36 results about "Contaminated Substance" patented technology

The application discloses a method for recovering nickel and phosphorus from electroless nickel plating waste liquid, and the method comprises the following steps: preparing nickel sulfate through extraction and stripping, and preparing iron phosphate through Fenton oxidation and precipitation; compared with the prior art, the method is characterized in that the waste liquid is pretreated, insoluble solid particles in the waste liquid are removed, emulsification of an extractant caused by particles in a subsequent extraction process is prevented, damage to extraction oil is avoided, and the extraction efficiency is ensured; in addition, the extractant used in the method can be recycled, secondary pollution is avoided, and the method is economical and practical; in the method, main pollutants in waste water are all converted into important chemical raw materials, recycling is realized, sulfuric acid and Fenton reagents used are all converted into terminal products, difficulty of end waste water treatment is not increased, clean production is met, the treatment cost is low, the product has high added value, and the method has strong practicability.

The invention discloses an intelligent monitoring method, system and device for wet-process multi-stage internal circulation purification of the Internet of Things, and relates to the technical field of wet-process purification monitoring, and the method comprises the following steps: 1, collecting multi-dimensional circulation purification data in real time, carrying out the data preprocessing, and carrying out the preliminary evaluation of the removal efficiency of pollutants; 2, constructing a cyclic purification directed flow graph, constructing a cyclic purification time sequence prediction model on the basis of the cyclic purification directed flow graph, and judging local pollutant mass accumulation and amplification according to prediction output; 3, based on the real-time local judgment result, risk assessment is conducted on the whole cycle purification process, and grading early warning measures are taken; step 4, performing intelligent visual data governance through multi-dimensional cyclic purification data and a risk assessment result; the problem that pollutants are repeatedly accumulated in subsequent circulation to form local abnormal sources due to the fact that the efficiency of part of treatment units is reduced in the purification process is solved.

The application discloses a preparation method of a specific adsorption material for solving heavy metal endogenous pollution in water bodies. The specific ecological adsorption material is mainly made of ecological materials such as chitosan, natural clinoptilolite and specific adsorption material for specific pollutants in specific areas, and has the function of treating various endogenous pollutants in river channels. The specific ecological adsorption material uses natural clinoptilolite to enhance the mechanical strength of the chitosan hydrogel material, so that it can still maintain a stable cross-linked network structure under the action of a certain hydraulic intensity and external force, and provides a loading site for the specific adsorption material for specific pollution. The chitosan and natural clinoptilolite in the specific ecological adsorption material have strong fixing capacity for heavy metal pollution, and in addition, the natural clinoptilolite also has strong adsorption performance for organic pollutants such as ammonia and nitrogen; and the loading of the specific adsorption material can realize targeted removal of certain pollutants in the environment.

The application discloses a kind of quantitative tidal river section pollutant flux analysis method, comprising the following steps: S1, the equation of concentration variation of pollutant is established;S2, the water flux equation of river section at the time period to be studied is established;S3, based on water flux equation and the equation of concentration variation of pollutant at the section, the pollutant flux equation of river section at the time period to be studied is established;According to the pollutant flux equation, the hourly flux of pollutant at the section at the time period to be studied is calculated.The application can calculate the hourly variation process of pollutant concentration which sufficiently reflects the concentration oscillation caused by reciprocating flow by inputting tidal level and limited concentration data into the equation of concentration variation of pollutant, and based on the hourly variation data of pollutant concentration, the pollutant flux at the section at a certain time period in the future can be calculated hourly according to the pollutant flux equation, and finally the total pollutant flux at the section per day can be counted, which provides scientific support for water safety decision-making of city managers.

The application discloses a mineral adsorbent and a preparation method thereof. The prepared mineral adsorbent is composed of illite powder, zeolite powder, fly ash, coal gangue powder, dolomite powder and calcium carbonate. The preparation method comprises the following steps: S1, crushing illite, zeolite, coal gangue and dolomite to obtain illite powder, zeolite powder, coal gangue powder and dolomite powder; S2, putting the illite powder, zeolite powder, fly ash, coal gangue powder, dolomite powder and calcium carbonate into a mixer to wet grind to obtain mixed wet materials; and S3, putting the mixed wet materials into a calciner to calcine to obtain the powder-shaped mineral adsorbent. The application has a high removal rate for pollutants in waste gas, can effectively reduce the concentration of dioxin, particulate matter, nitrogen oxides, sulfur dioxide, carbon monoxide, mercury, cadmium, thallium and compounds thereof, antimony, arsenic, lead, chromium, copper, cobalt, manganese and nickel compounds in incineration waste gas.

The present invention to is directed to a piezoelectric mechanochemical decontamination system. The system includes a piezoelectric material, impact medium, and dynamic impact device having a receiving chamber that receives the piezoelectric material, impact medium, and a PFAS-contaminated substance having a solid-and / or semi-solid-state PFAS. The dynamic impact device causes the impact medium to collide with the piezoelectric material to thereby cause a piezoelectric reaction that converts one-hundred percent of fluorine included in the PFAS-contaminated substance to fluoride and thereby converts the PFAS-contaminated substance to a decontaminated substance that is environmentally safe for disposal. The piezoelectric material is present at a molar ratio of at least 5:1 compared to the fluorine. The piezoelectric material includes boron nitride. The impact medium includes stainless steel or zirconium. The dynamic impact device is a planetary ball mill device, tumbler mill device, attritor mill device, or vibratory ball mill device.

The present invention to is directed to a piezoelectric mechanochemical decontamination system. The system includes a piezoelectric material, impact medium, and dynamic impact device having a receiving chamber that receives the piezoelectric material, impact medium, and a PFAS-contaminated substance having a solid-and / or semi-solid-state PFAS. The dynamic impact device causes the impact medium to collide with the piezoelectric material to thereby cause a piezoelectric reaction that converts one-hundred percent of fluorine included in the PFAS-contaminated substance to fluoride and thereby converts the PFAS-contaminated substance to a decontaminated substance that is environmentally safe for disposal. The piezoelectric material is present at a molar ratio of at least 5:1 compared to the fluorine. The piezoelectric material includes boron nitride. The impact medium includes stainless steel or zirconium. The dynamic impact device is a planetary ball mill device, tumbler mill device, attritor mill device, or vibratory ball mill device.

Provided are a water quality measurement system and a water quality measurement method, which suppress the generation of pollutants from a device structure such as a switching valve and can measure the water quality of treated water of a measurement object with high precision. The water quality measurement system (10) comprises: a first pipe (11) for circulating first treated water; a first branch pipe (11a) branching from the first pipe (11) and having a first valve (V11); a second pipe (12) for circulating second treated water; a second branch pipe (12a) branching from the second pipe (12) and having a second valve (V12); a third pipe (13) connected to the first pipe (11) and the second pipe (12) for circulating the first treated water and the second treated water; and a water quality measurement device (14) for measuring the water quality of the treated water circulating in the third pipe (13).

A method of treating or remediating contaminated material, such as water or soil, comprises contacting such material with asphaltenes. The asphaltenes are preferably produced as a by-product of petroleum refining and, in particular, a by-product of vacuum residua. An adsorbent material comprising such asphaltenes is also provided.

The invention relates to the technical field of data processing, and provides a pollution analysis method, device and equipment and a storage medium, and the method comprises the steps: obtaining the pollutant content, the pollutant type and environmental parameters of a specific environmental region; performing time sequence sorting on the pollutant content, generating a time sequence chart, performing correlation analysis on the time sequence chart and the environmental parameters to obtain a quantitative pollution degree, and analyzing the preliminary inspection result and the quantitative pollution degree to obtain a preliminary pollution analysis report; performing time sequence analysis on the preliminary pollution analysis report to obtain a corrected checking result; and analyzing the corrected checking result and the quantitative pollution degree to obtain a target pollution analysis report. Through the above scheme, the accuracy of pollution trend prediction is improved, the accurate identification of the pollution source is realized, and the problems of low data processing efficiency and insufficient prediction precision during long-time trend prediction and accurate identification of the pollution source are improved.

The present invention provides a floating pollutant recovery device and a floating pollutant recovery system that can efficiently recover floating pollutants from environmental water taken into a ship. In the present invention, a floating pollutant recovery device (40) installed on a ship (2) and recovering floating pollutants contained in environmental water taken into the ship (2) includes: a recovery filter (41) disposed in a backwash drain line (L4) through which backwash drain water flows after backwashing a filter (120) of a filter device (12) that filters environmental water; and a clean water supply mechanism (50) that supplies clean water to the recovery filter (41).

This application relates to the field of ecological environment restoration technology, and in particular to a wetland ecological restoration and environmental management device, comprising a floating mechanism, an aeration mechanism, a material throwing mechanism, and a control mechanism. The floating body carries the aeration and material throwing mechanisms and floats on the water surface. The aeration mechanism is used to introduce oxygen into the water, and the material throwing mechanism is used to release oxygen-releasing elements into the water. The oxygen-releasing elements fall into the silt layer at the bottom of the water body, and dissolve and release oxygen in the water to increase the oxygen content. The control mechanism is used to control the operation of the aeration and material throwing mechanisms. In this application, through the coordinated operation of the aeration and material throwing mechanisms, the wetland water body can maintain a high oxygen content for a longer period of time, thereby restoring and enhancing the vitality of aerobic microorganisms in the water, purifying pollutants in the water, improving the water quality of the wetland, eliminating black and odorous water, and thus achieving the purpose of wetland ecological restoration and environmental management.

The present application relates to river management technical field, especially a kind of river water quality purification collaborative management system.Its technical scheme includes body, crushing structure, aeration structure and conveying structure, crushing structure, including crushing chamber, crushing roller distributed in crushing chamber interior, shaft located at the both ends of crushing roller, motor one located at the side of body;Conveying structure, including installation pipe, motor two located at the one end of installation pipe, auger located at the output end of motor two and installed in the inside of installation pipe;Aeration structure, including intermittent gear, installation frame sleeved on the outside of intermittent gear, guide rod located at the both ends of installation frame, air cylinder located at the side of body, aeration box located in the inside of body, piston located at the one end of guide rod.The present application solves the problem that it is laborious and inefficient to clean floating foreign matter by workers through the cooperation between crushing structure and conveying structure, cooperates with aeration structure and purification container, reduces the pollution of nitrogen, phosphorus and other pollutants to water source.

The utility model relates to a sewage treatment integrated device based on an AAO principle. The sewage treatment integrated device comprises a deslagging and sand setting unit, an A-A-O biological treatment unit, a precipitation unit, a coagulation filtering unit and a disinfection water outlet unit which are sequentially communicated along the water flow direction, the deslagging and sand setting unit is used for removing scum and sand grains in the sewage and introducing the sewage into the A-A-O biological treatment unit; the A-A-O biological treatment unit is used for removing pollutants such as carbon, nitrogen and phosphorus in the sewage treated by the deslagging and sand setting unit through activated sludge; the precipitation unit is used for separating gas and cement in the mud-water mixed liquid treated by the A-A-O biological treatment unit; the coagulation and filtration unit is used for further removing suspended matters and soluble pollutants in the supernate precipitated and separated by the precipitation unit; and the disinfection water outlet unit is used for disinfecting and sterilizing the outlet water filtered by the coagulation filtering unit, and storing and discharging the outlet water. The utility model has the advantages of compact structure, improved working efficiency, saved engineering investment and land occupation, low operation cost and good treatment effect.

The invention discloses a semiconductor device processing device with a detection function, which belongs to the technical field of semiconductor device processing and comprises a machine body and an ultrasonic cleaning tank arranged at the top in the machine body. Leaking holes are uniformly formed in the positions, corresponding to the lower portions of the wafers in the flower basket, of the bottom of the ultrasonic cleaning tank, all the wafers are independently separated in cooperation with the separating mechanism on the cover plate, and high-purity water precise flushing after ultrasonic cleaning is achieved in combination with the spraying mechanism; the sample extraction mechanism and the sample conveying mechanism can extract a cleaning liquid sample on line, detection of pollutants such as metal ions is directly completed through the inductively coupled plasma mass spectrometer, pollution detection can be completed without taking out a wafer, the necessary air drying step and the wafer transfer link in a traditional process are thoroughly omitted, and the detection efficiency is improved. The whole process period from cleaning to detection is greatly shortened, the risk of secondary pollution is eliminated from the source, and the accuracy and reliability of a detection result are ensured.

The invention discloses a purification treatment method for clean discharge of kitchen garbage sewage, and relates to the technical field of kitchen garbage sewage treatment, and the purification treatment method comprises the following steps: separation and concentration of kitchen garbage sewage: before sewage in kitchen garbage is treated, the sewage is separated from solid garbage in an extrusion manner, and the separation manner mainly comprises extrusion and centrifugation. In the treatment process, precipitation, filtration, oxygen deficit, flocculation and biological treatment react with various substances in sewage to generate sludge, the sewage and the sludge are separated, and then the sewage is filtered through a glass fiber filter screen, a plant fiber filter screen, an activated carbon layer, a non-woven fabric layer and a ceramsite layer, so that impurities and sludge in the sewage are removed as much as possible, and the sewage treatment efficiency is improved. According to the method, the sewage is treated more carefully, various pollutants in the sewage are removed as much as possible through multiple working procedures, deep purification of the sewage is achieved, and pollution of the sewage to the environment is reduced to the maximum extent.

Methods and co-cultures for biodegrading contaminants are described. A method can include contacting a contaminated substance with a microbial mixture under anaerobic conditions and causing degradation of contaminants by metabolism of the microbes in the microbial mixture. The co-culture can include aerobic microbes like Pseudonocardia and related genera along with anaerobic microbes of Dehalococcoides and related genera.

The present invention provides a substrate processing apparatus capable of effectively removing contaminant substances from an edge region of a substrate. The substrate processing apparatus includes a support stage that rotates a substrate; a first tank disposed around the support stage, storing a cleaning liquid and having a first opening portion formed on an upper surface; and a first ultrasonic oscillator disposed in the first tank and providing ultrasonic waves toward a surface of the cleaning liquid exposed by the first opening portion to form a first water film protruding from the surface of the cleaning liquid, the substrate not being immersed in the first tank, the edge region of the substrate being cleaned by the protruding first water film during rotation of the substrate by the support stage.

The invention relates to a method for separating and recycling rare earth and a leaching agent in rare earth-containing bioleaching liquid, which is characterized by comprising the following steps: 1) obtaining the bioleaching liquid rich in rare earth; 2) removing impurities; 3) activating a coordination chemical bond; 4) activating the transformation material; (5) fracture and reconstruction of coordinate bonds; and 6) cyclic utilization. Based on the principles of activation, fracture, reconstruction and the like of a bioleaching agent-rare earth coordination chemical bond, rare earth elements in the bioleaching agent can be efficiently separated and recovered (the rare earth recovery rate is close to 100%) in a transformation separation mode; in the rare earth separation and recovery link, a bioleaching agent-rare earth coordination chemical bond is broken, transformation of a rare earth bioleaching agent and selective separation of rare earth elements are achieved, the bioleaching agent is reserved in a solution and can be used for subsequent leaching of rare earth raw materials, and recycling of the bioleaching agent is achieved (the regeneration rate is close to 100%); chemical reagents do not need to be added, so that introduction of environmental pollution substances is avoided; the method is simple in equipment and operation, good in effect, low in cost, environment-friendly and convenient for large-scale industrial application.

This invention relates to the field of electronic technology and discloses a method, apparatus, and equipment for quantitatively evaluating the degree of groundwater intrusion in a single section of sewage pipeline. The method uses a first water quality concentration, a third water quality concentration, and a second water quality concentration to solve a pre-constructed first mass balance equation, obtaining a first ratio between the groundwater intrusion amount of the pipeline section to be evaluated and the pipeline inlet flow rate. It then uses a first water quality concentration, a fourth water quality concentration, and a fifth water quality concentration to solve a pre-constructed second mass balance equation, obtaining a second ratio between the groundwater intrusion amount in the upstream sewage area of ​​the pipeline section to be evaluated and the sewage volume in that area. Based on the first ratio, the second ratio, and a preset ratio, the groundwater infiltration rate is calculated. Based on the groundwater infiltration rate, the degree of groundwater intrusion in the pipeline section to be evaluated is quantitatively evaluated, yielding an evaluation result. Based on the principle of pollutant mass balance, this method enables the analysis of groundwater intrusion in high-full-water-level sewage pipelines under conditions without flow monitoring.

The invention discloses a UPLC (Ultra Performance Liquid Chromatography)-Q-Orbitrap (Quantitative Orbitrap) screening method for multi-structure type new pollutants in sediments or soil. The method comprises the following steps: firstly, determining UPLC-Q-Orbitrap-HRMS instrument analysis conditions aiming at the multi-structure type new pollutants, optimizing a pretreatment method of a sample, then constructing a mass spectrum database of the multi-structure type new pollutants, carrying out analysis and data acquisition on an actual sediment or soil sample on the basis of the determined UPLC-Q-Orbitrap-HRMS instrument analysis conditions and the pretreatment method, and finally determining a mass spectrum of the multi-structure type new pollutants. And determining the matched multi-structure type new pollutants by using the determined screening standard. Based on the UPLC-Q-Orbitrap-HRMS technology, a broad-spectrum analysis method for qualitative screening before quantification is established, and the method is based on the high-resolution mass spectrum, adopts a unified instrument analysis and extraction process, and can be used for rapidly identifying various types of new pollutants with different structures in environmental sediments and soil at the same time.

This invention discloses an ecological ditch system for improving the treatment of non-point source pollution in receiving water bodies. The system includes a housing with an inlet and a filter box located below the inlet. A main shaft is rotatably connected inside the housing, and a support base is fixedly connected to the main shaft. The support base has several grooves, within which splined sleeves are movably mounted. A splined shaft is slidably connected within the splined sleeves, and the splined shaft is fixedly connected to the filter box and rotatably connected to the support base. This device removes some pollutants through multi-stage filtration and the metabolic activity of plant roots, achieving high purification efficiency and effectively managing non-point source pollution in water bodies.

The present invention to is directed to a piezoelectric mechanochemical decontamination system. The system includes a piezoelectric material, impact medium, and dynamic impact device having a receiving chamber that receives the piezoelectric material, impact medium, and a PFAS-contaminated substance having a solid-and / or semi-solid-state PFAS. The dynamic impact device causes the impact medium to collide with the piezoelectric material to thereby cause a piezoelectric reaction that converts one-hundred percent of fluorine included in the PFAS-contaminated substance to fluoride and thereby converts the PFAS-contaminated substance to a decontaminated substance that is environmentally safe for disposal. The piezoelectric material is present at a molar ratio of at least 5:1 compared to the fluorine. The piezoelectric material includes boron nitride. The impact medium includes stainless steel or zirconium. The dynamic impact device is a planetary ball mill device, tumbler mill device, attritor mill device, or vibratory ball mill device.

The present application relates to the technical field of pollutant screening. Disclosed are a method and system for identifying organic pollutants in soil on the basis of a combination of AI and high-throughput screening. The method comprises: extracting substance peaks from high-resolution mass spectrometry data of a soil sample; constructing an organic pollutant mass spectrometry database, extracting spectrum features and structural features of compounds from the organic pollutant mass spectrometry database, constructing a molecular fingerprint prediction model, and establishing a spectrum-to-structure mapping relationship; on the basis of the extracted substance peaks, constructing spectrum vectors to predict molecular fingerprints, and acquiring candidate chemical structures by searching the organic pollutant mass spectrometry database; and scoring the candidate chemical structures by means of the predicted molecular fingerprints, selecting chemical structures that meet a preset standard, constructing an identification basis on the basis of the selected chemical structures, and acquiring an organic pollutant identification result for the soil sample. In the present application, non-targeted intelligent analysis is performed by means of the synergistic integration of artificial intelligence and mass spectrometry analysis, thereby realizing the rapid and accurate identification of organic pollutants in soil.

The invention discloses a control method and system for electroplating wastewater discharge, and the method comprises the steps: carrying out the analysis and recognition of an electroplating process, obtaining the technological parameters of each process, carrying out the sampling detection in a discharge pipeline corresponding to each process, and obtaining the first detection data of a corresponding pollutant; according to the process parameters, based on a stoichiometric model, the putting amount is obtained, reaction substances with the corresponding putting amount are put into the corresponding discharging pipelines for reaction, sampling detection is conducted after the reaction is sufficient, and second detection data are obtained; constructing a prediction model based on the process parameters, the first detection data, the actual delivery amount and the second detection data; and inputting the process parameters detected in real time into the prediction model to obtain the predicted putting amount of the reaction substance. By means of the mode, more accurate dosing control can be achieved, the treatment efficiency of the electroplating wastewater is effectively improved, and the dosing cost is controlled.

This invention discloses a method for identifying pollution sources in lake water bodies, belonging to the field of water pollution prevention and control technology. The method includes the following steps: sampling rocks containing pollutant elements in strata near the lake basin, groundwater flowing into the lake, surface water flowing into the lake, surface water sediments, and bottom sediment and overlying water at the lake inlet; measuring the collected samples; and comparing the analytical results of various pollutants with those obtained from a watershed non-point source pollution survey to identify the pollution sources in the lake water body. This invention, through investigation, sampling, and analysis, summarizes the occurrence state, weathering migration and transport patterns, and distribution characteristics of potential pollutants in the lake watershed under regional geological processes. It then determines the impact of potential pollutants, particularly major pollutants such as nitrogen and phosphorus, on lake water quality under different geological backgrounds, thereby accurately identifying the pollution sources in the lake water body.

The invention provides a method for farmland soil remediation and soil fertility improvement, and relates to the technical field of soil pollution treatment. Comprising the following steps: detecting the type and concentration of heavy metal ions in target soil, and determining pollutants; according to the identified pollutant types, corresponding biochar is selected as a remediation material; each pollutant is divided into light pollution, medium pollution and heavy pollution according to pollution conditions, and the dosage of the repair material is matched; and applying the repairing material with matched dosage and type into the soil. According to the method, soil pollution is treated by adopting materials with small environmental risks, and treatment and improvement of farmland soil are both considered. The biochar is used as a farmland soil conditioner, so that soil carbon sequestration can be realized, and carbon sink benefits can be extended. In addition, by applying the biochar in the method, soil can be restored, soil fertility can be improved, short-time adsorption and long-acting slow release of the chemical fertilizer can be achieved, and the use amount of the chemical fertilizer and agricultural non-point source pollution caused by loss of the chemical fertilizer are reduced.

The embodiment of the invention provides an air purification treatment method and device, electronic equipment and a storage medium, and the method comprises the steps that in response to an air purification operation instruction, air detection information is obtained; determining pollutant information based on the air detection information; performing area identification based on the pollutant information and the air detection information, and determining a target pollution type; tracing based on the target pollution type, and determining the position of a pollution source; performing path identification based on the concentration of the characteristic substance and the position of the pollution source, and determining a pollution propagation path; and performing air purification based on the pollution propagation path. According to the embodiment of the invention, accurate tracing can be realized, air purification can be carried out on a pollution source, and the air purification effect is improved.

The present application provides a kind of subsurface wetland sewage treatment system and method, the system includes microbial in-situ reactor and subsurface wetland, and the microbial in-situ reactor is communicated with subsurface wetland.The present method includes the following steps: the sewage to be treated is divided into first sewage to be treated and second sewage to be treated after preliminary sedimentation storage, and the first sewage to be treated is used to activate microorganism under the action of nutrient agent, to obtain first treatment mixed liquor;The first treatment mixed liquor is introduced into subsurface wetland, and the second sewage to be treated is treated by the first treatment mixed liquor, to obtain treated sewage.The present application combines microbial in-situ reactor, which not only increases the dissolved oxygen in water body, but also rapidly increases the content and activity of microorganism in the system, to improve the treatment efficiency of the system on pollutants.

The present innovation focuses on a method for cleaning up groundwater containing polluting substances having a density of less than 1 g / cm3, such as hydrocarbons. This proposition presents a novel method for removing the layer of floating contaminants based on skimming technology. The method consists in heating the contaminated saturated area until the required temperature is reached, for a time sufficient to reduce the viscosity of the contaminants constituting the floating layer. Skimming technology focuses on the accurate extraction of this floating layer. The present invention aims to combine the use of solar energy for heating the contaminants present in the floating layer of the saturated area, with the skimming method. This aims to optimize the treatment time of the saturated area by heating the contaminants, thus increasing their mobility in order to facilitate their extraction by skimming.