Heavy metal pollution site remediation method, device, equipment and medium
By dynamically calculating the remediation stage weights and carbon data scores, the remediation strategy for heavy metal contaminated sites is adjusted in real time, which solves the problem of excessive carbon emissions and improves the reliability of low-carbon remediation of heavy metal contaminated sites.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
- Filing Date
- 2025-12-16
- Publication Date
- 2026-04-21
AI Technical Summary
Existing remediation technologies for heavy metal contaminated sites fail to effectively manage carbon emissions during the remediation process, resulting in other environmental problems even when pollutant concentrations meet standards, and a lack of dynamically adjusted low-carbon remediation strategies.
By acquiring historical pollutant concentrations, current pollutant concentrations, and carbon data of the site, the weights of the remediation stages are dynamically calculated. Combined with the carbon data score, the remediation strategy is adjusted in real time to reduce carbon emissions.
It achieves low-carbon remediation reliability for heavy metal contaminated sites, dynamically adjusts remediation strategies to reduce carbon emissions, and improves the greenness and reliability of the remediation process.
Smart Images
Figure CN121892489A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of site remediation, and more particularly to a method, apparatus, equipment, and medium for remediating heavy metal contaminated sites. Background Technology
[0002] With the continuous advancement of urbanization, the relocation of numerous industrial enterprises has left behind many sites contaminated with heavy metals, posing a serious threat to the ecological environment and human health. Against this backdrop, promoting the green and low-carbon remediation of contaminated sites has become an industry consensus, and the need for relevant evaluation methods is increasingly urgent.
[0003] Currently, the remediation of heavy metal contaminated sites largely focuses on whether the pollutant concentration meets standards after remediation. Therefore, the remediation strategy for heavy metal contaminated sites is often fixed and unchanging. If the pollutant concentration still doesn't meet standards after the predetermined remediation period, the investment in remediation equipment is simply increased without considering the excessive carbon emissions caused by the operation and quantity of such equipment during the remediation process. This leads to other environmental problems arising even if the contaminated site is remediated. Summary of the Invention
[0004] This invention provides a method, apparatus, equipment, and medium for the remediation of heavy metal contaminated sites, which can solve the above-mentioned problems and improve the reliability of low-carbon remediation of heavy metal contaminated sites.
[0005] This invention provides a method for remediating heavy metal contaminated sites, comprising: Acquire historical pollutant concentrations, current pollutant concentrations, site remediation carbon data, and current remediation time for the site to be remediated; The site remediation stage is determined based on the historical pollutant concentration and the preset pollutant threshold, and the site remediation stage weight coefficient is determined based on the site remediation stage. Based on the current site contaminant concentration and the site remediation stage, the current remediation stage is determined; The site repair stage weight is obtained based on the current repair time, the current repair stage, and the site repair stage weight coefficient. Based on the site remediation stage weights and the site remediation carbon data, a site remediation score is obtained. A target remediation strategy is determined based on the site remediation score, and the site to be remediated is then remediated based on the target remediation strategy.
[0006] In the aforementioned scheme, site remediation carbon data is used as the core evaluation criterion and combined with dynamically calculated site remediation stage weights to obtain a site remediation score. This allows for timely identification of excessive carbon emission risks caused by the operation and quantity of remediation equipment. Furthermore, instead of focusing solely on the final result, the scheme uses the current remediation time, the current remediation stage, and the site remediation stage weight coefficients to dynamically reflect the changing importance of different stages to the overall green and low-carbon performance. This allows for real-time, dynamic determination of target remediation strategies based on the site remediation score during the remediation process. In summary, by incorporating carbon data as a consideration in the remediation of polluted sites and dynamically adjusting target remediation strategies, the reliability of low-carbon remediation of heavy metal contaminated sites is improved.
[0007] Furthermore, the site remediation carbon data includes the site soil carbon storage, and the acquisition of historical pollutant concentrations, current site pollutant concentrations, site remediation carbon data, and current remediation time of the site to be remediated includes: Obtain the soil SOC content, soil bulk density, soil depth, gravel particle size, soil volume, and soil organic carbon content of the site to be remediated; Based on the gravel particle size, the target gravel is obtained, and the ratio of the target gravel volume to the soil volume is obtained to obtain the gravel proportion value. Obtain the complementary value of the gravel percentage as the gravel complement ratio; The product of the soil SOC content, soil bulk density, soil depth, gravel complementarity ratio, and soil organic carbon content is obtained as the soil carbon storage of the site.
[0008] The above scheme introduces specific parameters such as soil SOC content, soil bulk density, soil depth, gravel particle size, soil volume, and soil organic carbon content. It then uses the gravel ratio and gravel complementarity ratio to precisely correct the soil volume, ultimately obtaining the site's soil carbon storage through multiplication. This technical solution transforms the abstract concept of green and low-carbon into a precisely measurable indicator.
[0009] Further, the step of determining the site remediation stage based on the historical process pollutant concentration and a preset pollutant threshold, and determining the site remediation stage weighting coefficient based on the site remediation stage, includes: Obtain the historical repair start time node of the site to be repaired, and use it as the initial time node of the first stage; The time point at which the historical pollutant concentration equals the preset initial remediation value is obtained is used as the end point of the first stage time. Based on the initial node of the first stage time and the end node of the first stage time, the first repair stage is obtained; The time point at which the pollutant concentration in the historical process equals the preset remediation standard value is obtained is used as the end point of the second stage. Based on the end time nodes of the first stage and the second stage, the second repair stage is obtained; Based on the end time node of the second stage and the preset repair end time node, the third repair stage is obtained; The site repair stage is obtained based on the first repair stage, the second repair stage, and the second repair stage.
[0010] The above scheme defines the start and end times of the first, second, and third remediation stages by precisely comparing historical pollutant concentrations with preset initial and standard remediation values. This provides an objective and quantitative standard for accurately dividing the different periods of the remediation process.
[0011] Further, the step of determining the site remediation stage based on the historical process pollutant concentration and a preset pollutant threshold, and determining the site remediation stage weighting coefficient based on the site remediation stage, includes: Obtain the first phase time of the first repair phase, the second phase time of the second repair phase, and the third phase time of the third repair phase; The values of the first-stage weight coefficients are updated based on the preset stage weight coefficient values. The first repair sum value is obtained by adding the multiples of the second stage time based on the first stage time. The ratio of the first repair time to the sum of the first repair times is obtained and used as the weighting coefficient for the second stage. The first stage time, the second stage time, and the third stage time are added together to obtain the second repair sum value; Based on the third stage time, the ratio of the second repair sum value is obtained by performing a ratio calculation to obtain the third stage weight coefficient; The weighting coefficients for the site remediation stage are obtained based on the weighting coefficients of the first stage, the second stage, and the third stage.
[0012] In the above scheme, the weight coefficients for the first, second, and third stages are calculated based on the timeframes of the first, second, and third stages. This ensures that the determination of the weight coefficients for each stage of site remediation is no longer subjectively arbitrary, but is automatically linked to the actual duration of each stage. This more accurately reflects the time proportion and potential impact of different remediation stages in the overall picture, thereby guaranteeing the rationality and dynamic adaptability of subsequent weight allocation.
[0013] Further, the step of obtaining the site repair stage weight based on the current repair time, the current repair stage, and the site repair stage weight coefficient includes: When the current repair stage is the first repair stage, the weight of the site repair stage is the weight coefficient of the first stage; When the current repair stage is the second repair stage, the site repair stage weight is obtained based on the current repair time, the first stage time, the second stage time, and the second stage weight coefficient. When the current repair stage is the third repair stage, the site repair stage weight is obtained based on the current repair time, the first stage time, the second stage time, the third stage time, the second stage weight coefficient, and the third stage weight coefficient.
[0014] In the above scheme, by determining the current repair stage and employing different calculation paths based on the current repair time and the weight coefficients of each stage, the system ensures that regardless of whether it is the first, second, or third repair stage, it can generate a weight value that precisely matches the current repair progress. This improves the timeliness and accuracy of the evaluation.
[0015] Further, when the current repair stage is the second repair stage, the site repair stage weight is obtained based on the current repair time, the first stage time, the second stage time, and the second stage weight coefficient, including: Obtain the difference between the current repair time and the first stage time, and use it as the first time difference; Obtain the ratio of the first time difference to the second stage time as the first time ratio; The product of the first time ratio and the second stage weight coefficient is obtained and used as the final weight of the second repair stage; Obtain the complementary value of the weight at the end of the second repair stage to get the initial weight of the second repair stage; The site restoration stage weights are obtained based on the initial weights of the second restoration stage and the final weights of the second restoration stage.
[0016] The above scheme specifies the method for calculating the weight of the site restoration stage when the current restoration stage is the third restoration stage. This provides a data foundation for subsequent calculations of the site restoration score.
[0017] Further, when the current repair stage is the third repair stage, the site repair stage weight is obtained based on the current repair time, the first stage time, the second stage time, the third stage time, the second stage weight coefficient, and the third stage weight coefficient, including: Obtain the sum of the first stage time and the second stage time, and use it as the sum of the first time values; The difference between the current repair time and the sum of the first time is obtained as the second time difference; Obtain the ratio of the second time difference to the third stage time as the second time ratio; The product of the second time ratio and the third stage weight coefficient is obtained as the final weight of the third repair stage; Obtain the complementary value of the weight at the end of the third repair stage as the time complementary value; The product of the time complement value and the weight coefficient of the second stage is obtained and used as the intermediate weight of the third repair stage; The sum of the intermediate weights and the final weights of the third repair phase is obtained and used as the sum of the second time values. Obtain the complementary value of the second time summation value to get the initial weight of the third repair stage; The site restoration stage weights are obtained based on the initial weights of the third restoration stage, the intermediate weights of the third restoration stage, and the final weights of the third restoration stage.
[0018] The above scheme specifically specifies the method for calculating the weight of the site restoration stage when the current restoration stage is the third restoration stage. This provides a data foundation for subsequent calculations of the site restoration score.
[0019] Another embodiment of the present invention also provides a heavy metal contaminated site remediation device, comprising: The acquisition module is used to acquire historical pollutant concentrations, current pollutant concentrations, site remediation carbon data, and current remediation time of the site to be remediated. The coefficient module is used to determine the site remediation stage based on the historical process pollutant concentration and the preset pollutant threshold, and to determine the site remediation stage weight coefficient based on the site remediation stage. The current remediation phase module is used to determine the current remediation phase based on the current site contaminant concentration and the site remediation phase. The weighting module is used to obtain the weight of the site repair stage based on the current repair time, the current repair stage, and the site repair stage weight coefficient. The scoring module is used to obtain a site remediation score based on the site remediation stage weights and the site remediation carbon data. The repair module is used to determine a target repair strategy based on the site repair score, and to repair the site to be repaired based on the target repair strategy.
[0020] Another embodiment of the present invention provides a terminal device, including: a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, it implements the steps of the heavy metal contaminated site remediation method of the present invention.
[0021] Another embodiment of the present invention also provides a computer-readable storage medium item, including: a stored computer program, which, when the computer program is running, controls the device where the computer-readable storage medium is located to perform the steps of a heavy metal contaminated site remediation method of the present invention. Attached Figure Description
[0022] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a schematic flowchart of a method for remediating heavy metal contaminated sites according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a heavy metal contaminated site remediation system provided in an embodiment of the present invention. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0026] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.
[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0028] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0029] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).
[0030] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0031] See Figure 1 To address the aforementioned problems and improve the reliability of low-carbon remediation of heavy metal contaminated sites, an embodiment of the present invention provides a method for remediating heavy metal contaminated sites, comprising: Step S1: Obtain historical pollutant concentrations, current pollutant concentrations, site remediation carbon data, and current remediation time for the site to be remediated; Step S2: Determine the site remediation stage based on historical pollutant concentrations and preset pollutant thresholds, and determine the weighting coefficient of the site remediation stage based on the site remediation stage. Step S3: Determine the current remediation stage based on the current site contaminant concentration and the site remediation stage; Step S4: Based on the current repair time, the current repair stage, and the site repair stage weight coefficient, obtain the site repair stage weight; Step S5: Based on the site remediation stage weights and site remediation carbon data, obtain the site remediation score; Step S6: Determine the target remediation strategy based on the site remediation score, and remediate the site to be remediated based on the target remediation strategy.
[0032] In the aforementioned scheme, site remediation carbon data is used as the core evaluation criterion and combined with dynamically calculated site remediation stage weights to obtain a site remediation score. This allows for timely identification of excessive carbon emission risks caused by the operation and quantity of remediation equipment. Furthermore, instead of focusing solely on the final result, the scheme uses the current remediation time, the current remediation stage, and the site remediation stage weight coefficients to dynamically reflect the changing importance of different stages to the overall green and low-carbon performance. This allows for real-time, dynamic determination of target remediation strategies based on the site remediation score during the remediation process. In summary, by incorporating carbon data as a consideration in the remediation of polluted sites and dynamically adjusting target remediation strategies, the reliability of low-carbon remediation of heavy metal contaminated sites is improved.
[0033] In another embodiment, the site remediation carbon data includes site soil carbon storage, and the acquisition of historical process pollutant concentrations, current site pollutant concentrations, site remediation carbon data, and current remediation time of the site to be remediated includes: Obtain the soil SOC content, soil bulk density, soil depth, gravel particle size, soil volume, and soil organic carbon content of the site to be remediated; Based on the gravel particle size, the target gravel is obtained, and the ratio of the target gravel volume to the soil volume is obtained to obtain the gravel proportion value. Obtain the complementary value of the gravel percentage as the gravel complement ratio; The product of the soil SOC content, soil bulk density, soil depth, gravel complementarity ratio, and soil organic carbon content is obtained as the soil carbon storage of the site.
[0034] It should be noted that site remediation carbon data includes site carbon emissions and site soil carbon storage. Site carbon emissions (E) are typically calculated using the following formula: ; Where E represents the site's carbon emissions, expressed in carbon dioxide equivalent (CO2e); The activity data representing behavior i refers to the amount of activity that generates emissions. The emission factor representing behavior i refers to the emission amount per unit of activity data. For example, repair equipment A and B are different categories of repair equipment. Assume repair equipment A consumes 1000 liters of diesel fuel (i.e., AD). 柴油 Repair equipment B (AD) 电力 It consumed 5000 kWh of grid electricity. The diesel emission factor EF柴油 =2.7 kg CO2e / L. Emission factor EF of grid electricity. 电力 =0.6kgCO2e / kWh. Therefore, E is = (AD) 柴油 ×EF 柴油 )+(AD 电力 ×EF 电力 It is understandable that "repair equipment" refers to the equipment involved in the entire repair process. Therefore, repair equipment A could be an excavator, and repair equipment B could be a lighting system.
[0035] Site soil carbon storage is the storage of organic carbon and its components per unit area and at a certain depth of the site (SCOD, kg C / m³). 2 The SCOD calculation method is shown in the following formula: ; This indicates the SOC content (g / kg) of the i-th soil layer. This represents the bulk density of the i-th soil layer (g / cm3). The soil depth (cm) of the i-th soil layer is determined. Gravel with a particle size greater than a preset value (preferably 2.0 mm) is used as the target gravel in the i-th soil layer. The percentage (%) of the target gravel in the i-th soil layer is then calculated to obtain the gravel percentage value. , Let be the soil organic carbon content (g / kg) of the i-th soil layer, where, ) represents the gravel complement ratio.
[0036] Furthermore, site remediation carbon data can also include indicators used to assess the remediation status, such as the degree of damage to ecosystem services (K), which can be calculated using the following formula: ; K represents the degree of damage to ecosystem service functions; The current status of indicator j of ecosystem service function; The baseline level of indicator j for ecosystem service functions, where n is the number of all important ecosystem service function indicators and is a preset value.
[0037] In another embodiment, determining the site remediation stage based on the historical process pollutant concentration and a preset pollutant threshold, and determining the site remediation stage weighting coefficient based on the site remediation stage, includes: Obtain the historical repair start time node of the site to be repaired, and use it as the initial time node of the first stage; The time point at which the historical pollutant concentration equals the preset initial remediation value is obtained is used as the end point of the first stage time. Based on the initial node of the first stage time and the end node of the first stage time, the first repair stage is obtained; The time point at which the pollutant concentration in the historical process equals the preset remediation standard value is obtained is used as the end point of the second stage. Based on the end time nodes of the first stage and the second stage, the second repair stage is obtained; Based on the end time node of the second stage and the preset repair end time node, the third repair stage is obtained; The site repair stage is obtained based on the first repair stage, the second repair stage, and the second repair stage.
[0038] It should be noted that while the historical pollutant concentrations of the site to be remediated are used to define the remediation stages, in practice, historical pollutant concentrations of sites of the same type as the site to be remediated can also be used. The first remediation stage refers to the time from the start of historical remediation until the site's pollutant concentration first falls below the preset initial remediation value, indicating that the remediation equipment has begun operation. The second remediation stage refers to the time from the first time the historical pollutant concentration falls below the preset initial remediation value until the preset remediation standard value is reached. The preset remediation standard value refers to the pollutant concentration reaching the remediation standard (e.g., cadmium 20 mg / kg, lead 400 mg / kg (screening value for Class I construction land)). The third remediation stage refers to the time from when the historical pollutant concentration reaches the preset remediation standard value until the preset remediation end time. Therefore, to ensure remediation, even if the historical pollutant concentration reaches the preset remediation standard value, remediation may continue for a period of time.
[0039] In another embodiment, determining the site remediation stage based on the historical process pollutant concentration and a preset pollutant threshold, and determining the site remediation stage weighting coefficient based on the site remediation stage, includes: Obtain the first phase time of the first repair phase, the second phase time of the second repair phase, and the third phase time of the third repair phase; The values of the first-stage weight coefficients are updated based on the preset stage weight coefficient values. The first repair sum value is obtained by adding the multiples of the second stage time based on the first stage time. The ratio of the first repair time to the sum of the first repair times is obtained and used as the weighting coefficient for the second stage. The first stage time, the second stage time, and the third stage time are added together to obtain the second repair sum value; Based on the third stage time, the ratio of the second repair sum value is obtained by performing a ratio calculation to obtain the third stage weight coefficient; The weighting coefficients for the site remediation stage are obtained based on the weighting coefficients of the first stage, the second stage, and the third stage.
[0040] It should be noted that the first-stage weighting coefficient of the first repair stage... The value is set to the preset stage weight coefficient value, which is 1. The second stage weight coefficient of the second repair stage. for: ; in, This indicates the timeframe of the first stage of the first repair phase. This indicates the second phase of the second repair phase.
[0041] The third stage of the third repair phase has a weighting coefficient. The numerical calculation formula is shown below: ; in, This indicates the timeframe for the third stage of the third repair phase.
[0042] In another embodiment, obtaining the site repair stage weight based on the current repair time, the current repair stage, and the site repair stage weight coefficient includes: When the current repair stage is the first repair stage, the weight of the site repair stage is the weight coefficient of the first stage; When the current repair stage is the second repair stage, the site repair stage weight is obtained based on the current repair time, the first stage time, the second stage time, and the second stage weight coefficient. When the current repair stage is the third repair stage, the site repair stage weight is obtained based on the current repair time, the first stage time, the second stage time, the third stage time, the second stage weight coefficient, and the third stage weight coefficient.
[0043] It should be noted that when the current repair stage is the first repair stage, the weight of the site repair stage is the weight coefficient of the first stage: ,in, This refers to the weight of the site repair stage when the current repair stage is the first repair stage. This represents the weighting coefficient for the first stage.
[0044] In another embodiment, when the current repair stage is the second repair stage, the site repair stage weight is obtained based on the current repair time, the first stage time, the second stage time, and the second stage weight coefficient, including: Obtain the difference between the current repair time and the first stage time, and use it as the first time difference; Obtain the ratio of the first time difference to the second stage time as the first time ratio; The product of the first time ratio and the second stage weight coefficient is obtained and used as the final weight of the second repair stage; Obtain the complementary value of the weight at the end of the second repair stage to get the initial weight of the second repair stage; The site restoration stage weights are obtained based on the initial weights of the second restoration stage and the final weights of the second restoration stage.
[0045] It should be noted that when the current repair stage is the second repair stage, the site repair stage weight includes the initial weight of the second repair stage. and the weight at the end of the second repair phase , ; Where t is the current repair time, This indicates the timeframe of the first stage of the first repair phase. This indicates the second phase of the second repair phase. This indicates the time of the third stage of the third repair phase. The first time difference is 0. This is the ratio at the first time. Because the pollutant concentration gradually decreases during the remediation process, when the current remediation stage is the second remediation stage, it means that the first remediation stage has also been completed. Therefore, it is necessary to calculate two weights: the initial weight of the second remediation stage. and the weight at the end of the second repair phase , where here The weight of the first repair stage is used to characterize the results after the first and second repair stages. The weights of the second repair stage are used to characterize the results after the first and second repair stages.
[0046] In another embodiment, when the current repair stage is the third repair stage, the site repair stage weight is obtained based on the current repair time, the first stage time, the second stage time, the third stage time, the second stage weight coefficient, and the third stage weight coefficient, including: Obtain the sum of the first stage time and the second stage time, and use it as the sum of the first time values; The difference between the current repair time and the sum of the first time is obtained as the second time difference; Obtain the ratio of the second time difference to the third stage time as the second time ratio; The product of the second time ratio and the third stage weight coefficient is obtained as the final weight of the third repair stage; Obtain the complementary value of the weight at the end of the third repair stage as the time complementary value; The product of the time complement value and the weight coefficient of the second stage is obtained and used as the intermediate weight of the third repair stage; The sum of the intermediate weights and the final weights of the third repair phase is obtained and used as the sum of the second time values. Obtain the complementary value of the second time summation value to get the initial weight of the third repair stage; The site restoration stage weights are obtained based on the initial weights of the third restoration stage, the intermediate weights of the third restoration stage, and the final weights of the third restoration stage.
[0047] It should be noted that when the current repair stage is the third repair stage, the site repair stage weight includes the initial weight of the third repair stage. Intermediate weights in the third repair stage and the end of the third repair phase , ; ; Where t is the current repair time, This indicates the timeframe of the first stage of the first repair phase. This indicates the second phase of the second repair phase. This indicates the time of the third stage of the third repair phase. The values are added together immediately. )= This is the second time difference. This is the second time ratio. These are time complementary values. This is the sum of the values at the second time interval. = The complementary value of the sum of the second time steps is equivalent to the initial weight of the third remediation stage. Because the pollutant concentration gradually decreases during the remediation process, when the current remediation stage is the third remediation stage, it means that the first and second remediation stages have already been completed. Therefore, three weights need to be calculated: the initial weight of the third remediation stage. Intermediate weights in the third repair stage and the end of the third repair phase , where here The weights of the first repair stage are used to characterize the results of the first, second, and third repair stages. The weights used to characterize the second repair stage in cases involving the first, second, and third repair stages. The weights used to characterize the third repair stage after the first, second, and third repair stages.
[0048] Further, for step S5: based on the site remediation stage weights and the site remediation carbon data, a site remediation score is obtained, specifically: First, the site remediation carbon data is normalized and normalized. Then, the standard deviation of the site remediation carbon data is calculated. ) and the conflict between site remediation carbon data ( The calculation method is shown in the following formula: ; ; in, This represents the standard deviation of the carbon data for the remediation of the j-th site. Data values representing carbon data for site remediation. This represents the average value of carbon data for site remediation. This represents the correlation coefficient between site remediation carbon data i and site remediation carbon data j. This indicates the conflict between site remediation carbon data, where p is the number of site remediation carbon data.
[0049] Further calculation of site remediation carbon data weights ( See the following formula: ; ; in, This is the median value.
[0050] Based on the above calculations, the stage score is obtained ( ), The calculation method is shown in the following formula: ; Then, the site restoration score is calculated by combining the weights of the site restoration stages. ), The calculation method is shown in the following formula: .
[0051] Furthermore, regarding step S6: determining a target remediation strategy based on the site remediation score, and remediating the site to be remediated based on the target remediation strategy, specifically: Adjustments will be made to subsequent remediation work based on the site remediation score. For example, if the site remediation score is lower than the preset threshold, the proportion of renewable and clean energy consumption will be increased, key energy-consuming processes and equipment will be optimized and upgraded, and green and low-carbon remediation materials will be given priority.
[0052] like Figure 2 As shown, based on the above method embodiments, corresponding apparatus embodiments are provided; An embodiment of the present invention provides a remediation device for heavy metal contaminated sites, comprising: The acquisition module is used to acquire historical pollutant concentrations, current pollutant concentrations, site remediation carbon data, and current remediation time of the site to be remediated. The coefficient module is used to determine the site remediation stage based on the historical process pollutant concentration and the preset pollutant threshold, and to determine the site remediation stage weight coefficient based on the site remediation stage. The current remediation phase module is used to determine the current remediation phase based on the current site contaminant concentration and the site remediation phase. The weighting module is used to obtain the weight of the site repair stage based on the current repair time, the current repair stage, and the site repair stage weight coefficient. The scoring module is used to obtain a site remediation score based on the site remediation stage weights and the site remediation carbon data. The repair module is used to determine a target repair strategy based on the site repair score, and to repair the site to be repaired based on the target repair strategy.
[0053] It is understood that the above-described device embodiments correspond to the method embodiments of the present invention, and can realize the method for remediating heavy metal contaminated sites provided by any of the above-described method embodiments of the present invention.
[0054] It should be noted that the device embodiments described above are merely illustrative, and some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Furthermore, in the accompanying drawings of the device embodiments provided by this invention, the connection relationships between modules indicate that they have communication connections, which can specifically be implemented as one or more communication buses or signal lines. Those skilled in the art can understand and implement this without any creative effort.
[0055] Based on the above-described embodiment of a method for remediating heavy metal contaminated sites, another embodiment of the present invention provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements a method for remediating heavy metal contaminated sites according to any embodiment of the present invention.
[0056] For example, in this embodiment, the computer program can be divided into one or more modules, which are stored in the memory and executed by the processor to complete the present invention. The one or more modules may be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program in the terminal device.
[0057] The terminal device may be a desktop computer, laptop, handheld computer, or cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.
[0058] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor. The processor is the control center of the terminal device, connecting all parts of the terminal device via various interfaces and lines.
[0059] Based on the above-described method embodiments, another embodiment of the present invention provides a computer-readable storage medium including a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to execute a heavy metal contaminated site remediation method according to any of the above-described method embodiments of the present invention.
[0060] The modules / units integrated in the device / terminal equipment, if implemented as software functional units and sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc.
[0061] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.
Claims
1. A method for remediating heavy metal contaminated sites, characterized in that, include: Acquire historical pollutant concentrations, current pollutant concentrations, site remediation carbon data, and current remediation time for the site to be remediated; The site remediation stage is determined based on the historical pollutant concentration and the preset pollutant threshold, and the site remediation stage weight coefficient is determined based on the site remediation stage. Based on the current site contaminant concentration and the site remediation stage, the current remediation stage is determined; The site repair stage weight is obtained based on the current repair time, the current repair stage, and the site repair stage weight coefficient. Based on the site remediation stage weights and the site remediation carbon data, a site remediation score is obtained. A target remediation strategy is determined based on the site remediation score, and the site to be remediated is then remediated based on the target remediation strategy.
2. The method for remediating a heavy metal contaminated site according to claim 1, characterized in that, The site remediation carbon data includes the site soil carbon storage. The acquisition of historical pollutant concentrations, current site pollutant concentrations, site remediation carbon data, and the current remediation time for the site to be remediated includes: Obtain the soil SOC content, soil bulk density, soil depth, gravel particle size, soil volume, and soil organic carbon content of the site to be remediated; Based on the gravel particle size, the target gravel is obtained, and the ratio of the target gravel volume to the soil volume is obtained to obtain the gravel proportion value. Obtain the complementary value of the gravel percentage as the gravel complement ratio; The product of the soil SOC content, soil bulk density, soil depth, gravel complementarity ratio, and soil organic carbon content is obtained as the soil carbon storage of the site.
3. The method for remediating a heavy metal contaminated site according to claim 1, characterized in that, The process of determining the site remediation stage based on the historical pollutant concentration and a preset pollutant threshold, and determining the site remediation stage weighting coefficient based on the site remediation stage, includes: Obtain the historical repair start time node of the site to be repaired, and use it as the initial time node of the first stage; The time point at which the historical pollutant concentration equals the preset initial remediation value is obtained is used as the end point of the first stage time. Based on the initial node of the first stage time and the end node of the first stage time, the first repair stage is obtained; The time point at which the pollutant concentration in the historical process equals the preset remediation standard value is obtained is used as the end point of the second stage. Based on the end time nodes of the first stage and the second stage, the second repair stage is obtained; Based on the end time node of the second stage and the preset repair end time node, the third repair stage is obtained; The site repair stage is obtained based on the first repair stage, the second repair stage, and the second repair stage.
4. The method for remediating a heavy metal contaminated site according to claim 3, characterized in that, The process of determining the site remediation stage based on the historical pollutant concentration and a preset pollutant threshold, and determining the site remediation stage weighting coefficient based on the site remediation stage, includes: Obtain the first phase time of the first repair phase, the second phase time of the second repair phase, and the third phase time of the third repair phase; The values of the first-stage weight coefficients are updated based on the preset stage weight coefficient values. The first repair sum value is obtained by adding the multiples of the second stage time based on the first stage time. The ratio of the first repair time to the sum of the first repair times is obtained and used as the weighting coefficient for the second stage. The first stage time, the second stage time, and the third stage time are added together to obtain the second repair sum value; Based on the third stage time, the ratio of the second repair sum value is obtained by performing a ratio calculation to obtain the third stage weight coefficient; The weighting coefficients for the site remediation stage are obtained based on the weighting coefficients of the first stage, the second stage, and the third stage.
5. A method for remediating a heavy metal contaminated site according to claim 4, characterized in that, The process of obtaining the site repair stage weight based on the current repair time, the current repair stage, and the site repair stage weight coefficient includes: When the current repair stage is the first repair stage, the weight of the site repair stage is the weight coefficient of the first stage; When the current repair stage is the second repair stage, the site repair stage weight is obtained based on the current repair time, the first stage time, the second stage time, and the second stage weight coefficient. When the current repair stage is the third repair stage, the site repair stage weight is obtained based on the current repair time, the first stage time, the second stage time, the third stage time, the second stage weight coefficient, and the third stage weight coefficient.
6. A method for remediating a heavy metal contaminated site according to claim 5, characterized in that, When the current repair stage is the second repair stage, the site repair stage weight is obtained based on the current repair time, the first stage time, the second stage time, and the second stage weight coefficient, including: Obtain the difference between the current repair time and the first stage time, and use it as the first time difference; Obtain the ratio of the first time difference to the second stage time as the first time ratio; The product of the first time ratio and the second stage weight coefficient is obtained and used as the final weight of the second repair stage; Obtain the complementary value of the weight at the end of the second repair stage to get the initial weight of the second repair stage; The site restoration stage weights are obtained based on the initial weights of the second restoration stage and the final weights of the second restoration stage.
7. A method for remediating a heavy metal contaminated site according to claim 5, characterized in that, When the current repair stage is the third repair stage, the site repair stage weight is obtained based on the current repair time, the first stage time, the second stage time, the third stage time, the second stage weight coefficient, and the third stage weight coefficient, including: Obtain the sum of the first stage time and the second stage time, and use it as the sum of the first time values; The difference between the current repair time and the sum of the first time is obtained as the second time difference; Obtain the ratio of the second time difference to the third stage time as the second time ratio; The product of the second time ratio and the third stage weight coefficient is obtained as the final weight of the third repair stage; Obtain the complementary value of the weight at the end of the third repair stage as the time complementary value; The product of the time complement value and the weight coefficient of the second stage is obtained and used as the intermediate weight of the third repair stage; The sum of the intermediate weights and the final weights of the third repair phase is obtained and used as the sum of the second time values. Obtain the complementary value of the second time summation value to get the initial weight of the third repair stage; The site restoration stage weights are obtained based on the initial weights of the third restoration stage, the intermediate weights of the third restoration stage, and the final weights of the third restoration stage.
8. A device for remediating heavy metal contaminated sites, characterized in that, include: The acquisition module is used to acquire historical pollutant concentrations, current pollutant concentrations, site remediation carbon data, and current remediation time of the site to be remediated. The coefficient module is used to determine the site remediation stage based on the historical process pollutant concentration and the preset pollutant threshold, and to determine the site remediation stage weight coefficient based on the site remediation stage. The current remediation phase module is used to determine the current remediation phase based on the current site contaminant concentration and the site remediation phase. The weighting module is used to obtain the weight of the site repair stage based on the current repair time, the current repair stage, and the site repair stage weight coefficient. The scoring module is used to obtain a site remediation score based on the site remediation stage weights and the site remediation carbon data. The repair module is used to determine a target repair strategy based on the site repair score, and to repair the site to be repaired based on the target repair strategy.
9. A terminal device, characterized in that, The device includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, it implements a method for remediating a heavy metal contaminated site as described in any one of claims 1-7.
10. A computer-readable storage medium, characterized in that, include: A stored computer program, wherein, when the computer program is executed, it controls the device containing the computer-readable storage medium to perform a method for remediating a heavy metal contaminated site as described in any one of claims 1-7.