Method for identifying heterochromatic substances in polluted soil

Abstract

The invention relates to a method for identifying heterochromatic substances in polluted soil, and belongs to the technical field of environmental protection, and the method comprises the following steps: S1, preliminary investigation of a land parcel: carrying out field observation and preliminary evaluation on a surrounding environment which may cause pollution, and knowing the type and scale of a possible pollution source and the degree of influence on the surrounding environment; s2, determining sampling points: determining points where soil samples need to be collected according to the preliminary survey result, and selecting the points to cover different pollution degrees and possible pollution sources. According to the method for identifying the heterochromatic substances in the polluted soil, powerful support and reference can be provided for subsequent soil remediation and treatment work by identifying the heterochromatic substances in the polluted soil, a scientific and reasonable treatment scheme can be formulated, the treatment cost is reduced, the treatment efficiency is improved, and pollution diffusion and aggravation are avoided; a decision maker is helped to formulate more reasonable and effective environmental policies and management measures, and powerful support can be provided for environmental protection work.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental protection, and particularly to a method for identifying abnormal-colored substances in polluted soil. Background Art

[0002] Polluted soil is mainly caused by human activities or other natural factors, resulting in a decline in soil quality, structural changes, or impaired functions. Polluted soil can be classified according to its pollutant types, sources, and properties.

[0003] The abnormal-colored substances in polluted soil are usually closely related to the types and degrees of soil pollution. The abnormal-colored substances in polluted soil are usually manifestations of strong soil acidity or salinization; in acidic soil, hydrogen ions can oxidize and reduce metal ions such as iron, manganese, and zinc in the soil. If there is more iron element, it will show red. The sources of the abnormal-colored substances in polluted soil mainly include the following three aspects: 1. Agricultural activities: such as excessive use of chemical fertilizers and pesticides; 2. Industrial activities: such as wastewater discharge and waste residue stacking; 3. Living activities: such as improper discharge and treatment of urban sewage and sludge, etc.

[0004] In recent years, with the implementation of the policy of "retreating from the secondary industry and advancing to the tertiary industry" and the adjustment of the urban structure, many plots of land in the pesticide, chemical industry, etc. have been left in the city. The raw and auxiliary materials, intermediates, products, and their degradation products in the production process of these plots' original sites involve a large number of volatile organic compounds (VOCs) and semi-volatile organic compounds (SVOCs), which will enter the surface and deep soil through various channels to become new odor release sources, making the problem of odor pollution of the plots particularly prominent.

[0005] Polluted soil is a complex environmental problem with a wide variety of pollutants and extensive sources. To prevent and control soil pollution, comprehensive measures need to be taken. The existing identification methods are mainly for identifying odor substances in the atmospheric environment. In the actual use process, they have poor pertinence and poor operability. The whole process requires a large amount of manpower and material resources and cannot provide strong support for environmental protection work. Therefore, a method for identifying abnormal-colored substances in polluted soil is needed to solve the above-mentioned technical problems. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention provides a method for identifying abnormal-colored substances in polluted soil, which has the advantages of strong pertinence and strong operability, and solves the problems that the existing identification methods have poor pertinence, poor operability, require a large amount of manpower and material resources in the whole process, and cannot provide strong support for environmental protection work.

[0007] To achieve the above object, the present invention provides the following technical solution: A method for identifying abnormal-colored substances in polluted soil, characterized by comprising the following steps:

[0008] S1. Preliminary investigation of the plot: Conduct on-site observation and preliminary assessment of the surrounding environment that may cause pollution, and understand the types, scales of possible pollution sources and the degree of impact on the surrounding environment;

[0009] S2. Determination of sampling points: According to the results of the preliminary investigation, determine the points where soil samples need to be collected. The selection of points needs to cover different pollution degrees and possible pollution sources;

[0010] S3. Sample collection and preservation: Use appropriate tools and methods to collect soil samples to ensure the representativeness and non-interference of the samples; after collection, properly preserve the collected samples to avoid pollution or deterioration during the preservation process;

[0011] S4. Pretreatment of soil samples: Conduct necessary pretreatment on the collected soil samples to facilitate subsequent analysis and detection;

[0012] S5. Sample detection and analysis: Use any one of physical analysis methods, chemical analysis methods or biological analysis methods to detect and analyze the soil samples;

[0013] S6. Determination of the types of abnormal-color substances: According to the detection results, determine the types of abnormal-color substances in the soil;

[0014] S7. Screening of main abnormal-color substances: If multiple abnormal-color substances are detected, it is necessary to screen according to their concentrations, toxicities and the degrees of impact on the environment and organisms to determine the main pollutants;

[0015] S8. Data integration and analysis: Integrate all detection data and conduct comprehensive analysis to comprehensively understand the soil pollution status, the sources of abnormal-color substances and the distribution information of abnormal-color substances;

[0016] S9. Result report and treatment suggestions: According to the analysis results, prepare a detailed report to explain the soil pollution status and the identification results of abnormal-color substances; put forward targeted treatment suggestions based on the identification results to provide an effective reference for environmental protection work.

[0017] Furthermore, the tool in S3 is any one or several of a soil dynamic sampler, an electric in-situ soil sampler or a soil solution sampler.

[0018] Furthermore, the pretreatment in S4 includes drying treatment, grinding treatment and screening treatment.

[0019] Furthermore, the physical analysis method in S5 is to preliminarily judge whether the soil is polluted by measuring the physical properties of the soil.

[0020] Furthermore, the physical properties include the color of the soil, the texture of the soil and the density of the soil.

[0021] Further, the chemical analysis method in S5 is to identify the abnormal-colored substances in the soil through instrumental analysis and determine their types and concentrations.

[0022] Further, the instrument is any one of gas chromatography-mass spectrometry (GC-MS) or liquid chromatography-mass spectrometry (LC-MS).

[0023] Further, the biological analysis method in S5 is to evaluate the pollution status of the soil by using the sensitivity of biological species to the soil environment, and the biological species is any one or several of insects, worms or bacteria.

[0024] Further, the treatment suggestions in S9 include the control of pollution sources and the remediation measures for polluted soil.

[0025] Compared with the prior art, the present invention provides a method for identifying abnormal-colored substances in polluted soil, which has the following beneficial effects:

[0026] 1. The method for identifying abnormal-colored substances in polluted soil forms a complete identification process from the preliminary investigation of the plot to the sample detection and analysis, and then to the data integration and analysis. It can systematically evaluate the soil pollution status, comprehensively identify abnormal-colored substances, thereby ensuring the accuracy and reliability of the evaluation results; by using a variety of scientific analysis methods such as physics, chemistry and biology in the identification process, combined with professional chemical knowledge and experience for accurate judgment, it can scientifically reveal the characteristics and laws of soil pollution, ensuring the accuracy and scientific nature of the identification results; through detection and analysis, the types and concentrations of abnormal-colored substances in the soil, as well as the main pollutants, can be accurately determined, which helps to formulate targeted treatment plans and improve the treatment effect; each step in the identification method has specific operation guidelines and technical requirements, making the whole identification process highly operable; it has the advantages of strong systematicness, high scientific nature, strong pertinence and strong operability.

[0027] 2. The method for identifying abnormal-colored substances in polluted soil can provide strong support and reference for the subsequent soil remediation and treatment work by identifying the abnormal-colored substances in polluted soil, which helps to formulate scientific and reasonable treatment plans, reduce treatment costs and improve treatment efficiency; by identifying the abnormal-colored substances in polluted soil, pollution sources and potential risks can be discovered in time, so as to take corresponding preventive measures to avoid the spread and aggravation of pollution. The identification results can provide a scientific basis for environmental management decisions, help decision-makers formulate more reasonable and effective environmental policies and management measures, and can provide strong support for environmental protection work, solving the problems that the existing identification methods have poor pertinence and poor operability, and the whole process requires a large amount of manpower and material resources and cannot provide strong support for environmental protection work. Description of the Drawings

[0028] Figure 1 This is the identification flow chart of a method for identifying different - colored substances in contaminated soil according to the present invention. Specific embodiments

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments and drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] Please refer to Figure 1 , a method for identifying different - colored substances in contaminated soil in this embodiment includes the following steps:

[0032] S1. Preliminary investigation of the plot: Conduct on - site observation and preliminary assessment of the surrounding environment that may cause pollution, understand the possible types of pollution sources, scale, and the degree of impact on the surrounding environment;

[0033] S2. Determination of sampling points: According to the results of the preliminary investigation, determine the points where soil samples need to be collected. The selection of points needs to cover different pollution levels and possible pollution sources;

[0034] S3. Sample collection and preservation: Use appropriate tools and methods to collect soil samples to ensure the representativeness and non - interference of the samples; after collection, properly preserve the collected samples to avoid pollution or deterioration during the preservation process;

[0035] S4. Pretreatment of soil samples: Conduct necessary pretreatment on the collected soil samples for subsequent analysis and detection;

[0036] S5. Sample detection and analysis: Use any one of physical analysis methods, chemical analysis methods, or biological analysis methods to detect and analyze the soil samples;

[0037] S6. Determination of the types of different - colored substances: According to the detection results, determine the types of different - colored substances in the soil;

[0038] S7. Screening of main different - colored substances: If multiple different - colored substances are detected, they need to be screened according to their concentrations, toxicity, and the degree of impact on the environment and organisms to determine the main pollutants;

[0039] S8. Data integration and analysis: Integrate all detection data and conduct comprehensive analysis to comprehensively understand the soil pollution status, the sources of different - colored substances, and the distribution information of different - colored substances;

[0040] S9, Result Report and Governance Suggestions: Based on the analysis results, prepare a detailed report to describe the soil pollution status and the identification results of the abnormal-colored substances; propose targeted governance suggestions according to the identification results to provide effective reference for environmental protection work.

[0041] In this embodiment, by identifying the abnormal-colored substances in the polluted soil, it can provide strong support and reference for subsequent soil remediation and governance work, contribute to formulating a scientific and reasonable governance plan, reducing governance costs, and improving governance efficiency; by identifying the abnormal-colored substances in the polluted soil, the pollution sources and potential risks can be discovered in a timely manner, and corresponding preventive measures can be taken to avoid the spread and aggravation of pollution. The identification results can provide a scientific basis for environmental management decision-making, help decision-makers formulate more reasonable and effective environmental policies and management measures, and can provide strong support for environmental protection work.

[0042] Specifically, the pretreatment in S4 includes drying treatment, grinding treatment, and screening treatment.

[0043] Specifically, the governance suggestions in S9 include the control of pollution sources and the remediation measures for polluted soil.

[0044] It should be noted that the tool in S3 is any one or several of a soil dynamic sampler, an electric in-situ soil sampler, or a soil solution sampler.

[0045] In this embodiment, the physical analysis method in S5 is to preliminarily judge whether the soil is polluted by measuring the physical properties of the soil.

[0046] Specifically, the physical properties include the color of the soil, the texture of the soil, and the density of the soil.

[0047] Embodiment Two:

[0048] Please refer to Figure 1 , a method for identifying abnormal-colored substances in a polluted soil in this embodiment, includes the following steps:

[0049] S1, Preliminary Site Investigation: Conduct on-site observation and preliminary assessment of the surrounding environment that may cause pollution, understand the possible types and scales of pollution sources and the degree of impact on the surrounding environment;

[0050] S2, Determination of Sampling Points: According to the preliminary investigation results, determine the points where soil samples need to be collected. The selection of points needs to cover different pollution degrees and possible pollution sources;

[0051] S3, Sample Collection and Preservation: Use appropriate tools and methods to collect soil samples to ensure the representativeness and non-interference of the samples; after collection, properly preserve the collected samples to avoid pollution or deterioration during the preservation process;

[0052] S4. Soil sample pretreatment: Necessary pretreatment is carried out on the collected soil samples to facilitate subsequent analysis and detection;

[0053] S5. Sample detection and analysis: The soil samples are detected and analyzed using any one of physical analysis methods, chemical analysis methods or biological analysis methods;

[0054] S6. Identification of the types of abnormal-colored substances: According to the detection results, the types of abnormal-colored substances in the soil are determined;

[0055] S7. Screening of main abnormal-colored substances: If multiple abnormal-colored substances are detected, screening is required based on their concentrations, toxicity, and the degree of impact on the environment and organisms to determine the main pollutants;

[0056] S8. Data integration and analysis: All the detection data are integrated and comprehensively analyzed to comprehensively understand the soil pollution status, the sources of abnormal-colored substances, and the distribution information of abnormal-colored substances;

[0057] S9. Result report and treatment suggestions: According to the analysis results, a detailed report is prepared to describe the soil pollution status and the identification results of abnormal-colored substances; targeted treatment suggestions are put forward based on the identification results to provide effective reference for environmental protection work.

[0058] In this embodiment, by identifying the abnormal-colored substances in the polluted soil, it can provide strong support and reference for subsequent soil remediation and treatment work, help formulate a scientific and reasonable treatment plan, reduce treatment costs, and improve treatment efficiency; by identifying the abnormal-colored substances in the polluted soil, the pollution sources and potential risks can be discovered in a timely manner, and corresponding preventive measures can be taken to avoid the spread and aggravation of pollution. The identification results can provide a scientific basis for environmental management decision-making, help decision-makers formulate more reasonable and effective environmental policies and management measures, and can provide strong support for environmental protection work.

[0059] Specifically, the pretreatment in S4 includes drying treatment, grinding treatment, and screening treatment.

[0060] Specifically, the treatment suggestions in S9 include the control of pollution sources and the remediation measures for polluted soil.

[0061] It should be noted that the tool in S3 is any one or several of a soil dynamic sampler, an electric in-situ soil sampler, or a soil solution sampler.

[0062] In this embodiment, the chemical analysis method in S5 is to identify the abnormal-colored substances in the soil through instrumental analysis to determine their types and concentrations.

[0063] Specifically, the instrument is any one of gas chromatography - mass spectrometry (GC - MS) or liquid chromatography - mass spectrometry (LC - MS).

[0064] Example 3:

[0065] Please refer to Figure 1 , a method for identifying colored substances in contaminated soil in this embodiment, includes the following steps:

[0066] S1. Preliminary investigation of the plot: Conduct on - site observation and preliminary assessment of the surrounding environment that may cause pollution, understand the types, scales of possible pollution sources, and the degree of impact on the surrounding environment;

[0067] S2. Determination of sampling points: According to the results of the preliminary investigation, determine the points where soil samples need to be collected. The selection of points needs to cover different pollution degrees and possible pollution sources;

[0068] S3. Sample collection and preservation: Use appropriate tools and methods to collect soil samples to ensure the representativeness and non - interference of the samples; after collection, properly preserve the collected samples to avoid pollution or deterioration during preservation;

[0069] S4. Pretreatment of soil samples: Conduct necessary pretreatment on the collected soil samples to facilitate subsequent analysis and detection;

[0070] S5. Sample detection and analysis: Use any one of physical analysis methods, chemical analysis methods, or biological analysis methods to detect and analyze the soil samples;

[0071] S6. Determination of the types of colored substances: According to the detection results, determine the types of colored substances in the soil;

[0072] S7. Screening of main colored substances: If multiple colored substances are detected, they need to be screened according to their concentrations, toxicities, and the degree of impact on the environment and organisms to determine the main pollutants;

[0073] S8. Data integration and analysis: Integrate all detection data and conduct comprehensive analysis to comprehensively understand the soil pollution status, the sources of colored substances, and the distribution information of colored substances;

[0074] S9. Result report and treatment suggestions: According to the analysis results, prepare a detailed report to describe the soil pollution status and the identification results of colored substances; put forward targeted treatment suggestions based on the identification results to provide effective reference for environmental protection work.

[0075] In this embodiment, by identifying the abnormal-colored substances in the contaminated soil, it can provide strong support and reference for subsequent soil remediation and treatment work, contribute to formulating a scientific and reasonable treatment plan, reducing the treatment cost, and improving the treatment efficiency; by identifying the abnormal-colored substances in the contaminated soil, the pollution sources and potential risks can be discovered in a timely manner, and corresponding preventive measures can be taken to avoid the spread and aggravation of pollution. The identification results can provide a scientific basis for environmental management decisions, help decision-makers formulate more reasonable and effective environmental policies and management measures, and can provide strong support for environmental protection work.

[0076] Specifically, the pretreatment in S4 includes drying treatment, grinding treatment, and screening treatment.

[0077] Specifically, the treatment suggestions in S9 include the control of pollution sources and the remediation measures for the contaminated soil.

[0078] It should be noted that the tool in S3 is any one or several of a soil dynamic sampler, an electric in-situ soil sampler, or a soil solution sampler.

[0079] In this embodiment, the biological analysis method in S5 is to evaluate the pollution status of the soil by using the sensitivity of biological species to the soil environment.

[0080] It should be noted that the biological species is any one or several of insects, worms, or bacteria.

[0081] The beneficial effects of the present invention are:

[0082] The method for identifying abnormal-colored substances in the contaminated soil forms a complete identification process from the preliminary investigation of the plot to the sample detection and analysis, and then to the data integration and analysis. It can systematically evaluate the soil pollution status, comprehensively identify the abnormal-colored substances, and thus ensure the accuracy and reliability of the evaluation results; through the use of various scientific analysis methods such as physics, chemistry, and biology in the identification process, combined with professional chemical knowledge and experience for accurate judgment, it can scientifically reveal the characteristics and laws of soil pollution and ensure the accuracy and scientificity of the identification results; through the detection and analysis, the types and concentrations of abnormal-colored substances in the soil, as well as the main pollutants, can be accurately determined, which helps to formulate a targeted treatment plan and improve the treatment effect; each step in the identification method has specific operation guidelines and technical requirements, making the entire identification process highly operable; it has the advantages of strong systematicness, high scientificity, strong pertinence, and strong operability.

[0083] The method for identifying abnormal-colored substances in contaminated soil can provide strong support and reference for subsequent soil remediation and treatment work by identifying the abnormal-colored substances in the contaminated soil, which helps to formulate a scientific and reasonable treatment plan, reduce the treatment cost, and improve the treatment efficiency. By identifying the abnormal-colored substances in the contaminated soil, the pollution sources and potential risks can be detected in a timely manner, and corresponding preventive measures can be taken to avoid the spread and aggravation of pollution. The identification results can provide a scientific basis for environmental management decisions, help decision-makers formulate more reasonable and effective environmental policies and management measures, and can provide strong support for environmental protection work, solving the problems of poor pertinence and poor operability of the existing identification methods, the need for a large amount of manpower and material resources in the whole process, and the inability to provide strong support for environmental protection work.

[0084] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for identifying heterochromatic substances in contaminated soil, characterized in that: The following steps are involved: S1. Preliminary site survey: Conduct on-site observation and preliminary assessment of the surrounding environment that may cause pollution, and understand the type and scale of possible pollution sources and the degree of impact on the surrounding environment; S2. Determination of sampling points: Based on the preliminary investigation results, determine the points where soil samples need to be collected. The selection of points needs to cover different pollution levels and possible pollution sources; S3. Sample collection and preservation: Use appropriate tools and methods to collect soil samples to ensure that the samples are representative and non-interfering; After the collection is completed, the collected samples should be properly stored to avoid contamination or deterioration during the storage process; S4. Soil sample pretreatment: Perform necessary pretreatment on the collected soil samples to facilitate subsequent analysis and testing; S5. Sample testing and analysis: using any one of the physical analysis methods, chemical analysis methods or biological analysis methods to test and analyze the soil samples; S6. Determine the type of heterochromatic substance: Determine the type of heterochromatic substance in the soil according to the test results; S7. Screening of major heterochromatic substances: If multiple heterochromatic substances are detected, they need to be screened according to their concentration, toxicity, and impact on the environment and organisms to determine the major pollutants; S8. Data integration and analysis: Integrate all test data and conduct comprehensive analysis to fully understand the soil pollution status, the source of heterochromatic substances and the distribution information of heterochromatic substances; S9. Result report and treatment suggestions: Based on the analysis results, prepare a detailed report to explain the pollution status of the soil and the identification results of foreign substances; based on the identification results, put forward targeted treatment suggestions to provide effective reference for environmental protection work.

2. The method for identifying heterochromatic substances in contaminated soil according to claim 1, characterized in that: The tool in S3 is any one or more of a soil dynamic sampler, an electric in-situ soil sampler or a soil solution sampler.

3. The method for identifying heterochromatic substances in contaminated soil according to claim 1, characterized in that: The pre-treatment in S4 includes drying, grinding and screening.

4. The method for identifying heterochromatic substances in contaminated soil according to claim 1, characterized in that: The physical analysis method in S5 is to preliminarily determine whether the soil is contaminated by measuring the physical properties of the soil.

5. The method for identifying heterochromatic substances in contaminated soil according to claim 4, characterized in that: The physical properties include soil color, soil texture, and soil density.

6. The method for identifying heterochromatic substances in contaminated soil according to claim 1, characterized in that: The chemical analysis method in S5 is to identify heterochromatic substances in the soil through instrumental analysis to determine their types and concentrations.

7. The method for identifying heterochromatic substances in contaminated soil according to claim 6, characterized in that: The instrument is any one of gas chromatography-mass spectrometry (GC-MS) or liquid chromatography-mass spectrometry (LC-MS).

8. The method for identifying heterochromatic substances in contaminated soil according to claim 1, characterized in that: The biological analysis method in S5 is to evaluate the pollution status of the soil by utilizing the sensitivity of biological species to the soil environment, and the biological species is any one or more of insects, worms or bacteria.

9. The method for identifying heterochromatic substances in contaminated soil according to claim 1, characterized in that: The remediation recommendations in S9 include control of pollution sources and remediation measures for contaminated soil.

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