44 results about "Ground water quality" patented technology

The invention relates to an inshore water quality day-by-day kilometer-level inversion method, system, device and medium, and belongs to the technical field of water quality monitoring, the method comprises the following steps: obtaining remote sensing image data, meteorological reanalysis data and ground water quality site measured data, preprocessing, carrying out space-time matching fusion, using the fusion data as a sample to carry out model training, and obtaining a model training model; obtaining a space model; a spatial model offshore water quality spatial distribution diagram; and constructing a CNN-BiLSTM mixed time sequence model, and training the CNN-BiLSTM mixed time sequence model by taking historical water quality data of a ground water quality station and the offshore water quality spatial distribution map as samples to obtain a prediction model. The method is suitable for red tide early warning, pollution tracing and marine ecological management, breaks through monthly monitoring limitation, and realizes day-by-day kilometer-level water quality dynamic tracking; remote sensing large-range coverage and site high-precision data are fused, and the problem of inshore environment heterogeneity is solved; the time-space double-model cascade architecture significantly improves the generalization ability under complex hydrological conditions.

The invention relates to an underground water quality on-line automatic monitoring station which comprises a monitoring station main body, a multi-parameter sensor, a pump and a solar power supply system, the multi-parameter sensor and the pump are arranged underground, a plurality of layers of partition plates are arranged in the monitoring station main body, a plurality of mounting layers are formed from top to bottom, and a control box is mounted at the top of the uppermost partition plate; a monitoring instrument is installed on the monitoring station body, a voltage stabilizer and a UPS are sequentially arranged at the position of a partition plate below the monitoring instrument and electrically connected with a battery pack to form a standby power supply system, a reagent container is arranged at the position adjacent to the battery pack, a measuring pool is arranged at the bottom in the monitoring station body, and a liquid outlet of the measuring pool is communicated with a waste liquid and waste water collecting device. According to the invention, through reasonable partition arrangement of multiple layers of partition plates, real-time monitoring and data uploading of underground water are realized, dual-power-supply guarantee is provided, operation is stable, waste liquid is collected, treated and detected in a centralized manner, and secondary pollution is effectively avoided.

The invention provides a liquid crystal pollutant underground water detection system based on fluorescence tracing, and relates to the technical field of underground water environment monitoring and pollution prevention and control. According to the system, three types of core structures BAs, CBAs and FBAs of the LCMs serve as targets, a specific fluorescent probe is designed, a water sample is accurately obtained through an underground water in-situ sampling module, and after fluorescence signal amplification and anti-interference processing are conducted, LCMs type recognition and concentration quantification are achieved in combination with a machine learning algorithm. The core innovation lies in the structural adaptive design of the targeted fluorescent probe, the underground water quality anti-interference technology, engineering in-situ detection integration and multi-component synchronous analysis. Practice verification shows that the detection limit of the system to BAs, CBAs and FBAs LCMs is as low as 0.01-0.05 ng / L, the response time is less than or equal to 30 min, the turbidity resistance and ion interference resistance are high, the system is adaptive to engineering scenes such as in-well monitoring and leachate tracing, rapid screening and dynamic tracking of underground water LCMs pollution can be realized, and engineering technical support is provided for underground water pollution prevention, control and restoration.

The invention discloses a wetland groundwater quality environment monitoring method and system, and relates to an image processing and data processing technology, and the method comprises the steps: integrating an imaging probe to an induction buoy, and carrying out the vertical arrangement of the induction buoy in a groundwater monitoring well; acquiring effective water level data of each underground water monitoring well based on the sensing buoy chain at any monitoring moment; image acquisition is carried out by utilizing the triggered imaging probes in the induction buoy chain; according to the image data acquired at each water level, extracting morphological characteristics of the particulate matters retained in the image data at different water levels; identifying particulate matter types under different water levels according to the extracted morphological features; and based on the obtained effective water level data, establishing a corresponding longitudinal coordinate so as to establish a current water level-water quality correlation map according to the identified particulate matters. According to the invention, the water quality of the wetland underground water can be detected in a more intuitive manner, so that the monitoring efficiency of the underground water is improved.

The invention relates to the technical field of underground water quality analysis, in particular to a quantitative sampling device for underground water quality analys.The quantitative sampling device comprises a water diversion mechanism, a standing detection mechanism is arranged on the side face of the water diversion mechanism, and the standing detection mechanism communicates with the interior of the water diversion mechanism; a separable pre-embedded water diversion mechanism is arranged at the bottom of the water diversion mechanism, the pre-embedded water diversion mechanism communicates with the interior of the water diversion mechanism, and quantitative extraction equipment is arranged on the front face of the water diversion mechanism. During use, the drainage pipe and the sampling pipe are arranged on the two symmetrical faces of the flow dividing bin respectively and used for being connected with an external pump and a standing detection mechanism, underground water can be guided into the flow dividing bin to make contact with a probe of the standing detection mechanism, and real-time detection analysis is achieved; the quantitative water taking pump quantitatively pumps deep underground water through the spring pipe for detection and analysis, and the effect that standing detection and quantitative sampling detection can be carried out at the same time is achieved.

The invention relates to the technical field of underground water sampling, in particular to an underground water quality monitoring and sampling device which comprises a sampling box, a buoyancy component is fixedly mounted on the lower side of the sampling box, a sampling shell is fixedly mounted on the lower side of the buoyancy component, and a sampling component is rotatably mounted on the upper side of the sampling shell. An anti-turbulent flow assembly is fixedly mounted on the lower side of the sampling shell; the worm drives the worm gear to rotate, the worm gear drives the driving rod to rotate, the driving rod drives the driving gear to rotate, the driving gear drives one of the connecting gears to rotate, and therefore the multiple sets of connecting gears are driven to perform linkage movement; the six anti-spoiler plates are driven to move and are parallel to one another, large-particle sediments which do not participate in detection at the bottom of the sampling well are separated, then sampling water is sucked into the sampling well through the one-way suction nozzle, and the situation that the sampling water is mixed and polluted due to turbulent flow generated in the suction process is prevented.

The invention discloses an underground water multi-pollutant rapid prediction and diagnosis system, which comprises a multi-parameter sensing and data acquisition module used for acquiring underground water quality parameters in real time; the edge pretreatment unit is used for carrying out edge pretreatment on the underground water quality parameters; the off-line synthetic data engine is used for generating synthetic training data of transient extreme working conditions; the feature engineering processing unit is used for constructing interaction features based on a geochemical mechanism; the AutoML reasoning unit is used for deducing and outputting a pollutant concentration predicted value through a model; and the physical-data dual-drive fault diagnosis module is used for diagnosing the authenticity of pollution according to three-dimensional calculation results of the physical residual calculated by the physical residual calculation unit, the mean square error of the sensor data calculated by the data reconstruction error unit and the difference between the observed value and the predicted value calculated by the statistical test unit. And judging whether to give an alarm according to the diagnosis result. According to the scheme, the specific pollutants can be accurately identified, and the authenticity of pollution can be accurately identified.

The invention discloses a water quality evolution intelligent analysis system suitable for groundwater investigation, and particularly relates to the technical field of groundwater environment evolution analysis, organizing and calling behavior monitoring of a multi-strategy prediction model is realized based on a model pool construction module, and whether the model is in a gaming polarization state is judged by combining a polarization identification module; the dynamic weight adjusting module is used for adjusting the model participation weight, the entropy constraint module is introduced for inhibiting the weight representation imbalance, the error correction module is used for dynamically feeding back and correcting the prediction error, and the path memory module is used for realizing the storage and reuse of the regulation and control strategy in the polarization state; according to the method, dynamic identification and weight adjustment control of model behavior polarization are realized by constructing a multi-strategy model pool and a polarization identification mechanism, the evolution stability of the system is guaranteed by combining entropy constraint and an error correction mechanism, and the response intelligence and the strategy reuse capability are improved by introducing a path memory module. Therefore, the accuracy, the stability and the self-adaptive capability of the groundwater quality evolution analysis are enhanced.

The utility model discloses an underground water quality detecting and sampling device which comprises a sampling component connected with a pay-off component and used for sampling underground water; the sampling assembly comprises a first electric push rod, a connecting block, a sampling rod, a sampling hole, a baffle ring and a connecting plate; a shell of the first electric push rod is fixedly connected with the sampling rod, a plurality of sampling holes which are uniformly distributed are formed in the sampling rod, and the sampling rod penetrates through a plurality of baffle rings. The utility model relates to the technical field of underground water sampling, in particular to an underground water quality detecting and sampling device which realizes automatic sampling through the cooperation of a pay-off assembly and a sampling assembly. The transverse adjusting assembly and the vertical adjusting assembly can accurately control the sampling position, so that the representativeness of the sample is ensured; automatic sampling reduces the risk that personnel directly contact a polluted water source, and the operation safety is improved.

The invention relates to the technical field of water quality monitoring and sampling, and particularly discloses an underground water quality monitoring and sampling device which comprises a sampling box body, the bottom of the sampling box body is fixedly connected with universal wheels with brakes, and the universal wheels with the brakes are uniformly distributed at the bottom of the sampling box body; a freezing fan is fixedly connected to the center position of the bottom of the sampling box body, the freezing fan is communicated with a first placement barrel through a pipeline, the bottom of the first placement barrel is fixedly connected with the bottom of the inner wall of the sampling box body, and a second placement barrel is fixedly connected to the part, located on one side of the first placement barrel, of the inner wall of the sampling box body; a sampling device is fixedly connected to the part, away from one side of the second placement cylinder, of the bottom of the inner wall of the sampling box body, a first electric guide rail is fixedly connected to the top of the inner wall of the sampling box body, the underground water quality monitoring and sampling device is fixed by pushing the sampling box body with brake universal wheels to a sampling point, and the problem that traditional equipment is inconvenient to move is solved.

The invention relates to the technical field of underground monitoring well maintenance, and discloses an underground monitoring well unblocking and desilting process which comprises the following steps: S1, clogging judgment: monitoring the water level and the water quality of an underground monitoring well, and on the premise that the current underground monitoring well simultaneously meets the periodical fluctuation abnormity of the underground water level and the abnormal water quality of the underground water, determining the clogging of the underground monitoring well; verifying whether the current underground monitoring well is clogged or not through a video, and if so, carrying out the next step; s2, desilting operation is conducted, specifically, scrubbing and piston flushing are conducted on the inner pipe wall of the current underground monitoring well in sequence, and then water body replacement and washing are conducted; and S3, desilting effect evaluation: the current desilting effect of the underground monitoring well is evaluated, if the current desilting effect is judged to be unblocked, the process is ended, and if the current desilting effect is judged to be clogged, the process jumps to the step S2. In addition, the invention further discloses an underground monitoring well unblocking and desilting device which is applied to the step S2. According to the method, a complete underground water desilting and unblocking process is formed through underground monitoring well clogging judgment, desilting operation and desilting effect evaluation.

The invention provides a groundwater pollution risk assessment method based on a groundwater environment background value, and aims to solve the problems that the influence of a natural process and human activities on a groundwater environment is difficult to discriminate in the prior art, the background value is inaccurate to determine, the risk management mode is extensive and the like. The method comprises the following steps: dividing a human activity influence area and a natural dominant area by constructing a human activity quantification model and a judgment model, and determining an underground water environment background value; introducing an underground water dynamic field activeness index, and establishing a water quality dynamic threshold model associated with the activeness; dividing main control factor subareas of different groundwater qualities according to the activeness-water quality discrimination relation and the pollution source analysis result; and the zoning result is verified by adopting methods such as isotopic tracing or specific pollutant analysis, a risk management and control strategy matched with the characteristics of each zone is provided, scientific improvement of underground water background value determination is realized, and a refined technical support is provided for underground water environment protection and restoration work.

This invention relates to the field of pollution monitoring technology, specifically to a multivariate dynamic monitoring platform for groundwater in mining areas. This platform includes a data acquisition module for acquiring sample environmental hydrological disturbance data sequences and sample hydrological and water quality data sequences; an evaluation value acquisition module for acquiring complex and sensitive evaluation values ​​of environmental hydrological disturbance responses corresponding to each hydrological and water quality type; and a gain compensation and decision tree model construction module for compensating the traditional information gain of the corresponding hydrological and water quality type based on the complex and sensitive evaluation values ​​of environmental hydrological disturbance responses, obtaining a target information gain, and using the target information gain as a node splitting criterion to conduct supervised learning training on the sample hydrological and water quality data combination to generate a binary classification decision tree model for groundwater pollution identification and monitoring in mining areas. Furthermore, this invention can improve the accuracy of the decision tree model for pollution identification and monitoring.

The invention discloses a water quality-water quantity-ecology coupled groundwater environment risk early warning method, and belongs to the technical field of groundwater resource management and ecological environment protection. According to the method, an underground water environmental risk early warning PQLRT model is constructed based on five types of underground water environmental risk early warning indexes, namely an underground water pollution risk P, an underground water quality change trend Q, an underground water level change trend L, an ecological risk R and an ecological evolution trend T; giving grade values 1-3 to the five types of early warning indexes respectively; carrying out weighted summation on the five index equal weights to form an underground water environment risk score; and according to the underground water environment risk score, an equal-distance grading method is adopted to divide into five early warning levels: no alarm, light alarm, medium alarm, heavy alarm and huge alarm. According to the invention, based on multi-source data fusion and factor weight construction, multi-dimensional risk identification, graded early warning and driving element determination of underground water environment risks are realized, and technical support is provided for sustainable utilization and ecological safety management of underground water resources.

The utility model discloses a movable polluted groundwater well washing device, which relates to the technical field of environment monitoring and comprises a box body, a box cover is hinged on the upper surface of the box body through a hinge, a storage battery, a variable-frequency governor and a flow meter are arranged on the inner wall of the box body, and the variable-frequency governor and the flow meter are electrically connected with the storage battery through leads. A well washing device body and two supporting frames are arranged outside the box body, and a winding roller is installed between the two supporting frames. According to the underground water quality pollution detection device, underground water needing to be detected can be pumped through the well washing device, new water is returned, the obtained water quality has representativeness, the accuracy of the underground water quality pollution detection result is guaranteed, the movable power source is used for supplying power to the well washing device, meanwhile, the pumping speed of the well washing device can be controlled, and the water quality pollution detection accuracy is improved. The amount of the pumped underground water can be monitored, and the polluted underground water well washing device is integrally designed, so that the convenience and practicability during subsequent use and movement can be improved.

The invention belongs to the technical field of intelligent monitoring, and particularly relates to a wellhead integrated underground water automatic monitoring terminal. Comprising a sampling cavity arranged in a wellhead casing, and underground water enters the sampling cavity through a water inlet hole in the wellhead casing; the three-electrode probe assembly is mounted in the sampling cavity and comprises a working electrode, a reference electrode and an auxiliary electrode; the electrochemical workstation module is used for applying a sine disturbance voltage signal superposed on the steady-state open-circuit potential to the three-electrode probe assembly; the model identification module is used for generating a Nyquist diagram scatter sequence according to the original electrochemical impedance spectroscopy data sequence to form an equivalent circuit model identification result; the water quality calculation module is used for calculating underground water quality indexes according to the identification result of the equivalent circuit model; and the communication module is used for uploading the underground water quality index to a remote underground water monitoring platform. The method has the advantages of being compact in structure, high in intelligent degree, high in calculation efficiency and high in adaptability.

The utility model relates to an underground water quality surveying and sampling device which comprises a sampling pipe, a conical pipe bottom fixedly connected to the bottom of the sampling pipe, a water inlet pipe fixedly connected to the bottom of the conical pipe bottom, a hollow screw-in valve element in threaded connection with the bottom end of the water inlet pipe, a valve ball arranged at the top of the screw-in valve element, and an elastic assembly abutting against the valve ball and arranged in the conical pipe bottom. The screw-in valve element is screwed in to push the valve ball to compress the elastic assembly to adjust the water inlet pressure. According to the underground water quality surveying and sampling device, the screwing-in valve element capable of screwing in and adjusting the elastic assembly is used for adjusting the water pressure resistance of the valve ball, so that a water sample can eject the valve ball open to enter the sampling pipe only when the target depth is reached in water, deep water sample collection is achieved, and the water quality surveying accuracy is improved.

The invention discloses a groundwater remediation system based on an oxidation reaction zone. The groundwater remediation system comprises a general control integration subsystem, a groundwater circulation well subsystem, a chemical injection subsystem and a monitoring subsystem. The groundwater circulating well subsystem comprises a plurality of groundwater circulating wells distributed at the downstream of the polluted area, each groundwater circulating well forms a vertically flowing hydraulic influence area in a respective vertical area, and the hydraulic influence areas corresponding to the plurality of groundwater circulating wells are connected in series to form a hydraulic oxidation reaction zone; the monitoring subsystem monitors underground water quality condition data of the upstream and the downstream of the underground water circulation wells and transmits the monitoring data to the general control integration subsystem, and the general control integration subsystem controls the chemical injection subsystem according to the monitoring data and adjusts chemical injection parameters of each underground water circulation well. The type and concentration of underground water pollutants are monitored in real time, the injection amount and the medicament type are precisely adjusted in a targeted mode, further outward diffusion of the pollutants is greatly prevented, and effective control over the pollution plume is achieved.

The invention provides a cooperative monitoring method and device for a river channel sewage draining exit based on space-air-ground integration, relates to the technical field of remote sensing, and solves the technical problem that large-range, high-precision and full-time monitoring of the river channel sewage draining exit cannot be realized at the same time in the prior art. The method specifically comprises the following steps: acquiring remote sensing image data of a first area, and preprocessing to obtain orthographic remote sensing image data; extracting a water area vector boundary of the first area by adopting a remote sensing water body index in combination with deep learning, training a model A for identifying water body pollution in combination with ground water quality data and remote sensing features, and performing inversion to obtain a second area; the dual-camera unmanned aerial vehicle is controlled to carry out aerial photography on the second area, and the position of a sewage draining exit is determined through K-means clustering in combination with visible light image data; taking the thermal infrared threshold exceeding area of the camera of the sewage draining exit as a sample, and training a model B for identifying a video; and monitoring the drain outlet day and night based on the model B and the second infrared image data, and identifying the pollution discharge information in real time. The method is used for monitoring the sewage draining exit of the riverway.

The application discloses a filter core for simulating the quality of Emei Mountain underground water, a preparation method and a filter. The filter core comprises modified volcanic breccia, modified basalt, modified dolomite, modified limestone, activated carbon and a polymer. Through the synergistic effect of the modified volcanic breccia, the modified basalt, the modified dolomite, the modified limestone and the activated carbon, impurities in drinking water can be adsorbed and removed, and various minerals can be separated through ion exchange, so that the content of various minerals in water is increased. In combination with water-rock interaction, drinking water with the quality of Emei Mountain underground water can be simulated by using the filter core.

The invention discloses a high-spatial-resolution underground water-river-lake quantity and quality coupling risk assessment method, which belongs to the field of water resource management, and comprises the following steps: constructing a high-spatial-resolution water resource quantity and quality database, and integrating high-resolution water quantity, water quality data and ecological water demand; calculating the water quantity risk of surface water and underground water in each area; calculating water quality risks of surface water and underground water in each area; for four indexes of surface water quantity risk, underground water quantity risk, surface water quality risk and underground water quality risk, combined weight is calculated by combining a principal component analysis method and an entropy weight method; and calculating the quantity-quality coupling risk of the composite system through a weighted expression based on the combined weight and the risk value of each index. The method aims at solving the problems that an existing evaluation method is insufficient in spatial resolution and difficult to recognize a local high-risk area and a main control factor, the risk area, the grade and the main control risk source can be accurately recognized on the composite system scale, and scientific support is provided for water resource zoning and grading management and control and differentiated response.

This utility model discloses a depth-adjustable groundwater sampling device for groundwater quality testing, belonging to the field of groundwater testing technology. It includes a U-shaped frame with a sleeve assembly on the inner side. A motor assembly is installed at the upper part of the U-shaped frame, above the sleeve assembly. This utility model incorporates a movable thawing device, allowing workers to move the device as needed using wheels, thus reducing the difficulty of moving the device and lessening the workload. Furthermore, when ground conditions permit, workers can fix the device in place using an electric lifting rod and a cone-shaped structure, reducing the possibility of the device deviating from its original position due to external collisions. Additionally, workers can use a fan and an electric heating rod to thaw the surface layer of frozen groundwater in winter, thereby improving the device's working capacity.

The invention provides an underground water quality risk identification method and system for environmental safety, and relates to the technical field of data processing, and the method comprises the steps: obtaining a plurality of training samples; preprocessing the training sample; constructing an artificial neural network model based on adaptive feature fusion; inputting the training sample into an artificial neural network model, and determining a water quality index predicted value; training an artificial neural network model through a zoom conjugate gradient algorithm according to the water quality index true value and the water quality index predicted value of each training sample; acquiring a to-be-identified underground water quality parameter set; inputting a to-be-identified underground water quality parameter set into the trained artificial neural network model, and outputting a predicted water quality index; calculating a water quality risk confidence coefficient by combining the predicted water quality index and a water quality classification standard; and determining a water quality risk grade according to the water quality risk confidence.

The invention belongs to the technical field of water quality monitoring, and particularly relates to an underground water quality monitoring device and method for geophysical and geochemical exploration. Comprising a monitoring platform; a main filter cartridge is mounted at the bottom of the monitoring platform, and a certain distance is reserved between the main filter cartridge and the monitoring platform; an annular track is mounted at the bottom of the monitoring platform; a plurality of rotating blocks are in fit connection with the annular track and are in running fit with the annular track; the bottoms of the plurality of rotating blocks are jointly connected with an auxiliary filter cylinder; the auxiliary filter cartridge is positioned in the main filter cartridge and is in running fit with the main filter cartridge; a detector is mounted in the auxiliary filter cartridge; a rotating dislocation device is arranged on the monitoring platform; the underground water cannot be in direct contact with the detector for a long time, the underground water only needs to be put into the auxiliary filter cartridge for detection during monitoring, the situation that mineral substances, microorganisms or organic matters in the water are attached to the surface of the detector to form dirt or a biological membrane when the device is used for a long time is avoided, and the response speed and the measurement precision of the detector are improved; and the service life of the device is prolonged.

The utility model relates to an underground water quality on-line monitoring device, which relates to the field of monitoring devices, and comprises a monitoring analysis host, a solar panel, a fixed support and a combined in-place probe, the fixed support is fixedly arranged, the monitoring analysis host is fixed at the upper end of the fixed support, the solar panel is fixedly connected with the fixed support and is positioned above the monitoring analysis host, and the combined in-place probe is arranged on the solar panel. The solar panel is electrically connected with the monitoring analysis host, and the combined in-place probe is located in an underground water well and is in communication connection with the monitoring analysis host. The utility model has the beneficial effects that the combined in-place probe detects various parameters of underground water on line in real time in an underground water well and transmits the parameters to the monitoring and analyzing host, and the solar panel converts solar energy into electric energy and can supply power to the monitoring and analyzing host; the monitoring analysis host can flexibly select a mains supply or solar energy power supply mode according to field conditions.

The application discloses a high-efficiency fluorine removal agent and a production method and equipment thereof, and relates to the technical field of fluorine-containing wastewater treatment. The high-efficiency fluorine removal agent comprises HEDTA, DTPA, Fe2(SO4)3, FeCl3, NaHCO3, NaH2PO4, Fe-MOFs, Zn-MOFs, propylene glycol and deionized water. The fluorine removal agent can efficiently remove fluorine ions in water through multiple action mechanisms such as chelation stability, fluorine removal by precipitation, catalytic oxidation, fluorine removal by adsorption and pH buffer adjustment. The micro-channel reactor is used for continuous production, the uniformity and stability of the agent are improved, and the fluorine removal effect is ensured. The fluorine removal agent is suitable for fluorine removal treatment of drinking water, industrial wastewater and groundwater. After the fluorine removal agent is used for low-fluorine and medium-fluorine concentration water body treatment, the fluorine ion concentration is reduced to below 1 mg / L, and the drinking water and groundwater quality recovery standards are reached. The amount of sludge generated in the fluorine removal process is small.

The invention provides a pollution source groundwater environment quality dynamic evaluation method and device based on multi-source data fusion. The method comprises the following steps: taking multi-source data related to groundwater information as training data; training a classification prediction model based on the training data; the classification prediction model comprises a convolutional neural network model, a decision tree model and a random forest model; obtaining a pollution source of a to-be-evaluated groundwater environment from the secondary pollution general data, taking the screened features corresponding to the to-be-evaluated groundwater environment as to-be-evaluated features, and inputting the to-be-evaluated features into the trained classification prediction model to obtain a groundwater environment quality evaluation result; and drawing a groundwater environment quality map based on the prediction result and the project achievement integration data. According to the method, multi-source data such as pollution sources, groundwater quality grades and groundwater pollution prevention key area demarcation are integrated, input characteristics are screened based on information gain, and the pollution source groundwater environment quality is rapidly and accurately predicted.

The invention discloses a sampling device for underground water quality monitoring, and relates to the technical field of monitoring sampling, the sampling device comprises a lifting structure and a sampling container, and also comprises: a sealing structure arranged at the opening sides of the two ends of the sampling container; a placement groove is formed in the side wall of the placement frame, and a connecting ring is slidably arranged at the top; the opening-closing structure is used for controlling the sealing state of the sealing structure; the buckling seat is fixedly arranged at the bottom of the placing frame; a connecting buckle is arranged at the top of the connecting part, and a connecting piece is arranged at the bottom; two ends of the connecting rope are respectively connected with the connecting part and the placing rack; the releasing piece is arranged in the connecting part in a sliding manner and is used for releasing the buckling between the connecting buckle and the buckling seat; the pressure measuring part is installed on the side wall of the connecting part and used for driving the releasing piece to rise according to the pressure on the outer side of the connecting part. A two-stage strategy of coarse screening and fine checking is adopted, a rapid mode is used for unpolluted or low-risk monitoring wells, a fine mode is started for abnormal wells, and the contradiction between excessive sampling and insufficient sampling is avoided.

A pump pressure deep irrigation system comprises a water suction pump station, a water treatment plant and a deep irrigation system, the deep irrigation system comprises a deep permeable pipe, an energy accumulator and a water pump, the energy accumulator comprises a closed cavity composed of a barrel body and a barrel cover, the closed cavity is divided into an inflation cavity and a water filling cavity through a flexible film or an air bag, an air pump is arranged on the barrel cover, and the water pump is arranged on the barrel cover. The air pump is communicated with the inflation cavity through a vent hole formed in the barrel cover; a water inlet and a water outlet are formed in the barrel wall of a water filling cavity of the energy accumulator, the water inlet is connected with a water outlet of a water pump through a water outlet pipe, the water outlet pipe is connected with a first one-way valve in series, and a water inlet of the water pump is communicated with a reservoir through a water inlet pipe and a water pump filter. The precision filter, the disinfection and sterilization device and the second one-way valve are sequentially connected in series on the water pipe. When the device is used for supplementing water to the underground deep layer, blockage and underground water quality deterioration are not prone to occurring, and operation energy consumption is low.