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52 results about "Inorganic pollutants" patented technology

Inorganic Material. Inorganic materials — in particular heavy metals like arsenic, mercury, copper, chromium, zinc and barium — though harmless in very small concentrations, act as pollutants when they end up concentrated in water.

Pollutant identification and early warning method and system for river patrol pollution source

The invention relates to the technical field of river pollution identification, in particular to a pollutant identification and early warning method and system for a river patrol pollution source, and the method comprises the steps: constructing a three-dimensional monitoring network system, so as to build a three-dimensional data collection architecture; establishing a space-time reference unified framework to realize synchronous time service of different monitoring nodes; deploying an edge computing node, and implementing data preprocessing at an equipment end of the monitoring node; constructing a pollutant feature library which comprises spectral features, water quality parameter correlation features and visual morphological features of river pollutants, and establishing a water quality parameter correlation model of organic pollutants and inorganic pollutants, which comprises a plurality of feature dimensions; and a self-adaptive threshold early warning mechanism is established, a space-time composite early warning model is constructed, and accurate positioning and hazard degree grading early warning of pollution events are realized. According to the invention, through the hierarchical fusion model of technology fusion, the precision and speed of identifying the river pollutants are improved.
Owner:浙江菲达环保科技股份有限公司

Groundwater pollution early warning index determination method and system for sea-land interaction zone chemical industry park

The invention discloses a sea-land interaction zone chemical industry park groundwater pollution early warning index determination method and system, and the method comprises the steps: building a pollutant directory according to the hydrogeological conditions of a chemical industry park, and dividing the pollutant directory into inorganic pollutants and organic pollutants; constructing an entropy weight method-mathematical fuzzy evaluation model to carry out comprehensive evaluation on the inorganic pollutants to obtain an index sequence of the inorganic pollutants; evaluating the exposure potential EP and the toxicity potential HP of the organic pollutants according to the actually measured data of the organic pollutants and considering various evaluation parameters of the organic pollutants; obtaining final organic pollution indexes according to the EP and the HP of the organic indexes, and sorting the final organic pollution indexes; and according to the sorting result of the inorganic pollution indexes and the organic pollution indexes, determining the early warning indexes of the inorganic and organic pollutants in the underground water in the chemical industry park by combining the underground water quality standard. According to the method, objectivity and scientificity of pollutant identification are improved, and the problems that current pollution index selection is high in subjectivity, single in evaluation dimension, poor in regional applicability and the like are solved.
Owner:WUHAN UNIV

Method for evaluating soil pollution hazard based on ecological risk index

The invention discloses a method for evaluating soil pollution hazards based on ecological risk indexes in the technical field of ecological protection, which comprises the following steps: sampling soil in a target area to obtain sampled soil; the method comprises the following steps: collecting the concentration value of pollutants in sampled soil, and determining the basic toxicity coefficient of the pollutants by utilizing a toxicological experiment; constructing a basic toxicity coefficient dynamic correction model to obtain a dynamic toxicity response coefficient of the pollutant concentration value; and constructing an environment factor interaction model. According to the method, the multi-source data is composed of the concentration value and the pH value of the inorganic pollutant and the concentration value of the organic matter, and through fusion and nonlinear modeling of the multi-source data, the problems of weight solidification and neglect of spatial heterogeneity in a traditional method can be solved; the evaluation scientificity, accuracy and operability of the soil pollution risk in the target area can be improved, and the influence of the toxicity of the pollutants on the soil pollution hazard can be effectively evaluated by fusing the synergistic and antagonistic effects among the pollutants.
Owner:重庆市生态环境监测中心

Gas distribution flow guide type adsorption and catalysis integrated equipment

The invention relates to the technical field of purification treatment equipment, and discloses gas distribution flow guide type adsorption catalysis integrated equipment which comprises a base, a gas inlet column fixedly connected to the top of the base, a treatment tank fixedly connected to the top of the base, an ethanol liquid tank fixedly connected to the top of the base and a combustion chamber fixedly connected to the top of the base. Dust and particulate matter in VOCS can be filtered and separated, the gas separating and filtering efficiency can be improved, VOCS gas is evenly distributed on the surface of the filter plate, the situation that the local flow speed of the gas on the filter plate is too high or too low is avoided, the filtering efficiency is improved, and the VOCS gas can be separated and filtered through the filter plate. Organic pollutants, peculiar smell substances and part of inorganic pollutants in the VOCS gas can be effectively adsorbed, so that the gas can be more fully contacted with the surface of the activated carbon plate II, the adsorption efficiency is improved, and the filtration stability is improved.
Owner:江苏洋井环保服务有限公司

A wastewater treatment device for corrugated paper printing

This invention discloses a wastewater treatment device for corrugated paper printing, specifically relating to the field of wastewater treatment technology. It includes a treatment cylinder with an inlet valve fixedly connected to its upper end. A pretreatment structure is provided on the upper part of the inner surface of the treatment cylinder, a separation structure is provided in the middle of the inner surface, and an ultrafiltration structure is provided on the lower part of the inner surface. The wastewater treatment device of this invention agitates the wastewater through the buffering and stirring action of the pretreatment structure. Combined with flocculant added through a feeder and feed pipe, it precipitates corrugated paper fibers, ink, and other substances in the wastewater into solid suspended matter, which is then sent to the separation structure. The separation structure promotes the separation of wastewater, oily substances, and solid waste, reducing the proportion of insoluble substances in the wastewater. Through the cooperation of the separation structure and the ultrafiltration structure, the wastewater is further adsorbed and filtered in the ultrafiltration structure, reducing the content of inorganic pollutants in the wastewater.
Owner:JIANGSU TONGHAO ENVIRONMENTAL PROTECTION TECH CO LTD

Gas-phase pollutant full-species high-sensitivity online mass spectrometer and detection method

The application discloses a kind of gas-phase pollutant full-species high-sensitivity online mass spectrometer and detection method, it is related to mass spectrometry technical development technical field.Mass spectrometer includes high-energy photoionization ion source structure, ion transmission structure and mass spectrum detection structure.High-energy photoionization ion source structure includes high-energy photon generation structure, sample introduction tube and ionization chamber, high-energy photon generation structure utilizes neon discharge to generate high-energy photon, high-energy photon is mixed with the gas to be measured that enters through sample introduction tube in ionization chamber, and the gas to be measured is ionized;Ion transmission structure is equipped with radio frequency quadrupole rod, for filtering the large amount of N2 + And O2 + Non-target background ions generated when measuring air;Mass spectrum detection structure is equipped with pulse-compensation double-electrode ion removal device, for further removing non-target background ions, relieving the measurement saturation and loss of ion detector.The application can realize the full coverage high-sensitivity detection of all gas-phase organic and inorganic pollutants in atmosphere.
Owner:UNIV OF CHINESE ACAD OF SCI

A hydrophilic round square membrane bed biological purification system and method

The application discloses a hydrophilic round square membrane bed biological purification system and method, which comprises an aerobic main body reaction unit, one end of the aerobic main body reaction unit is provided with a unit inlet overflow pipe part, and the other end is provided with a unit outlet overflow pipe part, a water passing arc wall part is arranged in the aerobic main body reaction unit, the water passing arc wall part comprises a front area mixed medicine arc wall part, a interception and filtration purification arc wall part and a rear area mixed medicine arc wall part, a water round square membrane bed part is arranged between the front area mixed medicine arc wall part and the interception and filtration purification arc wall part, an air inlet of the water round square membrane bed part is connected with an aeration oxygen supply part, and air inlets of the front area mixed medicine arc wall part and the rear area mixed medicine arc wall part are connected with front and rear arranged medicine adding parts; the application can efficiently and quickly and with energy saving and low consumption deal with organic or inorganic pollutants with normal chain functional groups which are carried in water.
Owner:YANGTZE ECOLOGICAL ENVIRONMENTAL PROTECTION GRP EAST CHINA CO LTD +1

A system and method for collecting gaseous volatile components in asphalt

The application provides a collection system and method of gaseous volatile components in asphalt. The temperature-controllable asphalt emission detection and collection system developed by the application can realize sampling of gaseous volatile components in the whole life cycle of typical asphalt materials, and simultaneously uses a gas detector to detect and analyze TVOC, SO2, CO and other gaseous inorganic pollutants, thereby enhancing the completeness of asphalt emission detection. Based on the scheme, the sample can be quickly collected for subsequent analysis and use, and the application has small occupied area and is convenient to maintain.
Owner:SHANGHAI UNIV

Composition and method for municipal and industrial wastewater treatment

A method for municipal and industrial wastewater treatment makes use of polymetallic salts on their own, or in conjunction with coagulating and / or flocculant agents, and / or other chemical agents for the separation of both organic and inorganic pollutants present in water. The method of treatment has three stages (chemical reaction, clarification, and filtration) and comprise the steps of receiving wastewater to be treated from a wastewater source into a reaction tank and dosing the wastewater received with reagents within the reaction tank. The wastewater received, and reagents are agitated to facilitate a reaction within a predetermined period of time. The wastewater and reagents are then transferred to a precipitation tank where any precipitation formed separates out of solution and is disposed. Once the precipitation is removed, the wastewater is transferred to a sedimentation tank and optionally filtered. The treated wastewater is stored in a storage tank until ready to be used.
Owner:DYASA AMBIENTAL SA DE CV

Wastewater pretreatment method based on wet oxygen method

The invention discloses a wastewater pretreatment method based on a wet oxygen method, and particularly relates to the field of wastewater treatment.The wastewater pretreatment method comprises the steps that all wastewater sources are sampled and calibrated, the content and proportion of organic pollutants, inorganic pollutants and characteristic pollutants in wastewater are analyzed, meanwhile, reference indexes of the wastewater are measured, and an analysis result is obtained; and the wastewater is classified according to an analysis result. According to the scheme, through two-stage operation of the wet oxygen reactor, ring opening and chain scission reactions of macromolecular organic matters are realized, and micromolecules are further oxidized and mineralized into inorganic products; in the first stage, the generation efficiency of hydroxyl radicals is optimized by utilizing temperature and pressure, and complex organic matters are decomposed according to time-sensitive reaction characteristics; in the second stage, micromolecule mineralization is accelerated by increasing the temperature, and residues of organic pollutants are reduced to the maximum extent; the problem that an existing wet oxygen method is not high in treatment efficiency under a single condition is solved, and the removal effect of organic pollutants in wastewater is improved.
Owner:HUANGSHI HULI ENVIRONMENTAL PROTECTION & ENERGY SAVING IND TECH RES INST CO LTD +2

Novel anti-aging material for high-altitude shock insulation support and preparation method of novel anti-aging material

PendingCN120699440ACrazingVulcanization
The invention provides a novel anti-aging material for a high-altitude shock insulation support and a preparation method of the novel anti-aging material, and the novel anti-aging material is prepared from the following raw materials in percentage by mass: 85-90 wt% of silicon rubber, 1-2 wt% of nanoscale silicon dioxide, 3-5 wt% of micron-sized calcium carbonate, 0.5-1.5 wt% of anatase type titanium dioxide, 0.1-0.3 wt% of fluorosilicone modified nano aluminum oxide, 1-1.5 wt% of an oxide vulcanizing aid and 1-2 wt% of an anti-aging agent. Therefore, the prepared novel anti-aging material has excellent organic / inorganic pollutant adhesion and wear resistance in high-altitude strong ultraviolet, high sandstorm and extreme temperature change environments, the surface hydrophobicity effectively reduces moisture permeation and microcrack propagation, the thermo-oxidative aging resistance is synergistically improved through a stable cross-linked network and a composite anti-aging system, and the anti-aging performance of the material is greatly improved. And finally, excellent elasticity, good strength and stable shock insulation efficiency are realized, and the service life of the shock insulation support in a severe environment is prolonged.
Owner:TIBET ZHENYU SHOCK ABSORPTION TECH CO LTD

Method for preparing TiO2 working electrode through cooperation of double chemical corrosion

The invention discloses a method for preparing a TiO2 working electrode through double chemical corrosion synergy, which comprises the following steps of: firstly, creating an activated surface through pretreatment, and removing inorganic pollutants remained on the surface to obtain a titanium sheet a; the preparation method comprises the following steps of: performing weak chemical corrosion on a titanium sheet a to increase the surface roughness of the titanium sheet a, introducing a high-polarity oxygen / hydroxyl-containing functional group to the surface of the titanium sheet a to obtain a titanium sheet b, performing strong chemical corrosion on the titanium sheet b by adopting a NaOH solution, and performing chemical conversion and nanoscale reconstruction to form a layer of brand-new TiO2 porous micro-texture film with a huge specific surface area. The surface of the TiO2 is rich in polar Ti-OH hydroxyl, so that the high-sensitivity TiO2 working electrode is obtained; and finally, integrating the TiO2 working electrode and a specially-made metal reference electrode into the super-hydrophilic pH sensor. According to the preparation method, the microtexture on the surface of the electrode can be refined, the purity of TiO2 on the surface can be improved, and the working electrode which is good in environmental adaptability to an unsaturated solution and highly sensitive to the pH value can be prepared by increasing the specific surface area and increasing the number of surface hydroxyl groups participating in pH response.
Owner:NANTONG INST OF TECH

Efficient glass substrate cleaning agent and preparation method thereof

The invention discloses an efficient glass substrate cleaning agent which comprises the following components in percentage by mass: 5-8% of sodium cumenesulfonate, 1.0-1.5% of terephthalic acid, 3-5% of dipropylene glycol monomethyl ether, 0.5-1% of polyethylene glycol, 1.2-1.5% of barbital sodium, 0.15-0.18% of hydrochloric acid, 0.05-0.07% of a Kathon preservative, 5-7% of a glass substrate protective agent, 6-8% of a metal complexing agent, 0.05-0.2% of a surfactant and the balance of pure water. By adding the pH buffering agent composed of the barbital sodium and the hydrochloric acid, the pH value of the cleaning agent is maintained to be about 7.0, and the stability of the cleaning effect is kept; and the compound metal complexing agent is added, so that cleaned metal impurities are efficiently complexed, and the service life of the cleaning agent is further prolonged. The glass cleaning agent can effectively decompose grease, remove particles, reduce static electricity and remove inorganic pollutants, and has no corrosion effect on glass.
Owner:SUZHOU BOYANG CHEM

Nanocomposite for the immobilization or degradation of pollutants

A particulate nanocomposite material comprising, as determined by X-ray diffraction (XRD): an orthorhombic CaB2O4 crystalline phase; a triclinic MnMgB2O5 crystalline phase; and, a Ca3B2O6 crystalline phase. The particulate nanocomposite material has, based on the total number of atoms in the nanocomposite material: an atomic concentration of carbon (C) of from about 0.1 to about 5 atom %; an atomic concentration of calcium (Ca) of from about 5 to about 15 atom %; an atomic concentration of boron (B) of from about 1 to about 10 atom %; an atomic concentration of manganese (Mn) of from about 5 to about 15 atom %; and, an atomic concentration of magnesium (Mg) of from about 5 to about 15 atom %. The particulate nanocomposite material has utility in immobilizing inorganic contaminants disposed in an aqueous medium and in degrading organic pollutants disposed in an aqueous medium.
Owner:IMAM MOHAMMAD IBN SAUD ISLAMIC UNIV

A plasma furnace and method for jointly disposing of solid and liquid hazardous waste

The present invention discloses a plasma furnace and method for jointly disposing of solid and liquid hazardous wastes, which relates to the field of hazardous waste disposal and solves the problems of insufficient disposal scope and disposal effect in traditional plasma hazardous waste disposal technologies. The furnace body includes an upper gas zone and a lower molten pool inside. The gas zone is connected to a solid hazardous waste feed inlet and a gas outlet, and the molten pool is connected to a slag outlet. A thermal plasma torch and a liquid hazardous waste feed sleeve are provided at the bottom of the furnace body. The thermal plasma torch generates a plasma flame, and the plasma flame passes upward through the bottom of the furnace body and is sprayed into the molten pool to heat and stir the molten pool, forming a stable slag circulation flow in the molten pool. The liquid hazardous waste is sprayed into the plasma flame from the bottom of the furnace body through the liquid hazardous waste feed sleeve and enters the molten pool together with the plasma flame. The effects of achieving both the oxidation and decomposition of organic pollutants and the solidification and capture of inorganic pollutants, and improving the applicable scope and efficiency of plasma hazardous waste disposal are achieved.
Owner:JIANGSU TIANYING ENVIRONMENTAL PROTECTION ENERGY COMPLETE EQUIP CO LTD +2

Construction waste-based adsorption and passivation bifunctional water treatment agent and preparation method thereof

The invention provides a construction waste-based adsorption and passivation bifunctional water treatment agent and a preparation method thereof, and the construction waste-based adsorption and passivation bifunctional water treatment agent with high adsorbability and heavy metal passivation function is prepared through mechanochemical composite activation. Inorganic pollutants preferentially adsorb phosphates, fluorides and heavy metals (lead / arsenic / nickel), and depend on calcium-based precipitation and surface complexation; the organic pollutants have high affinity to cationic dyes (such as methylene blue) and depend on physical adsorption and electrostatic interaction; according to the modification core, ball-milling grain size refining, thermal activation chambering and functional group increasing through acid-base treatment are the key points for improving the adsorption performance. The material has the advantages of'treating pollution by waste ', low carbon and low cost, and is suitable for water treatment scenes such as artificial wetland fillers and permeable reactive barriers.
Owner:HUZHOU GREEN WORLD ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

MOF (Metal Organic Framework) material for synergic recycling of organic-inorganic pollutants as well as preparation method and application of MOF material

The invention discloses an MOF material for synergistically recycling organic-inorganic pollutants, a preparation method and application of the MOF material in olefin oxidation reaction, and the technical scheme is as follows: S1, adding p-formylbenzoic acid and 1, 3-diamino-2-hydroxypropane into a mixed solution, reacting for 15-30 hours at 60-80 DEG C in an Ar atmosphere, removing a solvent, filtering, washing, and drying to obtain the MOF material for synergistically recycling organic-inorganic pollutants. Washing the sample, and performing vacuum drying to obtain a sample I; s2, adding the sample I and ZrCl4 into a solvent, then adding an HCl solution, heating at 100-140 DEG C for 40-50 hours after the sample I and ZrCl4 are completely dissolved, performing centrifugal separation after the reaction is finished, collecting solids, and performing vacuum drying to obtain a sample II; s3, the metal salt solution and deionized water are added to be mixed and oscillated for 20-40 h, after the oscillation is finished, solids are collected in a centrifugal mode, the obtained solids are washed and dried, calcination is conducted for 3-6 h in a tubular furnace at the nitrogen atmosphere of 400-600 DEG C, and the metal-organic framework material is obtained. The MOF material for synergic recycling of organic-inorganic pollutants has higher epoxide selectivity when being used for olefin oxidation, and can be used for efficiently preparing epoxide from olefin.
Owner:ZHEJIANG UNIV OF TECH

A method for strengthening nanomaterial adsorption of inorganic pollutants by microbubbles

The application discloses a method for strengthening adsorption of inorganic pollutants by nanomaterials by using microbubbles, which comprises the following steps: firstly, using a microbubble generating device to aerate a solution containing inorganic pollutants for 10-30 min; then, adding nanomaterials into the solution; after 24-48 h, taking out the nanomaterials to obtain nanomaterials adsorbing inorganic pollutants. The adsorption method can significantly improve the selective removal effect of nanomaterials on pollutants by introducing the microbubble technology, so that the removal amount of pollutants is increased by 0.2-5 times, and the problem that the removal effect of different inorganic pollutants is affected by pH and competitive ions, resulting in poor removal rate, can be avoided, and the pH range for using the nanoadsorption material is widened.
Owner:NANJING UNIV

Environment-friendly biological slime control method for conventional cooling tower

The application provides an environment-friendly conventional cooling tower biological slime control method, and relates to a metal-organic composite material microbial electric coupling porous membrane structure. The structure comprises an activated carbon fiber felt anode and an air cathode, wherein the air cathode comprises porous PTFE as a diffusion layer, MnCo / NC nitrogen-doped bimetallic-based carbon composite organic material as a cathode catalyst layer, and porous carbon material as a base electrode. The anode and the air cathode are fixed as an integrated metal-organic composite material microbial electric coupling porous membrane structure by using a woven metal fiber mesh structure. The metal-organic composite material microbial electric coupling porous membrane structure is placed on the water surface of a conventional cooling tower bottom collecting pool, filters large-particle pollutants, adsorbs microorganisms in water, and inhibits the growth of algae in water. Through the removal of large-particle biological slime flocs, organic and inorganic pollutants and microorganisms in circulating cooling water, the application realizes the control of biological slime in a circulating cooling water pipe network.
Owner:HARBIN THERMAL POWER CO LTD

Methods for microbial in-situ remediation for the sustainable immobilization of inorganic pollutants in contaminated waters

Method for microbial in-situ treatment and in-situ remediation for the sustainable immobilization of inorganic pollutants in contaminated waters, surrounding aquifer areas and zones, and extraction residues by sequencing and controlling activated natural mineral formation processes, characterized in that a buoyant reactive material is introduced into the contaminated waters, surrounding aquifer areas and zones, and extraction residues as bulk material and / or by controlled flushing as a solid-water mixture via naturally occurring hydraulic connections and / or engineered inlets and outlets with technical systems and equipment, wherein the reactive material consists of a buoyant solid carrier material in the form of a foam glass substrate made of glass powder and blowing agent.with a silicate coating consisting of hydrogen-releasing and / or sulfate-reduction-promoting substances and at least one additive homogeneously embedded in the silicate coating, and the silicate coating of the reactive material stimulates the metabolic processes of autochthonous sulfate-reducing microorganisms by reducing site-specific and / or supplied sulfate to sulfide, and sulfide formation and gradual surface oxidation of formed sulfides occur on the floating reactive material through oxygen present from inflowing groundwater or through the gradual supply of oxygen via technical systems and facilities for the formation of pyrites and iron oxides through gradual surface oxidation on the floating reactive material, wherein hydrogen is released at rates of 0.0005 mol / kg*d to 0.0005 mol / kg*d during contact of the reactive material with the polluted waters.0.5 mol / kg*d is released and autotrophic microbial sulfate reduction is stimulated with reduction rates of 0.75 mg / l*d to 70 mg / l*d.
Owner:WISMUT

Iron-based nano-enzyme and zeolite composite filler as well as preparation method and application thereof

The invention belongs to the technical field of constructed wetlands, and particularly relates to an iron-based nano-enzyme and zeolite composite filler as well as a preparation method and application thereof. The preparation method comprises the following steps: loading an iron-based nano-enzyme with peroxidase-like activity on natural zeolite, adjusting the pH value by using urea, carrying out a hydrothermal reaction, carrying out suction filtration, washing to obtain a magnetic iron-based nano-enzyme-zeolite composite filler, and finally carrying out plasma treatment to obtain the iron-based nano-enzyme-zeolite composite filler. The composite filler shows broad-spectrum adsorption and catalytic degradation capability on organic and partial inorganic pollutants in water, still has high catalytic activity under a low-temperature condition, and overcomes the problem that a traditional enzyme preparation is sensitive to environment temperature.
Owner:BEIJING FORESTRY UNIVERSITY

Durable and flame-retardant super-hydrophobic passive cooling material for machinery and preparation method of durable and flame-retardant super-hydrophobic passive cooling material

PendingCN121226817ACoatingsFiberMicro nano
The invention discloses a durable, flame-retardant and super-hydrophobic passive cooling material for machinery, which is a solid film material prepared from agricultural wastes, inorganic metal oxide particles, a bio-friendly polymer, an organic auxiliary agent and organic acid under mild reaction conditions, wherein the surface of the solid film material is of a long-strip-shaped or short-fiber-shaped graded micro-nano structure. The static contact angle of water in air is larger than 150 degrees, the rolling angle is smaller than 10 degrees, organic and inorganic pollutants on the surface can be completely removed by water drops or water flow, the passive cooling capacity exceeds 10 DEG C, and after continuous water flow impact is carried out for 30 min and an acidic or alkaline solution with the pH value of 1 or 13 is used for leaching for 30 min, the water can be cooled to the room temperature. The contact angle, the rolling angle, the passive cooling capability, the self-cleaning property and the flame retardant property are not changed. The invention also discloses a preparation method of the composition. The material disclosed by the invention is excellent in super-hydrophobic self-cleaning performance, high in passive cooling capacity, good in flame retardant property and wide in application scene. Meanwhile, the preparation process is simple, energy consumption is low, toxic and side effects are small, cost is low, and expanded production is easy.
Owner:SICHUAN AGRI UNIV

Iron-based nanoszyme@zeolite composite filler, preparation method and application thereof

The application belongs to the technical field of artificial wetlands, and more particularly relates to an iron-based nanoscale enzyme@zeolite composite filler as well as a preparation method and application thereof. The application is characterized in that: the iron-based nanoscale enzyme with peroxidase-like activity is loaded on natural zeolite, a hydrothermal reaction is carried out after urea is used to adjust pH, a magnetic iron-based nanoscale enzyme@zeolite composite filler is obtained through filtration and washing, and finally, the iron-based nanoscale enzyme@zeolite composite filler is obtained through plasma treatment. The composite filler exhibits broad-spectrum adsorption and catalytic degradation capacity for organic and part of inorganic pollutants in water, and still has high catalytic activity under low-temperature conditions, thereby overcoming the problem that traditional enzyme preparations are sensitive to environmental temperature.
Owner:BEIJING FORESTRY UNIVERSITY

Coated oil or gas operation components that demonstrate reduced fouling and methods of inhibiting fouling of an oil or gas operation component

Coated oil or gas operation components include:(a) a substrate with a surface having reactive functional groups;(b) a polymerization initiator chemically bonded to at least one surface of the substrate via reaction with the reactive functional groups on the surface of the substrate; and(c) a polymeric coating layer that demonstrates hydrophilicity. The polymeric coating layer is prepared by a radical polymerization process from a monomer composition comprising at least one free radical polymerizable monomer having at least one hydrophilic functional group, such as a (meth)acrylamide group. The polymeric coating layer is chemically bonded to and propagated from the polymerization initiator. Also provided are methods of inhibiting fouling of an oil or gas operation component by an organic or inorganic contaminant.
Owner:ACULON INC

Hydrophilic round and square membrane bed biological purification system and method

The invention discloses a hydrophilic round-square membrane bed biological purification system and method.The hydrophilic round-square membrane bed biological purification system comprises an aerobic main body reaction unit, a unit inlet overflowing pipe part is arranged at one end of the aerobic main body reaction unit, a unit outlet overflowing pipe part is arranged at the other end of the aerobic main body reaction unit, and a water overflowing arc wall component is arranged in the aerobic main body reaction unit; the water passing arc wall part comprises a front-area medicine mixing arc wall part, an intercepting, filtering and purifying arc wall part and a rear-area medicine mixing arc wall part, the water round and square membrane bed part is arranged between the front-area medicine mixing arc wall part and the intercepting, filtering and purifying arc wall part, and an air inlet of the water round and square membrane bed part is connected with the aeration oxygen supply part; a medicine inlet of the front-area medicine mixing arc wall part and a medicine inlet of the rear-area medicine mixing arc wall part are connected with front and rear medicine adding parts; the method provided by the invention can efficiently and quickly cope with organic or inorganic pollutants of normal-chain functional groups entrained in incoming water in an energy-saving and low-consumption manner.
Owner:YANGTZE ECOLOGICAL ENVIRONMENTAL PROTECTION GRP EAST CHINA CO LTD +1

A wastewater pretreatment method based on wet oxygen method

The application discloses a wastewater pretreatment method based on a wet oxygen method, and particularly relates to the field of wastewater treatment, which comprises sampling and calibrating all wastewater sources, analyzing the content and proportion of organic pollutants, inorganic pollutants and characteristic pollutants in the wastewater, simultaneously determining reference indexes of the wastewater, obtaining analysis results, and classifying the wastewater through the analysis results. Through two-stage operation of the wet oxygen reactor, the scheme realizes ring-opening and chain-breaking reactions of macromolecular organic matter, and further oxidizes and mineralizes small molecules into inorganic products; in the first stage, the generation efficiency of hydroxyl radicals is optimized by using temperature and pressure, and time-sensitive reaction characteristics are decomposed to complex organic matter; in the second stage, the temperature is increased to accelerate the mineralization of small molecules, and the residual organic pollutants are maximally reduced; the problem that the existing wet oxygen method has low treatment efficiency under a single condition is solved, and the removal effect of organic pollutants in the wastewater is improved.
Owner:HUANGSHI HULI ENVIRONMENTAL PROTECTION & ENERGY SAVING IND TECH RES INST CO LTD +2

Sintering flue gas pollutant enrichment sampling and detection system and method

The invention provides a sintering flue gas pollutant enrichment sampling and detection system and method, and the system comprises a sampling assembly which extends into a flue filled with sintering flue gas to collect the sintering flue gas; the flue gas sample separation assembly is connected with the sampling assembly and comprises a filtering condensation part, a drying adsorption part and a pump extraction part which are sequentially arranged in the flowing direction of the sintering flue gas; the sintering flue gas sequentially passes through the filtering condensation part, the drying adsorption part and the pump extraction part, and is respectively enriched to obtain a liquid sample to be detected, an adsorption sample and a gas sample; and the detection assembly is positioned at the downstream of the flue gas sample separation assembly and is used for detecting the liquid sample, the adsorption sample and the gas sample respectively. According to the application, various pollutants, including traditional inorganic pollutants, dioxin substances and unknown low-concentration pollutants, in the sintering flue gas are comprehensively and efficiently detected through combination of various sampling and analysis technologies.
Owner:TSINGHUA UNIVERSITY +1

Aeration sludge drainage sewage treatment well and high-load artificial wetland thereof

The present invention discloses an aerated sludge-discharging sewage treatment well and a high-load artificial wetland thereof, belonging to the field of sewage treatment technology. The treatment well includes a vertical shaft, an aeration pipe and a sludge discharge pipe. The wall of the vertical shaft is covered with water holes. The sludge discharge pipe includes a sludge discharge pipe section with a built-in opening and closing valve and a sludge inlet pipe section provided with sludge inlet aeration holes. The sludge inlet pipe section is horizontally arranged at the bottom of the vertical shaft. One end of the sludge inlet pipe section is closed and the other end is connected to the sludge discharge pipe section. The other end of the sludge discharge pipe section extends from the top of the vertical shaft. One end of the aeration pipe is connected to an aeration device and the other end is connected to the sludge discharge pipe section. The connection position is close to and located above the sludge inlet pipe section. The aeration pipe has dual functions of aeration and sludge discharge. When the sludge discharge function is turned on, excess inorganic pollutants can be treated. An aerobic environment is generated by the aeration function. The artificial wetland includes a treatment pool. An aerated sludge-discharging sewage treatment well is provided in the treatment pool. The vertical shafts are arranged in a matrix in the treatment pool. The outside of the vertical shafts is filled with a wetland matrix. The wetland matrix layer height is less than the height of the vertical shaft.
Owner:广东昂为环保产业有限公司

Supercritical hydrothermal flameless combustion heat release device and heat and electricity green alcohol co-production water purification system

This invention provides a supercritical hydrothermal flameless combustion heat release device and a cogeneration system for producing green alcohol and water purification, including an outer shell, an inner shell, and an inner pipe; the cogeneration system includes a saturated oxygen water purification tank, a wastewater tank, a regeneration tank, a methanol reactor, and a generator set; this device utilizes the superoxidation capacity of medium-deep wells after they become supercritical water containers to oxidize and burn organic hydrocarbons, generating heat while simultaneously decomposing and rendering harmless organic pollutants in the water; this device is not only suitable for the comprehensive energy development and utilization of medium-deep geothermal or oil well bottoms, but can also be used for the treatment of wastewater containing mixed organic or inorganic pollutants, protecting the environment, recycling energy, and contributing to the achievement of carbon neutrality goals.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI +1

Composition and Method for Municipal and Industrial Wastewater Treatment

A method for municipal and industrial wastewater treatment makes use of polymetallic salts on their own, or in conjunction with coagulating and / or flocculant agents, and / or other chemical agents for the separation of both organic and inorganic pollutants present in water. The method of treatment has three stages (chemical reaction, clarification, and filtration) and comprise the steps of receiving wastewater to be treated from a wastewater source into a reaction tank and dosing the wastewater received with reagents within the reaction tank. The wastewater received, and reagents are agitated to facilitate a reaction within a predetermined period of time. The wastewater and reagents are then transferred to a precipitation tank where any precipitation formed separates out of solution and is disposed. Once the precipitation is removed, the wastewater is transferred to a sedimentation tank and optionally filtered. The treated wastewater is stored in a storage tank until ready to be used.
Owner:DYASA AMBIENTAL SA DE CV