14 results about "Water chemistry" patented technology

The application discloses a water quality and soil detection and analysis method and system based on multi-standard automatic evaluation and belongs to the technical field of environmental monitoring data processing. The system comprises a data import module, an intelligent identification module, a batch sample processing module, a multi-standard evaluation module, a comprehensive analysis module, a water chemistry verification module and a result output module. The system automatically analyzes the Excel table structure through an intelligent identification algorithm, extracts index names, units, detection results and background values, supports batch sample format identification, can analyze multiple samples at a time, integrates three environmental quality standards of underground water GB / T 14848-2017, surface water GB 3838-2002 and soil GB 36600-2018, automatically performs quality classification evaluation, calculates single pollution index P i , exceeding multiple, Nemerow comprehensive pollution index P N , performs water chemistry anion and cation balance verification, Shukarev classification, TDS and hardness checking, and supports single sample and batch sample export and summary table generation. The application solves the problems of weak Excel data recognition ability, batch sample processing difficulty, lack of multi-standard automatic switching, single comprehensive evaluation method and insufficient data quality checking in the prior art, and greatly improves the efficiency and accuracy of detection data analysis.

This invention provides a geochemical method and system for identifying phytoplankton community succession, relating to the fields of aquatic environmental geochemistry and ecological environment monitoring. The method involves simultaneous sampling of a target water body to determine water chemical parameters, dissolved inorganic carbon, particulate organic carbon, and stable carbon isotopes, while simultaneously acquiring data on the species composition and relative abundance of phytoplankton. Based on the water chemical parameters, the forms and concentrations of dissolved inorganic carbon in the water body are determined to ascertain the carbon source utilization pattern. The stable carbon isotope shift in the water body is determined based on the dissolved inorganic carbon, particulate organic carbon, and stable carbon isotopes. Furthermore, the stage of phytoplankton community succession in the target water body is identified by comparing the carbon source utilization pattern and the stable carbon isotope shift with the indicators. This invention enables early identification of the community succession process based on changes in carbon source utilization patterns, even before changes in phytoplankton community morphology become apparent.

The embodiment of the present application relates to the field of testing the permeability of materials, and particularly to a method for determining the sealing performance of a filler. The method simulates the ground stress, temperature, pore water pressure and water chemical environment in the near field of a high-level waste repository, and restores the geological environment of a rock sample in the near field of the high-level waste repository as much as possible, so that the sealing performance of the filler determined in the environment is more accurate; by monitoring parameters such as the normal displacement of the fracture, the pore water pressure and the axial pressure, in combination with the microstructure and porosity data of the filler, different stages of the sealing of the fracture by the filler can be clearly identified, and the parameters can be quantitatively analyzed, so as to obtain data such as the deformation amount of the filler, the variation law of the porosity and the mineral precipitation amount, which reflect the sealing performance, and the data can reveal the physical-chemical mechanism of the mineral reaction of the filler, and thus can assist in the long-term safety prediction of the repository.

1. Name of the product in this design: Nozzle. 2. Purpose of this design: A device for converting liquids (such as water, chemicals, oil, etc.) into fine droplets through a specific structure and spraying them out uniformly. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The application discloses a kind of high salinity mine water deep well reinjection water quality and the coordinated determination of injection pressure method, specifically includes: collecting reinjection area geological data, hydrogeological data, groundwater sample and rock sample;Stratum i foundation hydrogeological model of reinjection is constructed;Develop reinjection high salinity mine water reinjection water chemistry numerical simulation, determine the ion component concentration threshold value, according to the ion component concentration determined configuration corresponding aqueous solution, obtain reinjection water quality parameter;According to the set reinjection flow and the service life of reinjection well, the total amount of design reinjection of reinjection well is calculated, and the corresponding limit pressure is calculated.The application realizes the coordinated determination of water quality index and injection limit pressure index based on the establishment of hydrogeological model, solves the problem that the past reinjection index determination relies on field practice experience determination is not rigorous, the method of the present scheme is clear in structure, logic is easy to understand, calculation process is simple, and is easy to popularize and apply.

A dynamic zinc concentration control method based on multiphysics coupling and hybrid optimization algorithms is proposed. This method employs a multiphysics coupling model that integrates heat transfer, flow, and water chemistry mechanisms to solve for the peak cladding temperature and CRUD layer thickness. The optimization module combines the Whale Algorithm (WOA) and simulated annealing (SA) techniques to perform multi-objective optimization, thereby generating the optimal dynamic adjustment scheme for zinc concentration. This invention can mitigate corrosion product deposition, stabilize the cladding surface temperature, and effectively maintain oxide film thickness, achieving dynamic zinc concentration control based on multiphysics coupling.

The application discloses a method for accurately determining the source of heavy metals in coal mine water, and relates to the field of mine water treatment. The method can accurately and quantitatively characterize the heavy metals in the mine water, and further realizes the purpose of obtaining the source of the heavy metals in the mine water. The method comprises the following steps: step 1, obtaining water chemical index parameters; step 2, determining and defining the types of heavy metals exceeding the standard; step 3, preliminarily determining the potential source of the heavy metals in the mine water; step 4, again determining the potential source of the heavy metals in the mine water; step 5, determining the possible source of the heavy metals in the mine water; step 6, performing coincidence analysis on the determination results of steps 3-5, and the coincidence object is the key source of the heavy metals in the mine water; step 7, taking a coal sample to perform a heavy metal leaching experiment, and obtaining typical heavy metal leaching parameters; and step 8, finally determining the true source of the heavy metals in the mine water. Finally, the source of the heavy metals in the mine water can be accurately identified, so as to facilitate the resource treatment of the mine water.

The present application relates to condenser seawater leakage online monitoring method, system, medium and equipment, including: import simulation data, and complete system initialization;According to the real-time monitoring data and sodium ion concentration field distribution under different leakage conditions of real-time acquisition Multi-parameter trend matching and early warning;According to the real-time monitoring data and simulation data are leaked, and the comprehensive leakage rate of seawater is calculated.The present application can realize the period trend matching, significantly improve the leakage early warning ability, can realize the leakage position and the quantization at the same time, solved the huge error caused by mixing uneven in the traditional water chemical material balance calculation.Moreover, the present application adopts multi-parameter trend matching, effectively distinguishes the real seawater leakage and the chemical anomaly caused by water treatment system, avoids unnecessary shutdown or power reduction event, improves the economy of the unit.

The present application relates to the field of environmental monitoring and automation control technology, and discloses a kind of data fusion and abnormal early warning method of multi-parameter water quality monitoring instrument, comprising the following steps: obtaining the multidimensional original time series data of water quality detection terminal, calculating each parameter dynamic self-adapting time window, generating measured time series gradient;Call water chemistry physics equation library to construct theoretical coupling partial derivative matrix, calculate the expected gradient of forced variable and generate residual sequence;When residual sequence is out of limit, physical excitation instruction is issued to terminal to drive target sensor to execute physical cleaning or polarization action, and recovery response slope is extracted;According to the comparison result of slope and standard value, distinguish real water quality pollution and sensor physical failure;When confirming hardware failure, calculate trust entropy based on distribution probability to reconstruct sensor fusion weight, and calculate virtual substitute value.The present application effectively eliminates phase misplacement, avoids high-frequency false alarm of traditional threshold determination, and maintains continuous operation of the system under local fault.

The present application relates to the technical field of water resources management, in particular to a kind of water well recharge suitability assessment method and system based on multidimensional detection and comprehensive index model, comprising the following steps: screening geological data to construct initial screening qualified water well set, scanning well shaft to identify damage and corrosion to obtain structural integrity data, carrying out ladder pressure test to analyze aquifer receiving capacity, analyzing water chemistry and suspended solids to assess plugging risk, combining environmental sensitivity to calculate weighted sum, dividing recommended category and establishing recharge suitability assessment list.In the present application, deep damage and corrosion conditions are identified by scanning water well wall and filter pipe throughout the section, deformation parts are accurately positioned to quantify structural integrity, water level response is monitored by using ladder pressure recharge test, aquifer permeability is calculated by inversion and real unit recharge is obtained, to ensure that screened well site has pressure-bearing structure stability and water quality chemical compatibility, effectively prolongs the service life of recharge project and protects groundwater ecological safety.

This invention discloses a regional groundwater environmental risk assessment system and method considering the vulnerability of risk receptors, relating to the field of hydrogeology. The system includes the following steps: S100, establishing a cross-timescale monitoring baseline, collecting groundwater recharge intensity sequences and hydrochemical sequences, extracting sedimentary pollution fingerprints through multidimensional correlation, and identifying germination areas with re-release characteristics; S200, under the constraint of the cross-timescale monitoring baseline, calculating the temporal coherence and phase residuals between the recharge disturbance sequence and the sedimentary pollution fingerprint, identifying key spatiotemporal locations triggering pollution release, and constructing a pollution release causal residual spectrum. This invention extracts pollution fingerprints through cross-timescale monitoring, identifies high-risk release areas, reconstructs pollution pathways by combining coherence analysis and phase inversion, sets threshold surfaces and precursor scores, generates pre-suppression parameters, and achieves pollution limiting and closed-loop control through frequency shifting and time inversion, thereby improving groundwater risk response and management capabilities.

This invention relates to the field of hydrological analysis technology, specifically disclosing a method for analyzing the hydrological characteristics of metal deposits. The method includes: at multiple sampling points within the mining area of ​​the metal deposit, projecting the major ion concentration of each water sample onto a pre-defined Piper triangular diagram of cations and anions, and connecting the coordinates of the cation phase diagram and the anion phase diagram generated for each water sample to form the topological edges of the hydrochemical phase diagram of the metal deposit; determining the initial water source type of the water sample based on the topological similarity between the topological edges of the hydrochemical phase diagrams of various pre-defined standard water sources and the topological edges of the hydrochemical phase diagrams; calculating the water-rock interaction activity index based on the rate of change of the basic hydrochemical parameters of the water sample over time, relative to the deviation of the standard mineral dissolution equilibrium constant corresponding to the initial water source type, to dynamically assess the risk status of the water inflow channel of the metal deposit; this invention can improve the efficiency of hydrological characteristic analysis of metal deposits.

The application provides a water quality monitoring method and system based on a water quality prediction model library, and relates to the technical field of water quality monitoring; the application extracts and fuses multi-dimensional state fingerprint features of dynamic pulse fingerprints and ion ratio fingerprints, performs mode matching and membership determination based on a state mode library constructed by two-stage clustering, and then activates a target sub-model adapted to the current state from the prediction model library to perform prediction; the water quality disturbance process and water chemical background information are decoupled and jointly coded, the technical problem of insufficient prediction accuracy of a single global model caused by state confusion in a traditional method is solved, and the fine perception and self-adaptive modeling capability for a complex and variable water environment are significantly improved. In addition, the design of the multi-dimensional fingerprint enables similar hydrological scenarios to be accurately searched and identified, and the exclusive model activation mechanism based on state matching ensures that the prediction model is always highly consistent with the driving mechanism of the current water body.

The application provides an emergency groundwater source origin analysis method combining isotope dating and water chemistry, comprising the following steps: determining the groundwater recharge, runoff and discharge conditions of a research area according to the regional hydrogeological conditions, setting sampling points in the research area, obtaining the water chemistry ion data, hydrogen and oxygen stable isotope data and radioactive isotope data of the groundwater in the research area, obtaining the basic characteristics of the water chemistry of the regional groundwater, ion spatial distribution, main control ion and source and water-rock reaction path based on the water chemistry ion data, obtaining the groundwater recharge source information and water body age information based on the hydrogen and oxygen stable isotope data and the radioactive isotope data, coupling the information obtained based on the water chemistry ion data, the hydrogen and oxygen stable isotope data and the radioactive isotope data, integrally analyzing the groundwater water chemistry genesis and evolution law of the emergency water source, and generating a tracing conclusion. The application provides a reference basis for the management and water taking of the emergency water source.