11results about How to "Caused by pollution" patented technology

The invention relates to the technical field of initial rainwater pollution treatment, in particular to an integrated initial rainwater process treatment structure and method. According to the technical scheme, the integrated initial rainwater process treatment structure comprises an integrated box body, two groups of inspection manholes, a pretreatment assembly, a physical treatment assembly, a biochemical treatment assembly and a drainage assembly, and the inspection manholes are formed in the top surface of the integrated box body; compared with a traditional integrated initial rainwater process treatment structure, the modes of water quality purification and process treatment on polluted water are few, an initial rainwater filtering device on the market only treats solid pollutants, the blocking phenomenon exists after long-term use, the water quantity and the water quality are reduced, and the water quality is affected. According to the integrated initial rainwater process treatment structure, solid pollutants and soluble pollutants can be removed at the same time, meanwhile, the blocking phenomenon caused by long-term use is avoided, and pollutants carried in initial rainwater are prevented from entering a water body.

The invention provides a phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand which is prepared by the following steps: in an inert gas atmosphere, mixing a compound benzoxazole with anhydrous tetrahydrofuran, cooling to-95 to-65 DEG C, adding an n-butyllithium solution dissolved in an organic solvent, stirring at-95 to-65 DEG C for 0.5-4 hours, adding diphenylphosphoryl chloride, stirring at room temperature for 8-10 hours, filtering, washing, and drying to obtain the phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand. Carrying out post-treatment on the obtained reaction liquid to obtain a phenyl phosphonic acid bis (o-isocyano phenol) ester ligand; compared with the most common organic dye photosensitizer, the copper-based photosensitizer prepared from the phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand overcomes the defect that the catalytic activity of the organic dye photosensitizer is rapidly reduced under long-term illumination, and in addition, the organic dye photosensitizer is easy to generate an aggregation-induced quenching effect; the photosensitizer disclosed by the invention does not generate an aggregation-induced quenching effect; compared with an iridium complex photosensitizer which is commonly used at present, the cuprous photosensitizer provided by the invention is more environment-friendly.

This utility model relates to the field of sealing device technology and discloses a skeleton oil seal for mechanical transmission components. It includes a skeleton body, with sealing lips fixedly connected to both the upper and lower sides of the inner wall of the skeleton body. An installation cavity is formed inside each sealing lip, and a return spring is uniformly fixedly connected around the perimeter of the installation cavity. Installation blocks are fixedly connected to the upper, lower, left, and right sides of the skeleton body. A telescopic column is fixedly connected to the opposite side of each installation block. A return spring is provided on the outer side of the telescopic column, and a protective component is provided on the opposite side of the telescopic column for dust protection of the skeleton oil seal. In this utility model, through the cooperation of the connecting blocks, protective rings, telescopic columns, return springs, sealing lips, bolts, and nuts, the skeleton oil seal for mechanical transmission components can fully protect the skeleton body, preventing external contaminants from entering and causing contamination.

The application discloses a chemical mechanical polishing liquid and a polishing method for soft magnetic alloy. The polishing liquid is composed of the following raw material components in percentage by weight: 1.3wt%-1.8wt% of a chelating agent, 10wt%-13wt% of abrasive, 7wt%-9wt% of a pH buffer, 3wt%-3.5wt% of a corrosion inhibitor, 11wt%-13wt% of an oxidizing agent and the balance of deionized water. The abrasive is acidic silica sol, the oxidizing agent is hydrogen peroxide, the corrosion inhibitor is at least one of glycine, polyaspartic acid, glutamic acid and chitosan, the pH of the polishing liquid is 3-5, and the pH buffer is a citric acid-sodium citrate buffer. The polishing method comprises the following steps: grinding the soft magnetic alloy; performing chemical mechanical polishing rough polishing on the ground soft magnetic alloy by using a rough polishing slurry; performing chemical mechanical polishing fine polishing on the rough polished soft magnetic alloy by using the polishing liquid, so that the soft magnetic alloy with a smooth and flat surface is obtained. The polishing liquid is green, environment-friendly and pollution-free, and the surface of the soft magnetic alloy after polishing is smooth and flat.

The invention relates to an in-situ remediation method for a water body polluted by rare earth / manganese ore mining, which comprises the following steps: domesticating and screening microalgae through the polluted water body, and treating sewage by adopting the screened dominant microalgae. A microalgae floating bed containing screened and propagated microalgae and a slow-release phosphorus source is suspended on the water surface, the microalgae floating bed is a microalgae bioreactor, and only water can pass through the microalgae floating bed, so that the microalgae continuously perform material exchange with the water body in the microalgae floating bed, ammonia nitrogen in the sewage is assimilated and removed, the pH of the sewage is increased, and the sewage treatment effect is improved. The acidic sewage is gradually converted into a neutral water body, the pollution degree of the water body is relieved, and the water body is repaired; the microalgae are kept in the microalgae floating bed, so that the microalgae cannot pollute a water body, and the microalgae can be taken out from the microalgae floating bed after growing to a certain amount. According to the method, the surface illumination of the polluted water body is fully utilized, other substances are not needed except the slow-release phosphorus source, and the method is low in technical cost and free of pollution.

The invention discloses an environment-friendly treatment process and equipment for medical wastewater, and relates to the technical field of wastewater treatment.The environment-friendly treatment process comprises the steps of pretreatment, primary treatment, secondary treatment, disinfection treatment, energy recovery and intelligent management. The first-stage treatment is used for preliminarily decomposing organic substances in the wastewater, and the second-stage treatment is used for further degrading the organic substances in the wastewater and generating available energy. Large suspended matters and floating matters in wastewater are effectively intercepted through pretreatment, so that equipment blockage caused by subsequent treatment is prevented, the water quality and the water quantity are balanced by using the adjusting tank, stable working conditions are created for subsequent treatment, the whole treatment process is monitored in real time by utilizing intelligent management, and the treatment efficiency is improved. Data such as suspended matter concentration, PH value, heavy metal concentration and microorganism quantity are collected in real time, data analysis and decision support are performed through an intelligent control system, and the wastewater treatment efficiency is improved.

The present invention provides an enhanced photocatalytic antibacterial and deodorizing full heat exchange fresh air blower, comprising a housing, a full heat exchange module, an air purification filter element, a photocatalytic module and an air quality monitoring module, wherein the housing is provided with an airflow separation horizontal plate and an airflow separation vertical plate, wherein the airflow separation horizontal plate and the airflow separation vertical plate are vertically cross-connected, wherein the airflow separation horizontal plate, the airflow separation vertical plate and the housing walls divide the interior of the housing into a first area, a second area, a third area and a fourth area, wherein a first air purification filter element is provided in the first area, a second air purification filter element is provided in the second area, and an air quality monitoring module is provided in the first air duct and the second air duct respectively. The present invention has the beneficial effects of sterilizing, deodorizing and degrading organic pollutants; avoiding the use of physical adsorption consumables such as activated carbon and molecular sieves, reducing operation and maintenance costs, reducing energy consumption, and being green and environmentally friendly.

The utility model relates to a terminal feeding device which comprises a terminal cutting device and a feeding device. And the terminal cutting device is used for cutting off the terminal. The feeding device is used for installing the cut-off terminals on the coils. The feeding device is arranged on one side of the terminal cutting device and comprises a longitudinal moving device, a transverse moving device and a clamping device, the longitudinal moving device drives the transverse moving device to move, and the clamping device is installed on the transverse moving device and used for clamping terminals. According to the utility model, the terminal cutting device and the feeding device are combined, so that the terminal deformation caused by vibration or collision and the like in the feeding process of the terminal can be effectively avoided, and the yield of products is improved.

The utility model relates to an energy -conserving cloth setting box has the casing and heating assembly, in the casing is used for the setting chamber of waiting for the cloth through of passing, heating assembly includes the heating pipe made of magnetically conductive material, heating pipe inside has the heating chamber of air current passing, the electromagnetic heating coil is wound on the heating pipe, the setting chamber is provided with the air outlet component of installing and directly spraying the hot air current to the cloth of waiting for setting, electromagnetic heating coil passes through the heating pipe heating of changeable magnetic field, air current heating is hot air current from the heating chamber, hot air current passes pipeline and enters the setting chamber, heating assembly and air outlet component upper and lower parallel installation in the setting chamber, heating assembly connection pipeline end and air outlet component connection pipeline end homeward bound. The utility model has the beneficial effects that compared with prior art: high -efficient energy -conserving, temperature control accurate, heating is even, environmental protection clean, equipment life is long, equipment manufacturing cost is low.

The invention relates to the technical field of industrial kilns, and discloses a powder dust-free collection industrial kiln which comprises a kiln connector, a collection hopper is arranged on one side of the bottom of the kiln connector, a dust removal mechanism is arranged above the collection hopper, and the dust removal mechanism comprises a cloth bag dust removal system and an external cleaning system; the cloth bag dust removal system is located above the collection hopper, a gas collection cavity is formed above the cloth bag dust removal system, a negative pressure fan is arranged on one side of the gas collection cavity, and the external cleaning system is arranged on the other side of the gas collection cavity. The dust removal device has the advantages that suspended particles generated during dust removal are prevented from entering external air and returning into the collecting hopper again, then residual particles on the bag dust removal system are blown off and collected by the dust collecting hopper at the bottom of the cleaning cavity, the quality of the bag dust removal system can be checked in time after dust removal of the bag dust removal system is completed, and the service life of the bag dust removal system is prolonged. And the problem that the dust-free collection quality of powder is affected due to the fact that the bag-type dust removal system is damaged and cannot be replaced in time after long-time work is avoided.

This invention belongs to the field of environmental materials, specifically relating to a method for preparing and applying a composite pollutant treatment agent, comprising the following steps: Step 1, dissolving polyacrylonitrile in N,N-dimethylformamide, stirring thoroughly to obtain a spinning solution, and performing electrospinning to obtain an electrospun polyacrylonitrile film; Step 2, pre-oxidizing the electrospun polyacrylonitrile film in an air atmosphere to obtain a pre-oxidized polyacrylonitrile film; Step 3, carbonizing the pre-oxidized polyacrylonitrile film under nitrogen protection to obtain electrospun carbon fibers; Step 4, dissolving bismuth nitrate in ethylene glycol, and obtaining a bismuth nitrate / ethylene glycol solution by magnetic stirring; Step 5, purifying anhydrous ethanol by dehydration using a 3A molecular sieve; Step 6, mixing the bismuth nitrate / ethylene glycol solution obtained in Step 4 with the anhydrous ethanol obtained in Step 5, adding the electrospun carbon fibers obtained in Step 3, performing a hydrothermal reaction, and washing and drying the reaction product to obtain Bi2O supported on carbon fibers with both adsorption and degradation effects. 2.33 / Bi2O3 composite pollutant treatment agent. This composite pollutant treatment agent is used for the catalytic degradation and adsorption of organic pollutants in wastewater.