31 results about "Water pollutants" patented technology

This invention discloses an adaptive zoning management method for water environment pollutants based on differences in ecosystem service functions, belonging to the field of environmental risk assessment and pollutant management technology. The method includes the following steps: S1, ecosystem service function zone division; S2, establishment of a candidate pollutant inventory and concentration measurement; S3, construction of a differentiated multi-criteria evaluation system; S4, comprehensive subjective and objective weighting, determining the weights of each evaluation indicator for each ecosystem service function zone using a comprehensive subjective and objective weighting method; S5, pollutant priority ranking and inventory generation; S6, implementation of differentiated management measures. This invention, by constructing a zoning assessment framework and integrating multi-criteria decision analysis and a mixed subjective and objective weighting model, achieves accurate identification and scientific ranking of the environmental and health risks of pollutants in different functional zones. By generating a differentiated priority management inventory for each zone, it achieves the technical effect of transforming from unified supervision to precise adaptive management.

This invention relates to the field of water quality monitoring technology, specifically to an AI-driven intelligent detection method for water pollution events. The method includes: acquiring pipeline geometric parameters, numerical water quality indicators, and visual images of the water body using intelligent sensors, and extracting multi-dimensional water quality monitoring indicators to generate a water pollution feature tensor; generating a physical constraint deviation term in the loss function using the hydrodynamic convection-diffusion equation, and performing drift compensation on the measured values ​​of the intelligent sensors based on this physical constraint deviation term to construct a water quality evolution prediction model; inputting the water pollution feature tensor into the water quality evolution prediction model to output a three-dimensional dynamic diffusion field of water pollutants; and performing source tracing using a spatiotemporal field inversion operator to calculate the coordinate probability distribution of potential pollution sources and generate early warning commands. This invention improves the robustness and source tracing confidence of complex pipeline monitoring systems through physical consistency constraints and drift compensation.

This invention discloses a water purification device that utilizes titanium dioxide to degrade pollutants in water, relating to the field of water purification technology. The device includes: a support base; a drive transmission device fixed to the top center of the support base; an outer shell fixed to the top of the drive transmission device; an inner connecting column connected to the top center of the drive transmission device and coaxially arranged with the outer shell; a flow chamber rotatably disposed between the outer shell and the inner connecting column, and located above the drive transmission device; and multiple purification devices arranged in a ring, rotatably disposed within the flow chamber, with their bottoms connected to the drive transmission device. This invention achieves integrated, highly efficient, and continuous purification with enhanced mass transfer through dynamic contact between the catalyst and water, uniform photoexcitation across the entire area, uninterrupted maintenance, and zero catalyst powder loss.

The present application relates to automatic filtration adsorption technical field, specifically to a kind of automatic filtering device of biochar in water pollutant adsorption process, including filter barrel, cleaning cylinder, cleaning cylinder is fixedly connected on the outer wall of filter barrel, the inside of filter barrel is rotationally provided with scraping component, the inside of cleaning cylinder is movably provided with cleaning component, the front and back of cleaning cylinder are movably provided with positioning mechanism, two positioning mechanisms are extended to the inside of cleaning cylinder, filter membrane is fixedly connected on the inner wall of filter barrel, water inlet pipe is fixedly connected on the top of filter barrel, discharge port is formed on the left and right side walls of filter barrel, water outlet is formed in the bottom of filter barrel, the filter membrane after filtration is cleaned by cleaning component, so that it can be repeatedly used, and the biochar after adsorption is recycled, solve the excessive consumption of filter membrane and disposable syringe in the experiment process.

This utility model relates to the field of wastewater treatment technology and discloses a wastewater treatment device for scrubbing tower wastewater. It includes a sludge tank body, an aeration assembly mounted on the sludge tank body, an additive assembly mounted outside the sludge tank body, a filter press assembly mounted outside the sludge tank body, a first connecting pipe fixedly connected to the sludge tank body, a flow meter body mounted on the first connecting pipe, a first motor fixedly connected to the sludge tank body, and a threaded rod fixedly connected to the output end of the first motor. When the flow meter body is working, wastewater enters the sludge tank body for treatment in 10-ton units. Simultaneously with the aeration assembly, the additive assembly adds polyaluminum chloride, which adsorbs and precipitates crystals, adjusting the pH to create an optimal environment for coagulation. This allows more pollutants to be encapsulated and settled by the flocs, reducing the pollutant content in the effluent and minimizing reagent waste. This reduces costs and lightens the load on subsequent filter presses, making the process more efficient and stable.

This invention relates to the field of water environment monitoring technology and discloses an online method for measuring water pollutant flux. The method includes using a sensor array module distributed along a water body cross-section to acquire vertical flow velocity profile data, and calculating real-time flow rate by combining cross-sectional geometric parameters. Real-time concentration data of the target pollutant is acquired using either an optical sensor or a pollutant concentration sensor. Dynamic integration is performed by an embedded processor to output the pollutant flux per unit time. An adaptive calibration algorithm is introduced to correct sensor errors using historical data and environmental parameters (temperature, turbidity). This online method and equipment for measuring water pollutant flux can achieve simultaneous measurement of multiple parameters, i.e., simultaneous acquisition of flow velocity, concentration, and environmental parameters, eliminating spatiotemporal difference errors without manual intervention, and enabling continuous measurement.

This invention discloses a bifunctional catalyst, its preparation method, and its applications. The preparation method includes: firstly, loading alumina onto SBA-15 via impregnation, followed by drying and calcination to obtain a composite support Al2O3-SBA-15; then, loading the noble metal Rh onto the composite support using a precipitation deposition method, followed by solid-liquid separation, washing, drying, calcination, and reduction treatment to obtain the Rh / Al2O3-SBA-15 bifunctional catalyst. In the catalyst prepared by this invention, the modification with Al2O3 enhances the metal-support interaction, improving the dispersion and stability of Rh. The catalyst of this invention exhibits excellent bifunctional catalytic performance, capable of efficiently catalyzing the hydrolysis of ammonia borane to produce hydrogen, and effectively reducing N-nitrosodimethylamine in water using in-situ generated hydrogen, achieving an integrated treatment process of "in-situ hydrogen production-simultaneous reduction." The preparation process of this invention is simple, convenient to operate, and operates under mild reaction conditions. The obtained catalyst has broad application prospects in the field of ammonia borane-assisted water pollutant treatment.

The application provides a Cu2O / SiC / g-C3N4 ternary composite material and a preparation method and application thereof, and relates to the technical field of catalysts.The p-n junction is constructed between Cu2O and g-C3N4, and the Z-scheme heterojunction is constructed between Cu2O and SiC, the two mechanisms synergistically act, can effectively promote the separation of electrons and holes from the Cu2O photocatalyst, form an equivalent wide band gap, fully utilize the strong oxidizing property of the valence band of SiC and the strong reducing property of the conduction band of Cu2O, thereby greatly improving the photocatalytic performance;the proportion of the Cu2O / SiC / g-C3N4 ternary composite material prepared by the application as a photocatalyst in degrading methyl orange water pollutants within 110min can reach 93.70%.The preparation method of the application can realize the compounding of the three materials by adopting two simple processes of calcination and hydrothermal treatment, has the advantages of less raw materials, simple synthesis process and good repeatability, also has the basic conditions of large-scale production, and higher application potential and use value.

The application provides a water body pollutant piezoelectric catalytic degradation device, which has the structure of a reactor cavity (1). A top water inlet (2) is arranged at the top of the reactor cavity (1), and a bottom water outlet (3) is arranged at the bottom of the reactor cavity (1). A two-dimensional agitation zone, a one-dimensional penetration zone and a zero-dimensional fluidization zone are arranged in the cavity of the reactor cavity (1), and a bubble fluidization excitation system is arranged outside the cavity of the reactor cavity (1). A hydraulic pulse circulation driving system is arranged outside the cavity of the reactor cavity (1) and is communicated with the top water inlet (2) and the bottom water outlet (3). The two-dimensional agitation zone, the one-dimensional penetration zone and the zero-dimensional fluidization zone are connected in a multi-dimensional cascade structure, so that the overall treatment efficiency of different forms of pollutants can be improved.

This application discloses a ZIF-FCP catalyst for contact electrocatalytic removal of water pollutants, its preparation method, and its application. This ZIF-FCP catalyst, when applied to contact electrocatalytic removal of water pollutants, possesses characteristics of interfacial stability, charge separation capability, and high catalytic activity, enabling efficient degradation of organic pollutants in water. Furthermore, the ZIF-FCP catalyst exhibits good structural stability and can be reused multiple times. The preparation method of the ZIF-FCP catalyst includes the following steps: S1, adding a zeolite imidazole ester framework and a fluorocarbon polymer solution to a container; S2, evacuating the container and then returning it to atmospheric pressure, using a vacuum-assisted loading method to load the fluorocarbon polymer onto the surface of the zeolite imidazole ester framework, thereby obtaining the ZIF-FCP catalyst. The ZIF-FCP catalyst has a three-layer composite structure from the inside out: a zeolite imidazole ester framework, an interfacial anchoring layer, and a fluorocarbon polymer electron-withdrawing layer.

The present invention describes the development of a nanometric platform highly sensitive to the presence of two potential water contaminants, hydrazine and p-nitrophenol. This platform is an electrochemical cell containing a graphite mine electrode modified with nanomaterials as the working electrode, a platinum counter electrode, and an Ag / AgCl / Cl (3M) reference electrode. To develop the working electrode for the electrochemical platform, the surface of the graphite electrode was modified with 1-pyrene carboxylic acid and reduced graphene oxide using the droplet deposition technique. Subsequently, the new active surface of the electrode was decorated with molybdenum disulfide (MOS2) nanoroses using the electrodeposition method. The results of the electrochemical study demonstrate the electrocatalytic properties of the nanomaterials used in the platform's development, as well as the strong correlation between current intensity and the concentration of the target analytes. This platform enabled the quantification of the two aforementioned analytes in real water samples with low detection limits of approximately 9.3 and 13.7 nM for hydrazine and p-nitrophenol, respectively.

This invention discloses a rapid detection method and apparatus for water pollutants based on multi-band spectroscopy, belonging to the field of water pollution detection technology. The rapid detection method and apparatus for water pollutants based on multi-band spectroscopy includes: S1, preprocessing real-time spectral detection data, equipment configuration data, and historical environmental auxiliary data; S2, outputting a determination of the separability between scattering effects and pollutant absorption effects based on scattering and absorption aliasing analysis results; S3, selecting and forming a set of effective inversion spectral bands based on spectral band reliability allocation analysis results; and S4, outputting pollutant concentration estimates and result labels based on the issuance reliability assessment analysis results. This invention solves the problem that existing water pollutant detection methods, under conditions of high turbidity or water containing bubbles, struggle to accurately distinguish the differences in spectral response caused by scattering and pollutant absorption effects in different spectral bands, easily leading to distorted detection results.

This invention belongs to the field of photocatalytic materials technology, specifically relating to a method and application of a one-step in-situ synthesis of a homo-heterojunction composite photocatalyst based on cyanophenylacetylene copper / phenylacetylene copper (CN-PhC₂Cu / PhC₂Cu). This invention achieves one-step in-situ synthesis of a homo-heterojunction composite photocatalyst with a tight interface structure under mild conditions by controlling the ratio of cyanophenylacetylene copper (CN-PhC₂Cu) to phenylacetylene copper (PhC₂Cu). This heterojunction effectively promotes exciton dissociation and photogenerated electron delocalization, significantly suppresses charge recombination, and improves visible light utilization efficiency. Experiments show that this composite photocatalyst exhibits excellent degradation performance for various water pollutants such as diclofenac (DCF) under visible light irradiation, possessing advantages such as high degradation efficiency, wide pH adaptability, and strong resistance to interference from coexisting ions. The method of this invention is simple and operates under mild conditions, providing new materials and technical support for efficient visible light-driven water pollution control.

The utility model provides a kind of groundwater pollutant treatment device, it includes: mixing box, stirring part, aeration device, apron, scraping device, collection component, two feeding hopper, filling pipe, box, filter screen, and flushing component.The utility model provides a kind of groundwater pollutant treatment device, stirring part and aeration device are arranged in the inside of mixing box cooperation apron with scraping device, collection component and with filter screen secondary filter box use, it is convenient to through two feeding hopper to chemical medicine filling to the inside of mixing box after solid-liquid separation, can the solid that floats on the surface of liquid is scraped and collected and handled, so that it can prevent the emergence influence when the next operation of liquid.

This invention discloses a composite cationic flocculant based on a dual gradient of molecular weight and charge density, along with its preparation and application methods. The flocculant is composed of a medium-molecular-weight, high-charge-density poly(diallylammonium chloride)-acrylamide copolymer (PDA) and a high-molecular-weight, medium-low-charge-density cationic polyacrylamide (CPAM), with an effective mass ratio of 10:1 to 20:1. The mass charge density of PDA is 2 to 3 times that of CPAM. A gradient shear mixing preparation process and a time-sequential synergistic flocculation application method based on differences in diffusion kinetics are employed. Through a relay effect of rapid charge neutralization (0-30 seconds) and slow bridging (30-180 seconds), the flocculant can form a skeleton-filled floc structure, achieving adaptive interception of dissolved organic matter and complexation-encapsulation and fixation of heavy metals. This invention can significantly shorten plate and frame filter press time and reduce the moisture content of the filter cake and the concentration of pollutants in the effluent.

This application provides an integrated pollutant removal device for wastewater from facility-grown fish farming, relating to the field of aquaculture technology. The integrated pollutant removal device for wastewater from facility-grown fish farming includes a treatment container with an inlet at the bottom. The outlet of the inlet is connected to the inlet of an inner cylinder. Wastewater flows through the inner cylinder to the top of the treatment container and flows out through the gap between the inner cylinder and the treatment container. The wastewater sequentially passes through a large particle impurity remover and a demister installed at the top of the treatment container before flowing counter-currently into the interior of the treatment container. The wastewater is then filtered by a multi-porous screen, a drawer-type coarse filter media, and a drawer-type fine filter media sequentially installed inside the treatment container. After dripping into a fixed fluidized bed for biological treatment, the water flows out through a siphon outlet. Vent holes are provided on both sides of the treatment container near the demister. This invention achieves efficient wastewater treatment through a combination of counter-current aeration and multi-layer filter media, facilitating rapid deployment and operation.

The present application relates to an ecological restoration method for in-situ resource utilization of contaminated pond sediment of sandy coast, and belongs to the technical field of ecological restoration and solid waste resource utilization. The method comprises the following steps: evaluating the pollution condition of the sandy sediment at the bottom of the eutrophic pond of the sandy coast; under the condition that the water pollutants exceed the standard but the greening planting soil does not exceed the standard, using the dry dredging and temporary storage method, transporting the sandy sediment to the greening planting area in the project area after excavation, and using the pretreated sandy sediment as the greening planting soil of the local sand vegetation. The present application avoids the secondary pollution caused by the external transportation of the sandy sediment, the restriction of the sand mining policy and the pollution disposal problem, reduces the cost, fully utilizes the nutrient elements in the sandy sediment to provide nutrition for the vegetation, plants the local sand vegetation, maximizes the survival rate of the vegetation, avoids the introduction of alien species to cause damage to the local ecology, and realizes the resource utilization and harmless utilization of the sandy contaminated sediment.

The invention provides a water pollutant feature extraction and recognition method, device and equipment and a storage medium, and relates to the technical field of water quality pollution detection. The method comprises the steps that fluorescence spectrum data generated by a to-be-detected water body under the specific laser excitation condition is obtained and preprocessed, quasi-single-peak interval division is conducted on the preprocessed fluorescence spectrum data, the local statistical characteristics of each quasi-single-peak interval are calculated, and the local statistical characteristics comprise the normalized skew product, the normalized skew product and the normalized skew product; the normalized skewness product is obtained according to the skewness and kurtosis of the fluorescence intensity of each quasi single-peak interval and the interval width of each quasi single-peak interval; performing spectral shape feature extraction on the preprocessed fluorescence spectrum data to obtain global spectral shape features; and inputting a comprehensive feature vector obtained by fusing the local statistical feature and the global spectral shape feature of each quasi single-peak interval into a preset water pollutant identification model to obtain a pollutant type identification result of the to-be-detected water body. According to the invention, the accuracy and stability of water pollutant identification can be improved.

The application belongs to the field of building materials, and particularly relates to a preparation method of photocatalytic cement and application of the photocatalytic cement in water purification and green ammonia preparation. The preparation method comprises PMMA etching, photocatalytic fine aggregate preparation and photocatalytic cement preparation. The photocatalytic fine aggregate is lifted to the surface layer of the material by using the high light transmission and low density characteristics of PMMA and combining with aluminum powder gas production, so that the light utilization rate and mass transfer efficiency are greatly improved. The photocatalytic cement can efficiently purify water pollutants, reduce nitrate in situ to prepare green ammonia, and can be used for preparing floating infrastructure or small equipment devices with water purification and in-situ ammonia preparation functions. The process is simple, the cost is controllable, the microstructure and cleaning function are highly customizable, and the process is easy to scale up for engineering applications.

Laboratory equipment for Hybrid Absorption-Oxidation relating to Degrading Biorecalcitrant Water Pollutants

This invention discloses a method and system for evaluating the wastewater treatment capacity of a wastewater treatment plant, belonging to the field of wastewater treatment. The method for evaluating the wastewater treatment capacity of a wastewater treatment plant includes the following steps: collecting and integrating real-time monitoring data of influent flow rate, influent pollutant concentration, and effluent pollutant concentration in each calculation cycle, and preprocessing the real-time monitoring data. Based on the formula: Total Reduction = (Influent Concentration - Effluent Concentration) × Treatment Volume in One Calculation Cycle, the total reduction of pollutants in one calculation cycle, measured in mass units, is automatically calculated, and a time series dataset is generated. Based on the time series dataset of total pollutant reduction in the calculation cycle and the energy consumption dataset of the same period, the energy consumption per unit of pollutant reduction is calculated for each calculation cycle. The beneficial effects of this invention are: this invention constructs a multi-dimensional comprehensive evaluation system, fundamentally overcoming the systematic bias caused by neglecting influent conditions in traditional methods, and significantly reducing misjudgments.

This invention relates to the field of marine aquaculture wastewater treatment technology, and discloses a modular, mobile integrated marine aquaculture wastewater treatment device and method. A spiral tube is fixedly connected to the inner side of the coagulation cylinder, and a collection box is arranged at intervals along the pitch of one side of the spiral tube. This invention achieves a positive correlation between the deflection angle of the deflection plate and the water pressure; the higher the water pressure, the larger the deflection angle, and the wider the gap between the sealing plate and the box wall, thus increasing the amount of coagulant added. When the water pressure decreases, the torsion spring resets, the gap narrows, and the amount of coagulant added automatically decreases. Based on real-time water pressure feedback, the coagulant addition is dynamically controlled without external electrical control intervention, achieving dynamic adaptive control, significantly improving the efficiency of coagulation in removing colloids and fine suspended solids, reducing pollutant emissions from aquaculture wastewater, ensuring compliant discharge and resource reuse, and providing a guarantee for the green development of the marine aquaculture industry.

Large algal compositions and methods for decolorizing and removing contaminants from textile production wastewater. The method is based on the biodegradation of dyes and organic substances in the wastewater by at least one type of green macroalgae.

This invention relates to the field of supramolecular chemistry, specifically to a fluorinated functionalized macrocyclic supramolecular host molecular cup, its preparation method, and its applications. It is a 2-difluoromethylbenzimidazole molecular cup host and its metal derivatives. By introducing a difluoromethyl group to moderately increase lipophilicity, the excellent properties of the trifluoromethyl macrocyclic supramolecular host are inherited while increasing water solubility. Furthermore, it can recognize cycloalkanes, alkyl carboxylic acids, especially n-heptanoic acid and n-octanoic acid, thus facilitating a series of molecular recognition studies in aqueous phase. Compared with existing technologies, this invention features a simple process, readily available raw materials, mild reaction conditions, high yield, and good reproducibility. The difluoromethyl-modified macrocyclic molecular cup H1 and the metal molecular cup H formed with palladium in this invention are also described. 1‑Pd It exhibits novel structure and high degree of functionalization, enhancing its molecular recognition ability and selectivity, and can be used in environmental remediation and water pollutant treatment.

This invention provides a method for degrading water pollutants based on iron-manganese intercalated montmorillonite and low molecular weight humic acid. In this method, the carboxyl groups, phenolic hydroxyl groups, and kun groups in the low molecular weight humic acid can dissolve some of the Fe in the iron-manganese intercalated montmorillonite and form Fe(II) / Fe(III)-organic complexes. These complexes can shuttle electrons from Fe(II) in the interlayer structure of the iron-manganese intercalated montmorillonite to O2, promoting the generation of reactive oxygen species. Furthermore, the kun groups in the low molecular weight humic acid can act as bridges, mediating the shuttle of Fe(II) from the interlayer structure of the iron-manganese intercalated montmorillonite to O2, thereby generating more reactive oxygen species. This achieves the goal of degrading pollutants in water. The removal rate of antibiotics in water reaches 90-98%, the removal rate of estrogen reaches 92-99%, and the removal rate of endocrine disruptors reaches 95-99%.

This utility model relates to the field of water environment management technology, specifically a floating self-cleaning water pollutant interception device. It includes a first float plate, with two sets of splicing blocks fixedly connected to the left and right sides of the front surface of the first float plate. Splicing grooves are formed on the left and right sides of the rear surface of the first float plate. Splicing holes are formed inside the splicing blocks and splicing grooves, and fixing pins are inserted into the splicing holes. A debris-blocking assembly is provided on the right side of the first float plate. The debris-blocking assembly includes a support frame, a transmission rod, a winch, an electric motor, a connecting frame, a fixing rod, a cable, a debris-blocking grid, and a stop bar. The first float plate floats the debris-blocking assembly in the water, at which point the assembly intercepts pollutants in the water. During the cleaning process, the electric motor, winch, and cable work together to lift the debris-blocking grid, thereby automatically lifting the blocked pollutants to the surface, facilitating the cleaning of pollutants on the water surface and improving the cleaning efficiency.

The application discloses a kind of water body pollutant degradation methods based on colloidal calcium peroxide, the water body pollutant degradation methods based on colloidal calcium peroxide include the following steps: colloidal calcium peroxide is mixed with the water body to be treated containing pollutant, forms mixed water body, and the pollutant is degraded by reaction.This application utilizes homogeneous nucleation method to prepare colloidal calcium peroxide, then utilizes colloidal calcium peroxide in water body by the active site of surface calcium ion and combines with pollutant, and utilizes direct electron transfer of its surface peroxide group, realizes the efficient oxidative degradation to various refractory pollutants.This application colloidal calcium peroxide degradation pollutant mechanism is mainly dominated by non-radical effect, avoids the problem that traditional free radical oxidation path is easily interfered by water body matrix, can keep efficient degradation performance in wide pH range, has good anti-interference ability.

The utility model relates to aquatic culture technical field especially discloses a kind of high-density aquaculture systems, including breeding pond;Still including the filter system, decomposition system, oxygen supply system and new water replenishment system connected with breeding pond, filter system includes filter box, filter assembly and first circulation component being set in filter box, first circulation component is used to drive water in breeding pond to flow through filter assembly and return to breeding pond, decomposition system includes the decomposition box being communicated with breeding pond, the bacteria colony carrier for decomposing organic matter in water being set in decomposition box and the second circulation component of driving water in breeding pond to flow through bacteria colony carrier and return to breeding pond. Water body is purified by filter and biological decomposition system cooperation, sufficient dissolved oxygen is ensured using high-efficiency oxygen supply mechanism, and automatic water balance and update are supplemented. Realize the efficient removal of water pollutant and the stable supply of dissolved oxygen, and then the breeding density of aquatic product can be improved.

This invention relates to the field of wastewater testing equipment technology, and discloses a wastewater pollutant detection and sampling device, including a sampler housing. A first motor is fixedly installed on the top inner side of the sampler housing, and an output spindle is fixedly installed on the drive end of the first motor. A fixing plate is fixedly installed on the upper inner side of the sampler housing. A collection chamber is fixedly installed inside the sampler housing near the lower part of the fixing plate. A negative pressure chamber is fixedly installed inside the sampler housing near the lower part of the collection chamber. A piston block is movably installed inside the negative pressure chamber, dividing the negative pressure chamber into an upper chamber and a lower chamber. An ethanol gas inlet pipe is fixedly installed on one side of the bottom inner side of the lower chamber. This invention enables graded sampling of wastewater pollutants of varying sizes, allows for multi-depth and multi-batch sampling, can suppress chemical changes of pollutants, reduce water sample dilution interference, has a high degree of automation, is easy to operate, has strong adaptability, and accurately ensures the authenticity and detection rate of the test results.