Algae control ecological enclosure, river and lake bank algae control system and reservoir water intake algae control system

Abstract

The utility model discloses a kind of algae control ecological enclosure, river and lake bank algae control system and reservoir water intake algae control system, it is related to water environment management technical field, including the flexible enclosure main body being vertically arranged in working condition, the face of flexible enclosure main body setting towards water flow direction is intercepting surface, the near-shore end of flexible enclosure main body is bent and forms fixed part, fixed part is set for fixing flexible enclosure main body on fixed part, and flexible enclosure main body material is water-tight material.River and lake bank algae control system and reservoir water intake algae control system contain several algae control ecological enclosures.The utility model can be realized in flowing water body interception, gather water surface and the algae of upper layer of water body, reach the purpose of centralized control, centralized removal water surface and the algae of upper layer of water body, while still can freely flow the algae of lower layer of water body, maintain appropriate number of algae maintain algae water purification effect.

Description

Technical Field

[0001] This utility model relates to the field of water environment management technology, and in particular to an algae control ecological enclosure, a river and lake shore algae control system, and a reservoir water intake algae control system. Background Technology

[0002] Eutrophication and the resulting algal blooms are a serious environmental challenge facing the world. Excessive algal growth not only disrupts the balance of aquatic ecosystems, but the algal toxins produced and the depletion of dissolved oxygen caused by the putrefaction process also pose a direct threat to drinking water safety, aquaculture, and public health.

[0003] Currently, the technical means to control algal blooms are mainly divided into three categories: physical methods, chemical methods, and biological and ecological methods. Physical methods (such as manual harvesting and mechanical algae removal) do not cause secondary pollution, but they usually suffer from low treatment efficiency and high labor and time costs, making them difficult to deal with large-scale, high-intensity algal blooms. Chemical methods (such as the application of copper sulfate and algaecides) are effective, but chemical residues can easily cause secondary pollution of water bodies. Long-term use may induce algae resistance and may also have a biomagnification effect through the food chain, posing a potential risk to non-target organisms. Biological and ecological methods (such as the introduction of filter-feeding fish and the planting of aquatic plants) are an environmentally friendly long-term strategy, but they are slow to take effect and are easily constrained by external conditions such as seasons and climate, making them inadequate for dealing with sudden, high-density algal blooms.

[0004] Of particular note is the widespread use of fixed algae-blocking and guiding facilities (such as fixed debris barriers and floating enclosures) to achieve physical isolation and collection of algal blooms in specific areas (such as drinking water intakes and nearshore waters of scenic areas). However, these traditional facilities suffer from a fundamental technical flaw: their structural parameters (such as interception depth, inclination angle, and location) remain fixed after installation, failing to dynamically adapt to the complex and variable spatiotemporal distribution characteristics of algae in water bodies. Specifically: In terms of spatial dimension, algae form a significant vertical stratification distribution under different light, temperature and nutrient conditions at different water depths, and fixed-depth interception facilities are difficult to effectively capture algae communities distributed in different water depths.

[0005] Over time, the location and density of algae aggregation are strongly influenced by dynamically changing hydrological and meteorological conditions (such as flow velocity, flow direction, wind force, and wind direction). Fixed facilities cannot adjust their working posture and position accordingly, resulting in a sharp decrease in interception efficiency when the airflow field changes. A large amount of algae flows around the bottom or sides of the facility, creating blind spots in the protection.

[0006] Therefore, existing technologies, especially fixed algae interception facilities, exhibit poor adaptability and unstable interception efficiency when faced with the dynamic and complex distribution of algae. This is particularly true for environmentally sensitive areas such as drinking water intakes that require continuous and reliable protection, where existing technologies struggle to achieve precise, efficient, and adaptive protection. Utility Model Content

[0007] The purpose of this invention is to provide an algae control ecological enclosure, a river and lake shore algae control system, and a reservoir water intake algae control system to solve the problems existing in the prior art. It aims to intercept and collect algae on the water surface and in the upper layer of the water body in flowing water, thereby achieving centralized control and removal of algae on the water surface and in the upper layer of the water body. At the same time, it allows algae in the lower layer of the water body to flow freely, maintaining an appropriate amount of algae to maintain the algae purification effect.

[0008] To achieve the above objectives, this utility model provides the following solution: This utility model provides an algae-controlling ecological enclosure, characterized in that: it includes a vertically arranged flexible enclosure body in the working state, the surface of the flexible enclosure body facing the water flow direction is the interception surface, the near-shore end of the flexible enclosure body is bent to form a fixing part, and the fixing part is provided with a fixing member for fixing the flexible enclosure body; the flexible enclosure body includes a top float, a middle wall and a bottom foundation, in the working state the middle wall is vertically arranged, the top float is arranged above the wall, and the bottom foundation is arranged below the middle wall; the flexible enclosure body is made of a waterproof material.

[0009] In one embodiment, the fixing element includes a sandbag for squeezing the fixing part and a rope for binding the flexible enclosure body. The sandbag is disposed on the side of the fixing part that contacts the water. A first end of the rope is connected to the top of the flexible enclosure body, and a second end of the rope is fixed to the land.

[0010] In one embodiment, the system also includes an anchor body connected to the far shore end of the flexible enclosure body via an anchor chain.

[0011] This utility model also provides a river and lake shore algae control system. Based on the above-mentioned algae control ecological enclosure, the algae control ecological enclosure is fixedly installed in the river or lake. The algae control ecological enclosure is arranged sequentially along the river or lake shoreline. The contact surface of the fixed part is attached to the side wall of the river channel or the steep wall of the lake shore. The top float floats above the water surface. The bottom of the bottom foundation maintains a communication space with the bottom of the river or lake. The angle formed on the water surface by the interception surface and the river or lake shore is the interception angle α. The first side of the interception angle α is the intersection of the plane containing the interception surface and the water surface. When the river or lake shoreline is a straight line, the second side of the interception angle α is the straight line containing the shoreline. When the river or lake shoreline is a curve, the second side of the interception angle α is the tangent of the shoreline at the intersection of the first side of the interception angle α and the shoreline.

[0012] In one embodiment, the interception angle α ranges from 30 degrees to 80 degrees.

[0013] In one implementation, when set up in a river channel, the algae-controlling ecological barriers on the two riverbanks are arranged in a staggered manner.

[0014] This utility model also provides a reservoir intake algae control system. Based on the above-mentioned algae control ecological enclosure, both ends of the flexible enclosure body are near the shore. The shore-contacting surfaces of the two fixed parts are respectively attached to the inner wall of the reservoir intake. The top float floats out of the water surface. The bottom foundation retains a communication space with the riverbed or lakebed. The plane where the interception surface is located is perpendicular to the inner wall of the reservoir intake.

[0015] The present invention achieves the following technical advantages over the prior art: This invention provides an ecological barrier for algae control, an algae control system for river and lake banks, and an algae control system for reservoir intakes. These systems intercept and collect algae on the water surface and in the upper layers of flowing water, achieving centralized control and removal of algae from these areas. Simultaneously, algae in the lower layers of the water are allowed to flow freely, maintaining an appropriate amount to sustain the algae-based water purification effect. Algae naturally accumulate in depressions in the terrain of flowing water bodies. This invention utilizes this characteristic by arranging ecological barriers along river or lake banks, artificially creating multiple interception zones with concave structures. This effectively intercepts and collects algae on the water surface and in the upper layers, allowing for centralized removal and control of algae levels, thus preventing river and lake pollution. No interception is implemented in the lower layers of rivers and lakes, allowing algae to flow freely and maintaining the algae-based water purification effect. Compared to rivers and lakes, reservoirs offer basic water quality assurance. However, reservoir water still contains algae. Reducing algae levels during water intake can decrease the amount of algaecide used in tap water production, making it more environmentally friendly and lowering production costs. Therefore, this application proposes installing an algae-controlling ecological barrier at the reservoir's intake to effectively intercept algae during water discharge. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a flexible enclosure body in an embodiment of this utility model; Figure 2 This is a schematic diagram of the overall structure of an algae-controlling ecological enclosure for a river and lake shore algae control system in an embodiment of this utility model; Figure 3 This is a top view schematic diagram of the layout of a river and lake shore algae control system according to an embodiment of this utility model; Figure 4 This is a side view of the layout of a river and lake shore algae control system according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the overall structure of an algae control ecological enclosure for a reservoir water intake system, as described in this utility model embodiment. Figure 6 This is a top view schematic diagram of the algae control system at a reservoir intake in an embodiment of this utility model; Figure 7 This is a side view schematic diagram of the algae control system at a reservoir intake in an embodiment of this utility model.

[0018] The components include: 1. Top floating body; 2. Middle wall; 3. Bottom foundation; 4. Sandbags; 5. Mooring ropes; 6. Anchor body; and 7. Anchor chain. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the implementation of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed herein. In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are merely for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Therefore, features specified with "first," "second," etc., may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0021] It should also be noted that in the embodiments of this application, the same reference numerals are used to denote the same component or the same part.

[0022] The purpose of this invention is to provide an algae control ecological enclosure, a river and lake shore algae control system, and a reservoir water intake algae control system to solve the problems existing in the prior art. This invention aims to intercept and collect algae on the water surface and in the upper layer of the water body in flowing water, thereby achieving centralized control and removal of algae on the water surface and in the upper layer of the water body. At the same time, it allows algae in the lower layer of the water body to flow freely, maintaining an appropriate amount of algae to maintain the algae purification effect.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1 like Figures 1 to 7As shown, this utility model provides an algae-controlling ecological enclosure, comprising a vertically arranged flexible enclosure body in the working state. The surface of the flexible enclosure body facing the water flow direction is the interception surface. The near-shore end of the flexible enclosure body is bent to form a fixing part, and a fixing component for fixing the flexible enclosure body is provided on the fixing part. The flexible enclosure body includes a top float 1, a middle wall 2, and a bottom foundation 3. In the working state, the middle wall 2 is vertically arranged, the top float 1 is located above the wall, and the bottom foundation 3 is located below the middle wall 2. The flexible enclosure body is made of a waterproof material. The flexible structure can conform to the bank wall around the water body to prevent water leakage gaps, and the fixing part can fix the flexible enclosure body in the water body, ensuring that the flexible enclosure body will not rotate or move due to water flow impact, maintaining the best interception effect. The top float 1 provides upward buoyancy, while the bottom foundation 3 provides downward tension, creating a bidirectional tension in the vertical direction. This enhances the deformation resistance of the flexible barrier body, preventing significant deformation under water flow impact. Simultaneously, the bottom foundation 3 increases the overall weight of the flexible barrier body, maintaining its positional stability. The impermeable flexible barrier body prevents algae from penetrating, ensuring reliable interception.

[0025] In one embodiment, the fixing element includes sandbags 4 for compressing the fixing part and ropes 5 for binding the flexible enclosure body. The sandbags 4 are positioned on the side of the fixing part that contacts the water. The first end of the ropes 5 is connected to the top of the flexible enclosure body, and the second end of the ropes 5 is fixed to the land. Since the banks surrounding the water body are mostly sloping, using sandbags 4 to compress the fixing part allows it to be directly fixed to the bank. The sandbags 4 are easily deformable, better conforming to the shape of the bank and preventing water-permeable gaps. Preferably, there are three ropes 5.

[0026] In one embodiment, an anchor body 6 is also included, which is connected to the far shore end of the flexible enclosure body via an anchor chain 7. When the portion of the flexible enclosure body used for interception in the water is long, its lever arm is longer the farther it is from the shore, and it is more prone to deformation under constant water flow impact. Connecting the anchor body to the far shore end of the flexible enclosure body can provide a good fixing effect.

[0027] Example 2 like Figures 1 to 7As shown, this utility model also provides a river and lake shore algae control system. Based on the algae control ecological enclosure described in the claims above, the algae control ecological enclosure is fixedly installed in the river or lake, arranged sequentially along the river or lake shoreline. The contact surface of the fixed part is attached to the side wall of the river channel or the steep wall of the lake shore. The top float 1 floats above the water surface, and the bottom foundation 3 maintains a communication space with the bottom of the river or lake. The angle formed on the water surface by the interception surface and the river or lake shore is the interception angle α. The first side of the interception angle α is the intersection of the plane containing the interception surface and the water surface. When the river or lake shoreline is a straight line, the second side of the interception angle α is the straight line containing the shoreline. When the river or lake shoreline is a curve, the second side of the interception angle α is the tangent of the shoreline at the intersection of the first side of the interception angle α and the shoreline. The top of the flexible enclosure body floats above the water surface to prevent water overflow from bypassing the flexible enclosure body and causing interception failure. The extension height is sufficient to effectively intercept water. Preferably, the flexible enclosures are spaced at the same intervals, with the interval distance D1 calculated in units of 10 meters. The number of units is determined based on the actual situation.

[0028] In one implementation, the interception angle α ranges from 30 degrees to 80 degrees. The rules for determining the interception angle α are as follows: the value of interception angle α is twice the angle between the shoreline (shoreline tangent) and the prevailing wind direction; the centerline of interception angle α is parallel to the prevailing wind direction; however, the maximum interception angle α does not exceed 80°. In one implementation, when installed in a river channel, the algae-controlling ecological barriers on both riverbanks are staggered. This staggered structure effectively increases the number of water changes direction, creating more effective concave interception zones. The straight-line distance between adjacent staggered flexible barriers along the water flow direction is in units of 10 meters, with the number of units determined based on the actual length of the interception area.

[0029] The underwater interception height of the flexible enclosure is related to the water transparency. Preferably, the underwater interception height of the flexible enclosure is three times the water transparency. Water transparency refers to the degree to which light can penetrate the water, specifically the maximum water depth at which light can penetrate vertically through the water, allowing an observer above the water surface to clearly distinguish a specific target in the water. The unit is meters.

[0030] Example 3 like Figures 1 to 7 As shown, this utility model provides a river and lake shore algae control system based on the above-mentioned system, comprising the following steps: S1. Quantitatively detect the vertical distribution of algae in the target water body, and monitor the water flow direction, flow velocity, and wind direction and speed at the water surface.

[0031] S2. Based on the measurement results of S1, determine the plate height H1 of the flexible enclosure body, the interception angle α, and the spacing distance D1 of the flexible enclosure body. The plate height H1 includes the underwater interception height and the height extending above the water surface, and the spacing distance D1 includes several units of calculation.

[0032] S3. Deploy algae-controlling ecological barriers in the target water area.

[0033] S4. An ecological restoration agent with flocculation and flotation function is added to the interception area. After the algae float to the surface, they are harvested, or the algae-infused water is directly extracted for filtration. The specific harvesting method is related to the algae density in the water. When the algae density is low, direct harvesting is inefficient. Using an ecological restoration agent for enrichment can improve harvesting efficiency and reduce harvesting time. The ecological restoration agent can be a natural mineral or modified clay-based flocculant. Harvesting methods include using a net to intercept and enrich the floating algae flocs to the shore for harvesting, or using a floating debris harvesting boat. When the algae density is high, water and algae can be separated by pumping and filtration. The extracted algae-infused water is filtered to obtain relatively clean treated water, which is then returned to the water body. Preferably, this utility model uses 1... Using 10^10 cells / L as a benchmark, an algae density below this value is considered low, and an algae density above this value is considered high.

[0034] Example 4 like Figures 1 to 7 As shown, this utility model also provides a reservoir intake algae control system. Based on the aforementioned algae-controlling ecological enclosure, both ends of the flexible enclosure body are near-shore. The contact surfaces of the two fixed parts are respectively attached to the inner wall of the reservoir intake. The top float 1 floats above the water surface, and the bottom of the foundation 3 maintains a communication space with the riverbed or lakebed. The plane of the interception surface is perpendicular to the inner wall of the reservoir intake. The height of the flexible enclosure body extending into the water body is determined according to actual conditions, preferably 2 meters. The water from the reservoir intake is directly used for residential water production, requiring higher water quality and better interception effects. Considering the narrower structure of the reservoir intake compared to natural waterways, a scheme is adopted to completely intercept the upper layer of water flow, allowing only the lower layer to pass through, thus completely intercepting algae. The flexible enclosure bodies are spaced at the same intervals, with the interval distance D2 calculated in units of 10 meters. The number of units is determined according to the actual length of the interception area. In operation, due to the impact of the water flow, the flexible enclosure body used for interception will be bent and deformed by the water flow.

[0035] Example 5 like Figures 1 to 7 As shown, this utility model also provides a reservoir water intake algae control system based on the above-mentioned system, comprising the following steps: S1. Quantitatively detect the vertical distribution of algae in the target water body, and simultaneously monitor the water flow direction, flow velocity, and wind direction and speed at the water surface; S2. Based on the measurement results of S1, determine the plate height H2 of the flexible enclosure body and the interval distance D2 of the flexible enclosure body. S3. Deploy algae-controlling ecological barriers in the target water area; S4. An ecological restoration agent with flocculation and flotation function is added to the interception area. After the algae float to the surface, they are harvested, or the algae-infused water is directly extracted for filtration. The specific harvesting method depends on the algae density in the water. When the algae density is low, direct harvesting is inefficient. Using an ecological restoration agent for enrichment can improve harvesting efficiency and reduce harvesting time. The ecological restoration agent can be a natural mineral or modified clay-based flocculant. Harvesting methods include using a net to intercept and enrich the floating algae flocs to the shore for harvesting, or using a floating debris harvesting boat. When the algae density is high, water and algae can be separated by pumping and filtration. The extracted algae-infused water is filtered to obtain relatively clean treated water, which is then returned to the water body. Preferably, this utility model uses 1... Using 10^10 cells / L as a benchmark, an algae density below this value is considered low, and an algae density above this value is considered high.

Claims

1. An algae-controlling ecological enclosure, characterized in that: The system includes a vertically arranged flexible enclosure body in the working state, with the surface of the flexible enclosure body facing the water flow direction serving as an interception surface. The near-shore end of the flexible enclosure body is bent to form a fixing part, and a fixing component for fixing the flexible enclosure body is provided on the fixing part. The flexible enclosure body includes a top floating body (1), a middle wall (2) and a bottom foundation (3). In the working state, the middle wall (2) is set vertically, the top floating body (1) is set above the wall, and the bottom foundation (3) is set below the middle wall (2). The main material of the flexible enclosure is a waterproof material.

2. The algae-controlling ecological enclosure according to claim 1, characterized in that: The fixing component includes a sandbag (4) for squeezing the fixing part and a rope (5) for binding the flexible enclosure body. The sandbag (4) is placed on the side of the fixing part that contacts the water. The first end of the rope (5) is connected to the top of the flexible enclosure body, and the second end of the rope (5) is fixed to the land.

3. The algae-controlling ecological enclosure according to claim 1, characterized in that: It also includes an anchor body (6), which is connected to the far shore end of the flexible enclosure body by an anchor chain (7).

4. A river and lake shore algae control system, characterized in that: Based on any one of claims 1-3, the algae-controlling ecological enclosure is fixedly installed in a river or lake, and the algae-controlling ecological enclosure is arranged sequentially along the shoreline of the river or lake. The contact surface of the fixed part is attached to the side wall of the river channel or the steep wall of the lake shore. The top floating body (1) floats out of the water surface. The bottom of the bottom foundation (3) retains a communication space with the bottom of the river or lake. The angle formed on the water surface by the interception surface and the river or lake shore is the interception angle α. The first side of the interception angle α is the intersection of the plane containing the interception surface and the water surface. When the shoreline of the river or the shoreline of the lake is a straight line, the second side of the interception angle α is the straight line containing the shoreline. When the shoreline of the river or the shoreline of the lake is a curve, the second side of the interception angle α is the tangent line of the shoreline at the intersection of the first side of the interception angle α and the shoreline.

5. The river and lake shore algae control system according to claim 4, characterized in that: The interception angle α ranges from 30 degrees to 80 degrees.

6. The river and lake shore algae control system according to claim 4 or 5, characterized in that: When installed in a river channel, the algae-controlling ecological barriers on both riverbanks are staggered.

7. A reservoir intake algae control system, characterized in that: Based on the algae-controlling ecological enclosure according to claim 1 or 2, both ends of the flexible enclosure body are near the shore, the contact surfaces of the two fixed parts are respectively attached to the inner wall of the reservoir intake, the top float (1) floats out of the water, the bottom foundation (3) retains a communication space between the bottom and the river bottom or lake bottom, and the plane where the interception surface is located is perpendicular to the inner wall of the reservoir intake.

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