Novel automatic water quality monitoring device for bioretention zone

Abstract

The utility model discloses a novel automatic water quality monitoring device for a bioretention zone, and relates to the field of water quality monitoring devices. The system comprises an overflow well, water quality detection modules and an Internet of Things terminal, the overflow well is arranged on the low side of the bioretention zone, a water outlet is formed in the lower end of the overflow well, a water outlet pipe is arranged at the water outlet, and the two water quality detection modules are arranged on the high side of the bioretention zone and the water outlet of the overflow well respectively. The two groups of water quality detection modules are both connected to the Internet of Things terminal, and the Internet of Things terminal is connected to the far-end monitoring system through a wireless network. According to the technical scheme, automation and real-time performance of rainwater quality monitoring before and after treatment of the bioretention zone are achieved, possibility is provided for timely knowing and evaluating the purification effect of the bioretention zone, the operation complexity of water quality monitoring is reduced, the frequency and cost of manual monitoring are reduced, the operation and maintenance cost is reduced, and the monitoring efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality monitoring device field especially relates to a novel automatic water quality monitoring device for biological retention zone. BACKGROUND

[0002] In recent years, with the sustainable development of urbanization and social economy in China, environmental pollution problem aggravates, water resources become increasingly scarce, and the protection and utilization of rainwater resources become crucial. During the rainfall process, rainwater collects atmospheric and surface pollutants, and the formed rainwater runoff is a kind of surface source pollution with poor water quality. These rainwater runoffs directly flow into rivers and lakes, not only directly polluting water sources, but also wasting rainwater resources that can be collected and utilized.

[0003] The construction of sponge city can absorb, store, infiltrate and purify water during rain, and release and utilize the stored water when needed. Rainwater can be stored and purified through small and dispersed ecological green measures, or be treated through traditional rainwater pipe and channel systems. During the construction of sponge city, devices for treating surface source pollution such as biological retention zone can effectively solve the problem of surface source pollution, thereby preventing pollutants from entering urban water bodies. Biological retention zone is a facility for storing, infiltrating and purifying runoff rainwater through a plant, soil and microbial system, and is widely used in the construction of sponge cities across the country due to its purification effect on pollutants in rainwater runoff, and can make positive contributions to urban water resource management and sustainable development.

[0004] The rainwater purified by the biological retention zone enters the overflow pool and is used for urban greening irrigation, road washing and other purposes, and the purposes corresponding to different water quality grades are also different. Before entering the overflow pool, the purification effect of the biological retention zone on rainwater is difficult to estimate. If the conventional chemical analysis method is used for water quality monitoring, the operation is complex, the cost is high, and the cycle is long, and real-time monitoring of the water quality of rainwater before and after the treatment of the biological retention zone cannot be realized, which has become a problem to be solved at present. UTILITY MODEL CONTENT

[0005] The technical problem to be solved and the technical task proposed by the utility model are to perfect and improve the prior art, and provide a novel automatic water quality monitoring device for biological retention zone to realize real-time monitoring of the water quality of rainwater before and after the treatment of the biological retention zone. To this end, the utility model adopts the following technical scheme.

[0006] A new type of automatic water quality monitoring device for a bioretention belt, comprising an overflow well, a water quality detection module and an Internet of Things terminal, the overflow well is arranged at the low side of the bioretention belt, the lower end of the overflow well is provided with a water outlet, the water outlet is directed away from the bioretention belt, the water outlet is provided with a water outlet pipe, the water quality detection module is provided with two groups, which are arranged at the high side of the bioretention belt and the water outlet of the overflow well respectively, the two groups of water quality detection modules are connected to the Internet of Things terminal, and the Internet of Things terminal is connected to the remote monitoring system through a wireless network. The device can realize the automation and real-time of the rainwater quality monitoring before and after the bioretention belt treatment, and can provide the possibility for timely understanding and evaluating the purification effect of the bioretention belt, reduce the operation complexity of water quality monitoring, reduce the frequency and cost of manual monitoring, reduce the operation and maintenance cost, and greatly improve the monitoring efficiency.

[0007] As a preferred technical means: the water quality detection module comprises a pH meter, a chemical oxygen demand COD detector, a biochemical oxygen demand BOD detector, a total nitrogen TN detector and a total phosphorus TP detector. These detection sensors cover the key indicators in water quality monitoring, including pH, organic pollution degree, nitrogen content and phosphorus content, which can comprehensively reflect the pollution status and purification effect of water body.

[0008] As a preferred technical means: the water surface height of the bioretention belt is consistent with the wellhead height of the overflow well. Under normal circumstances, rainwater is purified through the bioretention belt, and excess rainwater can be smoothly discharged into the subsequent treatment system or discharged into natural water body when the water level reaches the design height, which helps the bioretention belt to fully play its role in rainwater storage, and avoids the problem of overflow and pollution caused by high water level.

[0009] As a preferred technical means: the upper end of the overflow well is provided with a grid type well cover. When the rainwater is large, the larger debris in the excess water body can be prevented from entering the overflow well, avoiding the blockage of the water outlet of the overflow well.

[0010] As a preferred technical means: the well cover is a dome-shaped cover which is arched upward. This structure can effectively enhance the structural strength of the well cover. When there is heavy rainfall, the rainwater exceeding the overflow well can flow in along the grid holes around the well cover. When the water level exceeds the top of the well cover, it can flow in from all directions around and on the top of the well cover, which can effectively increase the water diversion area and has better diversion effect than the flat grid structure.

[0011] As a preferred technical means, the manhole cover is made of stainless steel. It has high strength, can withstand significant impact pressure from external objects, and possesses excellent corrosion resistance, allowing for prolonged use in various harsh environments without easily rusting. This ensures it maintains its integrity and functionality over a long period, reducing damage and maintenance costs caused by corrosion.

[0012] As a preferred technical approach, the bottom of the overflow well is sloped so that the bioretention zone side is higher than the outlet pipe side. This structure ensures that water flows out of the outlet while the water in the bioretention zone continues to flow, allowing the water quality detection module arranged at the outlet to perform water quality detection to the maximum extent.

[0013] As a preferred technical approach, a base is provided above the water outlet pipe, with its top higher than the top of the manhole cover, and the IoT terminal is mounted on the base. Because the top of the base is higher than the top of the manhole cover, the IoT terminal is placed in a relatively high position, thereby avoiding the risk of being submerged in water under extreme weather conditions such as heavy rain or floods. This ensures the stable operation of the IoT terminal and the continuity of data collection.

[0014] Beneficial effects: This device automates and enables real-time monitoring of rainwater quality before and after treatment in the bioretention zone, providing the possibility for timely understanding and evaluation of the purification effect of the bioretention zone. Compared with traditional manual monitoring, it achieves real-time data collection and monitoring, reduces the operational complexity of water quality monitoring, reduces the frequency and cost of manual monitoring, lowers operation and maintenance costs, and greatly improves monitoring efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structural principle of this utility model.

[0016] In the diagram: 1. Overflow well; 2. Water quality detection module; 3. Internet of Things terminal; 4. Water outlet pipe; 5. Well cover; 6. Bioretention zone. Detailed Implementation

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings.

[0018] like Figure 1 As shown, a novel automatic water quality monitoring device for a bioretention zone 6 includes an overflow well 1, a water quality detection module 2, and an Internet of Things (IoT) terminal 3. The bioretention zone 6 has three levels of elevation difference. The overflow well 1 is located on the lower side of the bioretention zone 6, and an outlet is provided at the lower end of the overflow well 1, facing the side away from the bioretention zone 6. The outlet is equipped with an outlet pipe 4. There are two sets of water quality detection modules 2, which are respectively located on the higher side of the bioretention zone 6 and at the outlet of the overflow well 1. Both sets of water quality detection modules 2 are connected to the IoT terminal 3, and the IoT terminal 3 is connected to a remote monitoring system via a wireless network.

[0019] In order to cover the key indicators in water quality monitoring, the water quality detection module 2 includes a pH meter, a chemical oxygen demand COD detector, a biochemical oxygen demand BOD detector, a total nitrogen TN detector, and a total phosphorus TP detector. These detection sensors cover the key indicators in water quality monitoring, including pH, organic pollution level, nitrogen content, and phosphorus content, which can comprehensively reflect the pollution status and purification effect of the water body.

[0020] In order to optimize rainwater purification and discharge, the water surface height of the bioretention zone 6 is consistent with the well mouth height of the overflow well 1. Under normal circumstances, rainwater is purified through the bioretention zone 6, and when the water level reaches the designed height, the excess rainwater can smoothly pass through the overflow well 1 and be discharged into the subsequent treatment system or natural water body, which helps the bioretention zone 6 fully play its role in rainwater storage and at the same time avoids the problem of overflow and pollution caused by excessive water level, effectively optimizing the purification and discharge of rainwater through the bioretention zone 6.

[0021] In order to prevent debris from entering the overflow well 1, the upper end of the overflow well 1 is provided with a grid-type well cover 5. When there is a large amount of rain, larger debris mixed in the excess water body can be prevented from entering the overflow well 1, avoiding the situation of the overflow well 1 outlet being blocked.

[0022] In order to increase the rainwater diversion area, the well cover 5 is a dome-shaped cover that arches upward. This structure can effectively enhance the structural strength of the well cover 5, and when there is heavy rainfall, the rainwater that exceeds the overflow well 1 can flow in along the grid holes around the well cover 5, and when the water level exceeds the top of the well cover 5, it can flow in from all around and the top of the well cover 5, effectively increasing the rainwater diversion area and achieving better diversion effect compared to a flat grid structure.

[0023] In order to reduce maintenance costs, the well cover 5 is made of stainless steel. It has high strength and can withstand the impact of large external objects, has excellent corrosion resistance, can be used for a long time in various harsh environments without rusting, can maintain its integrity and functionality for a long time, and can reduce damage and maintenance costs caused by corrosion.

[0024] In order to ensure effective water quality detection, the bottom of the overflow well 1 is inclined with one side of the bioretention zone 6 higher than the other side of the water outlet pipe 4. In this example, the slope of the well bottom is 5 degrees. This structure ensures that water flows out of the water outlet under the condition that the water in the bioretention zone 6 is constantly flowing, so that the water quality detection module 2 arranged at the water outlet can maximize water quality detection and achieve optimal protection of water quality detection.

[0025] In order to guarantee the safe operation of the Internet of Things terminal 3, a base higher than the top of the well lid 5 is arranged above the outlet pipe 4, and the Internet of Things terminal 3 is arranged on the base. Since the top of the base is higher than the top of the well lid 5, the Internet of Things terminal 3 is placed at a relatively high position, thereby avoiding the risk of being flooded in extreme weather conditions such as heavy rain or flood, which ensures the safe and stable operation of the Internet of Things terminal 3 and the continuity of data acquisition.

[0026] In application, the two groups of water quality detection modules 2 at the high side of the biological retention zone 6 and the outlet of the overflow well 1 respectively collect the water quality data before and after treatment in real time, and send the collected data to the remote monitoring system through the Internet of Things terminal 3 for processing and storage, and feedback to the monitoring screen of the remote monitoring system in real time, which is convenient for monitoring personnel to observe. When the rainfall exceeds the retention and purification capacity of the biological retention zone 6, and the water level is higher than the well mouth, rainwater flows into the overflow well 1 from the grid well lid 5 to speed up the drainage, and the outlet water quality of the overflow well 1 must be reduced. At this time, the data change of the two groups of water quality detection modules 2 at the high side of the biological retention zone 6 and the outlet of the overflow well 1 is fed back to the remote monitoring system, so that the rainwater condition of the biological retention zone 6 can be directly understood.

[0027] The device realizes the automation and real-time of the rainwater quality monitoring before and after the biological retention zone 6, can understand and evaluate the purification effect of the biological retention zone 6 in time, reduces the operation complexity of water quality monitoring, reduces the frequency and cost of manual monitoring, reduces the operation and maintenance cost, and greatly improves the monitoring efficiency.

[0028] The above Figure 1 The novel automatic water quality monitoring device for the biological retention zone 6 shown is a specific embodiment of the present application, which has embodied the substantial features and progress of the present application. According to the actual use needs, equivalent modifications can be made to the shape, structure and the like under the inspiration of the present application, which are all within the protection scope of the present application.

Claims

1. A novel automatic water quality monitoring device for bioretention zones, characterized in that: The system includes an overflow well, a water quality detection module, and an Internet of Things (IoT) terminal. The overflow well is located on the lower side of the bioretention zone, and has an outlet at its lower end, facing away from the bioretention zone. The outlet has an outlet pipe. There are two sets of water quality detection modules, one located on the upper side of the bioretention zone and the other at the outlet of the overflow well. Both sets of water quality detection modules are connected to the IoT terminal, which is connected to a remote monitoring system via a wireless network.

2. The novel automatic water quality monitoring device for bioretention zones according to claim 1, characterized in that: The water quality detection module includes a pH meter, a chemical oxygen demand (COD) detector, a biochemical oxygen demand (BOD) detector, a total nitrogen (TN) detector, and a total phosphorus (TP) detector.

3. A novel automatic water quality monitoring device for bioretention zones according to claim 1, characterized in that: The water level of the bioretention zone is the same as the height of the overflow well opening.

4. A novel automatic water quality monitoring device for bioretention zones according to claim 3, characterized in that: The overflow well is equipped with a grid-type well cover at its upper end.

5. A novel automatic water quality monitoring device for bioretention zones according to claim 4, characterized in that: The manhole cover is a dome-shaped cover that arches upwards.

6. A novel automatic water quality monitoring device for bioretention zones according to claim 5, characterized in that: The manhole cover is made of stainless steel.

7. A novel automatic water quality monitoring device for bioretention zones according to claim 1, characterized in that: The bottom of the overflow well is sloping with the bioretention zone side higher than the outlet pipe side.

8. A novel automatic water quality monitoring device for bioretention zones according to claim 4, characterized in that: The water outlet pipe is provided with a base that is higher than the top of the manhole cover, and the Internet of Things terminal is installed on the base.

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