32results about How to "Reduce oxidation efficiency" patented technology

The invention provides a device for degrading waste water containing high-concentration nitrobenzene through air stripping-ozone/ultrasound oxidation and treatment method of the device, belongs to the technical field of high-concentration nitrobenzene-containing waste water treatment, and aims to solve the problem of high cost of ozone-based advanced oxidation process for treating high-concentration nitrobenzene-containing waste water. The method comprises the following steps: firstly, high-concentration nitrobenzene-containing waste water is in contact with air in a hypergravity device to complete air stripping mass transfer process; after the air stripping mass transfer process is completed, the waste water is subjected to ultrasonic wave degradation, the degraded waste water is fed into the hypergravity device to react with ozone gas, the waste water containing ozone returns to an ultrasound liquid storage pot, and then nitrobenzene is degraded under an ultrasonic wave synergistic effect. The air-stripping method is used to enable target pollutant content in the waste water to be reduced to carry out oxidation reaction, so that waste water quality change is reduced to the largest extent, and the intermediate product production amount is further reduced, the ozone and hydroxyl free radical consumption substance production amount can be reduced, the oxidation efficiency is improved, the ozonation efficiency is improved by 40%-50%, the treatment time is shortened by 80%, the usage amount of ozone is reduced by 70%, and the treatment cost is reduced by 50%.

The invention discloses a method for activating lignite. The method comprises the following steps: mixing lignite powder, a photocatalytic oxidizing agent and water uniformly; and completely stirringunder the condition of ultraviolet irradiation, adding the oxidizing agent in batches, and reacting at 30 to 60 DEG C for 0.15 to 24 hours to obtain activated lignite, wherein the photocatalytic oxidizing agent is titanium dioxide. By the method provided by the invention, the water-soluble organic humus content and the active group content of the lignite can be increased very obviously and large-scale application of the lignite is further realized; and the method provided by the invention is environment-friendly, pollution-free, short in process route, low in cost, simple in requirement on equipment and mild in condition, and can be applied to industrialized mass production.

The invention discloses a system for treating anaerobic digestion liquid of sludge through acidification-free Fenton oxidation, and a treatment method for the anaerobic digestion liquid of sludge. Thesystem comprises an adjusting tank, a coagulating sedimentation device, a Fenton catalytic oxidation device and a neutralization and sedimentation device. The method comprises the following steps: introducing the anaerobic digestion liquid of sludge into the adjusting tank; conveying the anaerobic digestion liquid of sludge in the adjusting tank into the coagulating sedimentation device for coagulating sedimentation treatment; conveying effluent obtained after coagulating sedimentation treatment into the Fenton catalytic oxidation device for Fenton catalytic oxidation treatment; allowing a part of effluent obtained after Fenton catalytic oxidation treatment to flow back to the water inlet end of the Fenton catalytic oxidation tank and the rest effluent to enter the neutralization and precipitation device; and adjusting the pH value of the rest effluent entering the neutralization and sedimentation device in a neutralization and sedimentation tank, and then carrying out neutralizationand sedimentation treatment. According to the method, acidification-free treatment is realized, the dosage of Fenton reaction chemicals is reduced, operation cost is reduced, and the utilization efficiency of hydroxyl radicals and the removal rate of organic matters are improved.

The invention discloses a lampshade for motorcycle headlamps and a preparation method of the lampshade, and relates to the technical field of motorcycle accessories. The lampshade comprises, by weight, 280 to 300 parts of polycarbonate, 80 to 100 parts of polyvinyl chloride, 5-8 parts of titanium dioxide, 3-5 parts of an anti-aging agent, 3-4 parts of a plasticizer, 3-5 parts of a silane couplingagent, and 0.4 to 0.6 part of a surfactant. Titanium dioxide is an important inorganic chemical material and has the characteristics of high ultraviolet resistance, good visible light permeability, high chemical activity and the like. Titanium dioxide has good absorption capacity on UVA (300-400 nm) and UVB (280-300 nm), cannot be decomposed or discolored after absorbing ultraviolet rays, and hasultraviolet absorption capacity due to the fact that titanium dioxide is filler for enhancing mechanical properties, therefore, titanium dioxide can enhance the strength of the lampshade and improve the ageing resistance of the lampshade. Meanwhile, the anti-aging effect of the anti-aging agent is adopted for cooperation, so that the anti-aging performance of the lampshade is further effectively improved, and the light transmittance of the lampshade is guaranteed.

The invention discloses an environmentally-friendly process with a complete reaction in an ammonia desulfurization device. The process comprises the following steps: when the ammonia desulfurization device is used, boiler flue gas with a temperature of 120-150 DEG C is subjected to gas-solid separation by a first cyclone separator, a part of flue gas after gas-solid separation is subjected to desulfurization and oxidation treatment, after treatment is performed by a second cyclone separator, the treated gas flows into an evaporative dryer through a second circulation pump, the other part of the boiler flue gas with the temperature of 120-150 DEG C treated by the first cyclone separator is introduced into the evaporative dryer, the dried particulate matter obtained by the evaporative dryer enters an ammonium sulfate bin, and packaging treatment is performed by using an automatic packaging machine. According to the process provided by the invention, the first cyclone separator is arranged to separate dust in the boiler flue gas to prevent desulfurization efficiency for sulfur dioxide in the flue gas from being reduced, an ammonia concentration in ammonia water is controlled at 10%-20% to prevent the ammonia water concentration from being too high, if the ammonia water concentration is high, ammonia escapes, and if the ammonia water concentration is too low, desulfurization is incomplete, so that under the ammonia concentration condition, the desulfurization effect is good, and an ammonia escape phenomenon is inhibited; and the process has a novel structure and is convenient to operate.

The invention discloses a protective component, which is used for being combined with a shoe sole to form a vamp or combined with the vamp to form a vamp protective layer, and comprises a surface layer, an inner layer and a protective layer arranged between the surface layer and the inner layer, and the protective layer is formed by ESA materials in an injection molding mode. A body part is used for covering the instep, the wing parts extend to the two sides of the body part, and the wing parts are used for covering the ankle surface; wherein a rib structure is formed, and a plurality of firstconcave parts are arranged on the upper surface of an area defined by the rib structure. The invention further discloses two kinds of protective shoes which are provided with the protective components. The protection component is used for providing comprehensive protection for the instep and the ankle surface, and the protection effect is good; and the protective component is integrally light andeasy to install. The protective shoe not only can provide comprehensive protection for the instep, but also is ideal in foot holding wrapping performance, light, convenient and suitable for wearing.

The invention relates to a preparation method of a composite material for inhibiting oxidation corrosion by using potassium oleate modified metal sulfide, and belongs to the technical field of surface passivation. The preparation method comprises the following steps of ball-milling pyrite for 5 minutes, sieving with a 100-mesh sieve, washing with ultrapure water (volume: 1: 5) for five times, refrigerating in a refrigerator at-20 DEG C for 12 hours, drying in a freeze dryer for 48 hours, preparing potassium oleate into 5% (volume ratio) by using ultrapure water, putting 1mL and 0.5 g of pyrite samples into a 50mL beaker, shaking the beaker to uniformly spread the samples at the bottom of the beaker, and drying in a fuming cupboard to obtain the composite material. The composite material can be applied to oxidation of surface-passivated pyrite; under the simulated sunlight condition, pyrite oxidation is inhibited in a hydrochloric acid solution with the pH value of 2, and the inhibition rate can reach 80%.