104results about How to "Efficient Adsorption Removal" patented technology

A carbon-based catalyst for flue gas desulfurization is brought into contact with a flue gas containing at least SO2 gas, oxygen and water vapor so that the SO2 gas can react with the oxygen and the water vapor to form sulfuric acid which is to be recovered. On a surface of the carbon-based catalyst, iodine, bromine or a compound thereof is added, ion exchanged or supported and a water-repellent treatment is applied. The carbon-based catalyst can also be used as a mercury adsorbent for flue gas treatment for adsorbing and removing metallic mercury from a flue gas containing metallic mercury, SO2 gas, oxygen and water vapor.

The invention discloses a hydrometallurgy industry raffinate waste water COD removal method. According to the method, lime is added into waste water, and is combined with sulfate radical, phosphate radical, carbonate radical, fluorinions, metal ions and the like to generate defecation mud, the defecation mud is taken as an adsorber to remove dispersed oil in the waste water, filter liquor generated after filtering is subjected to pH regulation, then fenton oxidation is performed to degrade macromolecular organic compounds, further pH regulation is performed, then low molecular weight organic matters are deeply degraded by photo-catalytic oxidation, finally solid-liquid separation is performed to obtain a solid catalyst and waste water with the COD content smaller than 100mg / L, and the solid catalyst is returned to photo-catalytic oxidation reaction for cyclic utilization. The method is good in COD removal effect, free of adsorber regeneration and low in operation cost, and has industry application prospect.

An oil filter paper, comprising a resin with a weight percentage greater than 0 and less than or equal to 25%, an inorganic fiber with a weight percentage greater than 0 and less than or equal to 20%, and a wood pulp fiber with a weight percentage greater than or equal to 55% and less than 100%, and the inorganic fiber is glass A mixture of fiber or glass fiber and ceramic fiber; by adding a certain amount of inorganic fiber composed of glass fiber and ceramic fiber to the wood pulp fiber, this inorganic fiber can adjust the filtration accuracy and air permeability of the oil filter paper, and reduce the pore size of the filter paper , At the same time, it also increases the water absorption and strength of the oil filter paper, so that the oil filter paper can effectively absorb and remove impurities in the oil, and improve the quality and utilization of oil products.

The invention discloses a water treatment method for adsorbing and removing Tl<+> and / or Cd2<+> by producing nanometer manganese dioxide in situ, relating to a water treatment method of thallium and / or cadmium-containing source water and solving the problems of complex process, high running cost and low removing efficiency of thallium and / or cadmium existing in the conventional water treatment technology specific to thallium and / or cadmium-polluted source water. The method comprises the following steps of: adding permanganate and sodium thiosulfate into Tl<+> and / or Cd2<+>-containing water; stirring to obtain a mixed solution; adding a coagulant; and performing conventional water treatment. Nanometer manganese dioxide which has a large specific surface area and high electronegativity and is easy for precipitation separation is produced in situ by making permanganate react with sodium thiosulfate, so that low-concentration Tl<+> and / or Cd2<+> in water can be removed effectively and specifications in the national Sanitary Standard for Drinking Water are met. The method has the advantages of high removing efficiency, simple process, flexibility and convenience for operation, no change of the original treatment process of a water plant, low running cost and the like, and can be applied to emergency treatment of a water pollution event.

The invention provides a method combining an oxidizing composite reagent and activated carbon to remove arsenic in water. The oxidizing composite reagent is added into the water and stirred, and then the activated carbon is utilized to adsorb the arsenic. The oxidizing composite reagent is formed by compositing potassium ferrate, chlorine dioxide, sodium peroxide, potassium persulfate, potassium monopersulfate, ferrous sulfate, ferric sulfate and hydroxylamine hydrochloride, or is formed by compositing potassium peroxide, sodium peroxide, sodium monopersulfate, iron chloride and hydroxylaminehydrochloride, or is formed by compositing calcium peroxide, sodium hypochlorite, calcium monopersulfate, calcium persulfate, cerium chloride, ferric chloride, cerous sulfate and humus, or is formed by compositing cobalt chloride, ammonium monopersulfate, ammonium persulfate, cerous sulfate, sodium peroxide and hydroxylamine hydrochloride. The method can not only remove the arsenic in drinking water, underground water and surface water rapidly, efficiently, conveniently and safely, but also effectively reduce concentration of the arsenic in sewage containing arsenic and effluent of sewage secondary sedimentation tanks, and simultaneously can have good recovery effect on lakes and inland seawater polluted by the arsenic.

The present invention is directed to an enterotoxin adsorbent comprising a compound having a log P (P denotes a partition coefficient in an octanol-water system) value of not less than 2.50 as immobilized on a water-insoluble carrier.

A carbon-based catalyst for flue gas desulfurization is brought into contact with a flue gas containing at least SO2 gas, oxygen and water vapor so that the SO2 gas can react with the oxygen and the water vapor to form sulfuric acid which is to be recovered. On a surface of the carbon-based catalyst, iodine, bromine or a compound thereof is added, ion exchanged or supported and a water-repellent treatment is applied. The carbon-based catalyst can also be used as a mercury adsorbent for flue gas treatment for adsorbing and removing metallic mercury from a flue gas containing metallic mercury, SO2 gas, oxygen and water vapor.

The invention provides asphalt concrete as well as a preparation method and application thereof. The asphalt concrete consists of the following materials in parts by weight: 83-90 parts of aggregates, 4-6 parts of mineral powder, 1-2 parts of magnetite, 1-2 parts of pyrite, 1-2 parts of rectorite, 3-5 parts of asphalt, based on 100% in total. According to the asphalt concrete, produced electrons have a strong electro-adsorption function on PM 2.5 particles with positive charge in air based on thermo-electric effect of the pyrite and the magnetite under road surface temperature difference action; by combining physical absorption of rectorite, the asphalt concrete has strong purifying effect for PM 2.5 particles. The asphalt concrete is low in mineral cost, simple in preparation process, and convenient to construct, can effectively reduce content of PM 2.5 in the air and can improve air quality.

The present invention provides an adsorbent for efficiently adsorbing and removing cytokine in liquid and a method for removing cytokine in liquid by the adsorbent. Also, the present invention provides an adsorber for removing cytokine in liquid. Specifically, an adsorbent for cytokine is obtained by immobilizing a compound having a log P value of at least 2.50 (P is the partition coefficient in an octanol-water system) on a water-insoluble carrier. By contacting a liquid containing cytokine with the adsorbent for cytokine, the cytokine in the liquid can be effectively adsorbed and removed. Furthermore, cytokine can be efficiently adsorbed and removed by an adsorber comprising a container having an inlet and an outlet for liquid and a means for preventing the adsorbent from flowing out of the container, which is filled with the adsorbent.

The invention discloses a preparation method for organic nano-silicon oxide adsorption material, which consists of the following steps: 1) a cation surface active agent is dissolved into water to prepare surface active agent solution, then the nano-silicon oxide is poured into the surface active agent solution; the surface active agent solution comprises the cation surface active agent, wherein, the mass percent of the cation surface active agent is 1-20 percent, the mass ratio between the nano-silicon oxide and the surface active agent solution is 1:5-1:100; 2) the mixing solution is stirred at a constant temperature of 20-80 DEG C for 2-24 hours and then is filtrated and washed by distilled water twice; 3) filtrated solid is dried at the temperature of 50-90 DEG C and is activated at the temperature of 105 DEG C for 30 minutes to 5 hours; 4) dried active product is grinded and passes 100 mesh sieve to prepare organic modification nano-silicon oxide adsorption material. The organic modification nano-silicon oxide adsorption material prepared by the invention increases hydrophobic nature, the content of organic carbon and settlement property in water, greatly improves the adsorption ability of organic contamination in water and can be popularized and used in organic wastewater treatment and waste landfill anti-seepage additive materials, etc.

The invention discloses a method for removing COD (chemical oxygen demand) from copper / molybdenum extraction raffinate mixed wastewater, which mainly comprises the following steps: adding lime powder or lime milk into wastewater so as to be combined with sulfate in the wastewater to generate a calcium sulfate precipitate, adsorbing and removing disperse oil by using the calcium sulfate as an adsorbent, filtering, deeply degrading COD in the filtrate in the photocatalytic oxidation reaction process, and carrying out solid-liquid separation to obtain the solid catalyst and the wastewater with the COD of less than 100 mg / L, wherein the solid catalyst can be returned to the photocatalytic oxidation reaction for cyclic utilization. The method has the advantages of simple technique, low operating cost and no need of subsequent adsorbent regeneration, and has favorable market prospects.

The invention relates to a preparation method and application of a biological carbon-based iron carrying composite material. The method mainly comprises the following steps of culturing pokeberry, solanum nigrum or polygonum hydropiper plants with a plant nutrient solution for 10-20 days, then continuing application of the iron-containing nutrient solution for 30-90 days, and harvesting the plants; drying the plants, and then carbonizing the plants by means of a hydrothermal method to prepare the biological carbon-based iron carrying composite material. The prepared biological carbon-based iron carrying composite material is simple in process and low in cost and can be used for adsorbing and removing heavy metals in water, and high-efficiency magnetic recovery is achieved.

The invention discloses a ceramic filter element added with carbon nano tubes. The ceramic filter element added with the carbon nano tubes is characterized by being prepared from the following raw materials in parts by weight: 15-17 parts of activated carbon, 10-13 parts of diatomite, 6-9 parts of cordierite, 2-3 parts of carbon nano tube, 3-5 parts of smashed cotton exocarp, 6-8 parts of smashed coconut shell, 7-9 parts of mica powder, 5-8 parts of clay, 8-10 parts of aluminium powder, 4-6 parts of zeolite, 1-2 parts of chitosan, 5-7 parts of modified coconut shell activated carbon and a defined amount of water. The ceramic filter element added with the carbon nano tubes is added with chitosan, so that the ceramic filter element added with the carbon nano tubes has good clarification and flocculation effects; the carbon nano tubes are added, so that the mechanical properties of the ceramic filter element can be improved; a mesoporous structure is formed, so that heavy metal ions in water can be effectively adsorbed and removed; modified coconut shell activated carbon is added, so that interspace is developed, the adsorption property is good, the strength is high, and the ceramic filter element added with the carbon nano tubes can be regenerated easily and is economical and durable; the purification efficiency is high, the service life is long, and the corrosion resistance is high, so that the ceramic filter element added with the carbon nano tubes can be used for air adsorption filtration or inspiration filtration by virtue of a car filter cleaner.

The invention relates to a treatment method for water of a molybdenum-containing water source and aims to solve the problem of an existing treatment method for the water of the molybdenum-containing water source that the cost is high or the treatment effect is poor. The treatment method comprises the following steps: adding a ferrous salt and an oxidant into the molybdenum-containing water or adding a hexavalent iron salt or a reducing agent; or directly adding a ferric salt to obtain medicine-added water; then controlling the pH (Potential of Hydrogen) value of a system in a coagulating tank and carrying out coagulation treatment; and finally, precipitating and filtering to finish the treatment of the water of the molybdenum-containing water source. According to the treatment method, the added iron salts are conventional reagents and the cost is low; nascent state nano iron oxide (hydroxide) generated by oxidization, reduction methods and the like in situ has the characteristics of small grain diameter, large specific surface area and strong adsorption capability, and has positive charges on the surface; the nascent state nano iron oxide (hydroxide) has excellent adsorption and removing effects on molybdenum existing in a form of an oxygen-containing acid radical with negative charges.

The process of adsorbing nitrobenzene from raw water with powdered active carbon can eliminate nitrobenzene effectively. The process includes the following steps: 1. throwing wooden powdered active carbon in 10-80 mg / l to the water catchment; 2. mixing wooden powdered active carbon with water and flowing in the pipeline for 2-3 hr; and 3. treating the water with mixed wooden powdered active carbon in the reaction tank, settling basin, sand filter and disinfector to obtain drinking water with nitrobenzene content lower than 0.002-0.014 mg / l. The present invention has low investment, low cost, high safety and other advantages.

The invention provides a preparation method and application of magnetic activated carbon, and the preparation method comprises the following steps: step 1, washing, drying and cutting cotton textile waste into pieces to obtain a waste sample; 2, dissolving ferrous chloride in ethyl alcohol to obtain an ethyl alcohol-ferrous chloride solution; 3, placing the waste sample in an ethanol-ferrous chloride solution for sealed impregnation, then moving out the waste sample, and drying the waste sample to obtain an impregnated sample; 4, placing the impregnated sample in nitrogen for pyrolysis, cooling the pyrolyzed product to room temperature, and taking out the pyrolyzed product to obtain a pyrolysis sample; and 5, placing the pyrolysis sample in a hydrochloric acid solution, heating and boilingthe solution, moving out the pyrolysis sample, cleaning the pyrolysis sample, and drying the pyrolysis sample to obtain the magnetic activated carbon. The magnetic activated carbon is used for adsorbing and removing hexavalent chromium in an aqueous solution. According to the preparation method disclosed by the invention, the utilization efficiency of the activating agent is improved, and meanwhile, the magnetic activated carbon with stable magnetism can be prepared through one-step pyrolysis, synchronous carbonization and activation and magnetization, so that the preparation cost is reduced,and the preparation process is simplified.

The invention relates to the technical field of functional porous materials, and provides a cyclodextrin porous adsorption material as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out a dehydration condensation reaction on cyclodextrin and acrylic anhydride, and then carrying out a cross-linking polymerization reaction with an olefin micromolecular monomer, so as to prepare the cyclodextrin porous adsorption material. The preparation method disclosed by the invention is simple in steps and relatively mild in reaction conditions; the obtained cyclodextrin porous adsorption material has a hierarchical pore structure, a relatively high specific surface area and various active binding sites, and can be used for efficiently removing pollutants in wastewater; and the cyclodextrin porous adsorption material can be simply recycled, and the cyclodextrin porous adsorption material can still keep a relatively high adsorption effect after 20 times of cyclic adsorption.

The invention discloses a resin-based hybrid material based on zirconium-based metal organic framework modification and application thereof. According to the resin-based hybrid material, polymer resinserves as a matrix, zirconium-based metal organic framework UiO-66 series materials are immobilized on the matrix, the UiO-66 series materials are nanoparticles and are in a regular octahedron form,the particle size ranges from 20 nm to 100 nm, and the immobilization amount ranges from 2% to 16%. Macromolecular resin is used as a carrier, and zirconium-based metal organic framework series nanoparticles are immobilized in reticulated ducts of the carrier to form the hybrid material. The hybrid material effectively exerts the high adsorption performance and excellent adsorption selectivity ofthe zirconium-based metal organic framework to the fluorine ions, has excellent hydromechanical properties of a large-particle resin-based exchange agent and a strong enrichment effect on the fluorineions, and can greatly enhance the deep removal of the fluorine ions.

An object of the present invention is to provide a method and a device, which can suppress poisoning due to CO and efficiently remove a low concentration of amines contained in a gas discharged from a CO2 recovery device that uses various absorbing liquids of CO2 even at low temperature. A discharged gas treatment method for removing amines as absorbent contained in a gas discharged from a CO2 removal device, in which the CO2 removal device has used the amines, the method comprising alternatively performing the step of passing the discharged gas through a catalyst-packed bed which is packed with a catalyst composed of titanium oxide and an oxide of vanadium (V) or titanium oxide, an oxide of vanadium and an oxide of molybdenum (Mo) or tungsten (W), to adsorb and remove the amines contained in the discharged gas; and the step of passing heated air through the catalyst-packed bed wherein the amines are adsorbed thereon to heat the catalyst, and at the same time performing elimination and oxidative decomposition of the adsorbed amines.

The invention relates to a solid adsorption settling agent. The solid adsorption settling agent is prepared from, by weight, 15-25 parts of polymerization dimethyl diallyl ammonium chloride homopolymer, 20-40 parts of volcanic, 30-50 parts of calcium aluminate powder, 5-15 parts of activated carbon and 5-15 parts of bentonite. The obtained solid adsorption settling agent can efficiently adsorb and remove soluble inorganic and organic pollutants and suspended particles in waste water, a good settling clarification effect is achieved, COD is effectively reduced, and pollution is reduced. The solid adsorption settling agent obtained through the preparation method can be directly put for use, dissolution is not needed, and the settling agent is easy to disperse in waste water, can take effect fast and is suitable for being used under a high and cold environment.

The invention discloses a raw wool suet removal device for wool. The device comprises a machine body; a cold suction space is formed in the machine body; a cold suction mechanism used for adsorbing and removing suet in raw wool is arranged in the cold suction space; a collecting space with a rightward opening is formed in the right side of a scrubbing space; and a collecting mechanism used for collecting the suet in the raw wool is arranged in the collecting space. Through the design of the cold suction mechanism, the suet separated out of the wool can be effectively adsorbed and removed, and meanwhile, broken and small suet colloid can be completely condensed and adsorbed, so that the removal rate of the suet in the wool is greatly improved, and the cleanliness of wool cleaning is guaranteed; the wool can be effectively scrubbed through the design of the scrubbing mechanism; alkali liquor is reasonably added, so that the wool is protected from being damaged; and meanwhile, good emulsifying capacity and the capacity of separating out the suet are provided.

The invention provides an efficient air filtering and scavenging material. The efficient air filtering and scavenging material is formed by the following raw materials according to the parts by weight: 30-40 parts of activated carbon, 10-25 parts of silicon dioxide nano-scale micro-powder, 10-15 parts of polyhydric alcohol, 5-15 parts of kieselguhr, 5-10 parts of a porous adsorbing material, 2-5 parts of tourmaline powder, 1-4 parts of nano zinc oxide, 2-4 parts of nano sodium zirconium phosphate, 1-3 parts of carbon nano tubes, 1-5 parts of nano titanium dioxide, 1-3 parts of dioctyl adipate,1-4 parts of bamboo coal, and 1-2 parts of a resin. The air filtering and scavenging material is capable of effectively adsorbing and removing suspension particles of PM0.3-PM10 in the air, and has the characteristics of high filtering efficiency, high clogging capacity and low airflow resistance. The material can be used for replacing the medium-efficient filtration and high-efficient filtrationin the existing air filtration, and reducing the structural cost and the energy consumption of a related ventilation system under the precondition of achieving the same filtering effect.

The invention relates to a mesoporous manganese oxide adsorbent and a method using plasma treatment to prepare the adsorbent and belongs to the technical field of water treatment. The preparation method includes the steps of firstly, synthesizing a mesoporous manganese oxide material; secondly, using plasma to treat the mesoporous manganese oxide material to obtain the plasma-treated mesoporous manganese oxide material; thirdly, using the plasma-treated mesoporous manganese oxide material as the adsorbent to adsorb lead ions in water. The plasma-treated mesoporous manganese oxide material usedfor adsorbing and removing the lead ions in the water is simple to operate and evident in removing effect, the adsorbent is renewable and recyclable, and cost for treating lead pollution in the watercan be lowered.

A method for preparing organic hydrotalcite includes the steps of firstly, filtering washing wastewater to remove solid impurities so as to obtain washing wastewater without solid impurities; and secondly, adding hydrotalcite into the washing wastewater, mixing, performing precipitation separation, drying, and grinding to obtain anionic surfactant modified hydrotalcite. Due to the fact that surfactant used during washing is most anionic surfactant, the anionic surfactant in the washing wastewater is used as modifier to synthesize the organic hydrotalcite, the organic hydrotalcite is prepared while the anionic surfactant in the washing wastewater can be absorbed effectively, and waste recycling is achieved. The prepared organic hydrotalcite is low in price, wastewater treating effect is evident, wastes are treated with wastes, and high economical and practical values are achieved.

The invention belongs to the technical field of permeable pavement, and specifically discloses a permeable paving system for removing urban non-point source pollution. The paving system comprises thefollowing structures from top to down: a surface layer, a leveling layer, a decontamination layer, a base layer and a cushion layer, wherein the surface layer is used for rapidly permeating and draining rainwater or accumulated water on a road surface, and is capable of temporarily storing the rainwater which is not discharged by a permeable layer; the leveling layer is a structural layer used forbuffering and permeating and for leveling, reinforcing and strengthening a system structure on the decontamination layer, and has an adsorption effect on pollutants such as nitrogen, phosphorus, heavy metals and the like; the decontamination layer is used for adsorbing pollutants such as heavy metals, nitrogen, phosphorus and the like, and is capable of inhibiting NH3-N nitrification and improving the removal efficiency of N; the base layer is used for adsorbing and removing the pollutants in an infiltration runoff and is capable of permeating and storing water; and the cushion layer is usedfor preventing water or groundwater that penetrates into a roadbed from rising, permeating and storing due to capillary phenomenon. By adopting the paving system provided by the invention, particulatematter in the infiltration runoff can be filtered and purified, the pollutants such as nitrogen, phosphorus, heavy metals and the like in the infiltration runoff can be effectively adsorbed, and thepollutants can be avoided from entering the underground and causing pollution.

The invention relates to edible fungus residue biochar. The biochar is prepared from, by weight, 45-50 parts of edible fungus residues, 2-3 parts of acetic acid, 2-3 parts of an inoculating microorganism agent, 1-2 parts of urea, 8-10 parts of sodium bicarbonate, 5-8 parts of sodium hydroxide and 1-2 parts of calcium chloride. The biochar has the advantages that the porous diameter distribution isuniform, the absorbing performance is good, the quality stability is high, and the biochar can be recycled and is worthy of marketing popularization and use.

The invention discloses an environment-friendly treatment device for industrial waste rubber. The device comprises a microwave cracking system (1), a closed oxygen-isolating feed transmission system (2), a waste gas purification treatment system (3), a hot air circulation system (4) and a discharge system (5). The closed oxygen-isolating feed transmission system (2), the waste gas purification treatment system (3), the hot air circulation system (4) and the discharge system (5) are all connected to the microwave cracking system (1). The environment-friendly treatment device provided by the invention has reasonable structural design and strong environmental friendliness, and adopts the microwave heating cracking and environment-friendly waste gas purification treatment system to perform high temperature cracking treatment on waste tires, and can effectively adsorb and remove pollutants such as soot, aliphatic hydrocarbon, aromatic hydrocarbon, dioxin, carbon monoxide and sulfur-containing compounds, the practicability is high.

The invention discloses an air-purifying aerated brick, which is prepared from the following materials in parts by weight: 30 to 40 parts of diatomite, 5 to 10 parts of coffee carbon, 3 to 5 parts of titanium dioxide, 20 to 30 parts of cement, 3 to 5 parts of organic silicon resin YR3370, 2 to 4 parts of phenolic resin, 0.3 to 0.5 parts of silane coupling agent KH-570, 0.3 to 0.5 parts of sodium alginate, 0.1 to 0.2 parts of aluminium powder, 1 to 2 parts of konjac glucomannan, 1 to 2 parts of sodium tripolyphosphate and 5 to 10 parts of modified silica sol. The aerated brick disclosed by the invention not only has good waterproofness, seepage resistance, cracking resistance and pressure resistance and high durability, but also can efficiently adsorb and remove harmful substances in the air, and the aerated brick has the effects of purifying the air and improving the environment, and has high practicability.