52results about How to "Improve the effect of adsorption treatment" patented technology

The invention discloses an efficient adsorbent which is prepared from the following components in percentage by weight: 5-20% of activated carbon, 10-25% of aluminum oxide, 15-20% of silicon dioxide,1-5% of titanium dioxide, 5-10% of ferroferric oxide, 1-3% of manganous-manganic oxide, 10-20% of calcium oxide and 15-30% of diatomite. The efficient adsorbent is wide in application range, and has avery good adsorption treatment effect on heavy metals, ammonia and nitrogen and phosphorus.

The invention discloses a preparation method of a jasmine flower essential oil crystal. The preparation method comprises the following steps: (1) pretreatment: treating fresh picked jasmine flowers by using a bioenzyme solution; (2) adsorption treatment: adsorbing the pretreated jasmine flowers by using resin at normal temperature; (3) elution treatment: eluting with an eluent after resin adsorption saturation, drying, removing water and performing reduced-pressure distillation to obtain jasmine flower essential oil, wherein the eluent is at least one of petroleum ether, normal hexane, ethanol and ethyl acetate; and (4) crystallization treatment: adding an organic solvent into the jasmine flower essential oil, standing and crystallizing at 3 to 5 DEG C and filtering to obtain the jasmine flower essential oil crystal, wherein the organic solvent is at least one of petroleum ether, normal hexane, ethyl acetate and ethanol. The essential oil crystal provided by the crystallization method is pure in color and convenient to transfer and transport; and recrystallization is conducted at low temperature, so that the yield is increased, impurities are reduced, the effectively components of the essential oil are improved, the quality is high, and the essential oil is not liable to deterioration.

The invention discloses a self-expansion type semi-floating ball capable of automatically increasing the adsorption rate for sewage treatment, and belongs to the field of sewage treatment. Through thearrangement of a self-extending rod, the semi-floating ball is in a compressed state to adsorb greasy dirt, and when the semi-floating ball is used, sewage gradually makes contact with the self-extending rod, so that a spiral contracted steel wire in the self-extending rod loses blocking force and gradually extends, the compression amount of a gap in the semi-floating ball is gradually reduced, accordingly, the oil stain adsorbability of the semi-floating ball can be gradually improved, and the sewage treatment efficiency can be improved. Meanwhile, in gradual expansion process of a self-expansion oil absorption layer water guide layer, inward adsorption force can be generated on oil stains nearby the self-expansion oil absorption layer water guide layer, then the speed of the oil stainsentering the self-expansion oil absorption layer water guide layer is increased, and compared with prior art, effect that adsorbability and adsorption speed of the oil stains are gradually increased along with prolonging of use time can be achieved.

The invention provides an adsorbent for printing and dyeing wastewater treatment and a preparation method thereof. Polyether sulfone fibers and polyacrylonitrile fibers are mixed to prepare mixed fibers, the mixed fibers are soaked in an aluminum sulfate-magnesium sulfate mixed aqueous solution, freshly prepared polysilicic acid is added, and the mixture is stirred, reacted and aged to obtain theadsorbent. The polyether sulfone fibers are obtained by mixing polyether sulfone resin and tourmaline powder modified by N-(beta-aminoethyl)-gamma-aminopropyltriethoxysilane, melting and spinning. Thepolyacrylonitrile fibers are obtained by performing polymerization by taking acrylonitrile, itaconic acid and methyl methacrylate as raw materials, then performing tetraethylenepentamine modificationand performing wet spinning. The adsorbent disclosed by the invention is rich in pores and large in specific surface area, has a good adsorption treatment effect on printing and dyeing wastewater with complex components, and has a good decolorization effect.

The invention relates to an in-situ polymerization method modified anion exchange resin as well as a preparation method and application thereof. The modified anion exchange resin is prepared by usingan anion exchange resin with a tertiary amine group [-N(CH3)2] as an organic framework, epoxy chloropropane and dimethylamine as a modifier and ethylenediamine as a cross-linking agent through modification. According to the modified anion exchange resin provided by the invention, the content of amino is increased, weak alkali groups are also increased, the Zeta potential of the modified anion exchange resin is also remarkably increased, and in addition, the isoelectric point of the modified anion exchange resin is 6.62 which is far greater than that of an unmodified resin material, so that theadsorption treatment function on Cr(VI) is greatly improved, and the modified anion exchange resin has the advantages of being stable in quality, excellent in adsorption property, low in cost, simplein solid-liquid separation, large in mechanical strength, high in adsorption capacity, good in regeneration effect, free of secondary pollution, and the like.

The invention discloses a laminated adsorption type gas filtering tower for industrial waste gas treatment, and belongs to the technical field of waste gas treatment. Spraying cavities and adsorptioncavities which are arranged in a staggered manner are arranged in a cylindrical tower body; handling large contact space is large, waste gas is guided into the spraying cavities through gas inlet sleeves and gas inlet holes to be subjected to dust removal spraying treatment of a spraying mechanism. The treated waste gas is guided into the adsorption cavities from the spraying cavities through ventilation layers; the waste gas guided into the adsorption cavities is subjected to multi-layer adsorption treatment through a laminated gas filtering mechanism; the laminated gas filtering mechanism comprises a gas filtering adsorption layer and a bioactive filler layer which are arranged up and down; a plurality of groups of porous adsorption balls on the gas filtering adsorption layer and an active biological filler on the bioactive filler layer are matched to adsorb and decompose some water-insoluble harmful and difficult-to-remove impurities in the waste gas; the treated waste gas is discharged from the top end of the adsorption cavity, and wastewater generated after spraying treatment downwards passes through a filter bed filled at the bottom end part of the cylindrical tower body to be treated.

The invention discloses a device for remediating selenium contaminated soil. The device for remediating selenium contaminated soil comprises a water collection tank, a plurality of water collection gutters, a selenium contamination treatment well, immobilized microorganism balls, a magnetic field generation device, a water pump and water spraying pipes. The water collection tank communicates with the water collection gutters. The selenium contamination treatment well sequentially comprises a gravel layer, an artificial matrix layer and an immobilized microorganism layer from bottom to top. The artificial matrix layer is composed of quartz sand and limestone. The immobilized microorganism balls are placed in the immobilized microorganism layer and made from activated sludge, activated carbon and metallic nickel, and the activated sludge mainly contains microorganisms addicted to selenium. A water outlet pipe is connected into the water collection tank and connected with the gravel layer of the selenium contamination treatment well. A filter screen is arranged between the artificial matrix layer and the immobilized microorganism layer. A water purifying pipe is arranged in the immobilized microorganism layer and connected with the water pump. The water pump is connected with the water spraying pipes. The water spraying pipes are evenly distributed on the surface of soil. By the adoption of the device for remediating selenium contaminated soil, selenium in soil can be removed, and water recycling is achieved.

The invention belongs to the technical field of sewage treatment, and particularly relates to a treatment process of betaine production wastewater. The method comprises the following steps: adding anadsorbent and p-nitrochlorobenzene into to-be-treated wastewater for adsorption treatment, and carrying out solid-liquid separation after the reaction is finished; then adding PAC and PAM for flocculating settling; pumping the treated wastewater into an ion resin column, and carrying out ion adsorption operation; and sending the treated wastewater into an MVR evaporator, and then carrying out solid-liquid separation. The betaine production wastewater containing trimethylamine is treated by the method, the content of trimethylamine in the treated wastewater is less than 10ppm, and the effectivetreatment rate reaches 97.7% or above. The adsorbent adsorption, flocculation, ion resin adsorption and evaporation are combined, and the method is different from a traditional treatment process in the field and is better in treatment effect.

The invention relates to a molecular sieve adsorption apparatus suitable for high humidity organic waste gas. The apparatus comprises a sealed box, wherein two opposite sides of the sealed box are respectively provided with a waste gas inlet and a clean gas outlet; a pretreatment filter, which is fixed in the sealed box and comprises plate-frames, a sieve plate, which is arranged between plate frames through clamps, and a filling medium; a first molecular sieve rotating wheel for removing gas-state water in waste gas; a second molecular sieve rotating wheel for removing organic substances in waste gas; and a power module, which comprises a rotation shaft connecting the axes of the first molecular sieve rotating wheel and the second molecular sieve rotating wheel, a controller, and a frequency changer. The controller and the frequency changer are arranged on the external wall of the sealed box. The controller adjusts the rotation speeds of the first molecular sieve rotating wheel and the second molecular sieve rotating wheel through the frequency changer. The molecular sieve adsorption apparatus has the advantages of high adsorption efficiency and good processing effect.

The invention relates to a method for recovering rhenium from molybdenum smelting waste acid by using secondary amine impregnated resin, and belongs to the field of hydrometallurgy and comprehensive recovery of secondary resources. The method comprises the following steps that (1) filtered molybdenum smelting waste acid flows through a secondary amine impregnated resin column, the secondary amine impregnated resin column absorbs the filtered molybdenum smelting waste acid to be saturated, and a loaded impregnated resin column is obtained; (2) leaching is performed with water, then desorbing is performed with ammonia water, and a rhenium-containing desorption solution is obtained; and (3) the rhenium-containing desorption solution is evaporated and crystallized to obtain ammonium perrhenate. The secondary amine impregnated resin is prepared from double-long-chain alkyl secondary amine (the alkyl chain length is C8 to C13) and Amberlite XAD4, Amberlite XAD7HP or Amberlite XAD16, and the secondary amine impregnated resin is large in saturated adsorption capacity of rhenium, high in rhenium enrichment proportion, good in product stability and good in selective adsorption performance of rhenium. The rhenium recovery technology is simple, environmentally friendly, easy and convenient to operate and suitable for large-scale production and application.

The invention provides an adsorbent for industrial sewage treatment and a preparation method thereof. The method comprises the steps: firstly, modifying a composite halloysite nanotube through N-(beta-aminoethyl)-gamma-aminopropyltriethoxysilane, and thus obtaining a modified halloysite nanotube; modifying edible mushroom dregs by using epoxy chloropropane to obtain epoxidized mushroom dregs; then mixing the modified halloysite nanotube with epoxidized mushroom dregs for reaction, and grafting by using starch to obtain an intermediate product; and finally, mixing the intermediate product with vinylidene fluoride and 2-acrylamide-2-methylpropanesulfonic acid, and carrying out a polymerization reaction to obtain the adsorbent for industrial sewage treatment, wherein the adsorbent for industrial sewage treatment has an excellent adsorption treatment effect on industrial sewage, high adsorption capacity, good reproducibility and recyclability, and the industrial sewage treatment cost is greatly reduced.

The invention discloses a continuous textile waste gas treatment device. The invention belongs to the technical field of waste gas treatment. The continuous textile waste gas treatment device comprises a mounting plate, an annular treatment pipe, an adsorption ball mechanism and an auxiliary replacement mechanism, four mounting holes distributed in a rectangular array are formed in the mounting plate, a hanging rod fixedly connected to one side of the front face of the mounting plate is arranged below the annular treatment pipe, a rotating shaft is rotatably connected to the middle of the mounting plate through a bearing, a connecting ring is fixedly connected to the outer wall of the rotating shaft, and a plurality of electromagnets are fixedly connected to the outer wall of the connecting ring. According to the waste gas treatment device, an adsorption ball mechanism can be arranged, harmful substances and impurities such as batting and broken lines in waste gas can be effectively adsorbed, the device is not prone to being blocked, the maintenance cost and frequency are reduced, in the maintenance process, the adsorption ball mechanism can be replaced and maintained without stopping waste gas treatment, and then the waste gas treatment efficiency is improved.

A low energy-consumption purification device comprises a humidifier (22) arranged inside an unpurified airflow passage (20) to spray water mist all over the unpurified airflow for increasing humidity thereof; a condenser (21) arranged inside the unpurified airflow passage (20) and located at a downstream end of the humidifier (22) to condense the unpurified airflow into condensate contained substances requiring purification; an air temperature controller (25) arranged inside the unpurified airflow passage (20) and located at an upstream end of the humidifier (22) for warming or cooling the unpurified airflow in the air temperature controller (25); and a first heat exchanger (23) connected to the condenser (21) to achieve a desired condensing temperature. The present invention is able to enhance a performance of an adsorption treatment for unpurified substances and provide the effect of expanding the rage of the treatment temperature.

The invention discloses a composite adsorption treatment material for wastewater containing nitrobenzene, which comprises the following raw materials in parts by mass: 15-30 parts of hydroxypropyl cellulose graft copolymer, 5-8 parts of oxyferric chloride, 4~10 parts of cationic etherified starch, 2~8 parts of activated carbon fiber, 5~10 parts of activated alumina, 2~6 parts of polyepichlorohydrin, 1~4 parts of porous hydroxyapatite powder, hydrophobic modified wood 5~12 parts of cellulose fiber, 6~10 parts of polyhydroxyaluminum silicon chloride, 10~18 parts of nonionic polyacrylamide and 12~20 parts of adsorbent NSUL-1. A composite adsorption treatment material for the treatment of nitrobenzene-containing wastewater provided by the present invention produces a synergistic adsorption treatment effect through reasonable raw material compounding, and has good performance on the main pollutant in nitrobenzene-containing wastewater-nitrobenzene The adsorption treatment effect, and can effectively reduce the chroma value and COD of sewage, with excellent comprehensive water treatment effect.

The invention relates to an advanced treatment process of natural ester insulating oil, a super-hydrophilic adsorbent and a preparation method and application of the super-hydrophilic adsorbent, and particularly relates to a preparation process of a high-stability silicon oxide adsorbent and an application mode of the super-hydrophilic adsorbent. The invention also discloses a process for improving the pressure resistance and dielectric loss of the natural ester insulating oil and reducing the indexes such as acid value, pour point and kinematic viscosity. According to the invention, various types of commercially available natural ester insulating oil are subjected to deep treatment, so that residual polar substances and bound water in the natural ester insulating oil are effectively reduced, and the initial indexes and stability of the natural ester insulating oil are improved. The super-hydrophilic adsorbent has strong stability, and does not introduce new impurities into the oil while removing various impurities in the natural ester insulating oil, thereby avoiding the change of the properties of the oil. According to the process, various initial properties and operation stability of the natural ester insulating oil are fully improved, meanwhile, the range of treatment objects is wide, the process stability is high, and the process shows great application potential.

The invention relates to an integrated treatment method for viscous oil wastewater, and belongs to the technical field of water treatment. The method mainly utilizes demulsification, sedimentation hardness-removal, flocculation, oxidation, ultrafiltration, adsorption and reverse osmosis treatments to achieve the comprehensive and stable running effect. The method has the advantages of cooperationof all units, stability in running, and good water discharge effect.

The invention relates to a method for preparing cement from fly ash, and adopts a cement manufacturing device which comprises a bottom rack, a drying mechanism, a guide groove, a screening mechanism and a collecting frame, and the cement manufacturing device can solve the following problems in the cement manufacturing process: a, because the yield of fly ash is relatively large and an indoor site is far insufficient for stacking of fly ash, the fly ash is mostly accumulated outdoors after being produced, the phenomena of moisture, caking and the like possibly exist in the fly ash due to weather and the like, a large number of sundries exist on the fly ash, and if the fly ash is not treated before cement production, the quality of cement may be affected; and b, the fly ash contains a large amount of oxides of metals such as iron and the like, if the iron oxides are not removed from the fly ash in time, the iron element content in the cement is relatively high, the proportion of cement raw material components is influenced, the model of the cement is unqualified, and the quality of the cement is influenced.

The invention discloses a preparation method of a composite flocculant, which comprises the following steps: carrying out homogeneous compounding on polyferric sulfate and an organic flocculant to obtain the composite flocculant, wherein the polymeric ferric sulfate is prepared from ferrous sulfate through hydrothermal synthesis, and the organic flocculant is a polymer formed by polymerizing acrylamide, dimethyl diallyl ammonium chloride and octadecyl methacrylate. The composite flocculant prepared according to the preparation method of the composite flocculant provided by the invention has good turbidity reduction and oil removal effects in pretreatment of high-turbidity oil-containing mine water, destabilization and coagulation of suspended particles and emulsified oil drops in the high-turbidity oil-containing mine water can be realized, and recycling of the high-turbidity mine water is promoted.

The invention discloses an industrial waste gas treatment device which comprises a working box, a gas inlet pipe and a gas outlet pipe, the left side of the working box is fixedly connected with the right end of the gas inlet pipe, and the right side of the working box is fixedly connected with the left end of the gas outlet pipe. The invention relates to the technical field of waste gas treatment devices. According to the industrial waste gas treatment device, a fixed block is fixedly connected to the left side of the inner wall of the working box, a mounting block is rotatably connected into the fixed block, a fixed box is fixedly connected to the left side of the top of the working box, a servo motor is fixedly connected to the left side of the bottom of the inner wall of the fixed box, a rotating rod is fixedly connected with one end of the output shaft of the servo motor through a coupler, one end of the rotating rod is rotatably connected with the right side of the inner wall of the fixed box, three activated carbon adsorption nets with different pore diameters are arranged in the working box, particles in industrial waste gas can be effectively adsorbed and filtered, and the filtering treatment effect of the waste gas treatment device on the particles in the waste gas can be improved in a multi-stage filtering mode.

The invention discloses a chemical experiment waste liquid treatment device for teaching, which belongs to the field of chemical experiments, and is characterized in that a throwing ball is thrown into a treatment tank to cover the liquid level, the volatility of organic waste liquid is effectively reduced by utilizing the covering effect of the throwing ball, and the liquid level is cooled by utilizing the heat absorption phenomenon of ammonium nitrate dissolved in water. In addition, the wrapping shell wrapping the organic matter adsorption resin balls is magnetically adsorbed to the lower end of the throwing ball, and the traction piece is deformed and bent through temperature reduction, so that the wrapping shell is separated from adsorption of the traction piece, and the organic matter adsorption resin balls are released; the adsorption treatment effect of organic matters in waste liquid is effectively improved ; and in addition, a covering umbrella is additionally arranged at the upper end of the floating rod to improve the covering effect, the use amount of thrown balls can be reduced, the cost can be reduced, the liquid level can be effectively subjected to heat preservation, and low-temperature rapid dissipation can be prevented.

The invention discloses a complete-treatment process for waste gas generated during casting. The process comprises the following steps of S1, positive pressure conveying, namely, conveying the waste gas generated during casting to the rear end in a positive pressure purging manner; S3, negative pressure collection, namely, forming negative pressure in a preset area of a sealed casting space, capturing the waste gas conveyed through positive pressure in a negative pressure area and introducing the waste gas into a casting space with the sealed rear end to be stored; S4, spraying and absorbing; and S5, deodorizing. According to the treatment process, a mode of combining positive pressure conveying and negative pressure collection is adopted, the waste gas is conveyed to the negative pressure area at the rear end by positive pressure purging gas and is collected and stored, and an expected waste gas collection effect can be achieved only by adopting a small-power positive pressure fan and a small-power negative pressure fan; compared with the prior art, the waste gas collection efficiency is improved, and the power consumption of waste gas collection is greatly reduced; and in addition, the waste gas is subjected to spraying absorption and deodorization treatment, so that the environment-friendly requirement can be met, the problems of waste gas collection and treatment in the foundry industry are solved, and the obstacles of industry development are cleared away.