17 results about "Contaminated Substance" patented technology

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.

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 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.

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.

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 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.

The present invention relates to a modular filter and a mask comprising the same, in which external air flows in through a terminal inflow part of the filter, and passes through the filter while moving in a wide side direction of the filter, thereby extending a movement path in the filter, therefore, the limitation on the selective removal of various pollutants and the filtering function caused by the thickness of the existing filter can be improved.

This invention discloses an in-situ remediation method for polluted urban river and lake sediments based on electroosmotic volume reduction and ecological capping. The method includes the following steps: S1: Constructing a cofferdam in the urban river or lake to be remediated, draining the water covering the area to be remediated, and allowing it to air dry naturally until the sediment moisture content is below 98%; S2: Inserting an electroosmotic volume reduction device into the area to be remediated to achieve rapid drainage of pore water and reduction of pollutants; S3: After the sediment moisture content in the area to be remediated is below 80%, removing the electroosmotic volume reduction device and laying an ecological capping device on the sediment; S4: After the in-situ ecological capping device is laid, gradually restoring the river or lake water level to its normal level. This in-situ remediation method for polluted urban river and lake sediments based on electroosmotic volume reduction and ecological capping can effectively solidify and reduce the volume of sediments, reduce the release of nitrogen and phosphorus nutrients from the sediments, and achieve long-term treatment of endogenous pollution.

The application discloses an ecological remediation method for intercepting and reducing endogenous pollutants in sediments, and belongs to the technical field of sewage treatment. The steps of the remediation method comprise the following steps: firstly, mixing active materials with contaminated sediments; secondly, adding a cover layer above the mixture to intercept the pollutants; and finally, planting submerged and / or emergent plants, and harvesting the aquatic plants to reduce the total amount of pollutants. The application proposes the idea of "intercepting and reducing", that is, firstly intercepting the pollutants released from the sediments by using active materials, and then reducing the total amount of pollutants in the sediments by means of ecological remediation. Through the scheme, the concentration of pollutants in the overlying water is lower, and the reduction effect of the pollutants in the sediments is better.