Investigation method for solid waste landfill disposal site

Abstract

SOLUTION: The present invention provides an investigation method for a solid waste landfill disposal site, and belongs to a technical field of the solid waste landfill. The investigation method includes: dividing the solid waste landfill disposal site to obtain a measurement area, a measurement line and a measurement point; determining the presence or absence of the solid waste landfill in the measurement point; and when it is determined that the solid waste landfill exists in the measurement point, calculating a solid waste landfill range in the measuring points to obtain a solid waste landfill amount; and taking the solid waste landfill range, the solid waste landfill amount and a danger identification result as investigation results of the solid waste landfill disposal site.EFFECT: The investigation method for the solid waste landfill disposal site can quickly determine a concrete landfill situation and toxicity of a residual solid waste by solving the problem that the concrete landfill situation and toxicity of the residual solid waste cannot be quickly determined by an existing investigation method of the solid waste landfill disposal site.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the technical field of solid waste landfills, and in particular to the investigation of solid waste landfill sites. Regarding the method. [Background technology]

[0002] The spatial distribution of industrial solid waste dumping and landfilling is highly uncertain and uneven, and generally As they exist for a long period of time, they pose a significant environmental risk. Understanding the extent of these areas and their impact on the surrounding ecological environment is crucial to solving these historical problems. This is the key to addressing this issue scientifically. To address the above solid waste risks, we must address the risk of solid waste in solid waste landfills. Further investigation of the site is required to determine whether any residual solid waste exists. However, existing survey methods for solid waste landfill sites do not allow for the specific location of the remaining solid waste. The status and toxicity cannot be determined rapidly. Summary of the Invention [Problem to be solved by the invention]

[0003] The technical problem to be solved by this invention is that the existing survey methods for solid waste landfill sites are unable to detect the remaining solids. The specific landfill conditions and toxicity of the waste cannot be determined quickly. [Means for solving the problem]

[0004] In order to solve the above problems, the technical solutions of the present invention are as follows: 1. A method for inspecting a solid waste landfill site, comprising: Conduct on-site inspections of solid waste landfill sites and, based on the results of the on-site inspections, Divide the field to obtain a measurement area, and then further divide the measurement area to obtain a measurement line. further dividing the measurement line to obtain measurement points; The measurement line is detected within the measurement area using the transient electromagnetic method or the density electric method, and then the measurement line is If a solid waste landfill is detected, the location of the solid waste landfill will be further identified by ground penetrating radar. Detects the measurement point on the measurement line where a solid waste landfill exists and detects the presence of a solid waste landfill at the measurement point. If so, the solid waste at the measurement point where a solid waste landfill exists due to infill drilling Defining a landfill area; Visual geological modeling software was used to create a 3D map of the solid waste landfill area. The amount of solid waste to be landfilled is calculated according to the 3D map. Finally, the area within the solid waste landfill area is calculated. Identify the solid waste hazards, obtain the hazard identification results, and The solid waste landfill area, the amount of solid waste landfilled, and the hazard identification results of the solid waste landfill at the measurement point and a step of obtaining the results of the investigation of the disposal site. In one aspect of the present invention, a method for conducting on-site surveys of a solid waste landfill site includes: Based on the landfill history data and on-site survey of the solid waste landfill, A preliminary determination is made as to whether or not a solid waste landfill exists, and if so, the disposal of the solid waste at a landfill site. Further determination of solid waste landfill location and landfill material type based on site landfill history data Landfill history data is used to identify solid waste that has been found at a solid waste landfill. Includes waste landfill location and solid waste characteristics. In one aspect of the present invention, a method for dividing a solid waste landfill site based on the results of a site survey is provided. In accordance with the landfill history data of the solid waste landfill site and the results of the on-site survey, Determine the area where a solid waste landfill exists, and define the area where a solid waste landfill exists as a solid waste landfill. The measurement area is a landfill disposal site, and the measurement area is divided into equal distances. Finally, an equal distance division is performed on the measurement line to obtain measurement points. In one aspect of the present invention, a measurement point where a solid waste landfill is present due to infill drilling is In the method for defining the area of ​​a solid waste landfill, the presence of a solid waste landfill is detected at the measurement point. If this is detected, continue for 1 m from the measurement point until there is no fill below the infill drilling point. By performing infill drilling in four directions (east, west, north, south) at a distance, the solid waste at the measurement point can be measured. Check the waste landfill area, mark the solid waste landfill layer, and record the mark information of the solid waste landfill layer get. In one aspect of the present invention, the mark information of the solid waste landfill layer is a planar distribution range of the solid waste landfill. information, solid waste landfill thickness information, and solid waste properties of vertical distribution of solid waste landfill The solid waste properties include color, state, and odor, and state includes solid and liquid states. As one aspect of the present invention, Visual geological modeling software was used to create a 3D map of the solid waste landfill area. In the method for forming the solid waste landfill layer, based on the solid waste landfill information and the mark information of the solid waste landfill layer, Create a 3D map of a solid waste landfill using visual geological modeling software The solid waste landfill information includes information on the latitude and longitude of the solid waste landfill area and the ground elevation, In a method for identifying solid waste hazards within a solid waste landfill area, Corrosiveness, reactivity, flammability, leachable toxicity, toxic substance content, and acute toxicity of solid waste in Toxicity is identified, and based on the identification results, it is determined whether the solid waste is a hazardous waste. [Effects of the Invention]

[0005] The beneficial effects of the present invention are as follows: The present invention combines three geophysical detection methods, primarily transient electromagnetic and ground-penetrating radar. , by developing a comprehensive geophysical electromagnetic detection method supplemented by high-density electrical methods. Achieve quick and accurate judgment in case of suspected solid waste landfill. Drilling will provide more information about the extent of the solid waste landfill and provide visual geology Modeling software was used to create a 3D map of the solid waste landfill area, Finally, the calculated amount of solid waste landfilled and the risk identification results are displayed as solid waste. By using the results of the survey as a survey of a waste landfill site, the accuracy of the survey and the reliability of the survey results can be ensured. Protect. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 2 is a distribution diagram of measurement areas at a solid waste landfill site in an embodiment of the present invention. [Figure 2] 1 is a schematic diagram of a DCDTEM-2S towed high-resolution transient electromagnetic system in accordance with an embodiment of the present invention; FIG. [Figure 3] FIG. 1 is a schematic diagram of an EDGMD-1A centralized high-density electrical measurement system in accordance with an embodiment of the present invention. [Figure 4] 1 is an EKKOPRO multi-function geo-radar according to an embodiment of the present invention. [Figure 5] 1 is a field drilling diagram of a solid waste landfill site in accordance with an embodiment of the present invention; [Figure 6] 1 is a diagram showing the distribution of drilling points of a drilling device in a solid waste landfill disposal site according to an embodiment of the present invention; [Figure 7] FIG. 2 is a schematic diagram of the positions of the G1 and G2 measurement lines selected by the high-density electrical method in an embodiment of the present invention. [Figure 8] FIG. 10 is a schematic diagram of an inverted resistivity profile of the measurement line G1 in an embodiment of the present invention. [Figure 9] FIG. 10 is a schematic diagram of an inverted resistivity profile of measurement line G2 in an embodiment of the present invention. [Figure 10] 1 is a profile image of a georadar according to an embodiment of the present invention. [Figure 11] FIG. 10 is an anomalous plan view determined by transient electromagnetic results in an embodiment of the present invention. [Figure 12] 1 is a three-dimensional map of solid waste deposits within a solid waste landfill site in accordance with an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0007] Explanation of terms Transient Electromagnetic Method , a geophysical exploration technique used to detect the distribution of resistivity underground. The transient electromagnetic method utilizes the induction effect to obtain resistivity information of underground rocks and soils. By passing a rapidly changing current through the ground and measuring the induced magnetic field, the resistivity distribution underground can be estimated. do. The High Density Electrical Method is It is a geophysical exploration method used to measure the resistivity distribution underground. Estimate the resistivity characteristics of underground media by placing electrodes and measuring the relationship between current and voltage . Ground Penetrating Radar (GPR) is a highly It is a non-invasive geophysical exploration method that uses high-frequency electromagnetic waves to detect underground material structures and interfaces. By emitting high-frequency electromagnetic waves and receiving echo signals, the position and shape of underground objects can be determined. , and characteristics are obtained.

[0008] The operation and management of landfill sites must comply with environmental regulations to ensure the safety and effectiveness of waste disposal. In addition, solid waste landfill sites must adhere to the following technical standards: Various issues related to solid waste, such as waste management issues, waste leakage issues, gas emissions issues, and land use issues, There is a risk. In order to solve the above problem, the present embodiment Conduct on-site inspections of solid waste landfill sites and, based on the results of the on-site inspections, Divide the field to obtain a measurement area, and then further divide the measurement area to obtain a measurement line. further dividing the measurement line to obtain measurement points; The measurement line is detected within the measurement area using the transient electromagnetic method or the density electric method, and then the measurement line is If a solid waste landfill is detected, the location of the solid waste landfill will be further identified by ground penetrating radar. Detects the measurement point on the measurement line where a solid waste landfill exists and detects the presence of a solid waste landfill at the measurement point. If so, the solid waste at the measurement point where a solid waste landfill exists due to infill drilling Defining a landfill area; Visual geological modeling software was used to create a 3D map of the solid waste landfill area. The amount of solid waste to be landfilled is calculated according to the 3D map. Finally, the area within the solid waste landfill area is calculated. Identify the solid waste hazards, obtain the hazard identification results, and The solid waste landfill area, the amount of solid waste landfilled, and the hazard identification results of the solid waste landfill at the measurement point and (c) obtaining a result of the survey of the landfill site. are. A method for conducting on-site investigation of a solid waste landfill site, comprising: Based on the data and the results of the site survey, determine the area where the solid waste landfill exists and The area where the existence of a solid waste landfill is determined is designated as the measurement area of ​​the solid waste landfill. At the rear, an equal distance division is performed to obtain a measurement line, and finally, an equal distance division is performed on the measurement line. and obtain the measurement points. In the above process, the method of dividing the measurement line and measurement point is a common method in this field. The distance between measurement lines is typically 2 m, and the distance between measurement points is typically 1.5 m. Specifically, in this example, an abandoned chemical factory and its neighboring town in a certain county are Further investigate the risk of solid waste in the area and determine if residual solid waste still exists. The planar distribution range of solid waste and the depth of landfill are accurately identified, and the solid waste burial site is Determine the volume. The types of materials in the above landfills include chemical industry wastewater, household waste and / or slag, or other waste. The specific type of landfill material is determined by the amount of landfill material that is disposed of at the solid waste landfill site. The amount will be determined based on the current landfill situation. In the above method of dividing a solid waste landfill site based on the results of on-site investigation, Based on the landfill history data and the results of on-site investigations, the solid waste landfill will be The location and area of ​​the area are estimated, and according to the estimated location and area of ​​the solid waste landfill area, First, the solid waste landfill site is divided into measurement areas, and then measurement lines are established within the measurement areas. Divide the lines and finally divide the measurement points on the measurement line. Specifically, in this example, a total of seven measurements were taken at an abandoned chemical plant in a town in a certain county. Detect specific areas (collect landfill history data and site reconnaissance) and identify areas where solid waste landfills exist. Seven areas were acquired. The seven areas where solid waste landfills existed were identified as solid waste landfills. There will be seven measurement areas in the branch field. The seven measurement areas are A1 measurement area, A2 measurement area , A3 measurement area, A4 measurement area, A5 measurement area, A6 measurement area, and A7 measurement area The distribution locations of the seven measurement areas are shown in Figure 1. The profile of the ion beam is detected, and a total of 2936 measurement points are used. There are a total of 120 checkpoints in the knowledge profile, and 48 profiles have a total of 276 There is one measurement point and 55 solid waste reaction experiment measurement points. A knowledge profile and 192 measurement points were completed. This refers to the detection surface formed by detecting underground along a fixed line. The geophysical detection methods include transient electromagnetic methods, ground penetrating radar methods, and high density electric methods; Among them, the transient electromagnetic method or high-density electric method is used to detect the measurement line, and the ground penetrating radar The method is used to detect measurement points. In this embodiment, the detection device that realizes the transient electromagnetic method is the DCDTEM-2S towed high-resolution transient electromagnetic detector. As shown in Figure 2, this DCDTEM-2S towed high-resolution transient electromagnetic system The electromagnetic system consists of a transient electromagnetic host, a towed transmit / receive coil, data processing and imaging software. It is composed of software, and the technical indicators are: transmitting current: 10A, transmitting magnetic moment: 400 Am 2 , Off delay <0.8μs (pure resistance), receiving coil effective area: 24m 2 , A / D Conversion: 24-bit, Sampling rate: 2.5MHz, Dynamic acquisition range: 250dB; Fixed mode: point measurement, towed; collection; USB3.0 control and collection. In this embodiment, the detection device for realizing the high density electric method is a high density electric method device, as shown in FIG. As shown in the figure, the high-density electrical measurement device uses the EDGMD-1A centralized high-density electrical measurement system. It is used. In this embodiment, the detection device that realizes the underground radar method is a geo-radar, as shown in FIG. For the georadar, use the EKKO PRO multi-function georadar. The multi-function georadar consists of a host computer, a transmitter, a receiver, and a laptop computer. It consists of a data center, optical cable, antenna, etc. The above geophysical detection methods are used to determine the presence of suspected solid waste landfills at the measurement lines and measurement points. In the method of isolating the high resistivity anomaly, the measurement line was detected by transient electromagnetic method. In this case, it is judged that there is a suspicion of solid waste landfilling on the measurement line, and measurements are taken using the ground-penetrating radar method. If the interface reflection signal is strong and shows typical phase characteristics of the separator, It was determined that the measurement point was suspected to be a solid waste landfill, and the measurement line was detected using a high-density electrical method. If the detection result shows high resistivity, it is determined that the measurement line is suspected to be a solid waste landfill. do. In this embodiment, the criteria for determining high resistivity anomalies using the transient electromagnetic method are as follows: An anomaly is an area underground where the resistivity is abnormally high compared to the surrounding area. High resistivity anomalies refer to high resistivity materials (solid waste landfills) The groundwater content of the waste is likely to be below 1000 m2. Possible causes include special underground geological structures, such as low soil density and low porosity. The detection of high resistivity anomalies is extremely important for mineral exploration and groundwater resource evaluation. It can provide information about the underground structure. In this example, the ground-penetrating radar method was used to detect strong interfacial reflection signals and typical phase characteristics of the separator. The criteria for determining whether the interface reflection signal is strong are as follows: In this method, when an electromagnetic wave encounters an interface between different underground media, a reflected signal is generated. When the reflection coefficient is large or the difference in resistivity between the media is large, the reflected signal becomes relatively strong. These interface reflection signals are typical separations in the GPR profile. Shows body phase characteristics, i.e., appears as a clearer and more independent waveform in the profile diagram In non-destructive testing, the strong interfacial reflection signals and the phase characteristics of the segregated bodies can identify the subsurface structure and Helps detect hidden targets. In this example, the criteria for determining high resistivity by the high density electrical method are as follows: Resistivity is the value of resistivity in a certain area of ​​the underground, that is, the rock in this area, This means that the soil and groundwater have low conductivity. High resistivity characteristics correspond to low resistivity, and low Resistivity usually indicates areas of better conductivity, and areas of high resistivity indicate areas of high resistance underground. The presence of high-yield materials, i.e., solid waste remaining underground at solid waste landfills, It may be the cause. Specifically, in this example, a high-density electrical method is used to assist in understanding the spatial distribution of solid waste. For this purpose, in this example, the G1 measurement was performed based on the high density electrical method, as shown in FIG. The detection profile of the line and G2 measurement line is designed, and both measurement lines are A2 Located within the measurement area, the G1 measurement line overlaps with the transient electromagnetic A2L1 measurement line. Therefore, the G2 measurement line overlaps with the transient electromagnetic A2L4 measurement line. The two-dimensional inverted resistivity profiles of measurement lines G1 and G2 obtained by the high-density electrical method are 8 and 9. From Fig. 8 and 9, it can be seen that the overall voltage of the G1 measurement line and the G2 measurement line The air distributions were found to be similar and corresponded well to the transient electromagnetic detection profiles. The electrical properties within the A2 measurement area show a tendency to decrease vertically, which is consistent with the geological data of the site. According to the data, the shallow part of the site is a fill layer with loose soil and high resistivity. From the data, the high resistivity is within a shallow depth of 4 m and is distributed unevenly, and the thickness and electrical properties There is a big change in gender, and according to actual materials revealed by drilling, this layer The upper part of the measurement line is the fill layer, and all resistivity values ​​exceed 30 Ω·m. Drill holes S126 and S128 are located at 50m and 80m of the profile, respectively, and the contamination depth is The thicknesses are 0.8m to 1.7m (0.9m thick) and 3.8m to 4.2m (0.4m thick), respectively. Based on this, the results of the high-density electrical method were used to determine the G2 measurement line. Due to the volume effect of the DC method, the thickness of the solid waste is interpreted as being thicker than the actual thickness. However, the physical properties of the layer below 5m are relatively uniform and it is presumed to be the original layer. Specifically, in this embodiment, in order to support understanding of the structure of shallow areas (mainly within 5 m), Using the radar method, A1 measurement area, A2 measurement area, A3 measurement area, A4 measurement area , A5 measurement area, A6 measurement area, and A7 measurement area are detected using the ground penetrating radar method. In the A2 measurement area, one anomaly was identified from the A2-1 profile and named YC01. The A2-1 georadar profile image is shown in Figure 10. In the A3 measurement area, Three anomalies were identified from one profile and named YC02-YC04. Three anomalies were identified from the file, named YC05-YC07, and added to the A3-3 profile. One anomaly was identified from the A3-4 profile and named YC08. An abnormality was identified and named YC09. One abnormality was identified from the A3-5 profile and named YC Named 10, one anomaly was identified in the A5-2 profile in the A5 measurement area. We identified one anomaly in the A5-6 profile, named it YC11, and named it YC12. and identified one anomaly in the A5-7 profile, which was named YC14-YC15. In the A6 measurement area, two abnormalities were identified from the A6-1 profile, and the YC1 4-YC15, and two anomalies were identified from the A6-2 profile, and anomaly YC16 A total of 17 geo-radar anomalies were identified, named -YC17, and all anomalies were reflected The signal is strong and shows typical separator phase characteristics. Based on the analysis results of three types of electromagnetic detection data, abnormal distribution and solid waste in this area were identified. The distribution situation can be grasped as a whole. Within the area, the distribution of anomalies exhibits two characteristics: First, anomalies are “low in volume but high in number”; Secondly, the abnormality of solid waste, the former factory area, Many types of abnormalities, such as building foundation residues, contaminated soil, holes, cracks, and household waste, This poses a significant challenge to data processing and interpretation techniques. In the detection area of ​​this embodiment, there are many drilled holes in the vertical direction, and the obtained According to the cores and geological data available, the strata in the measurement area are mainly divided into three layers. The surface layer is a fill layer with high porosity and loose soil, and if the water saturation is low, the resistivity The second layer is a clay layer containing organic matter and highly saturated with water. The third layer is a clay layer containing iron-manganese nodules and rust spots. By comparing the drilling data in the vicinity and its neighboring areas, in this embodiment, the detection results are The electrical properties of the underground profile are essentially consistent with the actual electrical properties of the layers in the data. The separation condition is highly consistent with the lithological interface of the drilled core, therefore The detection results of this embodiment were found to be accurate in the vertical direction. On the plane, the interpretation results from transient electromagnetic detection data, the interpretation results from high density electric method, and the ground According to the geological interpretation results of the radar method, the abnormal areas are mainly A2, A3, A5, and A6 measurement areas, of which A2 and A4 measurement areas were detected. In the process, many chemical solid waste aggregates are detected, and measurement lines are used for high density method and transient electromagnetic method. Comparing the results, the two show a good correspondence, and based on the anomaly distributions of the two methods, Solid waste is estimated to be mainly located in the A2 measurement area. The A4 measurement area is equipped with transient electromagnetic detection. There is only data, and according to the general rule for the A2 measurement area, there is no specific It is speculated that there may be a small amount of suspected landfill waste. The anomalies identified in the A5 measurement area are primarily determined based on ground-penetrating radar. According to the analysis of the anomaly characteristics by the Considering the situation at the site, the remains of the building consist mainly of hardened concrete fragments, stone fragments, rebar, etc. In the A6 measurement area, there is little abnormal exposure, but the core damage caused by drilling is The results showed that contaminants in the A6 measurement area had been mixed into the soil layer, and the abnormality was Since the main layer is contaminated soil, the mixed layer containing contaminants forms an effective reflector. In such areas, interpretation is mainly carried out using transient electromagnetic methods, and A6 It is assumed that the abnormalities in the measurement area are mainly due to contaminated soil. As described above, after analyzing the type of anomaly and the anomaly characteristics of each measurement area, The location of the abnormality in the waste material can be roughly identified (see Figure 11). Of these, the abnormalities in solid waste were mainly concentrated in the A2 measurement area, and the number was large, but the amount was small. In the A4 measurement area, a small amount of solid waste was found on the ground. There is suspicion of a small amount of solid waste landfill. The above-mentioned transient electromagnetic method and density electric method are used to detect the measurement line within the measurement area. If a solid waste landfill is detected on the line, it will be further detected by ground-penetrating radar. The method for detecting the measurement points on the measurement line where the waste landfill exists is as follows. The measurement line is detected within the measurement area using a transient electromagnetic method or a high-density electric method. If there is a high resistivity anomaly or the interface reflection signal is strong and shows typical segregant phase characteristics, the measurement It was determined that there was a solid waste landfill within the line; If it is determined that a solid waste landfill exists within the measurement line, measurements will be taken using the ground-penetrating radar method. Detect the measurement points on the line, and if the detection result shows high resistivity, it means that a solid waste landfill exists at the measurement point. And then we decide. If the presence of a solid waste landfill is detected at the measurement point as described above, a drilling device is used to Use the drilling method to check whether a solid waste landfill exists at the measurement point and confirm The method is as follows: A drilling device is used to drill measurement points; If the structure of the core profile obtained by the sampling does not match, solid waste is This indicates the presence of a landfill, where the drilling depth is 4.5 to 7.5 m. Specifically, in this embodiment, as shown in FIG. 5, an environmentally friendly Geoprobe drilling Drilling and sampling at the Huaihe Chemical Plant and Huaixia Chemical Plant sites using a drilling device The work will be carried out. The distribution of soil and groundwater survey points within the site and the classification of contaminated soil remediation and excavation areas will be carried out. Considering the overall distribution, according to the preliminary work materials, in the investigation stage, the soil and groundwater investigation points and No solid waste was detected at the above locations or in the contaminated soil remediation area. Alternatively, the area is not inspected by selecting a location. The distribution of drilling points of the equipment is shown in Figure 6. According to the actual situation of the drilling work site, A total of 136 soil drilling sites have been completed, with drilling depths ranging from 4.5 to 7.5m. It was. Specifically, in this example, the Fengtai County Huaihe Chemical Plant and the Huaixia Chemical Plant and their immediate surrounding areas A total of 136 locations were drilled and sampled. Based on the texture, color, and smell of the soil, a total of nine drilling sites were identified as solid waste landfills. These drilling sites are located in three areas: Huaihe Chemical Industry Co., Ltd. Concentrated in the slope protection areas immediately surrounding the site, the southwest corner of the Huaihe Chemical Plant, and the east side of the Huaixia Chemical Plant is doing. Here, the mark information of the solid waste landfill layer includes information on the planar distribution range of the solid waste landfill, Solid waste characteristics, including landfill thickness information and vertical distribution of solid waste in the landfill, The state includes color, condition, and odor, and the state includes solid and liquid states. Plane distribution range information refers to the longitude and latitude of the planar distribution of solid waste landfills. Thickness information refers to the vertical start and end depths of a solid waste landfill. The vertical distribution information refers to the types of solid waste corresponding to the vertical direction of the solid waste landfill. vinegar. Visual geological modeling software was used to create a 3D map of the solid waste landfill area. In the above method, the solid waste landfill information and the mark information of the solid waste landfill layer are used. Visual geological modeling software was used to create a 3D map of the solid waste landfill. The solid waste landfill information includes the latitude and longitude of the solid waste landfill area and the ground elevation. nothing. Specifically, in this embodiment, based on the analysis and summary of the geophysical detection results, A2, A The two measurements revealed that solid waste was being dumped in the A4 and A6 measurement areas. Further check whether there are any solid waste landfills in the area, and if so, If so, the extent and amount of solid waste to be disposed of will be further determined. Drilling is carried out using Geoprobe drilling equipment for landfill areas and sites. A total of 12 verification points were set up. As a result of drilling verification, the core profile by drilling A4 and A6 measurement areas Although no solid waste was found in the A2 measurement area, the core drilling The field shows that the mixed fill contains broken masonry from 1.2m to 3.2m above ground level. Some points have a black intermediate layer and are odorless, but the upper layer of the mixed fill in the measurement area The nature of the material is slag, construction materials, and other materials found in the slope protection area immediately surrounding the adjacent Huaihe Chemical Plant. Therefore, the A2 measurement area is similar to the solid waste. It was determined that waste landfills existed, and their properties included slag, construction slag, and mixed soil. do. Solid waste landfill area within the measurement point where solid waste landfill exists due to infill drilling In the above method for determining the presence of a solid waste landfill at the measurement point, Continue eastward at a distance of 1 m from the measurement point until there is no more fill below the fill drilling point. By conducting infill drilling in four directions (north, south, west), the solid waste landfill area within the measurement point was determined. Then, mark the solid waste landfill layer to obtain the mark information of the solid waste landfill layer. The absence of fill below the infill drilling indicates that the core profile structure matches. If the core profile structure matches, the core profile The file is of a single nature, and the core profile contains only soil and no solids. This means that it does not contain waste, i.e., it is buried below the infill drilling point. If the core profile structure is not consistent, the core profile properties will not be consistent. This indicates that the core profile may contain not only soil but also solid waste. This means that there is landfill below the infill drilling point. Infill drilling is a common technique in this field. It can be seen that this is a common technical means in the field. Specifically, in this embodiment, based on the above drilling verification result, By distributing points densely around the points obtained from the above, the landfill area and amount of solid waste can be further estimated. Calculate to. Specifically, in this example, visual geological modeling software is used to visualize solid waste. A method for creating a 3D map of the landfill area and calculating the amount of solid waste landfilled based on the 3D map. The method is as follows: Visual geological modeling software, as shown in Figure 12. Drilling using (EVS:Earth Volumetric Studio) As a result, a 3D map of the ground elevation and solid waste landfill marks is created. A 3D map created by geological modeling software shows an abandoned mine in a town in a certain prefecture. The chemical plant solid waste landfill is mainly located in the slope protection area immediately surrounding the Huaihe Chemical Plant, The area is concentrated in the southwest corner of the Hehe Chemical Plant and the east side of the Huaixia Chemical Plant. The 3D map calculated by the Ring software shows that the total amount of solid waste going to landfills is 26 6.9m 3 (287.2t), and the landfill status of each area is as shown in Table 2. The visual geological modeling software described above allows for the 3D mapping of solid waste. Calculating the total landfill volume is a common method in this technical field for calculating the total landfill volume of solid waste. This is a typical method.

[0009] TIFF2025163641000002.tif104162

[0010] The above method for identifying the hazards of solid waste within the scope of solid waste landfill is as follows: Acquire solid waste within the scope of solid waste landfill and analyze the corrosive, reactive, flammable, and leachable properties of the solid waste. Identify the toxicity, toxic substance content, and acute toxicity of the solid waste, and determine whether the solid waste is hazardous waste based on the results of the identification. It is determined whether or not Specifically, in this example, the corrosion, reactivity, flammability, leaching toxicity, toxic substance content, and The process of operation to identify acute toxicity includes sampling and detection analysis. The sampling is carried out by taking samples of solid waste and determining the corrosiveness, reactivity, and flammability of the collected solid waste. The purpose is to detect and analyze various factors such as the toxicity, leaching toxicity, toxic substance content, and acute toxicity. The detection and analysis methods for various detection indicators are different. In this example, The technical specifications and standards for this are the "Specific Technical Specifications for Hazardous Waste" (HJ298-2019). , "Identification of Corrosiveness of Hazardous Waste Identification Standards" (GB5085.1-2007), "Hazardous Waste "Preliminary Screening of Acute Toxicity of Substances Specific Criteria" (GB5085.2-2007), "Dangerous Goods "Identification of leaching toxicity in waste identification standards" (GB5085.3-2007), "Identification of hazardous waste "Specification of flammability in specified criteria" (GB5085.4-2007), "Reaction of hazardous waste specified criteria" "Identification of Hazardous Waste" (GB5085.5-2007) and "Identification of Hazardous Waste Containing Toxic Substances" This includes the "Specifying the Quantity" (GB5085.6-2007).

Claims

1. 1. A method for inspecting a solid waste landfill site, comprising: Conduct on-site inspections of solid waste landfill sites and, based on the results of the on-site inspections, Divide the field to obtain a measurement area, and then further divide the measurement area to obtain a measurement line. further dividing the measurement line to obtain measurement points; The measurement line is detected within the measurement area using the transient electromagnetic method or the density electric method, and then the measurement line is If a solid waste landfill is detected, the location of the solid waste landfill will be further identified by ground penetrating radar. Detects the measurement point on the measurement line where a solid waste landfill exists and detects the presence of a solid waste landfill at the measurement point. If so, the solid waste at the measurement point where a solid waste landfill exists due to infill drilling Defining a landfill area; A 3D map of the solid waste landfill area created using visual geological modeling software The amount of solid waste to be landfilled is calculated based on the three-dimensional map. Finally, the solid waste landfill model is created. Identify the solid waste hazards within the area, obtain the hazard identification results, and The solid waste landfill area, solid waste landfill volume, and hazard identification results for all measurement points are recorded. a step of making a survey result of the landfill site; 1. A method for investigating a solid waste landfill site, comprising:

2. In the method for conducting on-site survey of a solid waste landfill disposal site, Based on historical data and site reconnaissance, a prediction of whether or not solid waste will be buried at the solid waste landfill site is made. If a solid waste landfill exists, prepare a preliminary judgment and obtain the landfill history data of the solid waste landfill site. Further determination of the location of the solid waste landfill and the type of landfill material will be made in accordance with the landfill history. The historical data includes information on the solid waste landfill sites that have been found at the solid waste landfill site.

2. The solid waste landfill disposal site according to claim 1, wherein the solid waste landfill disposal site includes a location and a solid waste property. Research methods.

3. In the method for dividing a solid waste landfill site based on the results of the on-site survey, According to the landfill history data and the results of the on-site survey, there is a solid waste landfill. The area where the presence of a solid waste landfill is determined shall be included in the measurement environment for the solid waste landfill. Then, the measurement area is divided into equal distances to obtain measurement lines.

3. The method according to claim 2, wherein the measurement points are obtained by dividing the measurement line by an equal distance. Methods for investigating solid waste landfills.

5. The area of ​​the solid waste landfill at the measurement point where the solid waste landfill exists is determined by infill drilling. In the method of determining whether a solid waste landfill is present at the measurement point, Continue measuring east-west at a distance of 1 m from the measurement point until there is no more landfill below the drilling point. By conducting infill drilling in four directions from north to south, the area of ​​the solid waste landfill at the measurement point was confirmed. and marking the solid waste landfill layer to obtain mark information of the solid waste landfill layer.

2. The method for investigating a solid waste landfill site according to claim 1, wherein:

6. The mark information of the solid waste landfill layer includes information on the planar distribution range of the solid waste landfill, vertical thickness information and vertical distribution of solid waste characteristics of the solid waste landfill, The state includes color, state, and smell, and the state includes a solid state and a liquid state.

6. The method for inspecting a solid waste landfill site according to claim 5, wherein:

7. 3D map of solid waste landfill area using visual geological modeling software In the method for creating a solid waste landfill, the solid waste landfill layer mark information is used Visual geological modeling software was used to create a 3D map of the solid waste landfill. The solid waste landfill information includes information on the latitude, longitude and ground elevation of the solid waste landfill area. Including, In the method for identifying solid waste hazards within a solid waste landfill, Corrosiveness, reactivity, flammability, leachable toxicity, toxic substance content, and Identifying acute toxicity and determining whether a solid waste is a hazardous waste based on the identification results; 6. The method for inspecting a solid waste landfill site according to claim 5,

Images