32results about How to "Rapid oxidative decomposition" patented technology

Disclosed is a water quality purification method for a eutrophicated river, comprising the follow steps: first, blocking a eutrophicated river and forming an upstream part, a midstream part, and a downstream part; then entering the water in the upstream part into an electrolysis machine for electrolysis; discharging the electrolyzed water into the midstream part, and performing aeration treatment; lastly, letting the aerated water flow into the downstream part. By using a method of an electrolysis process and an aeration process in sequence, the algae growth in the water and the anaerobic reactions in the water body are effectively inhibited, organic matters are decomposed, the total nitrogen, total phosphorus, and color of the water are lowered, odors are eliminated, river water quality is improved within a relatively short period, and the water ecological system is restored. Also disclosed is a river water quality purification device, comprising a rubber dam, a pump, an electrolysis machine, and an aeration device. The device can be directly installed in the river and can directly purify river water without the need to guide the river into a pre-set structure for treatment. The present invention makes almost no change to the environment, and therefore has a relatively small impact on the natural environment.

The invention discloses the design and manufacturing of functional fiber materials in the field of textile materials, relates to preparation of a fibrous heterogeneous Fenton reaction catalyst, in particular to a manufacturing method for fibers which can catalyze an oxidant (such as hydrogen peroxide and ozone), rapidly and efficiently oxidize and decompose a variety of dyes, and can be reused and be easily separated from water. The manufacturing method uses the technologies of precipitation polymerization, wet spinning, permeability enhancement, iron ion complexation, thermal crosslinking and the like comprehensively, and the obtained fibers can be used for treating dye wastewater and other water bodies containing organic matter. Compared with the existing heterogeneous Fenton reaction catalyst, the obtained fibers have better treatment effects on dye wastewater and the other water bodies containing organic matter. Compared with the Fenton reaction catalyst prepared by the fibers of the same type wet spinning method, the obtained fibers can efficiently oxidize and decompose organic matters at a very high speed to rapidly and effectively purify the water bodies, and simultaneously improve the reusability significantly and reduce the application cost, thereby meeting industrial practical requirements.

The invention, which belongs to the technical field of surface treatment of a high molecular material, relates to a method for rapidly removing a high-temperature-resistant fiber polyimide coating layer with low damage. With laser radiation, the temperature of acid liquor at the surface of a coating layer rises quickly and the acid liquor boils; and because of the boiling acid liquor, the polyimide coating layer is processed by oxygenolysis rapidly; and thus an objective of removing the coating layer rapid and completely is achieved. With the method provided by the invention, a coating layer at the end of a fiber as well as a coating layer with any length at any part in the middle of the fiber can be removed quickly; and the surface damage of the fiber core layer by the instantaneous high temperature can be reduced. The coating layer removing speed is fast and the acid liquor amount is reduced; and the operation becomes secure. The method has the high application potential by being compared with other same kinds of methods in related fields like fiber grating sensor packaging and fiber grating writing and is suitable for precise removing of a polyimide coating layer of a high-temperature-resistant fiber.

The invention belongs to the technical field related to radioactive waste treatment, and discloses a method for treating radioactive mixed ion exchange resins by using a Fenton-like oxidation method. The method includes the following steps: combining radioactive mixed ion exchange resins with acidified Fe 2+ solution or Fe 2+ / Cu 2+ The mixed solution is placed in the reaction vessel at the same time, and then H is added to the reaction vessel 2 o 2 solution to initiate a Fenton-like reaction while adding acidified Fe 2+ solution or Fe 2+ / Cu 2+ mixed solution, whereby Fe 2+ or / and Cu 2+ with the H 2 o 2 The oxidizing free radicals generated by the solution reaction oxidize and degrade the mixed resin. The method provided by the invention has mild operating conditions, and does not require additional treatment of the resin before the reaction. The waste resin is completely decomposed without secondary pollution. The decomposition residue is clear and transparent, and there is almost no solid residue in the end. It is economically feasible and has good application prospects.

The invention relates to the field of deodorizer application, in particular to a deodorizing method by matching a microbial deodorizer with fog gun equipment. The method comprises the following steps of deodorizer preparation, equipment installation, deodorizer adding, spraying liquid preparation and spraying. The invention aims at providing the deodorizing method by matching the microbial deodorizer with the fog gun equipment. The microbial deodorizer is automatically sprayed to a refuse landfill through the fog gun equipment; in addition, the spraying time, the spraying quantity and the size of sprayed fog drops can be well and automatically controlled; and then, the microbial deodorizer fog drops can sufficiently react with odor molecules; a great number of deodorizers and labor can be saved; a good deodorization effect is achieved.

The invention relates to a method for treating printing and dyeing wastewater through catalytic oxidation. The method comprises the following steps: adding Co3(PO4)2 and an oxidant into the printing and dyeing wastewater respectively, mixing, and then performing the static settlement or sedimentation to obtain the treated printing and dyeing wastewater. The Co3(PO4)2 is an effective and quick oxidation catalyst, can quickly catalyze peroxide to generate a free radical with a strong oxidizing property, and is enabled to be in oxidation-reduction reaction with dye to achieve the purpose of high reaction speed and high decolourization ratio. The treatment of the printing and dyeing wastewater can be carried out under the natural condition, without illumination.

A method for treating refined cotton black liquor by using residual alkali and residual heat. The invention fully utilizes the residual heat and residual alkali after cooking cotton linters to activate PS / PMS to produce SO with strong oxidation activity. 4 － · and HO · can efficiently and quickly oxidize and decompose macromolecular organic pollutants in black liquor. The refined cotton black liquor is first adjusted in temperature and pH and then added with PS / PMS solution. The PS / PMS in the reaction tank is quickly activated by the waste heat and alkali in the refined cotton black liquor to produce strong oxidizing SO 4 － ·and HO·, under the agitation of the refined cotton black liquor in the reaction tank, the SO 4 － · and HO · can fully react with the macromolecular refractory organic matter in the refined cotton black liquor, so that the macromolecular organic pollutants are decomposed into small molecular organic matter, carbon dioxide and water, and the efficient removal of organic pollutants is realized.

The invention discloses a device and method for repairing soil and preventing pollutant diffusion. The device comprises an in-situ pressurization component, an electrode dialysis component and an aftertreatment component. Firstly, injecting a mixed oxidant of hydrogen peroxide dry mist and low-temperature plasma air into polluted soil in an injection pressure mode, then organic pollutants in the soil can be rapidly oxidized and decomposed, and pollutant diffusion can be also effectively prevented by a low-temperature mode. The device is also provided with an electrode zone, the pollutants canbe in directed migration along with ions by using an electrolysis method, a dialysis layer is also arranged on the inner side of an electrode net, and sucked and accumulated pollutants can be baffledby using three-dimensional filtering cotton and can be further oxidized and decomposed through persulfate, so that the removal efficiency of the pollutants in the soil can be greatly improved. In a word, the device has the advantages that the structure is simple, the in-situ pollutant treatment velocity is rapid, and pollutant diffusion is not easily caused.