Intelligent generation method of polder eutrophic water treatment scheme

Abstract

The invention discloses a polder eutrophic water treatment scheme intelligent generation method, and relates to the technical field of environmental protection. Comprising the steps of obtaining a land utilization form and nitrogen and phosphorus pollution load data of a polder; constructing a technical library based on nutrient salt reduction technologies of different land utilization forms; according to the nitrogen and phosphorus pollution load data, various technologies in the technology library are graded, and an automatic grading system is constructed; calculating the proportion weighted weight of the contribution of different land utilization forms to the polder water eutrophication, and dividing the to-be-repaired polder eutrophication into different grades according to the weighted value; matching the eutrophication grade of the polder to be repaired with the automatic grading system, automatically distributing the technology of the corresponding grade, and outputting a treatment technical scheme; by arranging a monitoring system, the treatment technical scheme is adjusted, and a personalized treatment scheme with one policies and one policy is formulated. According to the invention, a rapid intelligent solution is provided for the eutrophication problem of different polders, and a decision is provided for individual precise treatment of one polder and one policy of the polder.

Description

Technical Field

[0001] The present invention relates to the field of environmental protection technology, and more specifically to an intelligent generation method for a eutrophic water treatment plan for a dike. Background Art

[0002] Dikes are a form of artificial land use, mainly distributed in low-lying areas along rivers and lakes. They are separated from rivers, lakes and other water bodies by dams, and have artificial irrigation and drainage systems inside.

[0003] This type of land is called "wei" in the lower reaches of the Yangtze River, and "yuan" in the middle reaches, collectively referred to as "weiyuan". Due to the diverse land use forms of weiyuan, different sizes and pollution contribution rates, it is difficult for management departments to choose appropriate governance plans, and governance plans between different weiyuan are also difficult to imitate and replicate. Therefore, there is currently a lack of mature governance technologies and successful governance cases.

[0004] Therefore, it is an urgent problem for those skilled in the art to propose an intelligent generation method for eutrophic water management solutions for dikes to solve the difficulties existing in the prior art. Summary of the invention

[0005] In view of this, the present invention provides an intelligent generation method for the management plan of eutrophic water bodies in dikes, provides a fast and intelligent solution to the eutrophication problems of different dikes, and provides decision-making for the personalized and precise management of each dike.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A method for intelligently generating a eutrophic water treatment plan for a dike includes the following steps:

[0008] Obtain the land use patterns and nitrogen and phosphorus pollution load data of the dikes;

[0009] Build a technology library based on nutrient reduction technologies for different land use forms;

[0010] According to the nitrogen and phosphorus pollution load data, various technologies in the technology library are graded and an automatic classification system is built;

[0011] Calculate the weighted proportion of different land use forms' contribution to eutrophication of dike water bodies, and divide the dike eutrophication to be restored into different levels according to the weight value;

[0012] Match the eutrophication level of the dike to be repaired with the automatic grading system, automatically assign the technology of the corresponding level, and output the technical plan for the treatment of the dike eutrophic water body;

[0013] By setting up a monitoring system to monitor water quality dynamics, the technical plan for the management of eutrophic water bodies in dikes is adjusted according to the management objectives and water quality dynamics, and personalized management plans are formulated for each dike.

[0014] Optional land use forms include: residential, artificial forest, natural forest, dry field, paddy field, vegetable greenhouse, abandoned land, wetland, ditch pond and lake.

[0015] Optionally, based on the nutrient reduction technologies of different land use forms, the specific contents of the technology library are as follows:

[0016] For each land use form, several cutting-edge nitrogen and phosphorus nutrient reduction technologies are collected, and the technical parameters of each technology are linked to the name of the land use form; each technology is prefixed according to the value obtained by reducing capacity × cost-effectiveness, so as to build all the collected technologies into a technology library.

[0017] Optional, cost performance is the cost reduction of the same equivalent of nitrogen and phosphorus, unit is ￥ / g·m 2 .

[0018] Optionally, the weighted weights of the proportions of different land use forms contributing to the eutrophication of the dike water body are calculated, and the eutrophication of the dike to be restored is divided into different levels according to the weight values. The specific contents are as follows:

[0019] Calculate the proportional weighted weight of all land use forms contributing to eutrophication in each embankment:

[0020]

[0021] Among them, Wi is the weight value of the i-th polder, An% is the area ratio of the n-th land use form in the i-th polder, ΔNn and ΔPn are the N and P load change values ​​of the n-th land use form in the i-th polder, and n is the number of land use types in the i-th polder;

[0022] The calculation formula of ΔNn is:

[0023] The calculation formula of ΔPn is:

[0024] Among them, after obtaining n weight values ​​W, the numerical range of W1-Wn is divided into three types: the weight values ​​distributed in the first 30% are severe eutrophication levels; the weight values ​​distributed in the first 30%-70% are moderate eutrophication levels; the weight values ​​distributed in the last 30% are general eutrophication levels.

[0025] Optionally, the eutrophication level of the embankment to be repaired is matched with the automatic grading system, and the corresponding level of technology is automatically assigned. The specific content of the technical solution for the treatment of eutrophic water bodies in the embankment is output as follows:

[0026] Conduct surveys on the dikes to be restored to obtain data on land use patterns and nitrogen and phosphorus pollution loads;

[0027] Calculate the eutrophication weight of the dike to be restored;

[0028] According to the weight value, the corresponding eutrophication level of the dike is selected in the automatic classification system;

[0029] The automatic grading system will automatically match the governance technology solution.

[0030] Optionally, a monitoring system can be set up to monitor the dynamics of water quality. According to the management objectives and water quality dynamics, the technical plan for the management of eutrophic water bodies in the dikes can be adjusted to formulate a personalized management plan for each dike. The specific contents are as follows:

[0031] Communicate with users and set governance goals;

[0032] According to the technical solution automatically matched by the automatic grading system, the eutrophic water bodies to be repaired are treated;

[0033] Set up a monitoring system to monitor water quality dynamics, adjust the treatment technology plan in combination with the treatment objectives, and once the water quality stabilizes, form a personalized treatment plan for each embankment.

[0034] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses an intelligent generation method for a eutrophic water treatment solution for a dike, and its beneficial effects are:

[0035] The present invention collects various land use forms, constructs a technology library using different nitrogen and phosphorus nutrient reduction technologies, and constructs an automatic grading system to automatically match the management technology according to the specific conditions of each dike, builds an accurate management plan, and provides decision-making for the personalized and accurate management of the dikes with "one dike (dike) one policy". BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0037] Figure 1 The present invention provides a flowchart of a method for intelligently generating a eutrophic water treatment solution for a dike. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1 As shown, the present invention discloses an intelligent generation method for a eutrophic water treatment scheme of a dike, comprising the following steps:

[0040] Obtain the land use patterns and nitrogen and phosphorus pollution load data of the dikes;

[0041] Build a technology library based on nutrient reduction technologies for different land use forms;

[0042] According to the nitrogen and phosphorus pollution load data, various technologies in the technology library are graded and an automatic classification system is built;

[0043] Calculate the weighted proportion of different land use forms' contribution to eutrophication of dike water bodies, and divide the dike eutrophication to be restored into different levels according to the weight value;

[0044] Match the eutrophication level of the dike to be repaired with the automatic grading system, automatically assign the technology of the corresponding level, and output the technical plan for the treatment of the dike eutrophic water body;

[0045] By setting up a monitoring system to monitor water quality dynamics, the technical plan for the management of eutrophic water bodies in dikes is adjusted according to the management objectives and water quality dynamics, and personalized management plans are formulated for each dike.

[0046] Furthermore, the land use forms include: residential, artificial forests, natural forests, dry fields, paddy fields, vegetable greenhouses, abandoned farmland, wetlands, ditches and ponds, and lakes.

[0047] Furthermore, based on the nutrient reduction technologies of different land use forms, the specific contents of the technology library are as follows:

[0048] For each land use form, several cutting-edge nitrogen and phosphorus nutrient reduction technologies are collected, and the technical parameters of each technology are linked to the name of the land use form; each technology is prefixed according to the value obtained by reducing capacity × cost-effectiveness, so as to build all the collected technologies into a technology library.

[0049] Furthermore, the cost performance ratio is the cost reduction of the same equivalent of nitrogen and phosphorus, and the unit is ￥ / g·m 2 .

[0050] Furthermore, the weighted weights of the proportions of different land use forms contributing to the eutrophication of the dike water body are calculated, and the eutrophication of the dike to be restored is divided into different levels according to the weight values. The specific contents are as follows:

[0051] Calculate the proportional weighted weight of all land use forms contributing to eutrophication in each embankment:

[0052]

[0053] Among them, Wi is the weight value of the i-th polder, An% is the area ratio of the n-th land use form in the i-th polder, ΔNn and ΔPn are the N and P load change values ​​of the n-th land use form in the i-th polder, and n is the number of land use types in the i-th polder;

[0054] The calculation formula of ΔNn is:

[0055] The calculation formula of ΔPn is:

[0056] Among them, after obtaining n weight values ​​W, the numerical range of W1-Wn is divided into three types: the weight values ​​distributed in the first 30% are severe eutrophication levels; the weight values ​​distributed in the first 30%-70% are moderate eutrophication levels; the weight values ​​distributed in the last 30% are general eutrophication levels.

[0057] Furthermore, the eutrophication level of the embankment to be repaired is matched with the automatic grading system, and the corresponding level of technology is automatically allocated. The specific content of the technical solution for the treatment of eutrophic water bodies in the embankment is output as follows:

[0058] Conduct surveys on the dikes to be restored to obtain data on land use patterns and nitrogen and phosphorus pollution loads;

[0059] Calculate the eutrophication weight of the dike to be restored;

[0060] According to the weight value, the corresponding eutrophication level of the dike is selected in the automatic classification system;

[0061] The automatic grading system will automatically match the governance technology solution.

[0062] Furthermore, by setting up a monitoring system to monitor the dynamics of water quality, the technical plan for the management of eutrophic water bodies in the dikes is adjusted according to the management objectives and water quality dynamics, and a personalized management plan for each dike is formulated. The specific contents are as follows:

[0063] Communicate with users and set governance goals;

[0064] According to the technical solution automatically matched by the automatic grading system, the eutrophic water bodies to be repaired are treated;

[0065] Set up a monitoring system to monitor water quality dynamics, adjust the treatment technology plan in combination with the treatment objectives, and once the water quality stabilizes, form a personalized treatment plan for each embankment.

[0066] In a specific embodiment, more than 20 embankments are randomly selected in the middle and lower reaches of the Yangtze River to investigate the frequency of each land use form in the embankment and the area proportion in the embankment; the land use forms include: residential, artificial forest, natural forest, dry field, paddy field, vegetable greenhouse, abandoned farmland, wetland, ditch pond, lake, etc.;

[0067] Determine the annual average influent and effluent nitrogen and phosphorus nutrient concentrations of the entire embankment and each land use form, and calculate the nitrogen and phosphorus pollution contribution rate of each land use form;

[0068] Construct a technology library: for each land use form, collect 1-3 nitrogen and phosphorus nutrient reduction technologies from Chinese and foreign literature and cases, and link the technical parameters of each technology to the technology name; according to the value of reduction capacity × cost performance (the cost of reducing a certain amount of nitrogen and phosphorus), add prefixes a, b, c to each technology, and automatically divide it into three levels (no division when there is only one technology, and a and b when there are only two technologies); put these technologies into three technology packages respectively; the three technology packages are: 3.1 land (residential, artificial forest, natural forest, dry field, vegetable greenhouse, abandoned farmland) nutrient reduction technology, 3.2 terrestrial and aquatic transition zone (paddy field, wetland) nutrient reduction technology, 3.3 water quality improvement technology (ditch pond, lake);

[0069] To build an automatic grading system, the operations are as follows:

[0070] 1. When the land area accounts for ≥50% and the water area is ≤10%, select the 3.1 and 3.2 technology packages; within the technology package, sort by the area ratio × nitrogen contribution rate × phosphorus contribution rate of each land use form. The top one (two) will point to the corresponding a technology, the middle two will point to the corresponding b technology, and the bottom two will point to c technology; all those without b or c technology will point to a technology; at this time, according to the governance objectives, you can choose or abandon the 3.3 technology package;

[0071] 2. When the land area accounts for 20%-50% and the water area is 10%-80%, select 3.1, 3.2 and 3.3 technology packages. In the technology packages, sort them according to the values ​​of area ratio × nitrogen contribution rate × phosphorus contribution rate of each land use form. The top one (two) will point to the corresponding a technology, the middle two will point to the corresponding b technology, and the bottom two will point to c technology; all those without b or c technology will point to a technology; at this time, according to the governance objectives, you can choose or abandon the 3.2 technology package;

[0072] 3. When the land area accounts for ≤20% of the total area and the water area is ≥80%, the 3.3 technology package is selected. Within the technology package, the land use forms are ranked according to the area ratio × nitrogen contribution rate × phosphorus contribution rate. The top one (two) will point to the corresponding a technology, the middle two will point to the corresponding b technology, and the bottom two will point to c technology; all those without b or c technology will point to a technology; at this time, according to the governance objectives, the 3.1 technology package can be selected or abandoned;

[0073] Investigate the land use forms and area proportions of the target dikes, find out the contribution rates of nitrogen and phosphorus pollution of each of the two land use forms, calculate the value of area ratio × nitrogen contribution rate × phosphorus contribution rate, and the system automatically matches the corresponding treatment plan; by setting up a monitoring system to monitor the water quality dynamics, adjust the treatment plan according to changes in water quality parameters, and formulate a personalized and precise treatment plan for each dike.

[0074] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0075] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for intelligently generating a eutrophic water treatment plan for a polder, characterized in that: The following steps are involved: Obtain the land use patterns and nitrogen and phosphorus pollution load data of the dikes; Build a technology library based on nutrient reduction technologies for different land use forms; According to the nitrogen and phosphorus pollution load data, various technologies in the technology library are graded and an automatic classification system is built; Calculate the weighted proportion of different land use forms' contribution to eutrophication of dike water bodies, and divide the dike eutrophication to be restored into different levels according to the weight value; Match the eutrophication level of the dike to be repaired with the automatic grading system, automatically assign the technology of the corresponding level, and output the technical plan for the treatment of the dike eutrophic water body; By setting up a monitoring system to monitor water quality dynamics, the technical plan for the management of eutrophic water bodies in dikes is adjusted according to the management objectives and water quality dynamics, and personalized management plans are formulated for each dike.

2. The method for intelligently generating a eutrophic water treatment plan for a polder according to claim 1, characterized in that: Land use forms include: residential areas, artificial forests, natural forests, dry fields, paddy fields, vegetable greenhouses, abandoned farmland, wetlands, ditches, ponds, and lakes.

3. The method for intelligently generating a eutrophic water treatment plan for a polder according to claim 1, characterized in that: Based on the nutrient reduction technologies of different land use forms, the specific contents of the technology library are as follows: For each land use form, several cutting-edge nitrogen and phosphorus nutrient reduction technologies are collected, and the technical parameters of each technology are linked to the name of the land use form; each technology is prefixed according to the value obtained by reducing capacity × cost-effectiveness, so as to build all the collected technologies into a technology library.

4. The method for intelligently generating a eutrophic water treatment plan for a polder according to claim 3, characterized in that: Cost performance refers to the cost reduction of the same equivalent of nitrogen and phosphorus, expressed in ￥ / g·m 2 .

5. The method for intelligently generating a eutrophic water treatment plan for a polder according to claim 1, characterized in that: The weighted weights of the proportion of different land use forms contributing to the eutrophication of the dike water body are calculated, and the specific contents of dividing the eutrophication of the dike to be restored into different levels according to the weight values ​​are as follows: Calculate the proportional weighted weight of all land use forms contributing to eutrophication in each embankment: Among them, Wi is the weight value of the i-th polder, An% is the area ratio of the n-th land use form in the i-th polder, ΔNn and ΔPn are the N and P load change values ​​of the n-th land use form in the i-th polder, and n is the number of land use types in the i-th polder; The calculation formula of ΔNn is: The calculation formula of ΔPn is: Among them, after obtaining n weight values ​​W, the numerical range of W1-Wn is divided into three types: the weight values ​​distributed in the first 30% are severe eutrophication levels; the weight values ​​distributed in the first 30%-70% are moderate eutrophication levels; the weight values ​​distributed in the last 30% are general eutrophication levels.

6. The method for intelligently generating a eutrophic water treatment plan for a polder according to claim 1, characterized in that: The eutrophication level of the embankment to be repaired is matched with the automatic grading system, and the corresponding level of technology is automatically assigned. The specific content of the technical solution for the treatment of eutrophic water bodies in the embankment is output as follows: Conduct surveys on the dikes to be restored to obtain data on land use patterns and nitrogen and phosphorus pollution loads; Calculate the eutrophication weight of the dike to be restored; According to the weight value, the corresponding eutrophication level of the dike is selected in the automatic classification system; The automatic grading system will automatically match the governance technology solution.

7. The method for intelligently generating a eutrophic water treatment plan for a polder according to claim 1, characterized in that: By setting up a monitoring system to monitor water quality dynamics, the technical plan for eutrophic water body management in the dike is adjusted according to the management objectives and water quality dynamics, and a personalized management plan for each dike is formulated. The specific contents are as follows: Communicate with users and set governance goals; According to the technical solution automatically matched by the automatic grading system, the eutrophic water bodies to be repaired are treated; Set up a monitoring system to monitor water quality dynamics, adjust the treatment technology plan in combination with the treatment objectives, and once the water quality stabilizes, form a personalized treatment plan for each embankment.

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