Integrated soil reclamation system and method

Abstract

The application belongs to the technical field of environmental pollution remediation, and particularly relates to an integrated soil reuse remediation system and a method thereof, wherein the system comprises a contaminated soil transportation monitoring unit, a contaminated soil division detection acquisition unit, a remediation scheme intelligent design unit, a remediation treatment monitoring unit and a centralized disposal center supervision end; the application shortens the contaminated soil remediation period through off-site centralized disposal of contaminated soil, temporarily stores the contaminated soil in different zones according to the division information of the contaminated soil after the contaminated soil is transported to the off-site centralized disposal center, generates a corresponding soil remediation scheme based on soil detection information and executes a remediation process, and after the remediated soil is transported to a detection area and passes self-inspection and acceptance, the soil is used for resource utilization, which significantly improves the collaborative disposal capacity of contaminated soil, and the soil remediation process is effectively monitored and managed through the remediation treatment monitoring unit, which significantly reduces the supervision difficulty of management personnel and ensures that the remediation process is safely and stably performed.

Description

Technical Field

[0001] This invention relates to the field of environmental pollution remediation technology, specifically an integrated soil reuse remediation system and method. Background Technology

[0002] With the continuous development of urban industry, the stock of polluted sites in cities is constantly increasing. Due to the increasing scarcity of urban land resources, these polluted sites have an urgent need for redevelopment and utilization as urban renovation work progresses. In the face of the complex situation of soil pollution prevention and control, it is necessary to promptly promote various soil pollution prevention and control measures to release land and ensure the safety of the living environment.

[0003] Currently, traditional remediation models generally adopt on-site remediation, which is not conducive to shortening the remediation cycle of contaminated soil and quickly releasing the land. It is also difficult to specifically store and remediate contaminated soil and effectively monitor and control the remediation process. This makes it difficult to reduce the supervision difficulty for management personnel and ensure the safe, stable and efficient remediation process. Furthermore, the level of intelligence is low.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated soil reuse and remediation system and method, which solves the problems of existing technologies that generally adopt on-site remediation mode, which is not conducive to shortening the remediation cycle of contaminated soil and rapidly releasing the land, and is difficult to target the temporary storage and remediation of contaminated soil and achieve effective monitoring and control of the remediation process, which is not conducive to reducing the difficulty of supervision and ensuring the stable, safe and efficient remediation process.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An integrated soil reuse and remediation system includes a contaminated soil transportation monitoring unit, a contaminated soil classification and detection unit, a remediation scheme intelligent design unit, a remediation treatment monitoring unit, and a centralized treatment center monitoring terminal. After the soil from the contaminated site is excavated, it is transported to a centralized treatment center in another location by a qualified transportation company. The contaminated soil transportation monitoring unit monitors the transportation process of the vehicles, identifies transportation anomalies, and sends the information to the centralized treatment center monitoring terminal. The centralized treatment center monitoring terminal displays the transportation anomalies and issues warnings.

[0008] After the contaminated soil is transported to the off-site centralized treatment center, the contaminated soil classification and detection acquisition unit obtains the classification information and soil testing information of the contaminated soil, temporarily stores it in different areas according to the classification information of the contaminated soil, and sends the acquired soil testing information to the intelligent design unit of the remediation plan and the monitoring terminal of the centralized treatment center.

[0009] The intelligent design unit for remediation schemes generates corresponding soil remediation schemes based on soil testing information. According to the soil remediation schemes, the contaminated soil is transported to thermal desorption, solidification and stabilization, or leaching workshops for treatment. The remediated soil is then transferred to the inspection area, and after self-inspection and acceptance, it is utilized as a resource. The remediation treatment monitoring unit monitors the soil remediation process at the off-site centralized treatment center and takes simultaneous measures for dust, volatile pollutant control, rainwater and sewage separation, and pile stability monitoring.

[0010] Furthermore, after the contaminated soil is transported to the off-site centralized treatment center, the degree of contamination is classified, and the contaminated soil is divided into core area off-site contaminated soil, transition area off-site contaminated soil, or edge area off-site contaminated soil.

[0011] Furthermore, comprehensive testing is conducted on contaminated soil. The testing collects information on the heavy metal content, types and concentrations of organic matter, as well as physical properties of the soil, including pH, humidity, and porosity. The information on the classification of contaminated soil and the soil testing information are transmitted in real time to the contaminated soil classification and testing acquisition unit.

[0012] Furthermore, the off-site centralized treatment center uses thermal desorption, solidification and stabilization, and leaching technologies to remediate contaminated soil. Among them, thermal desorption technology is used to treat organic contaminated soil and organic-heavy metal complex contaminated soil. The off-site centralized treatment center utilizes biogas resources from landfills, using biogas as a heat source for thermal desorption. It also has an exhaust gas treatment system and online monitoring and uploading equipment installed at the thermal desorption exhaust gas emission outlet. The exhaust gas treatment system includes a secondary combustion chamber, SNCR denitrification, quench tower, cyclone dust collector, activated carbon adsorption, bag filter dust collector, and desulfurization tower.

[0013] Solidification and stabilization technology is used to treat heavy metal contaminated soil. The agent is added and crushed and mixed by ALLU bucket and integrated machine. The treated soil is transferred to the inspection area for curing and inspection. After acceptance, the soil is reused as interlayer soil in fly ash landfill operation.

[0014] The leaching technology is used to treat sandy soil containing heavy metals. The heavy metals are physically or chemically desorbed by a cylindrical scrubber and a particle size separator and then enter the mud. The mud is dewatered, and the wastewater generated is treated and recycled. The mud cake containing heavy metals enters the solidification and stabilization system for further treatment.

[0015] Furthermore, the specific analysis process of the contaminated soil transport monitoring unit is as follows:

[0016] The real-time load mass of the corresponding transport vehicle is collected and marked as the load detection value. The difference between the load weight of the contaminated soil and the load detection value is marked as the soil transport leakage value. The soil transport leakage value is compared with the preset soil transport leakage threshold. If the soil transport leakage value exceeds the preset soil transport leakage threshold, a transport leakage alarm signal is generated.

[0017] In addition, the system obtains the pre-set transportation route and marks it as the standard route, collects the actual transportation trajectory of the corresponding transportation vehicle within a unit time, compares the actual transportation trajectory with the standard route, collects the percentage of the path length of the corresponding transportation vehicle deviating from the standard route within a unit time and marks it as the contaminated soil deviation value, and collects the number of times the corresponding transportation vehicle deviates from the standard route and the duration of the path deviation process within a unit time and marks them as the contaminated soil deviation frequency and contaminated soil deviation duration.

[0018] The risk value of the transportation route is calculated by weighting and summing the contaminated soil deviation value, the frequency of contaminated soil deviation, and the duration of contaminated soil deviation. The risk value of the transportation route is then compared with the preset risk threshold of the transportation route. If the risk value of the transportation route exceeds the preset risk threshold of the transportation route, a route execution alarm signal is generated.

[0019] Furthermore, the remediation and treatment monitoring unit achieves orderly detection and emission control in dust and volatile pollutant prevention and control, and rainwater and sewage separation. It also achieves classified and refined management in pile stability monitoring. In addition, it uses remediation and treatment monitoring and early warning analysis to determine whether a remediation alarm signal is generated. When a remediation alarm signal is generated, it is sent to the monitoring terminal of the centralized treatment center. When the monitoring terminal of the centralized treatment center receives the remediation alarm signal, it issues a corresponding early warning.

[0020] Furthermore, the specific analysis process for repairing and handling monitoring and early warning analysis is as follows:

[0021] The system monitors the air environment of the area where the off-site centralized treatment center is located, as well as the wastewater discharged by the center. Real-time concentrations of various pollutants in the air and wastewater are collected at the corresponding monitoring points. The real-time concentrations of the pollutants are compared with corresponding preset concentration thresholds. If the real-time concentration exceeds the preset threshold, the pollutant is marked as a hazardous object. If hazardous objects are found in the air environment or wastewater discharged by the off-site centralized treatment center, a remediation alarm signal is generated.

[0022] Furthermore, the repair and processing monitoring unit communicates with the control and decision-making unit. The repair and processing monitoring unit sends repair alarm signals to the control and decision-making unit. The control and decision-making unit sets a decision cycle of duration N1 and traces the operation status of the remote centralized processing center within the decision cycle. Through analysis, it determines whether a control enhancement signal is generated. When a control enhancement signal is generated, it is sent to the monitoring terminal of the centralized processing center. When the monitoring terminal of the centralized processing center receives the control enhancement signal, it issues a corresponding warning.

[0023] Furthermore, the specific analysis process for the control and management decision-making unit includes:

[0024] The number of times a remediation alarm signal is generated within the decision-making cycle is obtained and marked as a processing control alarm value. When the corresponding contaminated soil is judged to be unqualified after self-inspection and acceptance after completion of remediation, a remediation anomaly symbol XP-1 is assigned. The number of times the remediation anomaly symbol XP-1 is assigned within the decision-making cycle is obtained and marked as a soil remediation anomaly detection value. The processing control alarm value and the soil remediation anomaly detection value are compared with the preset processing control alarm threshold and the preset soil remediation anomaly detection threshold respectively. If the processing control alarm value or the soil remediation anomaly detection value exceeds the corresponding preset threshold, a control enhancement signal is generated.

[0025] Furthermore, if the processing control alarm value and the soil remediation anomaly value do not exceed the corresponding preset threshold, then all remediation equipment for contaminated soil remediation in the off-site centralized treatment center is obtained, and the corresponding remediation equipment is marked as i, where i is a natural number greater than 1.

[0026] All moments during which the repair equipment i is inspected and maintained during the detection period are collected. The time difference between two adjacent inspection and maintenance moments is calculated to obtain the characteristic duration. The characteristic duration is compared with the corresponding preset characteristic duration threshold. If the characteristic duration exceeds the preset characteristic duration threshold, the corresponding characteristic duration is marked as abnormal inspection duration.

[0027] The number of abnormal detection durations corresponding to repair device i within the decision period is obtained and marked as abnormal detection time frequency value. The total number of times repair device i fails within the decision period is marked as period obstacle value. The average time for fault repair of repair device i within the decision period is marked as obstacle removal value.

[0028] The equipment management analysis value is calculated by weighting and summing the abnormal detection frequency value, periodic obstacle value, and obstacle removal value. The equipment management analysis value is then compared with the corresponding preset equipment management analysis threshold. If the equipment management analysis value exceeds the preset equipment management analysis threshold, the repaired equipment i is marked as a management alarm device. The proportion of management alarm devices is obtained and marked as management alarm detection value. The management alarm detection value is then compared with the preset management alarm detection threshold. If the management alarm detection value exceeds the preset management alarm detection threshold, a control enhancement signal is generated.

[0029] If the management alarm detection value does not exceed the preset management alarm detection threshold, the remediation control tracking value is calculated by weighting and summing the processing control alarm value, soil remediation anomaly detection value, and management alarm detection value. The remediation control tracking value is then compared with the preset remediation control tracking threshold. If the remediation control tracking value exceeds the preset remediation control tracking threshold, a control enhancement signal is generated.

[0030] Furthermore, this invention also proposes an integrated soil reuse and remediation method, comprising the following steps:

[0031] Step 1: Preliminary Preparations;

[0032] Step 2: Receiving the soil;

[0033] Step 3: Temporarily store data in partitions;

[0034] Step 4: Repair and treatment;

[0035] Step 5: Awaiting inspection and acceptance;

[0036] Step Six: Resource Utilization.

[0037] Compared with the prior art, the beneficial effects of the present invention are:

[0038] 1. In this invention, the remediation cycle of contaminated soil is shortened by off-site centralized treatment. After the contaminated soil is transported to the off-site centralized treatment center, it is temporarily stored in zones according to the classification information of the contaminated soil. Based on the soil testing information, a corresponding soil remediation plan is generated and the remediation process is executed. The remediated soil is transferred to the inspection area and is utilized for resource utilization after passing self-inspection and acceptance. This significantly improves the collaborative treatment capability of contaminated soil. Furthermore, the soil remediation process is effectively monitored and managed by the remediation treatment monitoring unit, which significantly reduces the supervision difficulty for management personnel and ensures the safe and stable progress of the remediation process.

[0039] 2. In this invention, the operation status of the off-site centralized treatment center within the decision-making cycle is traced by the control and decision-making unit. The analysis is used to determine whether a control enhancement signal is generated. When a control enhancement signal is generated, the control plan of the off-site centralized treatment center is reasonably adjusted, and the subsequent monitoring and control of the off-site centralized treatment center is strengthened in a timely manner to ensure the safe, stable and efficient operation of the off-site centralized treatment center. This is conducive to improving the treatment effect and efficiency of contaminated soil and has a high level of intelligence. Attached Figure Description

[0040] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings;

[0041] Figure 1 This is a system block diagram of Embodiment 1 of the present invention;

[0042] Figure 2 This is a system block diagram of Embodiment 2 of the present invention;

[0043] Figure 3 This is a flowchart of the method in Embodiment 3 of the present invention. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example 1: As Figure 1 As shown, the present invention proposes an integrated soil reuse and remediation system, which includes a contaminated soil transportation monitoring unit, a contaminated soil classification and detection acquisition unit, a remediation scheme intelligent design unit, a remediation treatment monitoring unit, and a centralized treatment center monitoring terminal.

[0046] After the soil from the contaminated site is excavated, it is transported to an off-site centralized treatment center by qualified transportation companies. This off-site centralized treatment of contaminated soil effectively avoids the waste of energy and resources and repetitive social investment caused by the repeated construction, commissioning, and dismantling of on-site remediation facilities. It also greatly shortens the contaminated soil remediation cycle. Furthermore, by adopting advanced pollution control technologies and centralized real-time monitoring, pollution emissions are transformed from dispersed to centralized and from temporary to fixed, significantly improving the capacity for collaborative treatment of contaminated soil. This achieves an intensive and efficient remediation process with centralized and controllable environmental risks.

[0047] The off-site centralized treatment center assumes the primary responsibility for soil pollution remediation. Through unified supervision and standardized management, it ensures that contaminated soil is properly treated and that soil safety in the community is maintained. The project takes advantage of the landfill's superior geographical location, maintains a safe distance from residential areas, and makes full use of existing and newly built pollution prevention and control facilities to ensure the effectiveness of secondary pollution prevention and control. This can effectively mitigate the NIMBY (Not In My Backyard) effect of decentralized remediation projects.

[0048] The contaminated soil transportation monitoring unit monitors the transportation process of transport vehicles, identifies transportation anomalies, and sends the information to the centralized treatment center's monitoring terminal. The centralized treatment center's monitoring terminal displays the transportation anomalies and issues warnings to remind management personnel to promptly contact the responsible personnel of the corresponding transport vehicles to ensure the smooth transportation of contaminated soil to the off-site centralized treatment center, thus achieving effective monitoring and management of the contaminated soil transportation process. The specific analysis process of the contaminated soil transportation monitoring unit is as follows:

[0049] The real-time load mass of the corresponding transport vehicle is collected and marked as the load detection value. The difference between the load weight of the contaminated soil and the load detection value is marked as the soil transport leakage value. The soil transport leakage value is compared with the preset soil transport leakage threshold. If the soil transport leakage value exceeds the preset soil transport leakage threshold, it indicates that there is a high probability of contaminated soil leakage during transportation, and a transport leakage alarm signal is generated.

[0050] In addition, the system obtains the pre-set transportation route and marks it as the standard route, collects the actual transportation trajectory of the corresponding transportation vehicle within a unit time, compares the actual transportation trajectory with the standard route, collects the percentage of the path length of the corresponding transportation vehicle deviating from the standard route within a unit time and marks it as the contaminated soil deviation value, and collects the number of times the corresponding transportation vehicle deviates from the standard route and the duration of the path deviation process within a unit time and marks them as the contaminated soil deviation frequency and contaminated soil deviation duration.

[0051] The risk value of a transportation route is calculated by weighting and summing the deviation value of contaminated soil, the frequency of contaminated soil transport deviation, and the duration of contaminated soil transport deviation. Specifically, each of these factors is assigned a pre-set weight coefficient. The deviation value, frequency, and duration of contaminated soil transport deviation are then multiplied by their respective pre-set weight coefficients, and the sum of these three products is marked as the risk value of the transportation route. Furthermore, the larger the risk value of the transportation route, the more suspicious the current transportation route execution status of the corresponding transportation vehicle is.

[0052] The risk value of the transportation route is compared with the preset risk threshold of the transportation route. If the risk value of the transportation route exceeds the preset risk threshold, it indicates that the current transportation route execution status of the corresponding transportation vehicle is suspicious, and a route execution alarm signal is generated.

[0053] After the contaminated soil is transported to the off-site centralized treatment center, the degree of contamination is classified. Based on the pollution status revealed by professional testing, the contaminated soil is divided into core area off-site contaminated soil, transition area off-site contaminated soil, or edge area off-site contaminated soil. Furthermore, comprehensive testing is conducted on the contaminated soil, which collects data on the heavy metal content, types and concentrations of organic matter, as well as various physical properties of the soil, including pH, humidity, and porosity.

[0054] The contaminated soil classification and detection acquisition unit obtains the classification information and soil detection information of the contaminated soil, and temporarily stores them in different areas according to the classification information. It also sends the acquired soil detection information to the intelligent design unit for remediation schemes and the monitoring terminal of the centralized treatment center. This not only makes it convenient for managers to have a detailed understanding of the pollution information of the received contaminated soil, but also provides data support for the remediation scheme design and generation process of the intelligent design unit for remediation schemes, ensuring the scientific nature of the generated schemes.

[0055] The intelligent design unit for remediation schemes generates corresponding soil remediation plans based on soil testing information. According to the soil remediation plan, the contaminated soil is transported to the thermal desorption, solidification and stabilization, or leaching workshops for treatment. This means that targeted remediation treatments are carried out for different pollution conditions under various circumstances. The remediated soil is transferred to the inspection area. After self-inspection and acceptance, it is used for resource utilization. This can organically combine the soil that has been remediated to meet the standards with the soil needs of landfill operation. It can be used for resource utilization purposes such as operating soil of landfill, ballast soil of cover membrane, and interlayer soil of fly ash, which significantly improves the co-processing capacity of contaminated soil.

[0056] Specifically, the off-site centralized treatment center uses thermal desorption, solidification and stabilization, and leaching technologies to remediate contaminated soil. Among these, thermal desorption technology is mainly used to treat organic contaminated soil and organic-heavy metal complex contaminated soil. The off-site centralized treatment center utilizes biogas resources from landfills, using biogas as a heat source for thermal desorption to achieve the effect of treating waste with waste. It is also equipped with a very complete exhaust gas treatment system, including a secondary combustion chamber, SNCR denitrification, quench tower, cyclone dust collector, activated carbon adsorption, bag filter dust collector, and desulfurization tower, etc., to ensure that the exhaust gas meets emission standards. Online monitoring and uploading equipment is installed at the thermal desorption exhaust gas emission outlet, which is connected to the national platform (municipal pollution source automatic monitoring system, key pollutant discharge unit automatic monitoring and basic database system) in real time. This allows ecological and environmental authorities at all levels to monitor the emission compliance status in real time, as well as the continuity and stability of on-site operations.

[0057] Solidification and stabilization technology is mainly used to treat soil contaminated with heavy metals. It involves adding reagents and crushing and mixing the soil using an ALLU bucket and integrated machine. The treated soil is then transported to an inspection area for curing and inspection. Once the soil passes inspection, it is reused as interlayer soil in fly ash landfill operations. Leaching technology is mainly used to treat sandy soils contaminated with heavy metals. It involves using a cylindrical scrubbing machine and a particle size separator to physically or chemically desorb heavy metals and introduce them into the slurry. The slurry is then dewatered, and the resulting wastewater is treated and recycled, saving water resources. The heavy metal-containing mud cake is then processed in the solidification and stabilization system.

[0058] The remediation and treatment monitoring unit monitors the soil remediation process at the off-site centralized treatment center and simultaneously handles dust, volatile pollutant control, rainwater and sewage separation, and pile stability monitoring. In other words, the remediation and treatment monitoring unit achieves orderly detection and emission in dust, volatile pollutant control, and rainwater and sewage separation, and achieves classified and refined management in pile stability monitoring.

[0059] Furthermore, the system uses repair processing monitoring and early warning analysis to determine whether a repair alarm signal is generated. When a repair alarm signal is generated, it is sent to the monitoring terminal of the centralized treatment center. Upon receiving the repair alarm signal, the monitoring terminal of the centralized treatment center issues a corresponding early warning to remind management personnel to take timely countermeasures and avoid adverse effects on the environment of the remote centralized treatment center. This significantly reduces the supervision difficulty for management personnel and demonstrates a high level of intelligence. The specific analysis process of repair processing monitoring and early warning analysis is as follows:

[0060] The system monitors the air environment of the area where the off-site centralized treatment center is located, as well as the wastewater discharged by the center. Real-time concentrations of various pollutants in the air and wastewater are collected at the corresponding monitoring points. The real-time concentrations of the pollutants are compared with corresponding preset concentration thresholds. If the real-time concentration exceeds the preset threshold, the pollutant is marked as a hazardous object. If hazardous objects are found in the air environment or wastewater discharged by the off-site centralized treatment center, a remediation alarm signal is generated.

[0061] The technical solution of this invention involves temporarily storing contaminated soil according to its pollutant type and location after it arrives at the site. Then, it is transported to thermal desorption, solidification and stabilization, or leaching workshops for treatment according to the remediation plan. The remediated soil is then transferred to an inspection area, where it undergoes self-inspection and acceptance before being utilized for resource recovery. This achieves targeted removal of pollutants and reconstruction of the soil micro-ecology, adapting to complex site conditions and providing an intelligent solution for the resource recovery of contaminated soil from other locations. Furthermore, it allows for the rational utilization of the remediated soil, adapting different types of soil to the required land use, thus realizing the resource recovery of contaminated soil from other locations and reducing the need for new soil resources.

[0062] Furthermore, the off-site centralized disposal center aims to achieve network interconnection, resource integration, data sharing, intelligent control, and visualized management. It has developed and constructed a management information system, supported by cutting-edge technologies such as the Internet of Things, cloud computing, and big data. By using digital means, through key functions such as transportation route deviation warnings, transportation video monitoring, and online pollution prevention monitoring, it ensures that the entire process of contaminated soil from off-site transportation to centralized disposal and resource utilization is traceable, information is analyzable, progress is controllable, and risks are predictable, effectively guaranteeing environmental safety and efficient disposal.

[0063] Example 2: Figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the repair processing monitoring unit is connected to the control and management decision unit. The repair processing monitoring unit sends the repair alarm signal to the control and management decision unit. The control and management decision unit is used to set a decision period of N1, preferably thirty days. The operation status of the remote centralized treatment center within the decision period is traced, and the analysis is used to determine whether to generate a control enhancement signal.

[0064] When an enhanced control signal is generated, it is sent to the monitoring terminal of the centralized treatment center. Upon receiving the enhanced control signal, the monitoring terminal of the centralized treatment center issues a corresponding early warning to remind managers to reasonably adjust the control plan of the off-site centralized treatment center, promptly strengthen the follow-up monitoring and control of the off-site centralized treatment center, ensure the safe, stable and efficient operation of the off-site centralized treatment center, and improve the treatment effect and efficiency of contaminated soil. The specific analysis process of the control decision unit is as follows:

[0065] The number of times the remediation alarm signal is generated within the decision cycle is obtained and marked as the processing control alarm value. When the corresponding contaminated soil is judged to be unqualified after self-inspection and acceptance after remediation (i.e. the corresponding contaminated soil fails to meet the test after remediation), the remediation anomaly symbol XP-1 is assigned. The number of times the remediation anomaly symbol XP-1 is assigned within the decision cycle is obtained and marked as the soil remediation anomaly value.

[0066] The processing control alarm value and soil remediation anomaly detection value are compared with the preset processing control alarm threshold and preset soil remediation anomaly detection threshold respectively. If the processing control alarm value or soil remediation anomaly detection value exceeds the corresponding preset threshold, it indicates that the soil remediation management status of the off-site centralized treatment center is not good during the decision-making cycle, and a control enhancement signal is generated.

[0067] Furthermore, if the control alarm value and the soil remediation detection value do not exceed the corresponding preset threshold, then all remediation equipment (i.e. all relevant equipment in the thermal desorption, solidification stabilization or rinsing workshops) used for contaminated soil remediation in the off-site centralized treatment center will be obtained, and the corresponding remediation equipment will be marked as i, where i is a natural number greater than 1.

[0068] All moments during which the repair equipment i was inspected and maintained during the inspection period were collected. The time difference between two adjacent inspection and maintenance moments was calculated to obtain the characteristic duration. The characteristic duration was compared with the corresponding preset characteristic duration threshold. If the characteristic duration exceeded the preset characteristic duration threshold, it indicated that the interval between the corresponding inspection and maintenance was too long. The corresponding characteristic duration was then marked as abnormal inspection duration.

[0069] The number of abnormal detection durations corresponding to repair device i within the decision period is obtained and marked as abnormal detection time frequency value. The total number of times repair device i fails within the decision period is marked as period obstacle value. The average time for fault repair of repair device i within the decision period is marked as obstacle removal value.

[0070] The equipment management analysis value is obtained by weighted summation of the abnormal inspection frequency value, periodic obstacle value, and obstacle removal effectiveness value. Specifically, each of the abnormal inspection frequency value, periodic obstacle value, and obstacle removal effectiveness value is assigned a corresponding preset weight coefficient beforehand. The abnormal inspection frequency value, periodic obstacle value, and obstacle removal effectiveness value are then multiplied by their respective preset weight coefficients, and the sum of the three products is marked as the equipment management analysis value. Furthermore, the larger the value of the equipment management analysis value, the worse the management status of the repair equipment i within the decision-making cycle.

[0071] The equipment management analysis value is compared with the corresponding preset equipment management analysis threshold. If the equipment management analysis value exceeds the preset equipment management analysis threshold, it indicates that the management status of repair equipment i is poor during the decision period, and repair equipment i is marked as a management alarm device. The percentage of management alarm devices is obtained and marked as a management alarm detection value. The management alarm detection value is compared with the preset management alarm detection threshold. If the management alarm detection value exceeds the preset management alarm detection threshold, it indicates that the overall equipment management performance is poor during the decision period, and a control enhancement signal is generated.

[0072] If the management alarm detection value does not exceed the preset management alarm detection threshold, the remediation control tracking value is obtained by weighted summation of the processing control alarm value, soil remediation anomaly detection value, and management alarm detection value. That is, the processing control alarm value, soil remediation anomaly detection value, and management alarm detection value are assigned corresponding preset weight coefficients in advance, and the processing control alarm value, soil remediation anomaly detection value, and management alarm detection value are multiplied by the corresponding preset weight coefficients respectively, and the sum of the three sets of product results is marked as the remediation control tracking value.

[0073] It should be noted that the higher the value of the repair control tracking value, the worse the overall performance of the operation and management of the off-site centralized treatment center during the decision-making cycle. The repair control tracking value is compared with the preset repair control tracking threshold. If the repair control tracking value exceeds the preset repair control tracking threshold, it indicates that the overall performance of the operation and management of the off-site centralized treatment center during the decision-making cycle is poor and it is necessary to strengthen subsequent monitoring and control in a timely manner, thus generating a control enhancement signal.

[0074] Example 3: Figure 3 As shown, the difference between this embodiment and Embodiments 1 and 2 is that the integrated soil reuse and remediation method proposed in this invention includes the following steps:

[0075] Step 1: Preliminary Preparations;

[0076] Step 2: Receiving the soil;

[0077] Step 3: Temporarily store data in partitions;

[0078] Step 4: Repair and treatment;

[0079] Step 5: Awaiting inspection and acceptance;

[0080] Step Six: Resource Utilization.

[0081] The working principle of this invention is as follows: In use, soil from contaminated sites is transported to an off-site centralized treatment center via transport vehicles. This effectively avoids the waste of energy and resources and repetitive social investment caused by the repeated construction, commissioning, and dismantling of on-site remediation facilities, significantly shortening the contaminated soil remediation cycle. The contaminated soil transportation monitoring unit monitors the transportation process and identifies any anomalies to ensure smooth transport of the contaminated soil. After the contaminated soil is transported to the off-site centralized treatment center, it is temporarily stored in designated areas according to the contaminated soil classification information. The intelligent remediation plan design unit generates corresponding soil remediation plans based on soil testing information, and the contaminated soil is then disposed of according to the remediation plan. Soil is transported to thermal desorption, solidification and stabilization, or leaching workshops for treatment. After remediation, the soil is transferred to the inspection area and, after passing self-inspection and acceptance, is utilized for resource recovery. This significantly improves the co-processing capacity of contaminated soil. Furthermore, the remediation treatment monitoring unit simultaneously monitors dust, volatile pollutant control, rainwater and sewage separation, and pile stability at the off-site centralized treatment center. The remediation treatment monitoring and early warning analysis determines whether a remediation alarm signal is generated. When a remediation alarm signal is generated, it alerts management personnel to take timely countermeasures to avoid adverse impacts on the environment of the off-site centralized treatment center and effectively reduces the supervision difficulty for management personnel.

[0082] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, enabling those skilled in the art to better understand and utilize it. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An integrated soil reuse and remediation system, characterized in that, It includes a contaminated soil transportation monitoring unit, a contaminated soil classification and detection unit, a remediation plan intelligent design unit, a remediation treatment monitoring unit, and a centralized treatment center monitoring terminal. After the soil from the contaminated site is excavated, it is transported to a centralized treatment center in another location by a qualified transportation company. The contaminated soil transportation monitoring unit monitors the transportation process of the vehicles, identifies transportation anomalies, and sends them to the centralized treatment center monitoring terminal. The centralized treatment center monitoring terminal displays the transportation anomalies and issues warnings. After the contaminated soil is transported to the off-site centralized treatment center, it is temporarily stored in different zones according to the classification information of the contaminated soil. The contaminated soil classification and detection acquisition unit sends the acquired soil detection information to the intelligent design unit of the remediation plan and the monitoring terminal of the centralized treatment center. The intelligent design unit of the remediation plan generates corresponding soil remediation plans based on soil testing information, treats the contaminated soil according to the soil remediation plan, and transports the remediated soil to the inspection area. After passing self-inspection and acceptance, the soil is utilized as a resource. The remediation and treatment monitoring unit monitors the soil remediation process at the off-site centralized treatment center and simultaneously addresses dust, volatile pollutant control, rainwater and sewage separation, and pile stability monitoring.

2. The integrated soil reuse and remediation system according to claim 1, characterized in that, After the contaminated soil is transported to the off-site centralized treatment center, the degree of contamination is classified into core area off-site contaminated soil, transition area off-site contaminated soil, or edge area off-site contaminated soil. Comprehensive testing is conducted on the contaminated soil, and the classification information and soil testing information are transmitted in real time to the contaminated soil classification and testing acquisition unit.

3. The integrated soil reuse and remediation system according to claim 1, characterized in that, The off-site centralized treatment center uses thermal desorption, solidification and stabilization, and leaching technologies to remediate contaminated soil. Thermal desorption technology is used to treat organic contaminated soil and organic-heavy metal composite contaminated soil, solidification and stabilization technology is used to treat heavy metal contaminated soil, and leaching technology is used to treat sandy heavy metal soil.

4. The integrated soil reuse and remediation system according to claim 3, characterized in that, The specific analysis process of the contaminated soil transport monitoring unit is as follows: The real-time load mass of the corresponding transport vehicle is collected and marked as the load detection value. The difference between the load weight of the contaminated soil and the load detection value is marked as the soil transport leakage value. If the soil transport leakage value exceeds the preset soil transport leakage threshold, a transport leakage alarm signal is generated. The risk value of the transportation route is calculated by weighting and summing the deviation value of the contaminated soil, the frequency of the contaminated soil deviation, and the duration of the contaminated soil deviation. If the risk value of the transportation route exceeds the preset risk threshold of the transportation route, a route execution alarm signal is generated.

5. The integrated soil reuse and remediation system according to claim 1, characterized in that, The remediation and treatment monitoring unit enables orderly detection and emission control in dust and volatile pollutant prevention and control, and rainwater and sewage separation. It also enables classified and refined management in pile stability monitoring. Furthermore, it uses remediation and treatment monitoring and early warning analysis to determine whether a remediation alarm signal is generated. When a remediation alarm signal is generated, the monitoring terminal of the centralized treatment center issues a corresponding early warning.

6. The integrated soil reuse and remediation system according to claim 5, characterized in that, The specific analysis process for the remediation treatment monitoring and early warning analysis is as follows: the air environment of the area where the off-site centralized treatment center is located is detected, as well as the wastewater discharged by the off-site centralized treatment center is detected. The real-time concentration of the corresponding pollutants is compared with the corresponding preset concentration threshold. If the real-time concentration exceeds the corresponding preset concentration threshold, the corresponding pollutant is marked as a hazardous object. If there are hazardous objects in the air environment or wastewater discharged by the off-site centralized treatment center, a remediation alarm signal is generated.

7. An integrated soil reuse and remediation system according to claim 5, characterized in that, The repair and processing monitoring unit communicates with the control and decision-making unit. The repair and processing monitoring unit sends the repair alarm signal to the control and decision-making unit. The control and decision-making unit sets a decision cycle of duration N1 and traces the operation status of the remote centralized treatment center within the decision cycle. When a control enhancement signal is generated, it is sent to the monitoring terminal of the centralized treatment center.

8. An integrated soil reuse and remediation system according to claim 7, characterized in that, The specific analysis process of the control decision unit is as follows: the number of times the repair alarm signal is generated within the decision period is obtained and marked as the processing control alarm value, and the number of times the repair anomaly symbol XP-1 is assigned within the decision period is obtained and marked as the soil remediation anomaly detection value. If the processing control alarm value or the soil remediation anomaly detection value exceeds the corresponding preset threshold, a control enhancement signal is generated.

9. An integrated soil reuse and remediation system according to claim 8, characterized in that, If neither the control alarm value nor the soil remediation anomaly detection value exceeds the corresponding preset threshold, the percentage of the number of control alarm devices is obtained and marked as the control alarm detection value. If the control alarm detection value exceeds the preset control alarm detection threshold, a control enhancement signal is generated. If the management alarm detection value does not exceed the preset management alarm detection threshold, the remediation control tracking value is calculated by weighting and summing the processing control alarm value, the soil remediation anomaly detection value, and the management alarm detection value. If the remediation control tracking value exceeds the preset remediation control tracking threshold, a control enhancement signal is generated.

10. An integrated method for soil reuse and remediation, characterized in that, The method employs the integrated soil reuse and remediation system as described in any one of claims 1-9.

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