KR20240074950A - Development of LID-based Rainwater Pre-treatment Complex Water Purification System - Google Patents

Abstract

The present invention is installed in groundwater, river water, rainwater, sewage treatment plants, reservoirs, rivers, streams, etc. so that it can be supplied to water pipes, facility houses, orchards, fish farms, etc., to remove rainwater, salt and green algae, and to provide adsorption and RO (Reverse Osmotic) water purification functions. Equipped with a water purification function, backwashing is performed using raw water or purified water or diluted hydrogen peroxide, and chemicals such as hydrogen peroxide are introduced into the metering pump to improve the performance of the adsorption water purification material. It is about a complex purification system of rainwater and saline water that adsorbs and decomposes salt, green algae, heavy metals, arsenic, fluorine, etc. and supplies it to each home, school, government office, facility house, orchard, fish farm, etc. When it rains frequently and water is abundant, Rainwater or valley water can be collected, purified, and stored for priority use. When it does not rain or there is a water shortage such as a drought, contaminants such as salt or green algae in groundwater or river water can be collected, purified, and stored using the RO water purification method. We solve water problems by minimizing the cost of water supply by supplying the same water to each home, school, government office, and bathhouse, or by providing agricultural water and purified water that can be used in facility houses, orchards, or fish farms, etc. It has the effect of increasing the purification efficiency of supplied water.

Description

Development of LID-based Rainwater Pre-treatment Complex Water Purification System}

The present invention relates to a rainwater complex water purification system. More specifically, it is installed in groundwater, river water, rainwater, sewage treatment plants, reservoirs, rivers, streams, etc. to supply water to waterworks, facility houses, orchards, fish farms, etc. to purify rainwater, salt, and green algae. It is equipped with adsorption and RO (Reverse Osmotic) water purification functions. For the water purification function, backwashing is performed using raw water or purified water or using hydrogen peroxide diluted water. To improve the performance of the adsorption water purification material, hydrogen peroxide and A complex water purification system for rainwater and saline water that absorbs and decomposes salt, green algae, heavy metals, arsenic, fluoride, etc. contained in the water by flowing the same chemical through a metering pump and supplies it to each home, school, government office, facility house, orchard, fish farm, etc. It's about.

In general, water pollution is a phenomenon in which the water quality of natural water bodies is polluted due to the inflow of waste materials. Natural water bodies are generally referred to as visible objects such as rivers, lakes, seawater, etc. It refers to visible surface water, and waste materials refer to liquid waste discharged from civilized society, such as household wastewater and factory wastewater. And if it changes unfavorably, it means that its value and appearance as water for use will deteriorate, and it will have a negative impact on environmental conservation and public health.

Today, industrialized countries are actively conducting research, legal regulations, and investment in facilities to prevent pollution in their own waters and restore already polluted water quality, and international cooperation is underway for global environmental conservation.

The first time that the modern concept of water pollution became an issue was in England in the late 19th century. At the time, London enacted the Sewage Exclusion Act in 1855 as a measure to deal with the recurring cholera epidemic and promoted the discharge of sewage through sewers. As a result, large amounts of untreated sewage was discharged into the Thames River, where it began to rapidly become polluted.

As a measure, the River Pollution Prevention Act was promulgated in 1876, and efforts to preserve water quality continued. In other developed countries, natural water bodies began to be polluted due to the emergence of large-scale factories after the Industrial Revolution and the discharge of factory wastewater and urban wastewater due to the concentration of population in cities. Efforts were made to preserve water quality throughout the 19th and 20th centuries. there is.

In particular, after World War II, environmental destruction and pollutant emissions resulting from rapid population growth and industrial growth expanded globally, making international cooperation necessary to preserve the global environment. Thus, in 1972, there was a United Nations conference on human environmental problems in Stockholm, and the issue of water conservation was also discussed at this conference. In particular, marine pollution caused by oil leaks from oil tankers is an international problem, and regulatory treaties are being signed through international organizations such as the Intergovernmental Maritime Consultation Period.

In Korea, many factories were built in accordance with the national economic development plan that had been promoted since the early 1960s, industrial activities increased rapidly, and population concentration in cities also accelerated. At the same time, the discharge of factory wastewater and urban wastewater also increased rapidly, and water pollution in major rivers and coastal areas began to become a social problem from the late 1960s.

In order to continue to promote the economic development plan and suppress national environmental pollution, including water pollution, to a minimum level, the government promulgated the Pollution Prevention Act in 1963, and its enforcement ordinance and enforcement regulations were promulgated in 1964 and 1967.

However, this law was insufficient to regulate the ever-increasing environmental pollution, and in order to deal with land pollution from an environmental conservation perspective, the Pollution Prevention Act was progressively abolished in 1977 and the Environmental Conservation Act and the Marine Pollution Prevention Act were newly promulgated, followed by enforcement ordinances and enforcement thereof. Rules were also promulgated. And the Environmental Protection Agency (currently the Ministry of Environment) was launched to be in charge of environmental conservation. The Environmental Conservation Act was revised in 1990 into the Framework Act on Environmental Policy, the Air Quality Conservation Act, and the Water Quality Conservation Act.

Meanwhile, green algae (water-bloom) is a general term for eutrophic lakes (a general term for water bodies in inland basins) and is hydrologically classified into lakes, swamps, marshes, and wetlands. A lake is one whose deepest part is more than 5m. , A swamp refers to a place where the deepest part is less than 5m and is lush with submerged plants, and a swamp is a place where water purified plants are abundant here and there, and a wetland is a place where the deepest part is less than 1m and is luxuriantly covered with wetland plants.) This refers to a phenomenon in which green algae or blue-green algae, which are phytoplankton, increase significantly in slow-flowing rivers, changing the color of the water to green. In some lakes and rivers, such as Gyeongancheon Stream in Paldang Lake in Korea, the water turns yellow-brown as the number of diatoms increases. When the surface of the lake is covered, sunlight is blocked into the water, and additional dissolved oxygen does not flow in, reducing the amount of dissolved oxygen in the water. When this happens, fish and aquatic life die, bad smells are created, and the ecosystem of the water area is destroyed, causing many problems in social, economic, and environmental aspects.

The most serious problem is the toxins produced by toxic algae. In 1878, the first case of an animal dying due to green algae was reported in Australia. Since then, damage to livestock and wild animals has occurred due to algae toxins in various parts of the world, including the United States, Canada, the United Kingdom, and Japan. Although no animal damage has occurred in Korea, green algae has recently occurred frequently in lakes used as water sources. Therefore, to prevent future risks, green algae that produce toxic substances must be removed and prevented.

Once nutrients enter the water, if they are not removed, they will remain in the aquatic ecosystem and green algae will recur. To prevent green algae, domestic sewage should be purified and nutrients should not flow into the sea or lake. In addition, plants must be planted near rivers and lakes to absorb and remove nutrients that have already entered the water.

The prior art related to the system for removing or purifying water to prevent water pollution as described above is in Domestic Patent Publication No. 10-2017-0121015, where water pollutants such as oil, green algae, and red algae are generated on the water surface; Water-based pollutants absorb water-based pollutants and allow the absorbed water-based pollutants to pass through the adsorbent cloth to adsorb the water-based pollutants through the adsorbent cloth. The adsorbent cloth is rolled periodically or continuously to maintain the adsorption performance of the adsorbent cloth contaminated with water-based pollutants. A removal device is disclosed, and in Domestic Patent Publication No. 10-2017-0078337, a material for preventing, delaying or removing green algae contains copper sulfide, and can effectively prevent, delay or remove green algae. Costs to prevent, delay or eliminate algae blooms can be significantly reduced. In addition, the material for preventing, delaying or removing green algae according to the present invention is in the form of masterbatch chips, yarn or fabric, so it is easy to handle and can be used for a long period of time because copper sulfide is slowly released. In addition, a filter containing a material for preventing, delaying or removing green algae in a predetermined container is easy to install even in narrow waterways, and the material for preventing, delaying or removing green algae is configured to enable recycling of the polymer resin after performance has deteriorated, and its uses. is disclosed, and in Domestic Patent Publication No. 10-0519071, mountain valley water is stored in a water intake manhole, heavy metal substances contained in the water flowing in from the water intake manhole through a connection pipe are removed, and the water is used as drinking water. In the prefabricated simple water purification device for removing heavy metal substances that purifies water, there is a cylindrical lower purified water tank connected to a discharge pipe by bolting on the concrete pouring base and a flange attached to the upper part of the lower purified water tank. A circular flange is coupled with a fastening bolt on the central lower surface of the upper purified water tank with a lid with a central circular hole and the lower purified water tank, and the circular flange is integrally coupled to the circular flange from the lower part to the upper part. A filter manhole having a tapered portion formed to spread to increase the radius and a cylindrical vertical wall extending from the upper part of the tapered portion and having a plurality of water holes formed on its circumferential surface, and a filter manhole inserted into the inner wall of the vertical wall where the water holes of the filter manhole are formed. It is seated on a cylindrical filter and a cylindrical filter in the filter manhole, and a plurality of holes are formed on the lower surface, thereby covering the upper surface of the filter manhole and the cylindrical container with an open top filled with a charcoal red clay ball filter agent. A water inlet pipe bent in a square shape through which water flows into the water intake manhole that takes in mountain valley water is attached, and a diagonal-shaped air hole pipe is attached to the side of the water inlet pipe and bolted to the upper surface of the filter manhole. A prefabricated simple water purifier for removing heavy metal substances comprising a fastened cover member and a sediment discharge pipe connected in communication with the lower through hole of the filter manhole to discharge sediment settled in the lower portion of the tapered portion of the filter manhole to the outside of the foundation concrete. A device is disclosed.

However, the above prior arts are seated on a cylindrical filter in a manhole, forming a plurality of holes on the lower surface, and covering the upper surface of the filter manhole with a cylindrical container with an open top filled with a charcoal red clay ball filter inside, thereby filtering out charcoal or The water purification function of the red clay ball filter is different, and by simultaneously introducing filter media of different shapes, various heavy metals, salts, and green algae cannot be selectively treated, and there is a problem in that the filter media cannot be selected and used.

The present invention is a complex design of various water purification methods, and when it rains, rainwater or valley water is collected and purified and stored for priority use. When it does not rain or there is a drought, contaminants such as salt or green algae in groundwater or river water are removed using the RO water purification method. The present invention was completed by constructing a complex system that collects, purifies, and stores rainwater, salt, and green algae to adsorb, decompose, and remove them.

The present invention was created to solve and supplement the problems of the prior art. It is installed in groundwater, river water, rainwater, sewage treatment plants, reservoirs, rivers, streams, etc. to supply water to water supply or facility houses, orchards, fish farms, etc. to remove rainwater, salt and water. It removes green algae and has adsorption and RO (Reverse Osmotic) water purification functions. For the water purification function, backwashing is performed using raw water or purified water, or using diluted hydrogen peroxide water, and silica sand, activated carbon, zeolite, bone charcoal, Adsorption water purification materials such as ion resin are put into the water purification device to adsorb and decompose various contaminants. When it rains, rainwater or valley water is collected and purified for use. If there is no rain or there is a drought, salt and green algae in groundwater or river water are polluted. The purpose is to provide a complex water purification system for rainwater and saline water that collects, purifies, and stores materials using RO purification.

The solution for the complex water purification system of rainwater and saline water according to the purpose of the present invention is a water collection pipe 110 that collects rainwater or valley water, and a rainwater filtration pipe 115 that passes the water collected from the water collection pipe 110. ) and a rainwater filtration nonwoven fabric 117 and a rainwater storage tank 150 for precipitating the water that has passed through the rainwater filtration nonwoven fabric 117, and a water purification unit (150) filled with silica sand or activated carbon or ion resin for water that has passed through the rainwater storage tank 150. It is configured to include a purified water storage tank 300 that stores the purified water purified in 100).

In addition, the water collected from the salt collection tank 210, which collects groundwater or river water containing salt and green algae, is transferred to the RO pre-treatment water purification unit 220 filled with silica sand, activated carbon, or ion resin using the salt transport pump 270. It sends the water purified in the RO pre-treatment purification unit 220 to pass through the RO purification unit 200, and includes a purified water storage tank 300 for storing the water passing through the RO purification unit 200.

As described above, rainwater or valley water is collected and purified, or groundwater or river water containing salt and green algae is collected and purified.

The purified water unit 100 is filled with silica sand, activated carbon or ion resin, and in order to backwash the purified water unit 100, hydrogen peroxide diluted water 250 is added to backwash the purified water unit 100, and the RO pre-treatment purified water unit ( 220) is filled with silica sand, activated carbon or ion resin, and hydrogen peroxide diluted water 250 is added to backwash the RO pre-treatment water purification unit 220.

Inside the rainwater storage tank 150, a screen wall 155 is formed from the top to the bottom, a flow wall 158 is formed from the bottom to the top, and a rainwater level sensor is installed inside the rainwater storage tank 150. (180) is additionally configured, and the rainwater level sensor (180) is linked to the rainwater transmission pump (170).

According to the present invention's complex water purification system for rainwater and saline water, when it rains frequently and there is an abundance of water, rainwater or valley water can be collected, purified, and stored for priority use. When it does not rain or there is a water shortage such as a drought, groundwater or river water can be used preferentially. Since contaminants such as salt and green algae can be collected, purified, and stored using the RO water purification method, the purified water can be supplied to each home, school, government office, or bathroom, or it can be used as agricultural water or purified water for use in facility houses, orchards, or fish farms, etc. By providing water, it has the effect of minimizing the cost of supplying water, solving water problems and increasing the purification efficiency of the supplied water.

Figure 1 is a schematic diagram of the combined rainwater and saline water purification system of the present invention.
Figure 2 is a diagram showing a rainwater storage tank in the combined rainwater and saline water purification system of the present invention.
Figure 3 is a diagram specifically showing the rainwater filtration unit in the combined rainwater and saline water purification system of the present invention.
Figure 4 is a configuration diagram of the purification unit for purifying rainwater and valley water of the present invention's combined rainwater and saline water purification system.
Figure 5 is a configuration diagram of the purification unit for purifying saline water and green algae of the combined rainwater and saline water purification system of the present invention.
Figure 6 is a diagram showing the configuration of diluted water using hydrogen peroxide in the combined rainwater and saline water purification system of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. In the following description of the present invention, if it is judged that a detailed description of related known functions or configurations may unnecessarily obscure the gist of the present invention. The detailed explanation is omitted.

The terms described below are terms defined in consideration of the functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definition should be made based on the contents throughout this specification.

Figure 1 is a schematic diagram of a combined water purification system of rainwater and saline water, Figure 2 is a diagram showing a rainwater storage tank in a combined water purification system of rainwater and saline water, and Figure 3 is a rainwater filtration unit in a combined water purification system of rainwater and saline water. It is a drawing specifically shown, and Figure 4 is a configuration diagram of a purification unit for purifying rainwater and valley water of a combined rainwater and saline water purification system, and Figure 5 is a diagram showing the configuration of a purifying unit for purifying saline water and green algae of a combined rainwater and saline water purification system. This is a configuration diagram of the purification unit, and Figure 6 is a configuration diagram of diluted water using hydrogen peroxide in a combined rainwater and saline water purification system,

If explained in detail with reference to Figure 1,

The present invention's composite water purification system of rainwater and saline water includes a collection pipe 110 that collects rainwater or valley water, a rainwater filtration pipe 115 that passes the water collected from the collection pipe 110, and a rainwater filtering non-woven fabric 117. and a rainwater storage tank 150 that precipitates the water that has passed through the rainwater filtering non-woven fabric 117, and water that has passed through the rainwater storage tank 150 and purified by purifying it in a water purification unit 100 filled with silica sand, activated carbon, or ion resin. It is configured to include a purified water storage tank (300) for storing water, or the water collected from the salt collection tank (210) which collects groundwater or river water containing salt and green algae is collected into silica sand using the salt transport pump (270). Alternatively, it is sent to the RO pre-treatment purification unit 220 filled with activated carbon or ion resin, the water purified in the RO pre-treatment purification unit 220 is passed through the RO purification unit 200, and the water that has passed through the RO purification unit 200 is stored. It consists of a purified water storage tank (300).

The purified water unit 100 is filled with silica sand, activated carbon or ion resin, and in order to backwash the purified water unit 100, hydrogen peroxide diluted water 250 is added to backwash the purified water unit 100, and the RO pre-treatment purified water unit ( 220) is filled with silica sand, activated carbon or ion resin, and hydrogen peroxide diluted water 250 is added to backwash the RO pre-treatment water purification unit 220.

In a system that collects, purifies, and stores rainwater or valley water when it rains, the rainwater or valley water is collected through a collection pipe (110) formed of a perforated pipe, etc., passes through a rainwater filter pipe (115), and then passes through the rainwater filter pipe (115). ) is stored in the rainwater storage tank (150).

The water stored in the rainwater storage tank 150 is secondarily purified in the purification unit 100 filled with silicic acid, activated carbon, ion resin, etc. and stored in the purified water storage tank 300.

If there is no rain or there is a drought, the water collected in the salt collection tank 210 is sent to the RO pre-treatment water purification unit 220 using the salt transport pump 270 to purify contaminants such as salt or green algae in groundwater or river water. The RO pretreatment water purification unit 220 was filled with silica sand, activated carbon, ion resin, etc. like the water purification unit 100.

The water that has passed through the RO pretreatment purification unit 220 is purified in the RO purification unit 200 and stored in the purified water storage tank 300.

The composite water purification system of rainwater and saline water of the present invention collects water through the collection pipe 110 when it rains a lot or the flow rate is abundant in the valley, and passes through the rainwater filtration pipe 115 and the rainwater storage tank 150 to the purification unit 100. So, it is finally stored in the purified water storage tank (300). When there is a drought without rain or the flow rate is not abundant in the valley, the water collected in the salt collection tank (210) is passed through the RO pre-treatment water purification unit (220) to the RO water purification unit (200). ) and is finally stored in the purified water storage tank (300).

In order to backwash the purified water unit 100 and the RO pre-treatment purified water tank 220, raw water or purified water is normally used, and if contaminants or microorganisms are excessively adsorbed on the purified water material, hydrogen peroxide diluted water (250) is used at regular intervals. Backwashing is performed to improve the water purification function and enable semi-permanent use.

As described above, the purified water stored in the purified water storage tank 300 can be supplied as agricultural water 400 to facility houses, orchards, fish farms, etc., and can be supplied as residential water 500 to homes, schools, government offices, etc.

If explained in detail with reference to Figures 2 and 3,

Rainwater or valley water is collected through the collection pipe 110, passes through the rainwater filtration pipe 115, and continuously passes through the rainwater filtration nonwoven fabric 117. As described above, rainwater or valley water primarily passes through the rainwater filtration pipe 115 and filters out leaves or trash that flows in with it. Then, as it secondarily passes through the rainwater filtering non-woven fabric (117), pollutants with large particles are filtered out and then move to the rainwater storage tank (150).

When the water stored in the rainwater storage tank 150 is full and the water level rises, the water flows out through the rainwater over pipe 190.

As described above, water passing through the rainwater filtering nonwoven fabric 117 moves to the rainwater storage tank 150, passes through the screen wall 155 and the overflow wall 158, and the sediment settles to the bottom. It is desirable to discharge the sediment sludge settled at the bottom to the outside using a pump.

As described above, the water stored in the rainwater storage tank 150 can be moved to the purification unit 100 shown in FIG. 1 by the rainwater transmission pump 170.

The rainwater level sensor 180 can transmit the level of water stored in the rainwater storage tank 150 to the outside, and detects the water stored in the rainwater storage tank 150 measured by the rainwater level sensor 180 to detect the rainwater transmission pump 170. ) to move the water to the next step.

The water collected through the water collection pipe 110 passes through the rainwater filtration pipe 115, then through the rainwater filtration non-woven fabric 117, which is made of an easily replaceable material such as non-woven fabric, and then through the perforated screen 118. It moves to the next step by passing through another rainwater filtration pipe (115) at the bottom that forms a partition using the support (119).

The perforated screen 118 is composed of a mesh or perforated plate made of PE, FRP, stainless steel, etc.

If explained in detail with reference to Figure 4,

When the performance of the purified water unit 100 deteriorates, backwashing of the purified water unit 100 is performed at regular intervals. Backwashing of the purified water unit 100 is normally performed using raw water or purified water, and when contaminants or microorganisms are excessively adsorbed on the purified water material, backwashing is performed using diluted hydrogen peroxide water 250.

The water to be purified passes through the raw water inlet pipe 101 from the rainwater storage tank 150, passes through the raw water inlet valve 103, is purified in the purified water unit 100 through the raw water inlet flange 1001, and purified water outflow flange 1002. It passes through the purified water outflow primary blocking valve 108, passes through the purified water outflow secondary blocking valve 191, and is stored in the purified water storage tank 300.

The method of backwashing the purified water unit 100 is to block the raw water inlet pipe 101, block the raw water inlet valve 103, block the first purified water outflow blocking valve 108, and open the second purified water outflow blocking valve 191. Block the drain valve (109), open the hydrogen peroxide backwash valve (106), open the first backwash water valve (104), open the second backwash water valve (192), and inject hydrogen peroxide diluted water (250) at high pressure. Backwashing is performed.

If explained in detail with reference to Figure 5,

When the performance of the RO pre-treatment water purification unit 220 weakens or the RO pre-treatment water purification unit 220 is backwashed at regular intervals. Backwashing of the RO pre-treatment water purification unit 220 is normally performed using raw water or purified water, and when contaminants or microorganisms are excessively adsorbed on the purification material, backwashing is performed using hydrogen peroxide dilution water 250.

The water to be purified passes from the salt collection tank 210 through the raw water inlet pipe 221, through the raw water inlet valve 223, through the raw water inflow flange 2201, through the RO pre-treatment water purification unit 220, and through the purified water outflow flange 2202. ), passes through the purified water outflow primary blocking valve 228, passes through the purified water outflow secondary blocking valve 291, and moves to the RO purification unit 200, and purified from the RO purifying unit 200 is stored in a purified water storage tank ( 300).

Block the raw water inlet pipe (221), block the raw water inlet valve (223), block the first cut-off valve (228), block the second cut-off valve (291), and block the drain valve (229). Backwashing is performed by opening the hydrogen peroxide backwash valve 226, opening the first backwash water valve 224, opening the second backwash water valve 292, and injecting hydrogen peroxide diluted water 250 at high pressure.

If explained in detail with reference to Figure 6,

The hydrogen peroxide dilution tank 250 is made of PE, FRP, stainless steel, etc., and has a hydrogen peroxide tank 255 on one side and a metering pump 257 for supplying an appropriate amount of hydrogen peroxide to the hydrogen peroxide dilution tank 250. It is advisable to purchase and use general hydrogen peroxide available on the market.

After storage in the hydrogen peroxide tank 255, water purified from the purified water tank 300 is introduced into the hydrogen peroxide dilution tank 250, and depending on site conditions, backwashing is usually performed using raw water or purified water, and contaminants or When microorganisms, etc. are excessively adsorbed on water purification materials, backwashing is performed with hydrogen peroxide diluted water. It is desirable to dilute hydrogen peroxide to a concentration of 1 to 5%.

In the present invention, the above embodiment is an example and the present invention is not limited thereto. Anything that has substantially the same structure and achieves the same effect as the technical idea described in the claims of the present invention is included in the technical scope of the present invention.

100. Integer part
101. Raw water inlet pipe
102. Clean water outflow pipe
103. Raw water inlet valve
104. Backwash water primary valve
105. Raw water backwash valve
106. Hydrogen peroxide diluted water backwash valve
108. Purified water outflow primary blocking valve
109. Drain valve
110. Collecting pipe
115. Rainwater filtration pipe
117. Rainwater filtration non-woven fabric
118. Perforated screen
119. Support
150. Rainwater storage tank
155. Screen wall
158. Drain wall
170. Rainwater transmission pump
180. Rainwater level sensor
190. Rainwater over pipe
191. Purified water outflow secondary blocking valve
200. RO water purification unit
210. Salt collection tank
220. RO pre-treatment purification unit
221. Raw water inlet pipe
222. Clean water outflow pipe
223. Raw water inlet valve
224. Backwash water primary valve
225. Raw water backwash valve
226. Hydrogen peroxide diluted water backwash valve
228. Purified water outflow primary blocking valve
229. Drain valve
250. Hydrogen peroxide dilution water
251. Hydrogen peroxide diluted water outflow pipe
255. Hydrogen peroxide dilution tank
256. Hydrogen peroxide diluted water level sensor
257. Metering pump
260. Hydrogen peroxide raw water pump
270. Salt transport pump
290. Contaminated water discharge pipe
291. Purified water outflow secondary blocking valve
292. Backwash water secondary valve
300. Purified water storage tank
360. Purified water supply pipe
380. Purified water storage tank water level sensor
400. Agricultural water
500. Domestic water
700. River
1001. Raw water inlet flange
1002. Clean water discharge flange
2201. Raw water inlet flange
2202. Clean water discharge flange

Claims (3)

In a complex water purification system that collects, purifies and stores rainwater or saline water,
A collection pipe 110 that collects rainwater or valley water, a rainwater filtration pipe 115 that passes the water collected from the collection pipe 110, a rainwater filtration nonwoven fabric 117, and a rainwater filtration nonwoven fabric 117 that passes through the rainwater filtration nonwoven fabric 117. It includes a rainwater storage tank 150 for precipitation of water, and a purified water storage tank 300 for storing the purified water by purifying the water that has passed through the rainwater storage tank 150 in a purification unit 100 filled with silica sand, activated carbon, or ion resin. To configure it,
Inside the rainwater storage tank 150, a screen wall 155 is formed from the top to the bottom, a flow wall 158 is formed from the bottom to the top, and a rainwater level sensor is installed inside the rainwater storage tank 150. (180), wherein the rainwater level sensor (180) is linked to a rainwater transmission pump (170). In a complex water purification system that collects, purifies and stores rainwater or saline water,
The water collected in the salt collection tank (210), which collects groundwater or river water containing salt and green algae, is sent to the RO pretreatment water purification unit (220) filled with silica sand, activated carbon, or ion resin using the salt transport pump (270), Rainwater that passes the water purified in the RO pre-treatment water purification unit 220 to the RO water purification unit 200 and includes a purified water storage tank 300 for storing the water that has passed through the RO water purification unit 200. and complex water purification systems for saline water. According to any one of claim 1 or claim 2,
The purified water unit 100 is filled with silica sand, activated carbon or ion resin, and in order to backwash the purified water unit 100, hydrogen peroxide diluted water 250 is added to backwash the purified water unit 100, and the RO pre-treatment purified water unit ( 220) is filled with silica sand, activated carbon, or ion resin, and hydrogen peroxide diluted water (250) is added to backwash the RO pre-treatment water purification unit 220. and complex water purification systems for saline water.