CN114904899B - Polluted soil treatment method and system - Google Patents
Polluted soil treatment method and system Download PDFInfo
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Abstract
The invention relates to the technical field of soil treatment, in particular to a polluted soil treatment method and a system, wherein the polluted soil treatment method comprises a detection module, an analysis module and a background module, and the method comprises the following steps: the detection module detects the soil pH value and the soil heavy metal components in a preset area; the analysis module respectively compares the soil background value of the preset area with the soil pH value parameter and the soil heavy metal component parameter; and the analysis module judges which amount of the preset area soil treatment scheme is used in the background module according to the result of respectively comparing the background value of the preset area with the soil pH value parameter and the soil heavy metal component parameter. The invention can accurately judge what amount of corresponding chemical agent is needed for treating the polluted soil at the current stage, and can readjust the treatment scheme at the next stage by using the treatment effect at the previous stage until the soil treatment achieves the preset treatment effect.
Description
Technical Field
The invention relates to the technical field of soil treatment, in particular to a polluted soil treatment method and system.
Background
Soil pollutants can be broadly classified into two broad categories, inorganic pollutants and organic pollutants. The inorganic pollutants mainly comprise acid, alkali, heavy metal, salt, compounds of radioactive elements cesium and strontium, compounds containing arsenic, selenium and fluorine and the like. The organic pollutants mainly comprise organic pesticides, phenols, cyanides, petroleum, synthetic detergents, 3, 4-benzopyrene, harmful microorganisms brought by municipal sewage, sludge and manure, and the like.
The pollution type is mainly inorganic type and organic type, the specific gravity of the composite pollution is small, and the number of the superscript point bits of the inorganic pollutants accounts for 82.8% of all superscript point bits.
Chinese patent publication No.: CN113020232B. The method comprises the steps of integrating and analyzing the existing remediation and treatment information of the heavy metal polluted farmland, calculating different cases to obtain index remediation indexes to be decided corresponding to each remediation measure, taking the calculated index remediation indexes to be decided as input, constructing a suitable probability calculation model corresponding to the remediation measures, obtaining a model corresponding to a remediation technology according to data given by the different cases, and then obtaining the optimal remediation measure according to the input of the index to be decided of the soil to be treated; therefore, the complexity of land pollution is not considered, the appropriate probability of the corresponding repair measures is not considered, only the effect is obvious or not, multiple low-probability repair measures can exist according to different specific environments, any single repair measure is adopted without any help, multiple measurements and multiple system optimization and judgment are performed after the single repair measure is applied for multiple times, and labor and time cost are increased while the calculation force is wasted.
Disclosure of Invention
Therefore, the invention provides a method and a system for treating polluted soil. The method is used for overcoming the problem that the complex soil environment cannot be effectively, efficiently and intelligently analyzed and solved systematically in the prior art.
In order to achieve the above object, the present invention provides a contaminated soil remediation method and system, comprising a detection module, an analysis module, and a background module, wherein,
the detection module comprises a soil pH value detection unit and a soil heavy metal detection unit, and the detection module is used for detecting the pH value of soil in a preset area and heavy metal components to determine the pollution level of the area.
The analysis module is used for obtaining current soil pH value parameters and soil heavy metal component parameters according to the soil pH value and the soil heavy metal component proportion detected by the detection module, and judging which treatment scheme is used according to the current soil pH value parameters and the soil heavy metal component parameters.
The background module is used for storing a preset area soil environment background value and a preset area soil treatment scheme, wherein the preset area soil treatment scheme comprises but is not limited to a soil acid-base conditioner, a soil heavy metal curing agent, a soil conditioner and a soil biological activity repairing agent, wherein,
soil acid and base conditioners include, but are not limited to, acidic soil conditioners and alkaline soil conditioners;
soil heavy metal curing agents include, but are not limited to, silico-calcium materials, phosphorus-containing materials, organic materials, clay minerals, metals and metal oxides, biochar, and novel materials;
the soil conditioner comprises but is not limited to mineral soil conditioners, natural polymer soil conditioners, semi-synthetic water-soluble polymer soil conditioners, artificially synthetic polymer soil conditioners and beneficial microbial agent soil conditioners;
soil bioactive remediation agents include, but are not limited to, in situ microbial remediation agents and ectopic microbial remediation agents;
a polluted soil treatment method comprises the following steps:
the method comprises the following steps that S1, a detection module detects soil pH value and soil heavy metal components in a preset area;
s2, respectively comparing the soil background value, the soil pH value parameter and the soil heavy metal component parameter of a preset area by an analysis module;
s3, judging which amount of the preset area soil treatment scheme in the background module is used according to the result of respectively comparing the background value of the preset area with the soil pH value parameter and the soil heavy metal component parameter, and implementing;
s4, the analysis module obtains the treatment error parameters of the step S4 according to the comparison result of the theoretical treatment effect of the step S3 and the actual treatment effect of the step S3,
s5, judging that the soil treatment is stopped by the analysis module if the soil treatment reaches a preset treatment effect, and continuing to execute the step S6 if the soil treatment does not reach the preset treatment effect;
s6, the analysis module respectively compares preset soil pH value data and soil heavy metal component data of a preset area with the current soil pH value data and soil heavy metal component data obtained in the step S4;
s7, judging which amount of the soil treatment scheme of the preset area in the background module is used according to the result of respectively comparing the preset soil pH value data and the soil heavy metal component data of the preset area with the current soil pH value data and the current soil heavy metal component data;
s8, correcting the treatment scheme obtained in the step S7 by the analysis module according to the treatment error parameters obtained in the step S4 to obtain a soil treatment scheme of the preset area in the step S8, and implementing the scheme;
s9, an analysis module obtains a treatment error parameter of the step S9 according to a comparison result of a preset treatment effect of the soil in the preset area and the actual treatment effect of the step S8;
and S10, judging that the soil treatment is ended by the analysis module if the soil treatment reaches a preset treatment effect at the moment, replacing the treatment error parameter of the step S9 by the treatment error parameter of the step S4 in the step S8 by the analysis module if the soil treatment does not reach the preset treatment effect at the moment, and continuously and sequentially executing the step S6 to the step S10 until the analysis module judges that the soil treatment is ended.
In the step S1, a detection module detects soil data of a preset area according to preset detection point positions;
in step S2, the analysis module performs data processing on soil data detected according to a preset detection point location in a preset area to obtain soil data distribution lines with the same longitude and the same latitude, wherein the soil data distribution lines include a soil ph data distribution line with the same longitude and a soil heavy metal component data distribution line with the same longitude, a soil ph data distribution line with the same latitude and a soil heavy metal component data distribution line with the same latitude, and the analysis module compares the soil data distribution lines with the same longitude and the same latitude with a background value of the preset area respectively;
the analysis module is provided with a soil pollution reference value, wherein the soil pollution reference value comprises a soil mild heavy metal pollution reference value, a soil severe heavy metal pollution reference value, a soil mild acid pollution reference value, a soil severe acid pollution reference value, a soil mild alkaline pollution reference value and a soil severe alkaline pollution reference value;
the analysis module compares the comparison result of the soil data distribution connecting line with the same longitude and the same latitude and the background value of the preset area with the soil pollution reference value to determine the soil pollution types and the soil pollution degrees of all preset detection points in the preset area;
in step S3, the analysis module selects a soil treatment scheme corresponding to the soil pollution type and the soil pollution degree of the preset detection point in the background module according to the soil pollution types and the soil pollution degrees of all the preset detection points in the preset area obtained in step S2, calculates the amount/concentration of a chemical agent required by the corresponding soil treatment scheme, and determines that the soil of the preset detection point does not need a treatment scheme if the soil pollution degree of the preset detection point is uncontaminated.
In step S4, the analysis module compares the soil improvement actual value of the preset detection point location in the preset region after the treatment in step S3 with the soil improvement preset value of the preset detection point location in the preset region after the treatment in step S3, calculates the difference between the soil improvement actual value of the preset detection point location in the preset region after the treatment in step S3 and the soil improvement preset value of the preset detection point location in the preset region after the treatment in step S3 to obtain a treatment error value in step S4, and calculates the percentage of the treatment error value in step S4 to the soil improvement actual value before the treatment in step S3 to obtain a treatment error parameter in step S4.
In step S5, the analysis module judges whether the soil treatment reaches the preset treatment effect or not according to the numerical value of the treatment error in the step S4, the analysis module sets the numerical value of the treatment error in the step S4 as x,
when x is less than or equal to 0, the analysis module judges that the soil treatment in the preset area reaches the preset treatment effect, and the soil treatment process is finished;
when x is larger than 0, the analysis module judges that the soil treatment in the preset area does not reach the preset treatment effect at the moment, the soil treatment process is not finished, and the step S6 is required to be continuously executed;
in step S6, the analysis module compares the actual soil improvement value of the preset detection point in the preset region after treatment obtained in step S4 with the preset soil improvement value of the preset detection point in the preset region;
in step S7, the analysis module performs data processing on the soil improvement actual numerical value and the soil improvement preset numerical value of the preset detection point in the preset area obtained in step S6 to obtain distribution connecting lines of the soil actual data and the soil preset data of the same longitude and the same latitude respectively, wherein the distribution connecting lines include a soil ph actual and preset data distribution connecting line of the same longitude and a soil heavy metal component actual and preset data distribution connecting line of the same longitude, a soil ph actual and preset data distribution connecting line of the same latitude and a soil heavy metal component actual and preset data distribution connecting line of the same latitude, and the analysis module compares the soil actual data distribution connecting line of the same longitude and the same latitude with the soil improvement preset data distribution connecting line respectively;
the analysis module compares the comparison result of the soil actual data distribution connecting line and the soil treatment preset data distribution connecting line with the same longitude and the same latitude with a soil pollution reference value to determine the soil pollution types and the soil pollution degrees of all preset detection points in the preset area, selects a soil treatment scheme corresponding to the soil pollution types and the soil pollution degrees of the preset area in the background module according to the soil pollution types and the soil pollution degrees of all the preset detection points in the preset area, and calculates the quantity/concentration of chemical agents required by the corresponding soil treatment scheme;
in step S8, the analysis module corrects the quantity/concentration of the chemical agent in the soil treatment scheme obtained in step S7 according to the treatment error parameters in step S4,
the analysis module sets the preset value of the soil treatment in the step S3 as A;
the analysis module sets the actual soil treatment value of the preset detection point after the treatment in the step S3 as A1;
the analysis module sets the actual soil treatment numerical value of the preset detection point position before treatment in the step S3 as A2;
the analysis module sets the preset value of the soil treatment in the step S7 as B;
the analysis module sets the governing error parameter of the step S4 as X,
；
the analysis module sets the concentration of the chemical agent in the soil treatment scheme used in the step S3 as a and the quantity as b, and sets the concentration of the chemical agent in the soil treatment scheme used in the step S7 as the same concentration in the soil treatment scheme used in the step S3The concentration a of the chemical agent, the amount of the chemical agent in the soil treatment plan obtained in step S7 is corrected to
And the quantity of the chemical preparation in the soil treatment scheme obtained in the step S8 is
。
In step S9, the analysis module compares the soil improvement actual value of the preset detection point in the preset region after the detection module detects the soil improvement in step S8 with the soil improvement preset value of the preset detection point in the preset region after the detection module detects the soil improvement in step S8, calculates a difference between the soil improvement actual value of the preset detection point in the preset region after the detection module detects the soil improvement and the soil improvement preset value of the preset detection point in the preset region after the detection module detects the soil improvement in step S8, obtains a step S9 improvement error value, calculates a percentage of the step S9 improvement error value to the soil improvement preset value after the treatment in step S8, obtains a step S9 improvement error parameter, calculates a percentage of the step S9 soil improvement error value and a percentage of the step S4 soil improvement error value to the soil improvement actual value of the preset detection point before the treatment in step S8 and the soil improvement actual value before the detection module detects the soil improvement in step S3, and calculates a step S9 improvement error trend parameter according to the error percentages.
In step S10, the analysis module judges whether the soil treatment reaches the preset treatment effect according to the numerical value of the treatment error in step S9, the analysis module sets the numerical value of the treatment error in step S9 as e,
when e is less than or equal to 0, the analysis module judges that the soil treatment of the preset area reaches the preset treatment effect at the moment, and the soil treatment process is finished;
when e is larger than 0, the analysis module judges that the soil treatment in the preset area does not reach the preset treatment effect at the moment, the soil treatment process is not finished, the analysis module optimizes the soil treatment scheme in the preset area in the step S8 by using the treatment error trend parameter in the step S9, and the treatment error parameter in the step S4 in the step S8 is replaced by the treatment error parameter in the step S9;
if the judgment result of the analysis module is that the soil treatment process is not finished, the analysis module judges that the step S10 is finished, then the analysis module returns to the step S6 and executes the step S10 until the judgment result of the analysis module is that the soil treatment process is finished.
Compared with the prior art, the method has the beneficial effect that for a certain area polluted by soil, the method can accurately and effectively judge which specific and corresponding chemical agent is needed in the current stage to treat the polluted soil.
Furthermore, the treatment scheme of the next stage is readjusted by using the treatment effect of the previous stage, and the correction quantity of any chemical agent used again is accurately judged, so that the treatment process of the polluted soil has enough pertinence, and the soil treatment process is repeated until the soil treatment reaches the preset treatment effect, so that each treatment process aiming at the complex soil environment has a more intelligent problem solution.
Particularly, in the practical application process, aiming at the treatment method of the complex soil environment, the large-area pavement is paved from a plurality of times in the initial treatment period, then the small-area surrounding surface is paved from a plurality of times in the middle treatment period, and finally the small-area surrounding surface is aimed at from a plurality of times in the later treatment period until the soil treatment reaches the preset treatment effect, so that the treatment process is more efficient, the loss of manpower and material resources is reduced, and the soil treatment cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of the contaminated soil remediation method of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and do not delimit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a schematic structural diagram of a contaminated soil remediation system according to an embodiment of the present invention, which includes a detection module, an analysis module, and a background module, wherein,
the detection module comprises a soil pH value detection unit and a soil heavy metal detection unit, and is used for detecting the pH value of the soil in a preset area and heavy metal components to determine the pollution level of the area.
The analysis module is used for obtaining a current soil pH value parameter and a soil heavy metal component parameter according to the soil pH value and the soil heavy metal component proportion detected by the detection module, and judging which treatment scheme is used according to the current soil pH value parameter and the soil heavy metal component parameter.
The background module is used for storing a preset area soil environment background value and a preset area soil treatment scheme.
In this embodiment, the soil treatment plan for the predetermined area includes, but is not limited to, soil acid-base conditioner, soil heavy metal curing agent, soil conditioner, soil bioactive repairing agent, wherein,
soil acid-base conditioners include, but are not limited to, acid soil conditioners and alkaline soil conditioners;
soil heavy metal curing agents include, but are not limited to, silico-calcium materials, phosphorus-containing materials, organic materials, clay minerals, metals and metal oxides, biochar, and novel materials;
the soil conditioner comprises but is not limited to mineral soil conditioners, natural polymer soil conditioners, semi-synthetic water-soluble polymer soil conditioners, artificially synthetic polymer soil conditioners and beneficial microbial preparation soil conditioners;
soil bioactive remediation agents include, but are not limited to, in situ microbial remediation agents and ectopic microbial remediation agents;
the preset area soil treatment scheme is not limited to only using a certain scheme in an actual environment, nor to only using a certain chemical preparation corresponding to a certain pollution in a certain scheme, and considering the complexity of soil pollution and the stage of soil treatment in the actual soil environment, the preset area soil treatment scheme is mostly used by mixing a plurality of chemical preparations.
A polluted soil treatment method comprises the following steps:
the method comprises the following steps that S1, a detection module detects soil pH value and soil heavy metal components in a preset area;
s2, the analysis module respectively compares the soil background value of a preset area with the soil pH value parameter and the soil heavy metal component parameter;
s3, judging which amount of soil treatment scheme in the preset area in the background module is used according to the result of respectively comparing the background value of the preset area with the soil pH value parameter and the soil heavy metal component parameter, and implementing;
s4, obtaining a treatment error parameter of the step S4 by an analysis module according to a comparison result of the theoretical treatment effect of the step S3 and the actual treatment effect of the step S3,
s5, judging that the soil treatment is stopped by the analysis module if the soil treatment reaches a preset treatment effect, and continuing to execute the step S6 if the soil treatment does not reach the preset treatment effect;
s6, the analysis module respectively compares preset soil pH value data and soil heavy metal component data of a preset area with the current soil pH value data and soil heavy metal component data obtained in the step S4;
s7, judging which amount of the soil treatment scheme of the preset area in the background module is used according to the result of respectively comparing the preset soil pH value data and the soil heavy metal component data of the preset area with the current soil pH value data and the current soil heavy metal component data;
s8, correcting the treatment scheme obtained in the step S7 by the analysis module according to the treatment error parameters obtained in the step S4 to obtain a soil treatment scheme of the preset area in the step S8, and implementing the scheme;
s9, obtaining a treatment error parameter of the step S9 by an analysis module according to a comparison result of the preset treatment effect of the soil in the preset area and the actual treatment effect of the step S8;
and S10, judging that the soil treatment is ended by the analysis module if the soil treatment reaches a preset treatment effect at the moment, replacing the treatment error parameter of the step S9 by the treatment error parameter of the step S4 in the step S8 by the analysis module if the soil treatment does not reach the preset treatment effect at the moment, and continuously and sequentially executing the step S6 to the step S10 until the analysis module judges that the soil treatment is ended.
In the step S1, a detection module detects soil data of a preset area according to preset detection point positions;
in this embodiment, the unit of the preset area is set as hectare, the preset detection point locations are set as 0.2 times of the preset area, the preset detection point locations are uniformly distributed in the preset area, the preset detection point locations are defined as positive integers, the minimum value is 1, the soil data comprise soil pH value and soil heavy metal components, the analysis module sets heavy metals in the heavy metal components existing in the soil in the preset area as HM1, HM2, 8230, HMn and n are positive integers, any heavy metal component is represented as HMi, and HMi can be set as zero.
In the step S2, the analysis module performs data processing on soil data detected according to a preset detection point location in a preset area to obtain soil data distribution links with the same longitude and the same latitude, wherein the soil data distribution links include soil ph value data distribution links with the same longitude and soil heavy metal component data distribution links with the same longitude, soil ph value data distribution links with the same latitude and soil heavy metal component data distribution links with the same latitude, and the analysis module respectively compares the soil data distribution links with the same longitude and the same latitude with a background value of the preset area;
the analysis module is provided with a soil pollution reference value, wherein the soil pollution reference value comprises a soil slight heavy metal pollution reference value, a soil severe heavy metal pollution reference value, a soil slight acid pollution reference value, a soil severe acid pollution reference value, a soil slight alkaline pollution reference value and a soil severe alkaline pollution reference value;
the analysis module compares the comparison result of the soil data distribution connecting line with the same longitude and the same latitude and the background value of the preset area with the soil pollution reference value to determine the soil pollution types and the soil pollution degrees of all preset detection points in the preset area;
in step S3, the analysis module selects a soil treatment scheme corresponding to the soil pollution type and the soil pollution degree of the preset area in the background module according to the soil pollution types and the soil pollution degrees of all the preset detection points in the preset area obtained in step S2, calculates the amount/concentration of a chemical agent required by the corresponding soil treatment scheme, and determines that the soil at the preset detection point does not need a treatment scheme if the soil pollution degree of the preset detection point is not polluted.
In step S4, the analysis module compares the soil improvement actual value of the preset detection point location in the preset region after the treatment in step S3 with the soil improvement preset value of the preset detection point location in the preset region after the treatment in step S3, calculates the difference between the soil improvement actual value of the preset detection point location in the preset region after the treatment in step S3 and the soil improvement preset value of the preset detection point location in the preset region after the treatment in step S3 to obtain a treatment error value in step S4, and calculates the percentage of the treatment error value in step S4 to the soil improvement actual value before the treatment in step S3 to obtain a treatment error parameter in step S4.
In this embodiment, the calculation of the governing error value in the step S4 includes all the heavy metal components existing in the soil at the preset detection point, and the governing error value in the step S4 is a set of governing error values of the heavy metal HM1 in the step S4, a governing error value of the heavy metal HM2 in the step S4, \ 8230 \ and a set of governing error values of the heavy metal HMn in the step S4, and the governing error parameters in the step S4 are the governing error parameters of the heavy metal HM1 in the step S4, the governing error parameters of the heavy metal HM2 in the step S4, \\ 8230: \ a set of governing error parameters of the heavy metal HMn in the step S4.
In step S5, the analysis module judges whether the soil treatment reaches the preset treatment effect according to the numerical value of the treatment error in the step S4, the analysis module sets the numerical value of the treatment error in the step S4 as x,
when x is less than or equal to 0, the analysis module judges that the soil treatment in the preset area reaches the preset treatment effect, and the soil treatment process is finished;
when x is larger than 0, the analysis module judges that the soil treatment in the preset area does not reach the preset treatment effect at the moment, the soil treatment process is not finished, and the step S6 needs to be continuously executed;
in step S6, the analysis module compares the actual soil improvement value of the preset detection point in the preset region after treatment obtained in step S4 with the preset soil improvement value of the preset detection point in the preset region;
in step S7, the analysis module performs data processing on the soil improvement actual numerical value and the soil improvement preset numerical value of the preset detection point in the preset area obtained in step S6 to obtain distribution connecting lines of the soil actual data and the soil preset data of the same longitude and the same latitude respectively, wherein the distribution connecting lines include a soil ph actual and preset data distribution connecting line of the same longitude and a soil heavy metal component actual and preset data distribution connecting line of the same longitude, a soil ph actual and preset data distribution connecting line of the same latitude and a soil heavy metal component actual and preset data distribution connecting line of the same latitude, and the analysis module compares the soil actual data distribution connecting line of the same longitude and the same latitude with the soil improvement preset data distribution connecting line respectively;
the analysis module compares the comparison result of the soil actual data distribution connecting line and the soil treatment preset data distribution connecting line with the same longitude and the same latitude with the soil pollution reference value to determine the soil pollution types and the soil pollution degrees of all preset detection points in the preset area, selects a soil treatment scheme corresponding to the soil pollution types and the soil pollution degrees of the preset area in the background module according to the soil pollution types and the soil pollution degrees of all the preset detection points in the preset area, and calculates the quantity/concentration of a chemical agent required by the corresponding soil treatment scheme;
in step S8, the analysis module corrects the quantity/concentration of the chemical agent in the soil treatment scheme obtained in step S7 according to the treatment error parameters in step S4,
the analysis module sets the preset value of the soil treatment in the step S3 as A;
the analysis module sets the actual soil treatment value of the preset detection point after the treatment in the step S3 as A1;
the analysis module sets the actual soil treatment value of the preset detection point position before treatment in the step S3 as A2;
the analysis module sets the preset value of the soil treatment in the step S7 as B;
the analysis module sets the governing error parameter of the step S4 as X,
；
the analysis module sets the concentration of the chemical agent in the soil treatment scheme used in the step S3 as a and the quantity as b, and sets the concentration of the chemical agent in the soil treatment scheme used in the step S7 as the sameThe concentration a of the chemical agent in the soil treatment plan used in step S3, the amount of the chemical agent in the soil treatment plan obtained in step S7 is corrected to
And the quantity of the chemical preparation in the soil treatment scheme obtained in the step S8 is
。
In step S9, the analysis module compares the soil improvement actual value of the preset detection point in the preset region after the detection module detects the soil improvement in step S8 with the soil improvement preset value of the preset detection point in the preset region after the detection module detects the soil improvement in step S8, calculates a difference between the soil improvement actual value of the preset detection point in the preset region after the detection module detects the soil improvement and the soil improvement preset value of the preset detection point in the preset region after the detection module detects the soil improvement in step S8, obtains a step S9 improvement error value, calculates a percentage of the step S9 improvement error value to the soil improvement preset value after the treatment in step S8, obtains a step S9 improvement error parameter, calculates a percentage of the step S9 soil improvement error value and a percentage of the step S4 soil improvement error value to the soil improvement actual value of the preset detection point before the treatment in step S8 and the soil improvement actual value before the detection module detects the soil improvement in step S3, and calculates a step S9 improvement error trend parameter according to the error percentages.
In step S10, the analysis module judges whether the soil treatment reaches the preset treatment effect according to the numerical value of the treatment error in step S9, the analysis module sets the numerical value of the treatment error in step S9 as e,
when e is less than or equal to 0, the analysis module judges that the soil treatment of the preset area reaches the preset treatment effect at the moment, and the soil treatment process is finished;
when e is larger than 0, the analysis module judges that the soil treatment in the preset area does not reach the preset treatment effect at the moment, the soil treatment process is not finished, the analysis module optimizes the soil treatment scheme in the preset area in the step S8 by using the treatment error trend parameter in the step S9, and the treatment error parameter in the step S4 in the step S8 is replaced by the treatment error parameter in the step S9;
if the judgment result of the analysis module is that the soil treatment process is not finished, the analysis module judges that the step S10 is finished, then the analysis module returns to the step S6 and executes the step S10 until the judgment result of the analysis module is that the soil treatment process is finished.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A contaminated soil remediation method, comprising:
the method comprises the following steps that S1, a detection module detects soil pH value and soil heavy metal components in a preset area;
s2, respectively comparing the detected soil pH value parameter and soil heavy metal component parameter with a soil background value set in the analysis module by the analysis module;
s3, the analysis module judges which type of soil treatment scheme of the preset area in the background module is used according to the results of the respective comparison of the soil background value of the preset area with the soil pH value parameter and the soil heavy metal component parameter, and implements the scheme;
s4, the analysis module obtains a treatment error parameter of the step S4 according to a comparison result of the theoretical treatment effect of the step S3 and the actual treatment effect of the step S3;
step S5, the analysis module judges that the soil treatment is stopped if the soil treatment reaches a preset treatment effect at the moment, and the analysis module judges that the step S6 is continuously executed if the soil treatment does not reach the preset treatment effect at the moment;
s6, the analysis module respectively compares preset soil pH value data and soil heavy metal component data of the preset area with the current soil pH value data and soil heavy metal component data obtained in the step S4;
s7, comparing the soil pH value data and the soil heavy metal component data obtained in the step S6 with a soil background value set in the analysis module respectively by the analysis module, and judging which type of the preset area soil treatment scheme in the background module is used by the analysis module according to a comparison result;
s8, the analysis module corrects the treatment scheme obtained in the step S7 according to the treatment error parameters obtained in the step S4 to obtain a soil treatment scheme of the preset area in the step S8, and the soil treatment scheme is implemented;
s9, the analysis module obtains a treatment error parameter of the step S9 according to a comparison result of a preset treatment effect of the soil in the preset area and the actual treatment effect of the step S8;
step S10, the analysis module judges that the soil treatment is ended if the soil treatment reaches a preset treatment effect, replaces the treatment error parameter of the step S4 in the step S8 with the treatment error parameter of the step S9 if the soil treatment does not reach the preset treatment effect, and continues to sequentially execute the steps S6 to S10 until the analysis module judges that the soil treatment is ended;
in the step S2, the analysis module performs data processing on the soil data detected according to the preset detection point location in the preset area to obtain soil data distribution links with the same longitude and the same latitude, wherein the soil data distribution links include soil ph value data distribution links with the same longitude and soil heavy metal component data distribution links with the same longitude, soil ph value data distribution links with the same latitude and soil heavy metal component data distribution links with the same latitude, and the analysis module respectively compares the soil data distribution links with the same longitude and the same latitude with the soil background value of the preset area;
the analysis module compares the comparison result of the soil data distribution connecting line with the same longitude and the same latitude and the soil background value of the preset area with the soil pollution reference value to determine the soil pollution types and the soil pollution degrees of all preset detection points in the preset area;
in the step S3, the analysis module selects a soil treatment scheme corresponding to the soil pollution type and the soil pollution degree of the preset area in the background module according to the soil pollution types and the soil pollution degrees of all the preset detection points in the preset area obtained in the step S2, calculates the amount/concentration of a chemical agent required by the corresponding soil treatment scheme, and determines that the soil of the preset detection point does not need a treatment scheme if the soil pollution degree of the preset detection point is uncontaminated;
in step S4, the analysis module compares the soil improvement actual value of the preset detection point location in the preset region after the detection module detects the soil improvement in step S3 with the soil improvement preset value of the preset detection point location in the preset region after the detection module detects the soil improvement in step S3, calculates a difference between the soil improvement actual value of the preset detection point location in the preset region after the detection module detects the soil improvement in step S3 and the soil improvement preset value of the preset detection point location in the preset region after the detection module detects the soil improvement in step S3, obtains a step S4 improvement error value, and calculates a percentage of the step S4 improvement error value to the soil improvement actual value before the step S3, obtains a step S4 improvement error parameter;
in the step S5, the analysis module judges whether the soil treatment reaches a preset treatment effect according to the treatment error value of the step S4, and the analysis module sets the treatment error value of the step S4 as x;
when x is less than or equal to 0, the analysis module judges that the soil treatment of the preset area reaches the preset treatment effect at the moment, and the soil treatment process is finished;
when x is larger than 0, the analysis module judges that the soil treatment in the preset area does not reach the preset treatment effect at the moment, the soil treatment process is not finished, and the step S6 needs to be continuously executed;
in the step S6, the analysis module compares the actual soil remediation value of the preset detection point location in the preset region after the remediation obtained in the step S4 with the preset soil remediation value of the preset detection point location in the preset region;
in the step S7, the analysis module performs data processing on the soil improvement actual numerical value and the soil improvement preset numerical value of the preset detection point in the preset area obtained in the step S6 to obtain distribution connection lines of the data of the soil actual numerical value and the data of the soil improvement preset numerical value in the same longitude and the same latitude, respectively, wherein the distribution connection lines include a soil ph actual and preset data distribution connection line in the same longitude and a soil heavy metal component actual and preset data distribution connection line in the same longitude, a soil ph actual and preset data distribution connection line in the same latitude and a soil heavy metal component actual and preset data distribution connection line in the same latitude, and the analysis module respectively compares the soil actual data distribution connection line in the same longitude and the same latitude with the soil improvement preset numerical data distribution connection line;
the analysis module compares the comparison result of the distribution connecting line with the same longitude and the same latitude and the soil treatment preset data distribution connecting line with a soil pollution reference value to determine the soil pollution types and the soil pollution degrees of all preset detection points in the preset area, selects the soil treatment scheme corresponding to the soil pollution types and the soil pollution degrees of the preset area in the background module according to the soil pollution types and the soil pollution degrees of all the preset detection points in the preset area, and calculates the quantity/concentration of chemical agents required by the corresponding soil treatment scheme;
in the step S8, the analysis module corrects the amount/concentration of the chemical agent in the soil improvement plan obtained in the step S7 according to the improvement error parameter in the step S4,
the analysis module sets the soil treatment preset value in the step S3 as A;
the analysis module sets the actual soil treatment numerical value of the preset detection point position after the treatment in the step S3 as A1;
the analysis module sets the actual soil treatment value of the preset detection point position before treatment in the step S3 as A2;
the analysis module sets the soil treatment preset numerical value in the step S7 as B;
the analysis module sets the governing error parameter of the step S4 as X,
；
the analysis module sets the concentration of the chemical agent in the soil improvement plan used in the step S3 as a and the quantity as b, and sets the concentration of the chemical agent in the soil improvement plan used in the step S7 as the concentration a of the chemical agent in the soil improvement plan used in the step S3, so that the quantity of the chemical agent in the soil improvement plan obtained in the step S7 is corrected to be a
The amount of chemical agent in the soil treatment scheme obtained in the step S8 is
；
In the step S9, the analysis module compares the soil improvement actual value after the soil improvement of the step S8 with the soil improvement preset value, calculates a difference between the soil improvement actual value after the soil improvement of the step S8 and the soil improvement preset value to obtain a soil improvement error value of the step S9, calculates a percentage of the soil improvement error value of the step S9 to the soil improvement preset value after the soil improvement of the step S8 to obtain a soil improvement error parameter of the step S9, calculates a percentage of the soil improvement error value of the step S9 and a percentage of the soil improvement error value of the step S4 to the soil improvement actual value of the preset detection point before the soil improvement of the step S8 and the soil improvement actual value of the preset detection point before the soil improvement of the step S3, and calculates an error tendency parameter of the step S9 according to the error percentages;
in the step S10, the analysis module determines whether the soil treatment has reached a preset treatment effect according to the treatment error value in the step S9, the analysis module sets the treatment error value in the step S9 to e,
when e is less than or equal to 0, the analysis module judges that the soil treatment of the preset area reaches the preset treatment effect at the moment, and the soil treatment process is finished;
when e is larger than 0, the analysis module judges that the soil treatment in the preset area does not reach the preset treatment effect at the moment, the soil treatment process is not finished, the analysis module utilizes the treatment error trend parameter of the step S9 to re-optimize the soil treatment scheme in the preset area of the step S8, and the treatment error parameter of the step S4 in the step S8 is replaced by the treatment error parameter of the step S9;
if the determination result of the analysis module is that the soil treatment process is not finished yet, the analysis module determines that the step S6 is returned to and executed to the step S10 after the step S10 is executed, until the determination result of the analysis module is that the soil treatment process is finished.
2. A contaminated soil remediation system based on the method of claim 1, comprising a detection module, an analysis module, a background module, wherein,
the detection module is provided with a soil pH value detection unit and a soil heavy metal detection unit, and is used for detecting the pH value and heavy metal components of soil in the preset area according to preset detection points to determine the area pollution level;
the analysis module is used for obtaining a current soil pH value parameter and a soil heavy metal component parameter according to the soil pH value and the soil heavy metal component detected by the detection module, and judging which treatment scheme and chemical preparation are used according to the current soil pH value parameter and the soil heavy metal component parameter;
the analysis module judges which treatment scheme and chemical agent are used again for the preset area according to which treatment scheme and chemical agent are used in the preset area, and corrects the currently used treatment scheme and chemical agent quantity according to the judgment parameters of the previous treatment result;
the background module is used for storing the background value of the soil environment of the preset area and the soil treatment scheme of the preset area, the soil treatment scheme of the preset area comprises a soil acid-base conditioner, a soil heavy metal curing agent, a soil conditioner and a soil biological activity repairing agent, wherein,
the soil acid-base conditioner comprises an acid soil conditioner and an alkaline soil conditioner;
the soil heavy metal curing agent comprises a silicon-calcium substance, a phosphorus-containing material, an organic material, a clay mineral, a metal and metal oxide and biochar;
the soil conditioner comprises a mineral soil conditioner, a natural polymer soil conditioner, a semi-synthetic water-soluble polymer soil conditioner, a synthetic polymer soil conditioner and a beneficial microbial preparation soil conditioner;
the soil bioactive repairing agent comprises an in-situ microorganism repairing agent and an ectopic microorganism repairing agent.
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