, the primary treatment facilities of the storm water treatment facility 120 independently processes the rainwater from the roof surface, the green surface and the road surface water collecting devices 112, 114, and 116, and the water quality may also be different according to the different collection places. The primary treatment for rainwater from the roof surface, the green surface, and the road surface water collecting devices 112, 114, and 116 which are not available can be effectively performed.

2 is a cross-sectional view showing the roof surface storm treatment apparatus 121.

The roof surface storm treatment apparatus 121 includes a roof surface storm treatment tank 121A, a pollutant treatment mat 121B, and a pollutant filtration / adsorption means 121C. The roof surface storm water treatment tank 121A has an inlet 121A1 and an outlet 121A2. The inflow chamber 121A3, the first and second processing chambers 121A4 and 121A5, the outflow chamber 121A6, and the overflow chamber 121A7 are provided inside the roof surface storm water treatment tank 121A. The pollutant treatment mat 121B is provided in the first treatment chamber 121A4, and the pollutant filtration / adsorption means 121C is provided in the second treatment chamber 121A5, respectively. The pollutant treatment mat 121B is made of a fiber material extracted from wood as a porous mat, and the pollutant filtration / adsorption means 121C is a piece of expanded polypropylene (EPP) material, activated carbon, a scrubber, a mosquito net, and a ring lace. It includes a media consisting of one or more selected. This contaminant filtration / adsorption means 121C is an optional application configuration that can be excluded.

Here, the roof surface storm water treatment tank 121A is configured to process rainwater from the roof surface water collecting device 112 flowing through the inlet 121A1 as follows.

Rainwater is stored in inlet chamber 121A3. When the amount of rainwater stored in the inflow chamber 121A3 reaches a certain level, the rainwater overflows and flows into the processing chambers 121A4 and 121A5 and then communicates with each other after the first processing chamber 121A4 and the second processing chamber ( 121A5) is processed by the contaminant treatment mat 121B and the contaminant filtration / adsorption means 121C while passing through 121A5), and then flows into the outflow chamber 121A6. When the amount of the primary treated water stored in the outflow chamber 121A6 reaches a certain level, the primary treated water overflows and flows out of the outlet 121A2. If the rainwater flows in excess of the processing capacity, some rainwater from the inflow chamber 121A3 flows into the outflow chamber 121A6 through the overflow chamber 121A7 without passing through the processing chambers 121A4 and 121A5.

The green surface storm water treatment apparatus 122 is a greening apparatus including a vegetation layer for planting green tree species, an artificial soil layer provided under the vegetation layer, and a filtration mat provided under the artificial soil layer. The artificial soil layer is composed of filter media for pollutant removal and green soil as plant growth base. The filter mat serves to suppress the leakage of suspended solids and contaminants from the media and green soil.

3 is a cross-sectional view showing the road surface storm water processing apparatus 123.

The road surface storm water treatment device 123 includes a road surface storm water treatment tank 123A, a porous structure receiver 123B, and pollutant filtration / adsorption means 123C. The road surface storm water treatment tank 123A has an inlet 123A1 and an outlet 123A2. The road surface storm water treatment tank 123A is provided with an inflow chamber 123A3, a processing chamber 123A4, and an outflow chamber 123A5, and the inflow chamber 123A3 has a contaminant receiver 123B and a processing chamber ( 123A4) is provided with pollutant filtration / adsorption means 123C, respectively. The contaminant filtration / adsorption means 123C of the road surface storm water treatment apparatus 123 includes a media including any one or more selected from pieces of expanded polypropylene material, activated carbon, a loofah, a mosquito net, and a ring lace.

The treatment tank 122A of the road surface storm water processing device 123 is configured to process rainwater from the road surface water collecting device 116 flowing through the inlet 122A1 as follows.

Rainwater is introduced into the inflow chamber 123A3 and the contaminants are removed by the debris receiver 123B during the process of passing through the inflow chamber 123A3. Rainwater from the inflow chamber 123A3 flows into the treatment chamber 123A4 and is processed by the treatment action of the contaminant filtration / adsorption means 123C while passing through the treatment chamber 123A4 and then into the outflow chamber 123A5. Inflow. Primary treatment water flowing into the outflow chamber 121A6 flows out to the outlet 123A2.

The first storage tank 124 and the second storage tank 125 are connected to each other by a transfer line to send or receive the stored treatment water. Thus, the amount of treated water stored in the first and second storage tanks (124, 125) can be appropriately adjusted according to the situation.

The first water supply facilities (132, 134, 136) is a transfer line 132 for transferring the treated water in the first storage tank 124, a transfer line 134 for transferring the treated water sterilized by the disinfection device 127, TiO2 metal It comprises a transfer line 136 for transporting the treated water is highly filtered and sterilized by the membrane device (128). The treated water transferred from the first storage tank 124 along the transfer line 132 may be used as general purpose water for sprinkling water, fire fighting water, cleaning water, and the like. The treated water transferred along the transfer line 134 from the disinfection device 127 may be used as hydrophilic water (eg, for ponds, artificial fountains) or indoor water (eg, for toilets). The treated water transferred from the TiO 2 metal film device 128 along the transfer line 136 may be discharged or used as hydrophilic water or indoor water.

Sewage treatment facility 220 is a water treatment device including a separator and a membrane reaction tank. The second water supply facilities 232 and 234 include two transport lines. The treated water transferred from the sewage treatment facility 220 along one transfer line 232 of the second water supply facilities 232 and 234 may be discharged or used as general purpose water. On the other transfer line 234 of the second water supply facilities 232 and 234, a reverse osmosis device 410 is installed to reprocess the treated water from the sewage treatment facility 220. According to the reverse osmosis membrane of the reverse osmosis apparatus 410, the dissolved water is removed from the treated water from the sewage treatment facility 220. In addition, the pore of the reverse osmosis membrane is 1 / 10,000 micrometers or less, and can remove colloidal substances, bacteria, and the like. The treated water reprocessed by the reverse osmosis apparatus 410 may be used as industrial water.

The amount of water collected by the road surface water collecting device 116 is much higher than the amount of water collected by the water collecting device 114 when it melts. It may not be possible to process by (123). (Excess treatment capacity) Accordingly, when the rainwater from the road surface water collecting device 116 is melted, it may be sent to be processed by the storm water treatment apparatus 122.

The first associated water supply facility 310 includes a transfer line for sending the treated water treated by the sewage treatment facility 220 to a first place of use requiring hydrophilic water or indoor water. When the rainfall is insufficient, since the amount of treated water that can be sterilized by the disinfecting device 127 is inevitably difficult to cover the amount used, the first associated water supply facility 310 is useful in such a case.

The treated water quality treated by the sewage treatment facility 220 may not be suitable for use as hydrophilic water or indoor water at the first place of use. Accordingly, as a reprocessing facility for reprocessing the treated water from the sewage treatment facility 220 to the disinfection device 127 to have a level or higher water quality than that of the treated water from the sewage treatment facility 220 on the transfer line of the first associated water supply facility 310. Advanced oxidation treatment device 420 is installed. The advanced oxidation treatment apparatus 420 may be to treat the treated water from the reservoir and the sewage treatment facility 220 stored in the reservoir using ultraviolet rays having a wavelength of 180 nm to 280 nm, and for the generation of ultraviolet rays -O3 quartz tube lamps may be included.

The second associated water supply facility 320 is also very useful when there is a shortage of rainfall, and includes a transport line for transporting the treated water from the sewage treatment facility 220 to a greening device, which is a rainwater treatment device 122. The artificial wetland 430 is installed as a facility for reprocessing the treated water from the sewage treatment facility 220 on the transfer line of the second connected water supply facility 320.

4 is a cross-sectional view of the artificial wetland 430, as shown in Figure 4 artificial wetland 430 is a concrete structure 10, a plurality of drainage partitions 30 and freshwater partitions 40, The cultured soil layer 21, 23 is included.

The concrete structure 10 is formed so that the floor is flat. The inlet 10a is provided at one side of the concrete structure 10 and the outlet 10b is provided at the other side, and the treated water from the sewage treatment facility 220 which is transported along the transfer line of the second associated water supply facility 320. Is introduced into the inlet (10a) of the concrete structure 10 and outflow to the outlet (10b).

Each of the drainage partitions 31, 33, 35, and 37 partitions the inside of the concrete structure 10, and has a constant height so that water in the concrete structure 10 is stored, and a bottom thereof is the bottom of the concrete structure 10. Spaced apart a certain distance from the upper side.

Each of the freshwater partition walls 41, 43, 45, and 47 has a height such that the water flowing to the outlet port 10b flows after passing through the drain holes 31a, 33a, 35a, 37a of the drainage partition wall 30 after being dehydrated. At least one is provided between each of the drainage partitions 31, 33, 35, and 37 while being lower than the drainage partition 30, and partitions between each of the drainage partitions 31, 33, 35, 37.

The culture soil layer (21, 23) is covered in the interior of the concrete structure 10 to plant the wetland plants that can naturally purify the water flowing into the concrete structure (10). The cultured soil layers 21 and 23 are composed of first and second cultured soil layers 21 and 23 stacked on each other. The upper first culture layer 21 is preferably applied to include any one or more selected from sand, pumice, siliceous sedimentary rock and charcoal having a cation exchange capacity (C.E.C). The second culture soil 23 allows the sludge to settle smoothly to the bottom of the concrete structure 10. The aquatic plant 20 planted in the first culture soil layer 21 is preferably reeds, irises, buds and the like that are perennial wetland plants.

The third associated water supply facility 330 includes a transport line for transporting rainwater from the road surface water collecting device 116 to the sewage transport line. Here, the sewage transfer line means a transfer line for transferring sewage from the sewage generation source to the sewage treatment facility 220. The rainwater that is transported along the transfer line of the third connection water supply facility 330 and flows into the sewage transfer line is mixed with the sewage to improve the quality of the sewage.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

110: water collecting facility
120: stormwater treatment facility
132, 134, 136: first water supply equipment
220: sewage treatment facility
232, 234: 2nd water transportation equipment
310, 320, 330: first to third connection water transport equipment
410: reverse osmosis device
420: Advanced Oxidation Processing Equipment
430: artificial wetland

Claims (8)

Sending the rainwater collecting facility 110 to collect rainwater, the stormwater treatment facility 120 to process rainwater collected by the stormwater collecting facility 110, and the treated water treated by the stormwater treatment facility 120 to the first place of use. The sewage treatment facility (220) having a first water supply facility (132, 134, 136), a separator and a membrane reaction tank for treating sewage from the sewage generating source, and the treated water treated by the sewage treatment facility (220) to a second place of use. A second water supply facility (232,234) for sending, and the first to the third connection water supply facilities (310, 320, 330) for the connection and use of rainwater and sewage,
The water collecting facility 110 includes a roof surface collecting device 112 having a roof as a collecting place, a green surface collecting device 114 having a green area as a collecting place, and a road surface collecting device 116 having a road as a collecting place. ,
The storm water treatment facility 120 is a roof surface storm water treatment apparatus 121 for processing rainwater from the roof surface water collecting device 112, green surface storm water treatment apparatus for processing rainwater from the green surface water collecting device 114. 123 and a road surface storm water processing device 123 for processing rainwater from the road surface water collecting device 116,
The first associated water supply facility 310 includes a transport line for transporting the treated water from the sewage treatment facility 220 to a first place of use, and on the transport line of the first associated water supply facility 310, a sewage treatment facility. An advanced oxidation treatment apparatus 420 is installed to reprocess the treated water from the 220 to have water quality above the level available at the first use place.
The second connected water supply facility 320 includes a transport line for transporting the treated water from the sewage treatment facility 220 to the rainwater treatment system 122, and a transport line of the second connected water supply facility 320. In the phase, the artificial wetland 430 is installed as a facility for reprocessing the treated water from the sewage treatment facility 220,
The third associated water supply facility 330 includes a transport line for transporting rainwater from the road surface collection device 116 to the sewage transport line, and is transported along the transport line of the third associated water supply facility 330 to transport sewage. Rainwater and sewage reuse system, characterized in that rainwater flowing into the line is mixed with sewage. The method according to claim 1,
The roof surface storm treatment apparatus 121 includes a roof surface storm treatment tank 121A, a pollutant treatment mat 121B, and a pollutant filtration / adsorption means 121C, and the treatment tank 121A includes an inlet 121A1. And an outlet 121A2, the inlet chamber 121A3, the first and second treatment chambers 121A4 and 121A5, the outlet chamber 121A6, and the overflow chamber connected to each other so as to communicate with each other. 121A7 is provided, the pollutant treatment mat 121B is installed in the first treatment chamber 121A4, the pollutant filtration / adsorption means 121C is installed in the second treatment chamber 121A5,
The green surface rainwater treatment device 122 includes a vegetation layer for planting green plants, artificial soil layer provided under the vegetation layer, the filter mat provided under the artificial soil layer,
The road surface storm water treatment device 123 includes a road surface storm water treatment tank 123A, a porous structure receiving trap 123B, and pollutant filtration / adsorption means 123C, and the road surface storm water treatment tank 123A. Has an inlet 123A1 and an outlet 123A2, and the storm water treatment tank 123A has an inlet chamber 123A3, a treatment chamber 123A4, and an outlet chamber 123A5 therein, the inlet chamber 123A3 The sewage receiving unit (123B) is installed, the treatment chamber (123A4) is a rainwater and sewage reuse system, characterized in that the pollutant filtration / adsorption means (123C) is installed. The method according to claim 2,
The storm water treatment facility 120 is configured by the first storage tank 124 for storing the first treated water by the roof surface storm water treatment device 121, the green surface and the road surface storm water treatment devices 122 and 123. A second storage tank 125 for storing the treated water which has been differentially treated, a stainless steel metal film device 126 for highly filtering the treated water from the first and second storage tanks 124, 125, and the stainless steel metal film device 126 A sterilization apparatus 127 for sterilizing the treated water from) and a TiO2 metal membrane apparatus 128 for highly filtering and sterilizing the treated water from the stainless steel metal film apparatus 126. ,
The first water supply facility (132, 134, 136) is a transfer line 132 for transferring the treated water in the first storage tank 124, a transfer line 134 for transferring the treated water that has been sterilized by the disinfection device (127) And a transfer line 136 which transfers the treated water which has been highly filtered and sterilized by the TiO 2 metal film device 128.
The second water supply facilities 232 and 234 discharge the treated water from the sewage treatment facility 220 or transport the treated water from the order treatment facility 220 to be used as industrial water. Rainwater and sewage, comprising a second transfer line 234, the second transfer line 234 is provided with a reverse osmosis device 410 for reprocessing the treated water from the sewage treatment facility 220 Reuse System.



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