192results about How to "Improve oxidation capacity" patented technology

The invention discloses an ultra-low emission treatment system and device for Maotai-flavor liquor production wastewater, the wastewater passes through a combination of a rotary mechanical fine grid and a self-cleaning rotary fine grid, and various solids in the wastewater are thoroughly removed; in the pretreatment, precipitation and air floatation are combined, and a phosphorus removal agent, a coagulant and a flocculant are properly added, so that the phosphorus removal burden in the subsequent treatment is reduced. A UASB anaerobic reactor is adopted in the anaerobic treatment section, so that the phenomena of acidification and the like are not easy to occur. The biological treatment adopts an improved two-stage AO treatment process and is combined with an MBR (Membrane Bioreactor), so that the removal effect of COD (Chemical Oxygen Demand) and total nitrogen can be integrally improved, and the suspended solids, COD and total nitrogen concentration in effluent are reduced. In the deep treatment stage, catalytic ozonation and an MBBR biological treatment device are adopted, and a combined process of an efficient sedimentation tank and ultrafiltration / nanofiltration is combined; ozone catalytic oxidation enhances the oxidation capacity of ozone, and improves the B / C ratio and biodegradability of wastewater; mBBR biological treatment has the characteristics of a membrane method and a suspension method, and COD and total nitrogen in the wastewater are further effectively reduced.

The utility model relates to the field of plastic recovery, in particular to a cleaning device for plastic recovery, which comprises a device shell, an aeration fan and a driving motor, the upper end of the device shell is provided with a feed port, the upper end of the device shell is provided with a synchronous telescopic column, the upper end of the synchronous telescopic column is provided with a connecting plate, and the lower end of the connecting plate is provided with the driving motor. The lower end of the driving motor is connected with a first stirring shaft, a first cleaning blade is arranged on the side face of the mounting sleeve, aeration fans are arranged on the two sides of the device shell, and aeration openings are formed in the inner wall of the device shell. The inside of the cleaning cavity is aerated through the aeration fan, so that the oxidation capacity of the cleaning liquid is improved, and the plastic cleaning effect is further improved; and the heights of the stirring shaft and the cleaning blades are adjusted through the synchronous telescopic column to adapt to plastics of different sizes and shapes, mutual overlapping or clamping of the plastics is avoided, and the uniformity and integrity of cleaning are guaranteed.

The utility model discloses an MVR (mechanical vapor recompression) concentrated solution treatment device, which belongs to the field of wastewater treatment and comprises a first coagulating sedimentation device, a second persulfate advanced oxidation device, a second persulfate adding device for adding persulfate into the second persulfate adding device, a third biochemical treatment device, a fourth membrane treatment component and a fifth clear water tank. Wherein the MVR concentrated solution to be treated can be fed into the first coagulating sedimentation device. The first coagulating agent adding device is connected with the first coagulating sedimentation device, and the first coagulating agent adding device is used for adding a coagulating agent into the first coagulating sedimentation device, so that the MVR concentrated solution is flocculated and settled, and first coagulated sludge and first coagulated supernate are respectively obtained. The method can be suitable for MVR concentrated solution treatment scenes with different scales and treatment requirements, the wastewater treatment efficiency is improved, the treatment cost is reduced, efficient and stable treatment of wastewater can be achieved, and the method has high application value and wide popularization and application value.

The utility model discloses a novel advanced oxidation device which comprises an outer shell, a gas-liquid mixing chamber, an ultrasonic atomization disc, a gas inlet hole, a water inlet hole, a connecting ozone generator, a UV reaction coil pipe and the like. Through ultrasonic wave catalysis and ultraviolet light catalysis, H2O is excited by O3 and a large amount of. OH with higher oxidability is generated, the mixing degree and turbulent fluctuation intensity of ozone and sewage are improved, the mass transfer coefficient is increased, the mass transfer rate of ozone is increased, and four-section oxidation reaction is carried out in one reactor, so that the ozone oxidation efficiency and effect are greatly improved; and a reinforced oxidation effect is generated on pollutants in the wastewater, so that the pollutants in the wastewater are degraded and removed.

The invention provides a method for deeply extracting vanadium from vanadium-containing steel slag, which comprises the following steps: mixing the vanadium-containing steel slag and an oxygen-containing microbubble ammonium bicarbonate solution, and carrying out mechanochemical ball milling activation to carry out leaching reaction to obtain a vanadium extracting solution. According to the method, advanced oxidation is cooperated with mechanochemical ball milling to activate and strengthen deep extraction of vanadium in the vanadium-containing steel slag, wrapping of substances such as calcium silicate and calcium titanium oxide on a vanadium-containing solid solution phase is destroyed through mechanical activation, and O2 microbubbles in an ammonium bicarbonate medium are promoted to generate active oxygen under excitation of mechanical activation energy; exposure reaction and deep oxidation extraction of a vanadium-containing phase under mild conditions are achieved, the content of V2O5 in tailings after vanadium extraction is smaller than or equal to 0.5%, and the vanadium extraction rate is 83% or above.

The invention discloses a denitration catalyst with a low sulfur dioxide oxidation rate, a preparation method of the denitration catalyst and application of the denitration catalyst in removal of nitrogen oxides through ammonia selective catalytic reduction. The denitration catalyst with the low sulfur dioxide oxidation rate is a titanium dioxide loaded vanadium pentoxide, molybdenum oxide and cerium oxide catalyst subjected to phosphorylation treatment. The preparation method comprises the following steps: (1) preparing a first solid-liquid mixture in which a vanadium pentoxide precursor, a molybdenum oxide precursor, a cerium oxide precursor and titanium dioxide are uniformly dispersed, drying the first solid-liquid mixture, grinding and roasting to obtain an intermediate product; and (2) preparing a second solid-liquid mixture in which the intermediate product and the precursor for phosphorylation are uniformly dispersed, drying the second solid-liquid mixture, grinding, and roasting to obtain the denitration catalyst with low sulfur dioxide oxidation rate. The low-cost control of NOx is realized, and the generation of sulfur trioxide is reduced at the same time.

The invention discloses an oxidation reaction device for an isotope analysis system, and belongs to the technical field of carbon isotope analysis systems.The gas inlet end of the oxidation reaction device is communicated with a gas chromatography, and the gas outlet end of the oxidation reaction device is communicated with an isotope ratio mass spectrometry. A gas inlet end of the heating furnace is communicated with a gas outlet of the gas chromatography, and a gas outlet end of the heating furnace is communicated with the isotope ratio mass spectrum; the oxidizing agent spraying structure is at least partially arranged at the upper end of the inner cavity so as to uniformly spray an oxidizing agent into the inner cavity; the oxidizing agent circulating structure is communicated with the oxidizing agent spraying structure through a first pipeline, and the oxidizing agent circulating structure conveys the oxidizing agent sprayed by the oxidizing agent spraying structure and collected at the bottom of the inner cavity to the oxidizing agent spraying structure again, so that repeated utilization of the oxidizing agent is achieved. According to the invention, by arranging the oxidant spraying structure, an oxidant is uniformly scattered in the heating furnace, so that the oxidation reaction is more sufficient, and the oxidation effect is enhanced.

The invention belongs to the technical field of water treatment, and relates to a method for removing new pollutants in water by using a far ultraviolet assisted sodium hypochlorite system. The method comprises the following steps: S1, adjusting the pH value of a to-be-treated aqueous solution containing new pollutants to 4-10; s2, adding a sodium hypochlorite oxidizing agent into the aqueous solution to be treated and continuously stirring; and S3, carrying out a reaction under the ultraviolet wavelength of 200 to 230 nm. Compared with the prior art, the method has the advantages that the far ultraviolet light source and the sodium hypochlorite are jointly applied, so that the oxidation capacity of the sodium hypochlorite is improved, meanwhile, the high-energy characteristic of far ultraviolet light is fully played, efficient photocatalytic degradation of new pollutants difficult to degrade is realized, and the overall water treatment efficiency is remarkably improved.

The invention belongs to the technical field of photocatalysts, and particularly discloses a CoMo6 / Fe3O4 (at) ZnO composite material and a preparation method and application thereof.The photocatalytic mechanism of the prepared CoMo6 / Fe3O4 (at) ZnO composite material is as follows: after the composite material CoMo6 / Fe3O4 (at) CeO2 is excited by light, photo-induced electrons on CoMo6 are transferred to the surface of Fe3O4 (at) ZnO, meanwhile, photo-induced holes absorb an electron donor H2O on the surface of POM polyanions to react to generate. OH, and the CoMo6 / Fe3O4 (at) ZnO composite material is obtained. The. OH free radical with strong oxidation capability oxidizes eosin B to generate oxidation products such as CO2 and the like. In the experiment, a small amount of electrons absorb an electron acceptor O2 and reduce the electron acceptor O2 to generate. O2 <->, and the two free radicals act at the same time to promote the photocatalytic reaction. When a magnetic field is added outside, the oxidation capacity and rate of. OH are also accelerated, so that the degradation rate of eosin B is improved; the highest degradation rate on an eosin B dye can reach 92.21%; after an external magnetic field is applied, the degradation rate is obviously accelerated, and the reaction is almost complete 40 minutes after illumination is started.

The invention discloses a multi-layer modified vitamin C liposome and a preparation method thereof. The liposome comprises a vitamin C core material positioned on the inner layer and a wall material positioned on the outer layer of the vitamin C core material, the wall material is prepared from the following raw materials in parts by weight: 12 to 16 parts of phospholipid, 1 to 2 parts of chitosan, 0.1 to 0.5 part of sodium alginate, 0.2 to 1.7 parts of calcium chloride and 22 to 27 parts of Arabic gum; the mass ratio of the vitamin C core material to the wall material is (1-1.5): 1. The vitamin C liposome provided by the invention not only can effectively prevent content leakage, but also can solve the problem that vitamin C is easy to oxidize. According to the preparation method provided by the invention, by optimizing the adding sequence of the raw materials, the stable liposome is formed, and the oxidability of the vitamin C is effectively improved.

The invention relates to application of iron-doped carbon nitride rich in nitrogen vacancies, in particular to application of the iron-doped carbon nitride rich in the nitrogen vacancies in degradation of active pharmaceutical compounds based on a degradation system of UV-LED / NaClO and / or UV-LED / NH2Cl. The removal rates of the UV-LED / NaClO / Fe-g-C3N4-Nv degradation system and the UV-LED / NH2Cl / Fe-g-C3N4-Nv degradation system on carbamazepine are as high as 98.3% and 67.2% respectively, the oxidation capacity of g-C3N4 is enhanced through iron doping, a new intermediate energy level is formed through introduction of nitrogen vacancy, the effect of an electron capturer is achieved, a new electron transmission channel is formed under the combined action of iron doping and nitrogen vacancy, and the degradation efficiency of carbamazepine is improved. The migration rate of electrons and the separation efficiency of photon-generated carriers are obviously improved; meanwhile, the Fe-g-C3N4-Nv achieves efficient activation of NaClO and NH2Cl through O2.-and hvb + under UV-LED irradiation, the yield of HO., RCS and RNS in a degradation system is increased, the adaptability to water quality fluctuation is high, and stable degradation of pharmaceutical active compounds can be achieved.

The invention provides a wet desulphurization oxidation air adjusting system and method with dual-mode verification feedback. A slurry storage tank is connected with a reactor through a sampling unit; the liquid storage bottle is filled with an iodine standard solution and a sodium thiosulfate standard solution, and is connected to the reactor through a hose and a precise injection pump; an oxidation-reduction electrode is inserted into the reactor; and the upper computer measures the oxidation-reduction potential of the solution in the reactor through the oxidation-reduction electrode so as to judge the titration end point and the consumption of the consumed titration standard solution, and inverts the concentration of sulfite ions in the desulfurization slurry. The upper computer is also connected with a dissolved oxygen analyzer to detect the concentration of dissolved oxygen in the slurry in the slurry storage tank; and mutual verification with the concentration of sulfite ions is carried out to realize dual-mode feedback regulation and control of the oxidation system. According to the invention, the complex nonlinear relationship and time dependence of each measurement parameter can be effectively captured, the accuracy of continuous and automatic measurement of sulfite ions in the desulfurization slurry is realized, and the precision is ensured.

The invention relates to the technical field of carbon fiber spinning composite material production, and discloses a special production device for a carbon fiber spinning composite material, the special production device comprises a pre-oxidation furnace and a carbonization furnace, the pre-oxidation furnace is located on the horizontal left side of the carbonization furnace, and an unwinding roller is installed on the horizontal left side of the pre-oxidation furnace; a plurality of groups of polyacrylonitrile tows on the unwinding roller penetrate through the inner rotary drum seat to enter an oxidation chamber of the pre-oxidation furnace; and an inlet and an outlet are respectively formed in the middle positions of the left end surface and the right end surface of the carbonization furnace. According to the special production equipment for the carbon fiber spinning composite material, the pressure wheel on the anti-shrinkage structure makes contact with the lower end face of the polyacrylonitrile tow, the tension spring sequentially acts on the pressure wheel, the polyacrylonitrile tow is expanded, and therefore the shrinkage amount of the polyacrylonitrile tow is counteracted; meanwhile, the air outlet short pipes are evenly distributed on the two sides of the anti-shrinkage structure, direct air blown upwards directly acts on the lower end face of the polyacrylonitrile tow, and stretching and expansion of the linear polyacrylonitrile tow are assisted.

The utility model relates to a system for treating sludge drying flue gas based on hydrodynamic cavitation. The system comprises cyclone dust removal equipment, a centrifugal fan, spray washing equipment, hydrodynamic cavitation equipment, a gas-liquid separator and an activated carbon adsorber which are connected in sequence, one end, far away from the spraying and washing equipment, of the liquid discharging pipeline is connected with the water tank, an inlet of the filtering equipment is provided with a first pipeline connected with the water tank, an outlet of the filtering equipment is provided with a second pipeline connected with the reaction liquid storage tank, and an outlet of the reaction liquid storage tank is provided with a third pipeline; a delivery pump is arranged at one end, far away from the reaction liquid storage tank, of the third pipeline, a fourth pipeline connected with the hydrodynamic cavitation equipment is arranged at an outlet of the delivery pump, and the ozone generator is connected with the fourth pipeline through a fifth pipeline. The ozone is coupled in the hydrodynamic cavitation section, so that the mass transfer effect of the ozone can be enhanced, the oxidation effect of the ozone is further enhanced, and the effects of short reaction period, high stability, low cost and high efficiency are achieved.

The invention provides a carbon-silicon skeleton oxidized metal-based catalyst and a preparation method thereof.The catalyst is prepared by using coal gangue as a carbon source and a silicon source and a carbon-silicon skeleton as a carrier through a supercritical water impregnation method, and the preparation method comprises the steps of coal gangue pretreatment, metal impurities and soluble substances are removed; the pretreated coal gangue is put into a tubular furnace, nitrogen is introduced, a reaction is carried out at the temperature of 1150-1200 DEG C, natural cooling is carried out after the reaction is completed, an obtained product is cleaned and dried, and the carbon-silicon framework is obtained; according to the present invention, the carbon-silicon skeleton is adopted as the carrier, the supercritical water impregnation method is adopted to prepare the catalyst, and the prepared catalyst is activated through the plasma technology, such that the obtained carbon-silicon skeleton oxidation metal-based catalyst has high activity and high oxidation capacity; the problem of catalytic treatment of degradation-resistant and high-difficulty organic wastewater is also effectively solved.

The invention discloses a composite decolorizing agent for high-iron aluminosilicate glass and an application method thereof.The composite decolorizing agent comprises a glass mixture of the high-iron aluminosilicate glass and the composite decolorizing agent added into the glass mixture, the composite decolorizing agent is composed of CeO2, Co2O3 and Nd2O3, the content of CeO2 accounts for 0.05%-0.15% of the glass mixture, the content of Co2O3 accounts for 1.5 ppm-2. 5ppm of the glass mixture, the content of Nd2O3 accounts for 1.5 ppm-2. 5ppm of the glass mixture, and the content of Nd2O3 accounts for 1.5 ppm-2. 5ppm of the glass mixture. The content of the Nd2O3 is 0.01%-0.02% of the content of the glass mixture. According to the present invention, the low-cost common white sand is adopted to introduce the SiO2, and the CeO2, the Co2O3 and the Nd2O3 are added to remove the bad color in the neutralized glass, such that the whiteness of the glass can be effectively improved, the control on the color of the alumina silicate glass can be achieved under the high iron content, the stable decolorization effect is provided, and the production cost is reduced.

The invention relates to the technical field of catalysts, in particular to attapulgite loaded sulfurized nano zero-valent iron as well as a preparation method and application thereof. According to the specific technical scheme, the preparation method of the attapulgite-loaded vulcanized nanoscale zero-valent iron comprises the following steps: adding modified ATP into FeSO4. 7H2O, stirring and mixing in a nitrogen atmosphere, adding anhydrous glycerol, stirring, dropwise adding a mixed solution of Na2S and NaBH4, and after the reaction is completed, centrifuging, washing and drying to obtain the S-nZVI (at) ATP composite material. According to the invention, the problem that nZVI is easy to agglomerate and oxidize in the prior art is solved, and the activation capability of the nZVI on persulfate can be greatly improved.

The invention relates to the technical field of nano materials, in particular to a CoMo-BTNT anode, a preparation method and application thereof, and the preparation method comprises the following steps: preparing a Ti substrate; preparing a titanium dioxide nanotube array by using a Ti substrate; co-Mo oxide layer deposition liquid is deposited on the surface of TNA through a direct-current electrodeposition method, then annealing heat treatment is conducted, and CoMo-TNA is prepared; preparing a CoMo-BTNT anode by taking CoMo-TNA as a cathode and a Pt sheet as an anode; the invention also provides an application of the CoMo-BTNT anode in degradation of antibiotics in water. According to the invention, TNA is used as a base layer, an active CoMo oxide layer is deposited on the TNA base layer, the TNA base layer has good electrical conductivity and electro-catalytic performance, the electrical conductivity of the anode is improved, an effective electrically-assisted activated PMS degradation tetracycline system is constructed, and a new solution thought is provided for treatment of tetracycline wastewater.

The present invention provides a diesel vehicle oxidation catalyst and a preparation method thereof, and relates to the technical field of oxidation catalysts of diesel engine tail gas purification systems, the catalyst comprises a carrier, a lower layer coating coated on the carrier and an upper layer coating coated on the lower layer coating, the lower layer coating comprises a noble metal Pt and a manganese-containing composite oxide, and the upper layer coating comprises a noble metal Pt and a manganese-containing composite oxide. The upper coating comprises precious metal Pt, precious metal Pd and silicon-aluminum composite oxide; the coating amount of the lower-layer coating is 60-100 g / L, and the coating amount of the upper-layer coating is 70-90 g / L. According to the diesel vehicle oxidation catalyst and the preparation method thereof, through the synergistic oxidation effect of the rare earth manganese zirconium material and the platinum group metal, the usage amount of the platinum group noble metal can be reduced, the oxidation performance of the catalyst is improved, the usage amount of the platinum group noble metal in the catalyst is small, the cost is low, the ignition temperature is low, the NO oxidation capacity is high, and CO / HC combustion can be catalyzed at a low temperature.

The invention relates to a method for extracting vanadium and chromium through self-catalysis of vanadium-containing and chromium-containing mud reinforced by micro-nano bubbles in an alkaline solution, which comprises the following steps: introducing micro-nano oxygen-containing bubbles into mixed slurry of the alkaline solution and the vanadium-containing and chromium-containing mud to carry out synchronous reaction which comprises a Fenton-like reaction and an alkaline leaching reaction which are synchronously carried out, and in the synchronous reaction process, an alkali solution and vanadium-containing and chromium-containing sludge are intermittently supplemented, and a vanadium-containing and chromium-containing leaching solution is obtained. According to the method, active oxygen generated by strengthening of the microbubbles and hydroxyl free radicals generated by Fenton-like reaction are used for jointly strengthening damage of phase structures containing vanadium and chromium in the sludge containing vanadium and chromium, and oxidation dissolution of vanadium and chromium is promoted. And efficient leaching of vanadium and chromium in the vanadium-containing chromium mud is achieved under the conditions of low alkali concentration and low temperature, and industrial large-scale production is easy to achieve.

The invention discloses an organic waste gas treatment device with multiple oxidation treatment, and relates to the field of waste gas treatment devices. The device comprises a spraying tower, a rotating assembly, a spraying assembly, a water absorbing assembly, a cleaning assembly, a dust absorbing assembly and a circulating assembly, the rotating assembly is arranged at the top of the spraying tower, the spraying assembly is arranged in the spraying tower and connected with the rotating assembly, the water absorption assembly is arranged in the spraying tower and matched with the rotating assembly, the cleaning assembly is arranged on the side face of the rotating assembly and located in the dust absorption assembly, and the dust absorption assembly is arranged in the center of the spraying tower. The circulating assembly is arranged at the bottom of the spraying tower and connected with the rotating assembly, a driving motor is started, the driving motor drives a driving shaft to rotate, the driving shaft drives a spraying pipe to rotate through a connector, spraying is conducted through a spraying head, spraying oxidation is conducted on gas below the spraying head, and in the rotating process of the spraying head, the spraying area is enlarged; and the waste gas and the spraying liquid can be better combined, so that the oxidation effect is improved.

The application discloses a nuclide synthesis hot chamber convenient to clean and a cleaning method thereof, which comprises a synthesis chamber, an exhaust mechanism arranged on the top of the synthesis chamber, and a cleaning mechanism arranged on the inner side of the synthesis chamber. The synthesis chamber comprises a synthesis cavity, a partition plate arranged in the synthesis cavity, and an ultrasonic cleaner arranged at the bottom of the partition plate. The ultrasonic cleaner is arranged in a plurality of pieces and is fixedly connected to the bottom of the partition plate uniformly. A laser three-dimensional scanner is fixedly connected to the top of the synthesis cavity. The exhaust mechanism comprises a gas storage cavity, a main pipeline arranged on one side of the gas storage cavity, and a gas conveying assembly arranged in the gas storage cavity. The main pipeline is used for conveying the gas in the gas storage cavity to the synthesis chamber and exhausting the residual gas in the synthesis chamber. The cleaning mechanism is mainly used for conveying cleaning liquid to the synthesis chamber to clean the synthesis chamber. The combination of nitrogen and ultrasonic waves improves the cleaning degree of the synthesis chamber and reduces the residual toxic gas.

The invention relates to a method for adjusting the norfloxacin removal performance of ferrate based on buffer salts, and belongs to the technical field of novel pollutant environmental protection, and the method mainly comprises the following steps: preparing different types of buffer salts, and calculating the norfloxacin removal rate to evaluate the norfloxacin removal performance of ferrate in different buffer systems.

The invention discloses a PtCo (x%) / TiO2 catalyst for a catalytic combustion reaction of vinyl chloride as well as a preparation method and application of the PtCo (x%) / TiO2 catalyst. The PtCo (x%) / TiO2 catalyst comprises the following components in percentage by weight: 1% of Pt, 1-20% of Co and 79-98% of TiO2. The catalyst provided by the invention can completely oxidize vinyl chloride into hydrogen chloride or chlorine, carbon dioxide and water at a lower reaction temperature, and then the hydrogen chloride or chlorine, carbon dioxide and water are absorbed by alkali liquor, so that standard emission of vinyl chloride waste gas is realized, polychlorinated by-products with higher toxicity are not generated, and secondary pollution is avoided. 1000 ppm of vinyl chloride can be completely eliminated at 360 DEG C, no polychlorinated by-product is generated in the reaction process, and the conversion rate is kept stable continuously for 24 hours. The PtCo (x%) / TiO2 catalyst is prepared by adopting an equivalent-volume impregnation method, the activity, the selectivity and the stability of the catalyst can be remarkably improved, meanwhile, the preparation method is simple and easy to implement, and industrialization is easy to realize.

The invention relates to a halogen-doped delta-MnO2 catalyst and an application thereof. The halogen-doped delta-MnO2 catalyst is prepared from raw materials containing potassium permanganate and ammonium halide, the application of the halogen-doped delta-MnO2 catalyst in activation of peroxymonosulfate comprises the following steps: firstly, adding the halogen-doped delta-MnO2 catalyst into bisphenol A raw water, uniformly stirring and mixing, then adding a peroxymonosulfate solution, and stirring and reacting to obtain a bisphenol A-removed water body. The halogen-doped delta-MnO2 catalyst has the advantages of being high in catalytic activity, capable of being recycled and beneficial to improving the water treatment efficiency of a PMS advanced oxidation technology, peroxymonosulfate can be efficiently activated so as to remove bisphenol A in water, operation is easy, energy is saved, and environment friendliness is achieved.

The present invention belongs to the technical field of sewage treatment, especially to an oxidation-reduction device and method for treating high-concentration toxic and harmful industrial sewage. In view of the poor contact effect between ozone and sewage at the bottom during oxidation, which results in the inability to effectively oxidize pollutants inside the sewage at the bottom, and thus is not conducive to subsequent reduction operations, the following scheme is proposed, including a mounting base, the top of which is fixedly connected to two support frames. The oxidation-reduction device and method for treating high-concentration toxic and harmful industrial sewage disclosed in the present invention have the function of increasing the sewage treatment effect. During the oxidation operation, the device can extract and lift the sewage at the bottom, and discharge it after lifting, so that the sewage at the bottom contacts with the ozone in the rising process, thereby increasing the contact effect between the sewage and the ozone during oxidation, thereby increasing the oxidation effect, and improving the subsequent reduction effect, and increasing the use effect of the device.

The application relates to a method for controlling edge grain defect of oriented silicon steel, characterized in that the method comprises the following steps: coating a set amount of grain defect control slurry in a set range of the inner ring and / or the outer ring of the upper end face and / or the lower end face of an oriented silicon steel coil to reduce the edge grain defect occurrence rate of the oriented silicon steel; and covering the whole end face of the upper end of the steel coil with a metal cover plate on the upper end cover of the steel coil. The method coats the grain defect control slurry in a certain area of the upper and / or lower end face of the steel coil, so that the grain defect control slurry can increase the local interlayer oxidation of the strip steel at high temperature, and then increase the bottom layer reaction, so as to control the width and length of the edge grain defect.

The present invention relates to a treatment process for barium slag leachate, comprising a leachate collection and regulating tank which is sequentially arranged and sequentially treats the leachate, a chemical pre-precipitation tank for synchronously removing sulfur and barium, an oxidation flocculation reaction tank for oxidizing sulfide into sulfur element and flocculating and precipitating, a first sedimentation tank for solid-liquid separation, a deep oxidation tank for deep oxidation to remove organic pollutants and ammonia nitrogen, a second sedimentation tank for solid-liquid separation, a laminated filter and a clean water temporary storage tank for treating suspended matter in leachate wastewater, and also comprising a sludge treatment system for treating sludge separated from each sedimentation tank. The present invention has reasonable sequential connection between each process section, has the advantages of high efficiency, low energy consumption and easy operation and management, can realize effective joint removal of pollutants such as sulfide, barium ion, CODcr, ammonia nitrogen, TP and SS in barium slag leachate, and the effluent meets the direct emission standard requirements in the water pollutant emission limit in the "Inorganic Chemical Industry Pollutant Emission Standard".

The utility model discloses a wine decanter. The wine decanter comprises a pot body, a flow diffusing plate and a negative ion generator, the pot body is provided with a wine decanting cavity and a liquid inlet, the liquid inlet is communicated with the wine decanting cavity, the flow diffusing plate is arranged at the liquid inlet and provided with a plurality of flow diffusing holes formed at intervals, the negative ion generator is arranged on the pot body, and a release terminal of the negative ion generator extends into the wine decanting cavity. According to the decanter, the oxidation effect of wine in the decanter can be improved, and the decanting time can be shortened.

The present invention discloses a comprehensive treatment system and treatment process for organic wastewater and tail gas in a contaminated site, and belongs to the field of soil remediation. The system of the present invention includes a wastewater treatment unit and a tail gas treatment unit, and the wastewater treatment unit includes an oxidant dosing unit, a first ultraviolet reaction unit and a second ultraviolet reaction unit connected in sequence; the oxidant dosing unit is used to add an oxidant to the wastewater to be treated; the wastewater to be treated is treated by ultraviolet photocatalytic oxidation technology, and the oxidation process includes a rapid oxidation stage and a deep oxidation stage. Through the segmented gradient oxidation process, the utilization rate and oxidation effect of the oxidant are greatly improved, and the operating cost is reduced. The tail gas treatment unit includes a plurality of adsorption towers, and the plurality of adsorption towers are connected in parallel, and the adsorption towers are filled with adsorption resin. The main purpose of the present invention is to reasonably and efficiently treat the wastewater and tail gas extracted by the extraction unit, and it occupies a small area, which is convenient for skid installation, installation, disassembly and transportation.