44 results about "Concerted reaction" patented technology

The invention relates to a method and device for degrading organic wastewater by micro active oxygen generated through electrocatalytic reduction of air oxygen, and belongs to the technical field of wastewater treatment. According to the method and device, air (aeration) is continuously connected into the cathode inside an electrochemical reactor, a large amount of micro active oxygen such as O3, free radical *OH and H2O2 is generated through a concerted reaction under the combined action of various catalysts and cathode currents, the micro active oxygen has extremely-high oxidizing capacity, hence, organic matter in the wastewater can be directly oxidized and degraded, and the purpose of deeply removing organic pollutants is achieved. In addition, the adopted method and device are simple, power consumption is small, and the degradation effect is good. Moreover, equipment can continuously and efficiently operate in a circulation mode, and great practical application value is achieved.

The invention discloses a diamagnetic plastic composite material and a preparation method thereof. The diamagnetic plastic composite material comprises, by weight, 40-76% of plastic, 10-40% of a magnetic material, 10-20% of modified neodymium iron boron, 5-10% of a compatilizer, 0.5-1% of a lubricant and 0.5-1% of an anti-oxidant. Plastic is modified by the magnetic material and the modified neodymium iron boron and then undergoes a concerted reaction with the compatilizer, the lubricant and the anti-oxidant to produce the diamagnetic antistatic plastic composite material. The preparation method has simple processes and a low cost and is suitable for industrial production.

The invention provides a preparation method of a transition metal hexacyanoferrate / titanium dioxide nanocomposite catalyst. According to the preparation method, by taking transition metal chloride or transition metal nitrate, potassium ferrocyanide and titanium dioxide as raw materials, through an in-situ chemical solution method, in-situ growth of transition metal hexacyanoferrate (MHCF) is carried out on the surfaces of titanium dioxide nanoparticles to obtain the MHCF / TiO2 nanocomposite catalyst. The invention also provides a method for degradation of organic pollutants by light-fenton concerted reaction of the MHCF / TiO2 nanocomposite catalyst. According to the method, in dark reaction in the absence of light, the organic pollutants can be degraded by the MHCF in the form of fenton reaction, while under ultraviolet irradiation, the titanium dioxide (photocatalyst) can generate electron-hole pairs, electrons can accelerate reduction of ferric iron oxidized by H2O2 in the MHCF, meanwhile, the MHCF receiving the electrons of the titanium dioxide can also inhibit compounding of photoelectron holes, and then accelerate the generating efficiency of hydroxyl radicals during fenton reaction and a photocatalytic process, and the synergistic effect of the MHCF and the electrons has very high degradation efficiency for various different organic pollutants.

The invention discloses a preparation method of arbidol hydrochloride. The preparation method comprises the following steps of: (1) performing hydroxylation reaction on 3-iodo-4-nitrophenol serving as a raw material by using acetyl chloride to obtain a compound I; (2) performing substitution reaction on the compound I and ethyl acetoacetate under the action of alkali to obtain a compound II; (3) performing reduction-condensation concerted reaction on the compound II under the conditions of acetic acid and iron powder to synthesize an indole ring, and obtaining a compound III; (4) performing N-methylation reaction on the compound III by using dimethyl sulfate to obtain a compound IV; (5) performing di-bromination reaction on the compound IV in carbon tetrachloride by using bromine to obtain a compound V; (6) reacting the compound V and thiophenol under the alkali condition, and obtaining a compound VI after acidifying; (7) preparing a compound VII from the compound VI in the presence of a reaction solvent, namely aqueous solution of dimethylamine and formaldehyde; and (8) acidifying the compound VII in hot acetone to obtain the arbidol hydrochloride. The preparation method is facile in raw materials, mild in reaction conditions, high in yield, easy in separation and purification, low in cost and suitable for industrialized production.

The invention relates to an active iron purifier and bank slope wetland system coupled purifying culture pond drainage system and a drainage method. The system is structurally characterized in that a trash rack and a filter screen are arranged at an inlet of a drainage pipe of a culture pond, the lower end of the drainage pipe is provided with three-way pipes which are communicated with active iron purifiers, a water outlet pipe of each active iron purifier is communicated with a water permeable pipe which is buried inside a gravel bed, a non-sand concrete partition A is arranged between the gravel bed and a bank slope subsurface wetland, and a non-sand concrete partition B is arranged between the bank slope subsurface wetland and a river channel. A water outlet pipe valve is arranged on the water outlet pipe of each active iron purifier, a flushing drainage pipe valve is arranged on the drainage pipe at the bottom of the active iron purifier, and the flushing drainage pipe valve is connected with a flushing drainage pipe which is connected into a sludge well. The drainage system and the drainage method have the advantages that active iron and anaerobes are coupled to be in concerted reaction so as to degrade antibiotics in drained water of the culture pond; a bank slope is utilized fully, cost of capital construction is lowered, and the gravel bed and the bank slope subsurface wetland have good purification effect on outlet water.

The invention relates to the technical field of water treatment, and discloses a sewage treatment method through a concerted reaction of ozone and a supported catalyst. The method comprises the following steps that (1) a coagulant and a coagulant aid are added into to-be-processed sewage, stirring is conducted, and water containing micro-flocculation groups is formed; (2) high-density nano-bubblesare introduced in the water which is processed in the step (1) and contains the micro-flocculation groups, and the micro-flocculation groups are removed by a mud scraper and separated from the water;(3) the separated water in the step (2) is conveyed into a catalytic oxidation tower, a jet device is utilized for mixing the ozone with high-pressure return water of the catalytic oxidation tower, the mixture enters the catalytic oxidation tower, the ozone is added circularly, and a catalytic oxidation reaction is conducted at normal temperature and normal pressure; the catalytic oxidation toweris filled with the catalyst, and the catalyst is the supported catalyst with a transition metal oxide as an active component and aluminium oxide and / or ceramsite as a carrier. The method can effectively remove organic pollutants in sewage, and is high in ozone utilization rate and low in operation cost.

The invention relates to an enhanced nitrogen and phosphorus removal device and technology for sewage.The technology comprises the steps that the sewage is pretreated to enter an anaerobic tank to be subjected to a mixing reaction with sludge flowing back from a strain separator and then enters the strain separator sequentially through an anoxic tank and an aerobic tank; the strain separator separates strains in mixed liquid, the high-density strains are set to the bottom and flow back to the anaerobic tank through a pump, the low-density strains enter a strain-algae concerted reaction tank together with water flow, biological stuffing is arranged in the concerted reaction tank, the synergistic effect of microalgae and the strains is formed in a system, part of the microalgae and the strains form an algae-strain biological film, and then the nitrogen and phosphorus removal effect of the system is enhanced; yielding water is treated through a setting tank and disinfected, and sludge in the setting tank flows back to the algae-strain concerted reaction tank.According to the technology, the problems that when the urban sewage is treated through an existing A2 / O technology, the nitrogen and phosphorus removal effect is poor, and the cost is high are solved.The treatment technology has the advantages of being efficient in treatment, stable in water yielding, low in operation cost and the like and is economical, environmentally friendly and capable of achieving sustainable cyclic development.

The invention discloses a micro-arc oxidation composite aqueous fire retardant coating and a preparation method thereof. A micro-arc oxidization film layer is formed on the surface of a valve metallicmatrix by using a micro-arc oxidation method by adopting alkaline electrolyte, and then an aqueous fire retardant coating is compounded on the surface of the micro-arc oxidization film layer, whereinthe coating takes ammonium polyphosphate, pentaerythritol and melamine as a flame-retardant system, titanium dioxide as a pigment filler, and water as a solvent. When meeting fire, the flame-retardant system of the aqueous fire retardant coating on the outer layer achieves concerted reaction to form a dense spongy expanded carbonaceous layer, a two-dimensional lamellar structure of graphene oxideundergoes multilayer stacking in the carbonaceous layer to form a dense physically blocked layer so as to isolate transfer of outside heat to the inner layer, while the heat conductivity of the micro-arc oxidization film layer on the inner layer is low, so as to further isolate transfer of the heat to the matrix. The micro-arc oxidation composite aqueous fire retardant coating has excellent fireretardant and heat insulating performances, is applicable to valve metals of aluminum, magnesium, titanium and the like, and is strong in binding force, simple and environment-friendly in processing technology and low in cost.

The invention relates to an MBR wastewater treating system with double circular grooves, comprising a water inlet pipe, a water outlet pipe and a water treating area provided with a membrane biological reactor (MBR), wherein the water treating area comprises an outer groove channel and an inner groove channel which are separated by a pool wall; the MBR membrane biological reactor is installed in the inner groove channel; an overflow weir is installed in the pool wall between the inner groove channel and the outer groove channel; the system is internally provided with a flow pushing machine, a reflux inlet and an aeration rotating disc; and a central island is installed in the center of the inner groove channel. The system combines the oxidizing groove with the membrane biological reactor, effectively improves the concentration of the sludge in the groove by controlling the reflux ratio and the waterpower stopping time, and simultaneously promotes to generate the concerted reaction of oxidation, nitration, de-nitration, and short de-nitration; the synergistic effect of air backswing and biochemical oxygen supply is used, thereby improving the use rate of the oxygen in the treating system, effectively reducing the energy consumption of the technique, decreasing the requirement of carbon nitrogen ratio and improving the de-nitrification efficiency.

The invention provides a dehumidification reel which comprises a reel and a silicon dioxide-aluminum oxide gel film which is compounded on the surface of the reel. The invention further provides a preparation method of the dehumidification reel. The invention further provides a real dehumanization machine which adopts the reel which is the dehumidification reel provided by the technical scheme of the invention or the dehumidification reel which is prepared by using the method provided by the technical scheme of the invention. According to the dehumidification reel, silica sol is directly generated from a sodium silicate solution and a carbon dioxide gas, and reaction in the solution is prevented, so that non-uniform deposition effect of the silica sol caused by solution diffusion is prevented, and the dehumidification reel which is uniform in surface, compact and dense in structure and good in appearance is obtained. Meanwhile aluminum oxide sol which is subjected to concerted reaction with the silica sol is introduced into the dehumidification reel, so that the moisture adsorption property of a moisture adsorption medium is improved. In addition, the method provided by the invention is simple in step, the industrial degree is high, and the in-scale production requirement can be met.

The invention discloses a cooperative roasting method for zinc concentrate and iron pyrite. Specifically, the zinc concentrate and the iron pyrite are mixed to be subjected to fluidized bed roasting, and heat preservation is carried out for 30-120 min at the temperature of 500-700 DEG C after the fluidized bed roasting. Oxygen or air is led in the roasting and heat-preservation process. Roasted ore is leached out under the low-acid condition to obtain zinc sulfate leachate, and a zinc sulfate solution is led to the process of the zinc hydrometallurgy technique. According to the cooperative roasting method, the iron pyrite is applied to the fluidized bed roasting process of the zinc concentrate, so that a concerted reaction is carried out to promote oxygenation of the zinc concentrate; sulfur dioxide generated in the concerted reaction process is used for making acid, and concomitant valuable metal in the iron pyrite is recovered in the zinc smelting technique. By means of the method, the oxygenation efficiency of the zinc concentrate is effectively improved, and zinc ferrite is effectively decomposed; corrosion of roasted ore neutral leaching and weak acid leaching equipment is small, and precipitated iron slag generated in zinc hydrometallurgy is eliminated; the technological process is short, operation is simple, and the method is friendly to the environment.

The invention discloses a laccase composite dielectric body composed of two dielectric bodies: acetosyringone AS and 2,2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) ABTS, wherein the AS / ABTS molar ratio is (0.1-9) to 1. The composite dielectric body is formed from the acetosyringone AS and the 2,2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) ABTS; in a decolorization process, the 2,2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) ABTS can be subjected to concerted reaction with the acetosyringone, so as to improve the decolorization speed and decolorization rate of laccase.

The invention relates to a chemical microwave treatment method of industrial methyldiethanolamine wastewater. The method comprises the following steps: (1) providing the methyldiethanolamine wastewater to be treated; (2) aerating the methyldiethanolamine wastewater to be treated by adding an oxidizing agent so as to increase the amount of dissolved oxygen and evenly mix the oxidizing agent with the water body; (3) adding a sensitizing agent and a coagulant and evenly stirring and mixing; (4) performing a concerted reaction on the sensitizing agent and the coagulant under the action of microwaves so as to generate a coagulant with a better adsorption precipitation effect, thereby further enhancing the adsorption precipitation effect; (5) performing sludge and water separation; (6) leading a separated supernatant to be filtered; (7) generating ozone and hydroxyl radicals under the irradiation of a microwave electrodeless lamp so as to further degrade methyldiethanolamine until methyldiethanolamine is mineralized. According to the method, the effective reaction of methyldiethanolamine can be performed on the basis of the functions of microwave energy; the deep treatment on methyldiethanolamine is further performed via the electrodeless photochemical oxidation of the microwaves, so that the problem that the methyldiethanolamine wastewater is difficult to treat is solved.

The invention discloses a preparation process of a transparent epoxy nanocomposite material for encapsulating a high-power LED (light-emitting diode). The process comprises the following steps that epichlorohydrin is used as a raw material, an acid catalyst is added to carry out ring opening polymerization reaction, alkali is added to carry out closure reaction, and extraction and other processes are carried out to obtain a flexibilizer; amine terminated polyether curing agent and isophorone diamine are mixed, and ortho-hydroxy diphenyl ketone, benzotriazole ultraviolet vapor, hindered amine light stabilizer are added to carry out concerted reaction with nano SiO2 to obtain the required curing agent; ethanol and zinc acetate are mixed and distilled to obtain residual fractions; the residual fractions are mixed with an ethanol solution of lithium hydrate to obtain an ethanol solution of ZnO-QD, and tetraethoxysilane and ammonia water are added for centrifugation and drying to obtain ZnO-QD / SiO2; and the components are mixed and then mechanically dispersed, vacuumized, defoamed, poured and cured to obtain a ZnO-QD / SiO2 / epoxy encapsulating material.

The invention provides gas processing equipment. The gas processing equipment comprises a shell, wherein a gas flow channel is formed in the shell, a gas inlet of the gas flow channel is formed in one side wall of the shell, a gas outlet of the gas flow channel is formed in the other side wall of the shell, water is stored in the shell below the gas flow channel, super-micro bubbles of ozone are introduced into the water, an oxidation catalytic layer is arranged under the water, a spray piece is arranged above the front half section of the gas flow channel along a gas flow path, and a demisting module and an electrodeless ultraviolet photolysis module are arranged on the back half section of the gas flow channel in sequence towards gas flow. Correspondingly, the invention further provides a gas processing method. According to the gas processing equipment and the gas processing method, a high-temperature waste gas which contains dust, paint mist and high-temperature flammable organic matters can become a non-toxic harmless gas and inorganic mineralizers after a series of concerted reactions of catalytic oxidation, photolysis and the like, so as to ultimately reach the emission standard. The gas processing equipment has the advantages of simple and reasonable structure, high purification efficiency, strong adaptability, low operating cost and long service life and can be assembled and disassembled in a modular mode.

The invention discloses a rotary cage net type filling material electric flocculation reactor which comprises an electric flocculation reaction tank, a water inlet pipeline, a water outlet pipeline, a flocculation body discharge pipeline, a water inflow retaining wall, a rotary cage net type filling material electrode, an activated carbon particle feeding device, an ultra-violet lamp, a variable frequency motor and a controller, wherein an iron base filling material or an Al-based filling material, coated with a nanometer titanium dioxide photocatalyst, produces photoelectronchemistry concerted reaction under the effect of the irradiation of the ultra-violet lamp and the effect of an electric field, so that organic matters, which are hard to resolve and remove, in water can be converted into flocculation pollutants through photocatalysis chemical reaction, and concentrated on the surface of a filling material. According to the waste water processed through the reactor, the chemical oxygen demand removal rate can reach 95.1 percent, the chromaticness removal rate can reach 98.9 percent, the removal rate of suspended solids reaches 99.2%, the removal rate of organic matters difficult to resolve reaches 98.9%,and the removal rate of harmful microbes, virus and bacteria can reach 96.9 percent.

The invention relates to the technical field of preventing shiver after surgical anesthesia, in particular to a traditional Chinese medicine composition for preventing an adverse reaction after anesthesia and a preparation method of the traditional Chinese medicine composition. Liquorice, panax notoginseng, a betel nut, radix puerariae, pangolin, cordate houttuynia, hedyotis diffusa, dandelion, eucommia, a persimmon leaf, pine needles, cypress bark, bighead atractylodes rhizome, curcuma zedoary, kelp, garlic, ginger, hotbed chives seeds and a sponge gourd are combined and mixed in a classification and segmentation manner, and different decocting and extraction methods are performed on the mixed raw materials; the raw materials are added at different opportunities and in different physicochemical environments, so that active ingredients of the raw materials achieve concerted reaction; the drug efficacy of the composition is further improved; and an inhibiting effect on the adverse reaction arising from the anesthesia is improved.

The invention discloses an application of a modified protein for improving the viscoelasticity of minced fillet and products of minced fillet. According to the application, a protein solution and a polyphenol solution carry out reactions under the catalytic action of hydrogen peroxide, and then the solution obtained by the reactions and L-cysteine carry out concerted reactions in vacuum to obtainthe modified protein finally. The preparation process is simple, the raw materials are easily available, the efficiency is high, the consumed time is short, the effect is prominent, and the product quality is stable. After the modified protein is applied to minced fillet and products of minced fillet, the viscoelasticity of minced fillet is obviously enhanced, mince fillet products with higher quality can be prepared, and the needs of more people can be satisfied.

The invention belongs to the technical field of environment protection equipment, relates to a fume desulfurization and denitrification integral device, in particular relates to a solution-method fume desulfurization and denitrification integral device, and is applicable to industrial kiln gas fume desulfurization and denitrification situations. Sodium hypochlorite and sodium chlorite or potassium hypochlorite and potassium chlorite are adopted as a composite absorption solution for fume treatment, the composite absorption solution has a concerted reaction property for oxidizing nitric oxide and absorbing sulfur dioxide, a process method comprises a spraying process, a part of unoxidized acid gases can be reoxidized and absorbed, the fume desulfurization and denitrification efficiency can be improved, the device is simple and convenient in process, simple in structure, convenient to construct and use, low in maintenance cost and long in service life, reasonable utilization of wastes can be achieved, pollution discharge can be effectively reduced, and wide and great social benefits and industrial application values can be made.

The invention belongs to the technical field of environment protection, relates to a fume desulfurization and denitrification integral process method, in particular relates to a solution-method fume desulfurization and denitrification integral process method, and is applicable to industrial kiln gas fume desulfurization and denitrification situations. Sodium hypochlorite and sodium chlorite or potassium hypochlorite and potassium chlorite are adopted as a composite absorption solution for fume treatment, the composite absorption solution has a concerted reaction property for oxidizing nitric oxide and absorbing sulfur dioxide, the process method comprises a spraying process, a part of unoxidized acid gases can be reoxidized and absorbed, the fume desulfurization and denitrification efficiency can be improved, the process is simple and convenient and scientific in principle, reasonable utilization of wastes can be achieved, pollution discharge can be effectively reduced, and wide and great social benefits and industrial application values can be made.

The invention relates to the technical field of ceramic glaze preparation, in particular to a golden yellow ceramic glaze and a preparation method thereof. The method includes the steps: preparing a glaze material from micro-nano silver powder, albite, quartz, soapstone and calcite according to a certain ratio; preparing glaze slurry from the glaze material in a planetary ball milling manner; applying the glaze material onto the surfaces of ceramic biscuits a dipping method, drying the biscuits coated with the glaze, and placing the biscuits into a programmable high-temperature furnace to firethe biscuits under air atmosphere to obtain golden yellow ceramic glaze products. According to the method, concerted reaction, spreading effects, condensation and the like among the micro-nano silverpowder, other components in a glaze formula and oxygen in the air are achieved in high-temperature glaze firing process, a ceramic glaze with a certain jade sense is prepared by a programmable high-temperature furnace under the air atmosphere, glaze surfaces of the prepared ceramic glaze are uniform and golden yellow and good in glossiness, and the ceramic glaze is bright and smooth. Ceramic glaze products without defects such as needle holes and orange peel are achieved, and the preparation method is simple and easy to operate has wide application prospects.

The invention specifically relates to a process for producing lubricant base oil through hydrotreatment of heavy-duty bitumen distillate oil, belonging to the technical field of lubricant base oil. According to the invention, heavy-duty bitumen distillate oil is used as a main raw material, cycle oil is used as an auxiliary raw material, and the raw materials are subjected to hydrotreatment, so the recovery effect of the heavy-duty bitumen distillate oil is improved; in particular, cold low-pressure separated oil and hot low-pressure separated oil in process enter a main stripping tower for stripping, so the cleanliness of an oil product is improved; moreover, two-stage hydrogenation reactions are performed, and different catalysts are adopted for a concerted reaction, so hydrogenation catalysis efficiency is improved; and an acidic water treatment apparatus is employed so as to reduce the discharge amount of acidic water. The process is reasonable in route design and ensures the integral rationality, advancement and long-term safe and stable operation of apparatus design. The process of the invention can produce standard lubricant base oil.

The invention discloses a micro-arc oxidation composite aqueous fire retardant coating and a preparation method thereof. A micro-arc oxidization film layer is formed on the surface of a valve metallicmatrix by using a micro-arc oxidation method by adopting alkaline electrolyte, and then an aqueous fire retardant coating is compounded on the surface of the micro-arc oxidization film layer, whereinthe coating takes ammonium polyphosphate, pentaerythritol and melamine as a flame-retardant system, titanium dioxide as a pigment filler, and water as a solvent. When meeting fire, the flame-retardant system of the aqueous fire retardant coating on the outer layer achieves concerted reaction to form a dense spongy expanded carbonaceous layer, a two-dimensional lamellar structure of graphene oxideundergoes multilayer stacking in the carbonaceous layer to form a dense physically blocked layer so as to isolate transfer of outside heat to the inner layer, while the heat conductivity of the micro-arc oxidization film layer on the inner layer is low, so as to further isolate transfer of the heat to the matrix. The micro-arc oxidation composite aqueous fire retardant coating has excellent fireretardant and heat insulating performances, is applicable to valve metals of aluminum, magnesium, titanium and the like, and is strong in binding force, simple and environment-friendly in processing technology and low in cost.

The invention relates to a degradable express bag material. The degradable express bag material is prepared from components in parts by weight as follows: 70-120 parts of high-density polyethylene, 15-30 parts of starch, 8-15 parts of polyethylene grafted maleic anhydride, 5-10 parts of polylactic acid, 1-5 parts of polyoxyethylene laurate, 1-2 parts of a coupling agent and 0.1-1 part of an auxiliary; high-density polyethylene is taken as a base material, high-density polyethylene, the starch, polyethylene grafted maleic anhydride, polylactic acid, polyoxyethylene laurate and the coupling agent are subjected to a concerted reaction, the degradable express bag material with high flexibility is formed, and an express bag prepared from the degradable express bag material has excellent flexibility and tensile strength. The express bag prepared from the degradable express bag material has good flexibility and tensile strength when in a normal use state, is not prone to damage and has good biodegradation and photodegradation properties when abandoned in soil or an area containing rich microorganisms.

The invention discloses electric heating tube moisture-proof magnesia powder and a proportioning method. The electric heating tube moisture-proof magnesia powder is prepared by fully mixing silicon powder, molten silicon and magnesia powder, wherein the silicon powder accounts for 0.2%-0.5% of the weight of the mixture, and the molten silicon accounts for 0.2%-0.6% of the weight of the mixture. The evenly mixed mixture is filled into a metal external tube of an electric heating tube to manufacture the electric heating tube. The manufactured electric heating tube is subjected to silicon removing process treatment, a gas is exhausted before the complete sealing is carried out, the required baking temperature of the silicon removing process ranges from 400 to 600 DEG C, and the baking time ranges from 1 to 4 hours. The electric heating tube moisture-proof magnesia powder and the proportioning method have the beneficial effects that: since the usage requirements cannot be satisfied by using the traditional technology simply, the optimal proportion of the silicon powder, the molten silicon and the magnesia powder is determined through experiments, the concerted reaction is generated, and the moisture-proof performance can be improved maximally; and the silicon removing process is adopted to ensure that the gas is exhausted before the complete sealing is carried out, thereby improving the insulation performance, prolonging the service life and preventing pipe explosion.

The invention relates to an MBR wastewater treating system with double circular grooves, comprising a water inlet pipe, a water outlet pipe and a water treating area provided with a membrane biological reactor (MBR), wherein the water treating area comprises an outer groove channel and an inner groove channel which are separated by a pool wall; the MBR membrane biological reactor is installed in the inner groove channel; an overflow weir is installed in the pool wall between the inner groove channel and the outer groove channel; the system is internally provided with a flow pushing machine, areflux inlet and an aeration rotating disc; and a central island is installed in the center of the inner groove channel. The system combines the oxidizing groove with the membrane biological reactor,effectively improves the concentration of the sludge in the groove by controlling the reflux ratio and the waterpower stopping time, and simultaneously promotes to generate the concerted reaction of oxidation, nitration, de-nitration, and short de-nitration; the synergistic effect of air backswing and biochemical oxygen supply is used, thereby improving the use rate of the oxygen in the treating system, effectively reducing the energy consumption of the technique, decreasing the requirement of carbon nitrogen ratio and improving the de-nitrification efficiency.

The invention relates to a vulcanizing system of ethylene-propylene diene rubber. Used for vulcanizing 100 parts by weight of the ethylene-propylene diene rubber, the vulcanizing system comprises the following components in parts by weight: 15-30 parts of reactive resin used as a main vulcanizing agent, 1-2 parts of peroxide used as an auxiliary vulcanizing agent and 2-5 parts of maleic amide used as auxiliary crosslinking agent and anti-reducing agent, as well as 0.5-1 part of activator, 1-3 parts of accelerant, 10-15 parts of reinforcing agent, 2-4 parts of anti-aging agent and 10-30 parts of filling agent which are added during vulcanizing process. The vulcanizing system of the ethylene-propylene diene rubber can be used for effectively improving the high-temperature resistance of the rubber by using the reactive resin as the main vulcanizing agent, improving the crosslinking density and physical properties of the rubber by using a small quantity of peroxides as the auxiliary vulcanizing agent, further improving the crosslinking density and high-temperature resistance of the rubber by using the maleic amide as the auxiliary crosslinking agent and anti-reducing agent, and realizing a co-vulcanizing effect by using the activator and the accelerant to result in the concerted reaction of the vulcanizing system.

The invention relates to a method for extracting succinic acid diester from succinic acid fermented liquid. The method comprises the following steps that the filtering working procedure is conducted on the succinic acid fermented liquid for removing thallus and large-particle suspended matter, and filtering liquid is obtained; the filtering liquid is subjected to concentration, and concentrated liquid is obtained; the concentrated liquid and alcohol are sufficiently contacted under the acid effect, the esterification and crystallization precipitation concerted reaction is conducted, and esterification and crystallization mixed liquid is obtained; crystals are removed from the esterification and crystallization mixed liquid, and crystal removing esterification clear liquid is obtained; and then rectification is conducted, and the succinic acid diester is obtained. According to the method for extracting the succinic acid diester from the succinic acid fermented liquid, the refining process of the succinic acid diester is omitted; and meanwhile, salts in the fermented liquid can be effectively removed, producing cost is low, prepared succinic acid diester products are high in purity and can be applied to synthetic light stabilizer, high-grade paint, bactericide, medical intermediates or butanediol generation after hydrogen is added.