15 results about "Inorganic pollutants" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

This utility model discloses an ozone advanced oxidation deep wastewater treatment device, belonging to the field of papermaking wastewater treatment technology. It includes an ozone reaction tower, a secondary sedimentation tank, an intermediate tank, a high-speed dissolved air device, and an ozone catalytic packing layer. The high-speed dissolved air device is equipped with a hydrogen peroxide inlet for introducing hydrogen peroxide and an ozone input pipe for introducing ozone. The ozone catalytic packing layer is disposed inside the ozone reaction tower. A mixing and releasing device is installed between the high-speed dissolved air device and the ozone input pipe. The high-speed dissolved air device is disposed inside the ozone reaction tower and is equipped with a wastewater transport pipe. This utility model provides an ozone advanced oxidation deep wastewater treatment device that can achieve non-selective and thorough removal of various organic and inorganic pollutants, while also removing nitrite, suspended solids, and performing decolorization, deodorization, sterilization, and disinfection.

The present application relates to the technical field of gas-phase inorganic pollutant purification, and specifically provides a nitric acid modified fly ash based SCR catalyst, which takes nitric acid modified fly ash as a carrier and is loaded with manganese and cerium bimetallic oxides. The nitric acid treatment can not only increase the specific surface area of the fly ash and reduce the average pore size, but also effectively increase the proportion of SiO2 in the fly ash and remove some impurities, which is beneficial to the loading of active metals. After loading the manganese and cerium bimetallic oxides, the catalyst can selectively and efficiently catalyze the reduction of nitrogen oxides at low temperature, and the conversion rate of NO X can reach 100% at 150 DEG C, and the conversion rate can be kept above 90% in the range of 140-250 DEG C.

The invention relates to the technical field of coal and coal chemical industry wastewater treatment, in particular to a treatment system and method for coal-based solid waste harmless treatment wastewater, and the system comprises an adjusting unit, a coagulating sedimentation unit, a catalytic ozonation unit, a gravity sedimentation unit, a biological filtration unit and a clean water tank unit; the adjusting unit is used for adjusting the water quality and the water quantity of the input wastewater; the coagulating sedimentation unit is used for removing sludge, suspended solids, colloidal particles and part of heavy metal pollutants in the wastewater; the ozone catalytic oxidation unit is used for removing refractory organic pollutants in the wastewater; the gravity precipitation unit is used for removing part of heavy metal pollutants in the wastewater and suspended solids, flocs and solid particles formed in the oxidation reaction process; the biological filtration unit is used for removing biochemical organic pollutants, part of suspended matters and part of inorganic pollutants in the wastewater; the clean water tank unit is used for collecting and storing filtered water; according to the invention, refractory organic matters and heavy metals in wastewater can be synergistically removed.

This invention discloses a biofilm cleaning system and method, including an installation box assembly, a shielding component, a cleaning component, an equipment box assembly, a moving component, and a lifting component. The installation box assembly is used to arrange the biofilm in compartments. The cleaning component includes sequentially arranged rinsing, oxidative cleaning, acid washing, rinsing, and drying units. The moving component drives the lifting component to transfer the biofilm. The cleaning method includes: opening the shielding component to expose the biofilm; grabbing and transferring the biofilm using the moving and lifting components; continuously cleaning and drying it through each cleaning unit; and then resetting the biofilm. This invention achieves simultaneous removal of organic and inorganic pollutants, thorough cleaning without reagent residue, high automation, accelerated biofilm recovery, reduced system downtime, stable structure, and convenient maintenance. It is suitable for cleaning various types of biofilms in wastewater treatment.

The utility model relates to a photovoltaic glass self-cleaning dustproof coating structure, which belongs to the technical field of glass coatings and comprises a bottom coating, a self-cleaning functional layer and a top coating which are sequentially stacked on a photovoltaic glass substrate. A roughened transition interface is formed between the bottom coating and the photovoltaic glass substrate, a micro-nano convex structure layer is formed on the surface of the top coating, and organic matters can be decomposed by photon-generated carriers generated by nano titanium dioxide under the irradiation of sunlight; inorganic matter pollutants such as dust and the like are difficult to adhere due to the micro-nano convex structure and the low surface energy characteristic of the top coating, and self-cleaning can be achieved under rain wash. Meanwhile, static electricity is effectively dissipated through the carbon nano tube network structure, the phenomenon that dust is attached due to electrostatic adsorption is reduced, and the dustproof capacity of the coating is further improved.

This utility model belongs to the field of farmland water conservancy and sewage treatment technology, specifically disclosing an ecological filter dam, including a filter dam base plate and partition walls and retaining walls set above the filter dam base plate. Several partition walls and retaining walls are provided, arranged in a rectangular array. A wing wall is fixed to the outermost partition wall. Two retaining walls are symmetrically fixed between two adjacent partition walls, forming a filling trough. A filter grid is fixed to the inner side of the retaining wall. The filling trough is filled with filter media. A top beam is fixed to the outer side of the filling trough. A cover plate is set above the filling trough and fixed to the top beam. The retaining walls and filter grid are used to filter large particulate impurities, and the filter media are used to adsorb, capture, and retain organic and inorganic pollutants. This utility model uses physical interception of filter grids and chemical adsorption through filter media to achieve multiple purification, significantly improving water quality. The rectangular array arrangement of the partition walls and retaining walls enhances the overall impact resistance and adapts to different hydraulic loads.

This utility model relates to the field of high-salinity wastewater treatment technology, specifically a high-salinity wastewater treatment system. The system includes an adsorption tank and a regeneration furnace. A discharge trough, a first screw conveyor, and a second screw conveyor are provided between the adsorption tank and the regeneration furnace. The adsorption tank is filled with a modified porous inorganic filler adsorbent to adsorb ammonia nitrogen from the raw water, reducing the chemical oxygen demand (COD). The regeneration furnace regenerates the modified porous inorganic filler adsorbent. By combining the adsorption tank and the regeneration furnace, this utility model not only utilizes the excellent adsorption performance of the modified porous inorganic filler adsorbent to efficiently remove ammonia nitrogen from high-salinity wastewater, but also allows the adsorbent, after adsorbing inorganic pollutants, to be transported to the regeneration furnace for regeneration. After regeneration, the adsorbent is then reintroduced into the adsorption tank to continue the adsorption process, forming a dynamic cycle for more efficient and lower-cost treatment of ammonia nitrogen in high-salinity wastewater.