A ditch ecological restoration method and ecological restoration system with trash rack

Abstract

The present invention relates to the technical field of ditch ecological restoration, and discloses a ditch ecological restoration method and an ecological restoration system with a trash rack, the method comprising: determining the spacing distance between the primary trash rack and the secondary trash rack according to the size information and water body information of the ditch, and setting the trash rack upstream of the ditch. Clearing the sludge in the ditch, mixing the sludge with cultivation soil to form breeding bags, and setting ecological grass seeds in the breeding bags. Determining the number of breeding bags according to the size of the ditch and the breeding bags, and arranging them in the ditch. By obtaining the growth information of the grass seeds in the breeding bags, combined with the size and water body information of the ditch, determining the water flow blocking degree of the primary trash rack, and determining the water flow blocking degree of the secondary trash rack accordingly. The present invention controls the trash rack by cleaning the sludge to breed grass seeds, thereby effectively repairing the ecological environment of the ditch.

Description

Technical Field

[0001] The present invention relates to the technical field of ditch ecological restoration, and in particular to a ditch ecological restoration method and an ecological restoration system with a trash rack. Background Art

[0002] In ecological restoration and water environment management, sediments, floating objects and sludge in rivers or ditches will have a significant impact on the fluidity and water quality of water bodies, especially in ditches with low flow rates, where pollutants are easily deposited and breed algae, leading to eutrophication of water bodies and affecting the surrounding ecological environment. Therefore, the reasonable design and layout of pollution interception devices have become an important means to effectively control the flow of pollutants and reduce water pollution.

[0003] At present, many trash rack designs have been applied to water treatment, and their main function is to block floating objects and slow down the spread of pollutants in the water. However, traditional trash racks are mostly used for cleaning management of large areas of water, and have limited effect on water flow control in small ditches, especially it is difficult to balance the water flow resistance and the need for water purification. In addition, the layout and spacing of trash racks often lack comprehensive consideration of water flow turbulence and ditch ecological needs, resulting in unstable pollution blocking effect, easy to cause water siltation or blockage, thereby further deteriorating water quality. Secondly, in ditch ecological restoration, the introduction of plants is an important means to improve the self-purification capacity of water bodies. By planting ecological vegetation such as grass seeds in the ditch, harmful substances in the water can be effectively absorbed and decomposed, and the self-purification of the water can be enhanced. However, how to reasonably arrange vegetation and control water flow rate to promote vegetation growth is still a technical problem facing ditch ecological restoration. Especially in the process of cleaning ditch sludge, how to make full use of these nutrients for vegetation cultivation and ensure that the trash rack effectively controls the spread of pollutants and nutrients is a technical problem that needs to be solved urgently.

[0004] Therefore, there is an urgent need to invent an ecological correction technology for ditches, which aims to solve the problem of how to reasonably and effectively control water flow and avoid water siltation in ditch ecological restoration in the existing technology, while making full use of the cleaned sludge to promote vegetation growth, thereby achieving sewage cleaning and purification in the ditch. Summary of the invention

[0005] In view of this, the present invention proposes a ditch ecological restoration method and an ecological restoration system with a trash rack, aiming to solve the problem of how to reasonably and effectively control water flow and avoid water siltation in ditch ecological restoration in the current technology, while making full use of the cleaned sludge to promote vegetation growth, thereby realizing sewage cleaning and sewage purification in the ditch.

[0006] The present invention proposes a method for ecological restoration of a ditch with a trash rack, comprising:

[0007] Acquiring the size information and water body information of the ditch, and determining the spacing distance between the primary trash rack and the secondary trash rack according to the size information and water body information of the ditch;

[0008] According to the spacing distance, the primary trash rack and the secondary trash rack are arranged upstream of the ditch;

[0009] Removing the sludge from the ditch, mixing the removed sludge with cultivation soil to form a breeding bag, and placing the ecological grass seeds to be cultivated in the breeding bag;

[0010] Determining the number of the breeding bags to be arranged according to the size information of the ditch and the size of the breeding bags, and arranging the breeding bags inside the ditch according to the number of arrangements;

[0011] The grass seed growth information in the breeding bag is obtained, the water flow blocking degree of the primary trash rack is determined according to the size information, water body information and grass seed growth information of the ditch, and the water flow blocking degree of the secondary trash rack is determined according to the water flow blocking degree of the primary trash rack.

[0012] Further, according to the ditch size information and water flow rate, determining the spacing between the primary trash rack and the secondary trash rack includes:

[0013] Obtaining the width of the ditch, the surface roughness of the ditch, and the turbulent characteristics of the water flow in the ditch, and determining the turbulent diffusion coefficient of the water flow in the ditch according to the surface roughness of the ditch and the turbulent characteristics of the water flow;

[0014] The real-time flow velocity of the water body in the ditch is obtained, and the width of the ditch, the turbulent diffusion coefficient, and the real-time flow velocity of the water body are substituted into Formula I to determine the interval distance, wherein Formula I is as follows:

[0015] ;

[0016] Wherein, L is the interval distance, β is the turbulent diffusion coefficient, W is the width of the ditch, α is the water flow attenuation coefficient, and v is the real-time flow velocity of the water body. is the preset velocity of water flow at the secondary trash rack, and ln is the natural logarithm.

[0017] Further, when determining the water flow blocking degree of the primary trash rack according to the ditch size information, water body information and grass seed growth information, it includes:

[0018] Determining the water flow blocking degree of the primary trash rack according to the water flow velocity of the ditch and the relationship between the water flow velocity and a preset water flow velocity;

[0019] When the water flow rate is less than or equal to the preset water flow rate, the preset water flow interception degree of the primary trash rack is determined as the water flow interception degree of the primary trash rack;

[0020] When the water flow rate is greater than the preset water flow rate, the adjustment coefficient is determined according to the flow rate difference between the water flow rate and the preset water flow rate, and the preset water flow interception degree adjusted according to the adjustment coefficient is used as the water flow interception degree of the first-level trash rack.

[0021] Furthermore, when determining the adjustment coefficient according to the flow velocity difference between the water body flow velocity and the preset water body flow velocity, it includes:

[0022] Determining the adjustment coefficient according to a relationship between the flow rate difference and a preconfigured first preset flow rate difference and a second preset flow rate difference;

[0023] When the flow rate difference is less than the first preset flow rate difference, the adjustment coefficient is determined to be M1;

[0024] When the flow rate difference is equal to or greater than the first preset flow rate difference, and the flow rate difference is less than the second preset flow rate difference, the adjustment coefficient is determined to be M2;

[0025] When the flow rate difference is equal to or greater than the second preset flow rate difference, the adjustment coefficient is determined to be M3;

[0026] The first preset flow rate difference is smaller than the second preset flow rate difference, and M1<M2<M3<1.

[0027] Further, when the adjustment coefficient is determined to be Mi, i=1,2,3, including:

[0028] Obtaining the turbidity of the water in the ditch, and determining whether to correct the adjustment coefficient Mi according to the relationship between the turbidity of the water and a preset turbidity;

[0029] When the turbidity of the water body is less than or equal to the preset turbidity, it is determined that the adjustment coefficient Mi is not corrected;

[0030] When the turbidity of the water body is greater than the preset turbidity, a correction coefficient is determined according to the turbidity difference between the turbidity of the water body and the preset turbidity, and the adjustment coefficient Mi is corrected according to the correction coefficient.

[0031] Furthermore, when determining the correction coefficient according to the turbidity difference between the turbidity of the water body and the preset turbidity, it includes:

[0032] Determining the correction coefficient according to a relationship between the turbidity difference and a preconfigured first preset turbidity difference and a second preset turbidity difference;

[0033] When the turbidity difference is less than the first preset turbidity difference, the correction coefficient is determined to be N3;

[0034] When the turbidity difference is greater than or equal to the first preset turbidity difference, and the turbidity difference is less than the second preset turbidity difference, the correction coefficient is determined to be N2;

[0035] When the turbidity difference is greater than or equal to the second preset turbidity difference, the correction coefficient is determined to be N1;

[0036] The first preset turbidity difference is smaller than the second preset turbidity difference, and N1<N2<N3<1.

[0037] Further, when the correction coefficient is determined to be Ni, i=1,2,3, including:

[0038] Acquire the grass seed growth stage in the grass seed growth information, wherein the grass seed growth stage includes: germination stage, seedling growth stage, tillering stage, young growth stage, reproductive stage and dormancy stage;

[0039] Obtaining the preset water flow impact resistance corresponding to each grass seed growth stage;

[0040] Acquiring a water flow velocity between the primary trash rack and the secondary trash rack, and determining a water flow impact force between the primary trash rack and the secondary trash rack according to the water flow velocity;

[0041] Determining whether to correct the correction coefficient Ni according to the relationship between the water flow impact force and the preset anti-water flow impact force;

[0042] When the water flow impact force is less than the preset anti-water flow impact force, it is determined that the correction coefficient Ni is not corrected;

[0043] When the water flow impact force is greater than or equal to the preset anti-water flow impact force, a correction coefficient is determined according to the impact force difference between the water flow impact force and the preset anti-water flow impact force, and the correction coefficient Ni is corrected according to the correction coefficient.

[0044] Furthermore, when determining the correction coefficient according to the impact force difference between the water flow impact force and the preset anti-water flow impact force, it includes:

[0045] Determine the correction coefficient according to the relationship between the impact force difference and a preconfigured first preset impact force difference and a second preset impact force difference;

[0046] When the impact force difference is less than the first preset impact force difference, the correction coefficient is determined to be D3;

[0047] When the impact force difference is greater than or equal to the first preset impact force difference, and the impact force difference is less than the second preset impact force difference, the correction coefficient is determined to be D2;

[0048] When the impact force difference is greater than or equal to the second preset impact force difference, the correction coefficient is determined to be D1;

[0049] The first preset impact force difference is smaller than the second preset impact force difference, and D1<D2<D1<1.

[0050] Further, when determining the water flow interception degree of the secondary trash rack according to the water flow interception degree of the primary trash rack, it includes:

[0051] The real-time flow velocity of the water body between the primary trash rack and the secondary trash rack, the real-time interception degree of the primary trash rack, and the turbulent diffusion coefficient of the water flow in the ditch are obtained, and the real-time flow velocity of the water body, the real-time interception degree and the turbulent diffusion coefficient are substituted into formula II to determine the water flow interception degree of the secondary trash rack, wherein the formula II is as follows:

[0052] ;

[0053] Wherein, R2 is the water flow interception degree of the secondary trash rack, R1 is the real-time interception degree of the primary trash rack, β is the turbulent diffusion coefficient, and v is the real-time flow velocity of the water body.

[0054] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging the first and second level trash racks upstream of the ditch, the diffusion path of pollutants is effectively controlled, and the interval distance of the trash racks is scientifically determined according to the size of the ditch and the flow rate of the water body, thereby improving the water flow and the effect of intercepting pollutants. By optimizing the interval design, on the one hand, the obstruction of the trash rack to the water flow can be reduced, the water body can be prevented from silting up at the trash rack, and the good water flow in the ditch can be maintained; on the other hand, through the graded interception design, the dirt concentration is weakened layer by layer, and the comprehensive interception capacity of the trash rack for pollutants is significantly improved. Secondly, by cleaning the sludge in the ditch and mixing it with the cultivation soil to form a breeding bag, the cleaned nutrients are effectively reused for the growth of ecological vegetation. The grass seeds to be cultivated are planted in the breeding bag, and these grass seeds can absorb pollutants in the water and grow, gradually purifying the water body. This design of sludge recycling and reuse not only saves the nutrients required for the growth of ecological vegetation, but also reduces the accumulation of pollutants in the ditch, provides favorable nutritional conditions for plant growth, and further improves the self-purification capacity of the ditch. In addition, by arranging the breeding bags, this scheme can also reasonably determine the number of breeding bags to be arranged according to the size information of the ditch and the volume of the breeding bags, so that the vegetation coverage rate reaches the optimal level and the water purification effect is maximized. At the same time, the reasonably arranged ecological grass seeds have the characteristics of pollution resistance and adsorption of pollutants. Through the root system of vegetation, they can effectively reduce harmful substances in the water body, enhance the ecological stability of the ditch, and maintain a high quality of the water body in the long term. Finally, by real-time monitoring the growth of grass seeds in the breeding bags, the water flow interception degree of the first and second level trash racks is dynamically adjusted according to the growth stage of the grass seeds and the water body information of the ditch, so as to effectively adapt to the changes in water flow rate and vegetation purification needs. Dynamically adjusting the interception degree of the trash rack ensures the interception effect of pollutants, and adjusts the water flow resistance according to the growth state of the grass seeds, so that the vegetation in the ditch can grow in a suitable flow rate environment, thereby further consolidating the ecological restoration effect and achieving long-term water quality maintenance and ecological balance.

[0055] On the other hand, the present application also provides a ditch ecological restoration system with a trash rack, comprising:

[0056] A distance assessment module, used to obtain the size information and water body information of the ditch, and determine the interval distance between the primary trash rack and the secondary trash rack according to the size information and water body information of the ditch;

[0057] a trash rack installation module, electrically connected to the distance assessment module, the trash rack installation module being configured with a plurality of trash racks, and the trash rack installation module being used to install the primary trash rack and the secondary trash rack upstream of the ditch according to the spacing distance;

[0058] A sludge removal module is arranged inside the ditch, and is used to remove the sludge in the ditch, and mix the removed sludge with cultivation soil to form a breeding bag, and the ecological grass seeds to be cultivated are arranged in the breeding bag;

[0059] A breeding bag installation module is electrically connected to the sludge removal module, and the sludge removal module is used to determine the number of breeding bags to be arranged according to the size information of the ditch and the size of the breeding bags, and arrange the breeding bags inside the ditch according to the number of arrangements;

[0060] The trash rack control module is used to obtain the grass seed growth information in the breeding bag, determine the water flow blocking degree of the first-level trash rack according to the size information, water body information and grass seed growth information of the ditch, and determine the water flow blocking degree of the second-level trash rack according to the water flow blocking degree of the first-level trash rack.

[0061] It can be understood that the ditch ecological restoration method and ecological restoration system with trash rack in the above embodiments of the present invention have the same beneficial effects, which will not be described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0063] Figure 1 A flowchart of a method for ecological restoration of a ditch with a trash rack provided in an embodiment of the present invention;

[0064] Figure 2 A functional block diagram of a ditch ecological restoration system with a trash rack provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0065] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0066] like Figure 1As shown, in some embodiments of the present application, this embodiment provides a method for ecological restoration of a ditch with a trash rack, comprising:

[0067] Step S100: Acquire the size information and water body information of the ditch, and determine the spacing distance between the primary trash rack and the secondary trash rack according to the size information and water body information of the ditch.

[0068] Specifically, when determining the spacing between the primary trash rack and the secondary trash rack based on the ditch size information and water flow velocity, it includes: obtaining the ditch width, the ditch surface roughness and the turbulent flow characteristics of the ditch, and determining the turbulent diffusion coefficient of the water flow in the ditch based on the ditch surface roughness and the turbulent flow characteristics. Obtain the real-time flow velocity of the water body in the ditch, and substitute the ditch width, turbulent diffusion coefficient and real-time flow velocity of the water body into formula I to determine the spacing distance, where formula I is as follows: Among them, L is the interval distance, β is the turbulent diffusion coefficient, W is the width of the ditch, α is the water flow attenuation coefficient, and v is the real-time flow velocity of the water body. is the preset velocity of water flow at the secondary trash rack, and ln is the natural logarithm.

[0069] It can be seen that by measuring the width of the ditch, surface roughness and turbulent characteristics of the water flow, the turbulent diffusion coefficient of the water flow in the ditch is determined to quantify the water flow diffusion. At the same time, the real-time flow velocity of the water body is obtained, and the width of the ditch, the turbulent diffusion coefficient and the real-time flow velocity are substituted into a specific calculation formula. According to the water flow attenuation law and the natural logarithmic function, the optimal spacing distance between the two levels of trash racks is obtained. This ensures that the water flow flows smoothly and the pollutants are effectively intercepted while meeting the pollution blocking effect.

[0070] It is understandable that by measuring parameters such as ditch width, surface roughness and turbulent characteristics of water bodies, a turbulent diffusion model of water flow in the ditch is established. The establishment of such a model is a key step, because the roughness of the ditch surface and the turbulent characteristics of the water flow directly affect the diffusion rate of the water body and the transmission path of pollutants. By calculating the turbulent diffusion coefficient, the intensity of water diffusion and mixing in the ditch can be quantitatively described, laying the foundation for the subsequent setting of trash racks. Then, by real-time monitoring of the water flow velocity in the ditch, the velocity parameters of the water flow are combined with the ditch width and turbulent diffusion coefficient, and substituted into formula I to calculate the reasonable spacing distance between the two levels of trash racks. In formula I, the water flow attenuation coefficient and the natural logarithm function are used to characterize the attenuation process of water flow to ensure the best effect of pollutant interception at the set distance. The application of natural logarithm here can accurately describe the exponential attenuation characteristics of the water flow, so that the gradual weakening of the kinetic energy of the water flow is fully considered in the calculation of the spacing distance, providing a scientific basis for the subsequent setting of the secondary trash rack in the ditch. Finally, by setting the interval between the primary and secondary trash racks, pollutants can be intercepted in stages, avoiding the risk of water flow blockage caused by concentrated interception at a single point. Since the primary trash rack plays a preliminary interception role, it blocks larger particles of pollutants, allowing the water flow to be diverted and initially purified before entering the secondary trash rack. The secondary trash rack plays a further filtering role, intercepting smaller particles of pollutants, thereby greatly improving the overall interception efficiency. In addition, the precise calculation of the interval distance also ensures that the ditch water flow can achieve graded interception of pollutants without affecting fluidity, effectively preventing water siltation and maintaining the natural flow of the ditch.

[0071] Step S200: Setting a primary trash rack and a secondary trash rack upstream of the ditch according to the spacing distance.

[0072] Step S300, clearing the sludge from the ditch, mixing the cleared sludge with cultivation soil to make a breeding bag, and placing the ecological grass seeds to be cultivated in the breeding bag.

[0073] Step S400: Determine the number of breeding bags to be arranged according to the size information of the ditch and the size of the breeding bags, and arrange the breeding bags inside the ditch according to the number of arrangements.

[0074] It can be seen that by scientifically arranging the first and second level trash racks upstream of the ditch, pollutants can be intercepted in stages, preventing them from spreading downstream and reducing water siltation. Clean the sludge in the ditch and mix it with the cultivation soil to make breeding bags, put the ecological grass seeds in them, and use the nutrients in the sludge to promote the growth of the grass seeds, which helps to improve the purification capacity of the water body. According to the size of the ditch and the size of the breeding bags, the breeding bags are reasonably determined and arranged so that the grass seeds are evenly covered in the ditch, thereby achieving an effective water ecological restoration effect.

[0075] It is understandable that the core step of achieving graded interception is to arrange the primary and secondary trash racks in the upstream of the ditch reasonably. The main function of the primary trash rack is to initially block larger floating objects and particles in the ditch water body, preventing these pollutants from spreading to the middle and lower reaches of the ditch and affecting the water quality. At the same time, the primary trash rack reduces the content of suspended matter in the water flow while blocking large particles of pollutants, so that the fluidity of the water body can be maintained. The secondary trash rack is located downstream of the primary trash rack, and undertakes the task of fine interception, blocking smaller particles of pollutants and further purifying the water body. This graded interception design can achieve layer-by-layer purification without affecting the fluidity of the water body, thereby ensuring the effective control and uniform distribution of pollutants. Secondly, in the process of water purification, it is very important to reasonably handle and utilize the sludge in the ditch. By mixing the sludge cleaned out of the ditch with the cultivation soil and making it into a breeding bag, not only the waste sludge is reasonably reused, but also the nutrients in the sludge are used to provide nutrients for the subsequent growth of grass seeds. In this way, not only the effect of ditch cleaning is achieved, but also the water quality can be improved through ecological restoration and the self-purification capacity of the ditch can be enhanced. This resource utilization of sludge is both economical and environmentally friendly, providing lasting support for ditch ecological restoration. Finally, by determining the appropriate number of breeding bags based on the ditch size information and the size of the breeding bags, these grass seed bags can be scientifically distributed in the ditch. Reasonable layout density can not only promote the uniform distribution and growth of grass seeds, but also fully cover the water area of ​​the ditch, making the entire water ecosystem more balanced. The ecological grass seeds in the breeding bags can not only absorb nutrients in the water through their own growth, but also absorb pollutants through the root system to further purify the water quality. This vegetation layout strategy fundamentally improves the ditch water environment and provides strong support for water purification and ecological restoration.

[0076] Step S500, obtaining grass seed growth information in the breeding bag, determining the water flow blocking degree of the primary trash rack according to the ditch size information, water body information and grass seed growth information, and determining the water flow blocking degree of the secondary trash rack according to the water flow blocking degree of the primary trash rack.

[0077] Specifically, when determining the water flow interception degree of the primary trash rack according to the size information, water body information and grass seed growth information of the ditch, it includes: determining the water flow interception degree of the primary trash rack according to the water body flow velocity of the ditch and the relationship between the water body flow velocity and the preset water body flow velocity: when the water body flow velocity is less than or equal to the preset water body flow velocity, the preset water flow interception degree of the primary trash rack is determined as the water flow interception degree of the primary trash rack. When the water body flow velocity is greater than the preset water body flow velocity, an adjustment coefficient is determined according to the flow velocity difference between the water body flow velocity and the preset water body flow velocity, and the preset water flow interception degree adjusted according to the adjustment coefficient is used as the water flow interception degree of the primary trash rack.

[0078] Specifically, when determining the adjustment coefficient according to the flow velocity difference between the water body flow velocity and the preset water body flow velocity, it includes: determining the adjustment coefficient according to the relationship between the flow velocity difference and the pre-configured first preset flow velocity difference and the second preset flow velocity difference. When the flow velocity difference is less than the first preset flow velocity difference, the adjustment coefficient is determined to be M1; when the flow velocity difference is equal to or greater than the first preset flow velocity difference, and the flow velocity difference is less than the second preset flow velocity difference, the adjustment coefficient is determined to be M2. When the flow velocity difference is equal to or greater than the second preset flow velocity difference, the adjustment coefficient is determined to be M3. Among them, the first preset flow velocity difference is less than the second preset flow velocity difference, and M1<M2<M3<1.

[0079] It is understandable that by comparing the current water flow velocity with the preset water flow velocity, the flow strength of the water body can be identified, and then it can be determined whether the interception degree of the first-level trash rack needs to be adjusted. If the water flow velocity is less than or equal to the preset flow velocity, it means that the water flow is in a relatively stable state. In this case, the preset interception degree of the first-level trash rack can be directly used to ensure that the water flow is not obstructed while achieving effective trash interception. When the water flow velocity is higher than the preset water flow velocity, the water flow becomes more turbulent, and the interception degree needs to be adaptively adjusted according to the difference between the water flow velocity and the preset water flow velocity. At this time, the interception degree is finely controlled by setting the adjustment coefficient, so that the first-level trash rack can flexibly respond to different water flow states. The setting of the adjustment coefficient is divided into grades according to the size of the flow velocity difference. Different flow velocity differences correspond to different adjustment coefficients (such as M1, M2, and M3) to ensure that the trash rack can maintain a reasonable interception capacity under high flow velocity conditions while avoiding excessive water flow obstruction. The graded design of the adjustment coefficient (M1<M2<M3<1) enables the system to adjust adaptively when the flow rate changes, which not only improves the efficiency of the trash rack, but also reduces the negative impact of water flow resistance on the ecological environment. Specifically, the adjustment coefficient is determined based on the range of the first and second preset flow rate differences. When the flow rate difference is less than the first preset flow rate difference, the lowest adjustment coefficient M1 is used to ensure a smaller interception degree and avoid interference with the flow of the water body at a smaller flow rate; when the flow rate difference is between the first and second preset flow rate differences, the medium adjustment coefficient M2 is used to appropriately increase the interception degree; when the flow rate difference is greater than or equal to the second preset flow rate difference, the maximum adjustment coefficient M3 is used to enhance the interception capacity of the trash rack and prevent the spread of pollutants caused by high flow rates. This multi-level adjustment mechanism effectively balances the water flow resistance and pollutant interception effect, so that the interception degree of the trash rack matches the actual conditions of the water body, providing a guarantee for achieving accurate water quality control.

[0080] Specifically, when the adjustment coefficient is determined to be Mi, i=1,2,3, including: obtaining the turbidity of the water body in the ditch, and determining whether to correct the adjustment coefficient Mi according to the relationship between the turbidity of the water body and the preset turbidity: when the turbidity of the water body is less than or equal to the preset turbidity, it is determined not to correct the adjustment coefficient Mi. When the turbidity of the water body is greater than the preset turbidity, the correction coefficient is determined according to the turbidity difference between the turbidity of the water body and the preset turbidity, and the adjustment coefficient Mi is corrected according to the correction coefficient.

[0081] Specifically, when determining the correction coefficient based on the turbidity difference between the turbidity of the water body and the preset turbidity, it includes: determining the correction coefficient based on the relationship between the turbidity difference and the pre-configured first preset turbidity difference and the second preset turbidity difference. When the turbidity difference is less than the first preset turbidity difference, the correction coefficient is determined to be N3. When the turbidity difference is greater than or equal to the first preset turbidity difference, and the turbidity difference is less than the second preset turbidity difference, the correction coefficient is determined to be N2. When the turbidity difference is greater than or equal to the second preset turbidity difference, the correction coefficient is determined to be N1. Among them, the first preset turbidity difference is less than the second preset turbidity difference, and N1<N2<N3<1.

[0082] It is understandable that the pollutant control effect can be optimized by reasonably adjusting the interception degree of the trash rack. When the turbidity of the water body is low, the pollutant content in the water flow is small. At this time, maintaining the current adjustment coefficient Mi can avoid excessive interception, ensure the natural fluidity of the water flow and reduce the burden on the trash rack. When the turbidity of the water body exceeds the preset value, it may indicate that the suspended matter in the water increases, the pollutant concentration increases, and the interception strength needs to be increased. Therefore, according to the turbidity difference, the correction coefficient (such as N1, N2, N3) is adjusted in stages to enhance the interception effect and achieve more accurate water quality control. Secondly, determining the correction coefficient by grading according to the preset turbidity difference is a flexible and intelligent adjustment method. Specifically, when the turbidity difference is small, setting a smaller correction coefficient (such as N3) can make appropriate adjustments in the interception strength to avoid excessive interference with low-polluted water flows. As the turbidity difference increases, by increasing the correction coefficient to N2 or N1, the interception capacity of the trash rack can be effectively improved, thereby better intercepting suspended matter and particulate matter in highly polluted water flows. This grading setting can be precisely regulated according to the degree of water pollution, avoiding waste of resources during water purification and ensuring the effect of water quality improvement. Finally, the adjustment coefficient and correction coefficient can meet different purification needs under various water quality conditions, forming a modular adaptive control mechanism. Through this solution, even in the case of changes in water flow rate and water quality fluctuations, it can respond quickly and adjust the interception degree of the trash rack in time to achieve dynamic control. This design is particularly suitable for small ditches and ecological restoration water environments with frequent pollution changes, which helps to improve the water purification efficiency of ditches and reduce maintenance costs.

[0083] Specifically, when the correction coefficient is determined to be Ni, i=1,2,3, including: obtaining the grass seed growth stage in the grass seed growth information, wherein the grass seed growth stage includes: germination period, seedling growth period, tillering period, young and strong growth period, reproductive period and dormancy period. Obtain the preset water flow impact resistance corresponding to each grass seed growth stage. Obtain the water flow velocity between the primary trash rack and the secondary trash rack, and determine the water flow impact force between the primary trash rack and the secondary trash rack according to the water flow velocity. According to the relationship between the water flow impact force and the preset water flow impact resistance, determine whether to correct the correction coefficient Ni: when the water flow impact force is less than the preset water flow impact resistance, it is determined not to correct the correction coefficient Ni. When the water flow impact force is greater than or equal to the preset water flow impact resistance, the correction coefficient is determined according to the impact force difference between the water flow impact force and the preset water flow impact resistance, and the correction coefficient Ni is corrected according to the correction coefficient.

[0084] Specifically, when determining the correction coefficient based on the impact force difference between the water flow impact force and the preset anti-water flow impact force, it includes: determining the correction coefficient based on the relationship between the impact force difference and the pre-configured first preset impact force difference and the second preset impact force difference. When the impact force difference is less than the first preset impact force difference, the correction coefficient is determined to be D3. When the impact force difference is greater than or equal to the first preset impact force difference, and the impact force difference is less than the second preset impact force difference, the correction coefficient is determined to be D2. When the impact force difference is greater than or equal to the second preset impact force difference, the correction coefficient is determined to be D1. Among them, the first preset impact force difference is less than the second preset impact force difference, and D1<D2<D1<1.

[0085] It is understandable that the relationship between the impact of water flow and the growth of grass seeds is balanced through a refined control mechanism to ensure the best water flow management effect in the process of ditch ecological restoration. The calculation of water flow impact force is closely related to the growth stage of grass seeds, and there are significant differences in the tolerance of grass seeds to water flow at different growth stages. For example, during the germination period or seedling growth period of grass seeds, the impact force of water flow is more harmful to grass seeds. Therefore, at this stage, it is necessary to accurately calculate the difference between the impact force of water flow and the anti-water flow impact force of grass seeds to determine whether the correction coefficient needs to be adjusted. This dynamic adjustment not only helps to protect grass seeds from damage caused by excessive water flow, but also provides a suitable water flow environment for the growth of grass seeds in the later stage by adjusting the water flow blocking effect. In addition, the comparison between the preset anti-water flow impact force and the actual water flow impact force not only takes into account the intensity of water flow, but also combines the specific growth needs of grass seeds at different growth stages. For example, grass seeds in the young and strong growth period have a strong adaptability to water flow impact force, while in the dormant period, the grass seeds have a weaker impact resistance, which requires adjusting the correction coefficient according to the characteristics of grass seeds at different growth stages. By setting appropriate correction coefficients (such as D1, D2, and D3), the water flow interception degree can be dynamically adjusted according to the changes in the water flow impact force to ensure the best growth environment for grass seeds. In practical applications, the correction of the correction coefficient enables the water flow interception capacity of the trash rack to flexibly respond to different water flow conditions and grass seed growth stages, thereby achieving the effect of effectively intercepting pollutants in the water body and promoting the healthy growth of ecological plants. By accurately calculating the difference in water flow impact force and combining the characteristics of the grass seed growth stage, the technical principle can adjust the function of the trash rack in a targeted manner to achieve multiple goals of ditch ecological restoration. Finally, through the relationship between the water flow impact force difference and the preset impact force difference, detailed adjustments can be made according to water flow conditions. For example, when the water flow impact force difference is small (less than the first preset impact force difference), it is believed that the water flow has little effect on the grass seeds, so no correction is required or only a slight adjustment is made (D3). When the water flow impact force difference is large (greater than the second preset impact force difference), the water flow resistance will be increased (through D1) to reduce the impact on the growth of grass seeds. This flexible adjustment mechanism not only ensures the growth conditions of grass seeds at different growth stages, but also ultimately achieves the goal of ditch ecological restoration by reducing inappropriate water flow impact.

[0086] Specifically, when determining the water flow interception degree of the secondary trash rack according to the water flow interception degree of the primary trash rack, it includes: obtaining the real-time flow velocity of the water body between the primary trash rack and the secondary trash rack, the real-time interception degree of the primary trash rack, and the turbulent diffusion coefficient of the water flow in the ditch, and substituting the real-time flow velocity of the water body, the real-time interception degree and the turbulent diffusion coefficient into formula II to determine the water flow interception degree of the secondary trash rack, wherein formula II is as follows: Among them, R2 is the water flow interception degree of the secondary trash rack, R1 is the real-time interception degree of the primary trash rack, β is the turbulent diffusion coefficient, and v is the real-time flow velocity of the water body.

[0087] It can be seen that by analyzing the dynamic relationship between the primary and secondary trash racks, the water flow interception degree of the secondary trash rack can be accurately adjusted. The real-time interception degree of the primary trash rack is closely related to the actual conditions of the water flow. As a preliminary water flow interception measure, its effect directly affects the design and function of the secondary trash rack. By obtaining the real-time flow velocity of the water body between the primary and secondary trash racks, the real-time interception degree of the primary trash rack and the turbulent diffusion coefficient of the water flow, and combining formula II for calculation, the water flow interception degree of the secondary trash rack can be adjusted according to the actual water flow state. Specifically, the turbulent diffusion coefficient β and the real-time flow velocity v of the water body are key factors that affect the distribution and transfer characteristics of the water flow in the ditch. By substituting these parameters into formula II, the interception degree suitable for the secondary trash rack can be calculated according to the actual effect of the primary trash rack and the dynamic changes of the water flow. This calculation method can achieve precise adjustment of the water flow, making the design of the secondary trash rack more adapted to the water flow characteristics in the actual environment, thereby effectively intercepting pollutants and protecting the ecological environment.

[0088] It is understandable that the first-level trash rack intercepts part of the pollutants by setting its initial interception degree and slows down the speed of the water flow, which provides the basic conditions for the subsequent water flow regulation of the second-level trash rack. The real-time interception degree and water flow velocity of the first-level trash rack are the key parameters for calculating the water flow interception degree of the second-level trash rack. By measuring the water flow velocity behind the first-level trash rack, the current flow state of the water flow can be obtained, so as to reasonably calculate the water flow pressure that the second-level trash rack should bear. Secondly, the turbulent diffusion coefficient (β) of the water flow is another decisive factor, which directly affects the propagation speed and diffusion characteristics of the water flow in the ditch. The size of the turbulent diffusion coefficient will determine the degree of mixing of the water flow, which in turn affects the interception effect of the trash rack. If the turbulent characteristics of the water flow are strong, it means that the pollutants in the water flow are more easily dispersed, and the trash rack needs to have a higher resistance to effectively prevent these pollutants from continuing to spread. By monitoring the real-time flow velocity (v) and turbulent diffusion coefficient of the water flow, combined with the effect of the primary trash rack, the water flow interception degree of the secondary trash rack can be dynamically adjusted to ensure that the residual pollutants can be captured more efficiently without causing excessive water flow resistance. In addition, the introduction of formula II provides a mathematical model for this process, so that all factors affecting the water flow interception degree can be quantified and calculated. According to the actual interception effect of the primary trash rack and the real-time dynamic situation of the ditch water flow, the interception degree required for the secondary trash rack can be derived by formula II. This not only ensures that the secondary trash rack can adapt to the water flow environment at different flow rates, but also improves the flexibility and accuracy of ditch ecological restoration. By dynamically adjusting the interception degree of the secondary trash rack, it is possible to respond to changes in water flow conditions in real time, thereby continuously and effectively intercepting floating objects and other pollutants. Finally, it is worth noting that as the water flow conditions in the ditch change, the linkage adjustment mechanism of the primary and secondary trash racks can be automatically adjusted according to the actual flow rate and water state. This flexible dynamic adjustment not only improves the efficiency of the trash rack, but also avoids water siltation or overflow caused by too fast or too slow water flow, thereby improving water quality while ensuring the ecological stability of the ditch.

[0089] In the above embodiment, by arranging the first and second level trash racks upstream of the ditch, the diffusion path of pollutants is effectively controlled, and the spacing distance of the trash racks is scientifically determined according to the size of the ditch and the flow rate of the water body, thereby improving the water flow and the effect of intercepting pollutants. By optimizing the spacing design, on the one hand, it is possible to reduce the obstruction of the trash rack to the water flow, avoid the siltation of the water body at the trash rack, and maintain good water flow in the ditch. On the other hand, through the graded interception design, the dirt concentration is weakened layer by layer, and the comprehensive interception capacity of the trash rack for pollutants is significantly improved. Secondly, by cleaning the sludge in the ditch and mixing it with the cultivation soil to form a breeding bag, the cleaned nutrients are effectively reused for the growth of ecological vegetation. The grass seeds to be cultivated are planted in the breeding bag, and these grass seeds can absorb pollutants in the water and grow, gradually purifying the water body. This design of sludge recycling and reuse not only saves the nutrients required for the growth of ecological vegetation, but also reduces the accumulation of pollutants in the ditch, provides favorable nutritional conditions for plant growth, and further improves the self-purification capacity of the ditch. In addition, by arranging the breeding bags, this scheme can also reasonably determine the number of breeding bags to be arranged according to the size information of the ditch and the volume of the breeding bags, so that the vegetation coverage rate reaches the optimal level and the water purification effect is maximized. At the same time, the reasonably arranged ecological grass seeds have the characteristics of pollution resistance and adsorption of pollutants. Through the root system of vegetation, they can effectively reduce harmful substances in the water body, enhance the ecological stability of the ditch, and maintain a high quality of the water body in the long term. Finally, by real-time monitoring the growth of grass seeds in the breeding bags, the water flow interception degree of the first and second level trash racks is dynamically adjusted according to the growth stage of the grass seeds and the water body information of the ditch, so as to effectively adapt to the changes in water flow rate and vegetation purification needs. Dynamically adjusting the interception degree of the trash rack ensures the interception effect of pollutants, and adjusts the water flow resistance according to the growth state of the grass seeds, so that the vegetation in the ditch can grow in a suitable flow rate environment, thereby further consolidating the ecological restoration effect and achieving long-term water quality maintenance and ecological balance.

[0090] In another preferred embodiment based on the above embodiment, Figure 2 As shown, this embodiment provides a ditch ecological restoration system with a trash rack, including: a distance assessment module, a trash rack installation module, a sludge removal module, a breeding bag installation module and a trash rack control module.

[0091] Specifically, the distance assessment module is used to obtain the size information and water body information of the ditch, and determine the interval distance between the primary trash rack and the secondary trash rack based on the size information and water body information of the ditch. The trash rack installation module is electrically connected to the distance assessment module, and the trash rack installation module is configured with a plurality of trash racks. The trash rack installation module is used to set the primary trash rack and the secondary trash rack upstream of the ditch according to the interval distance. The sludge removal module is arranged inside the ditch, and the sludge removal module is used to remove the sludge in the ditch, and mix the removed sludge with the cultivation soil to make a breeding bag, and set the ecological grass seeds to be cultivated in the breeding bag. The breeding bag installation module is electrically connected to the sludge removal module, and the sludge removal module is used to determine the number of breeding bags to be arranged according to the size information of the ditch and the size of the breeding bags, and arrange the breeding bags inside the ditch according to the number of arrangements. The trash rack control module is used to obtain the grass seed growth information in the breeding bag, determine the water flow blocking degree of the first-level trash rack according to the ditch size information, water body information and grass seed growth information, and determine the water flow blocking degree of the second-level trash rack according to the water flow blocking degree of the first-level trash rack.

[0092] It can be understood that the ditch ecological restoration method and ecological restoration system with trash rack in the above embodiments of the present invention have the same beneficial effects, which will not be described in detail.

[0093] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0094] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0095] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0096] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for ecological restoration of a ditch with a trash rack, characterized in that: include: Acquiring the size information and water body information of the ditch, and determining the spacing distance between the primary trash rack and the secondary trash rack according to the size information and water body information of the ditch; According to the spacing distance, the primary trash rack and the secondary trash rack are arranged upstream of the ditch; Removing the sludge from the ditch, mixing the removed sludge with cultivation soil to form a breeding bag, and placing the ecological grass seeds to be cultivated in the breeding bag; Determining the number of the breeding bags to be arranged according to the size information of the ditch and the size of the breeding bags, and arranging the breeding bags inside the ditch according to the number of arrangements; Acquire the grass seed growth information in the breeding bag, determine the water flow blocking degree of the primary trash rack according to the size information, water body information and grass seed growth information of the ditch, and determine the water flow blocking degree of the secondary trash rack according to the water flow blocking degree of the primary trash rack; When determining the spacing between the primary trash rack and the secondary trash rack based on the ditch size information and water flow rate, it includes: Obtaining the width of the ditch, the surface roughness of the ditch, and the turbulent characteristics of the water flow in the ditch, and determining the turbulent diffusion coefficient of the water flow in the ditch according to the surface roughness of the ditch and the turbulent characteristics of the water flow; The real-time flow velocity of the water body in the ditch is obtained, and the width of the ditch, the turbulent diffusion coefficient, and the real-time flow velocity of the water body are substituted into Formula I to determine the interval distance, wherein Formula I is as follows: ; Wherein, L is the interval distance, β is the turbulent diffusion coefficient, W is the width of the ditch, α is the water flow attenuation coefficient, and v is the real-time flow velocity of the water body. is the preset velocity of water flow at the secondary trash rack, and ln is the natural logarithm.

2. The method for ecological restoration of a ditch with a trash rack according to claim 1, characterized in that: When determining the water flow blocking degree of the primary trash rack according to the ditch size information, water body information and grass seed growth information, it includes: Determining the water flow blocking degree of the primary trash rack according to the water flow velocity of the ditch and the relationship between the water flow velocity and a preset water flow velocity; When the water flow rate is less than or equal to the preset water flow rate, the preset water flow interception degree of the primary trash rack is determined as the water flow interception degree of the primary trash rack; When the water flow rate is greater than the preset water flow rate, the adjustment coefficient is determined according to the flow rate difference between the water flow rate and the preset water flow rate, and the preset water flow interception degree adjusted according to the adjustment coefficient is used as the water flow interception degree of the first-level trash rack.

3. The method for ecological restoration of a ditch with a trash rack according to claim 2, characterized in that: When determining the adjustment coefficient according to the flow velocity difference between the water body flow velocity and the preset water body flow velocity, it includes: Determining the adjustment coefficient according to a relationship between the flow rate difference and a preconfigured first preset flow rate difference and a second preset flow rate difference; When the flow rate difference is less than the first preset flow rate difference, the adjustment coefficient is determined to be M1; When the flow rate difference is equal to or greater than the first preset flow rate difference, and the flow rate difference is less than the second preset flow rate difference, the adjustment coefficient is determined to be M2; When the flow rate difference is equal to or greater than the second preset flow rate difference, the adjustment coefficient is determined to be M3; The first preset flow rate difference is smaller than the second preset flow rate difference, and M1<M2<M3<1.

4. The method for ecological restoration of a ditch with a trash rack according to claim 3, characterized in that: When the adjustment coefficient is determined to be Mi, i=1,2,3, including: Obtaining the turbidity of the water in the ditch, and determining whether to correct the adjustment coefficient Mi according to the relationship between the turbidity of the water and a preset turbidity; When the turbidity of the water body is less than or equal to the preset turbidity, it is determined that the adjustment coefficient Mi is not corrected; When the turbidity of the water body is greater than the preset turbidity, a correction coefficient is determined according to the turbidity difference between the turbidity of the water body and the preset turbidity, and the adjustment coefficient Mi is corrected according to the correction coefficient.

5. The method for ecological restoration of a ditch with a trash rack according to claim 4, characterized in that: When determining the correction coefficient according to the turbidity difference between the turbidity of the water body and the preset turbidity, it includes: Determining the correction coefficient according to a relationship between the turbidity difference and a preconfigured first preset turbidity difference and a second preset turbidity difference; When the turbidity difference is less than the first preset turbidity difference, the correction coefficient is determined to be N3; When the turbidity difference is greater than or equal to the first preset turbidity difference, and the turbidity difference is less than the second preset turbidity difference, the correction coefficient is determined to be N2; When the turbidity difference is greater than or equal to the second preset turbidity difference, the correction coefficient is determined to be N1; The first preset turbidity difference is smaller than the second preset turbidity difference, and N1<N2<N3<1.

6. The method for ecological restoration of a ditch with a trash rack according to claim 5, characterized in that: When the correction coefficient is determined to be Ni, i=1,2,3, including: Acquire the grass seed growth stage in the grass seed growth information, wherein the grass seed growth stage includes: germination stage, seedling growth stage, tillering stage, young growth stage, reproductive stage and dormancy stage; Obtaining the preset water flow impact resistance corresponding to each grass seed growth stage; Acquiring a water flow velocity between the primary trash rack and the secondary trash rack, and determining a water flow impact force between the primary trash rack and the secondary trash rack according to the water flow velocity; Determining whether to correct the correction coefficient Ni according to the relationship between the water flow impact force and the preset anti-water flow impact force; When the water flow impact force is less than the preset anti-water flow impact force, it is determined that the correction coefficient Ni is not corrected; When the water flow impact force is greater than or equal to the preset anti-water flow impact force, a correction coefficient is determined according to the impact force difference between the water flow impact force and the preset anti-water flow impact force, and the correction coefficient Ni is corrected according to the correction coefficient.

7. The method for ecological restoration of a ditch with a trash rack according to claim 6, characterized in that: When determining the correction coefficient according to the impact force difference between the water flow impact force and the preset anti-water flow impact force, it includes: Determine the correction coefficient according to the relationship between the impact force difference and a preconfigured first preset impact force difference and a second preset impact force difference; When the impact force difference is less than the first preset impact force difference, the correction coefficient is determined to be D3; When the impact force difference is greater than or equal to the first preset impact force difference, and the impact force difference is less than the second preset impact force difference, the correction coefficient is determined to be D2; When the impact force difference is greater than or equal to the second preset impact force difference, the correction coefficient is determined to be D1; The first preset impact force difference is smaller than the second preset impact force difference, and D1<D2<D1<1.

8. The method for ecological restoration of a ditch with a trash rack according to claim 1, characterized in that: Determining the water flow interception degree of the secondary trash rack according to the water flow interception degree of the primary trash rack comprises: The real-time flow velocity of the water body between the primary trash rack and the secondary trash rack, the real-time interception degree of the primary trash rack, and the turbulent diffusion coefficient of the water flow in the ditch are obtained, and the real-time flow velocity of the water body, the real-time interception degree and the turbulent diffusion coefficient are substituted into formula II to determine the water flow interception degree of the secondary trash rack, wherein the formula II is as follows: ; Wherein, R2 is the water flow interception degree of the secondary trash rack, R1 is the real-time interception degree of the primary trash rack, β is the turbulent diffusion coefficient, and v is the real-time flow velocity of the water body.

9. A ditch ecological restoration system with a trash rack, applicable to a ditch ecological restoration method with a trash rack as claimed in any one of claims 1 to 8, characterized in that: include: A distance assessment module, used to obtain the size information and water body information of the ditch, and determine the interval distance between the primary trash rack and the secondary trash rack according to the size information and water body information of the ditch; a trash rack installation module, electrically connected to the distance assessment module, the trash rack installation module being configured with a plurality of trash racks, and the trash rack installation module being used to install the primary trash rack and the secondary trash rack upstream of the ditch according to the spacing distance; A sludge removal module is arranged inside the ditch, and is used to remove the sludge in the ditch, and mix the removed sludge with cultivation soil to form a breeding bag, and the ecological grass seeds to be cultivated are arranged in the breeding bag; A breeding bag installation module is electrically connected to the sludge removal module, and is used to determine the number of breeding bags to be arranged according to the size information of the ditch and the size of the breeding bags, and to arrange the breeding bags inside the ditch according to the number of arrangements; The trash rack control module is used to obtain the grass seed growth information in the breeding bag, determine the water flow blocking degree of the first-level trash rack according to the size information, water body information and grass seed growth information of the ditch, and determine the water flow blocking degree of the second-level trash rack according to the water flow blocking degree of the first-level trash rack.

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