57results about How to "Improve removal ability" patented technology

A manufacture method of a special activated carbon for removing mercury, including the following steps: According to the weight percentage, a blind coal of 70%-80%, a soft coat of 15%-25%, an MgO of 2%-5% andor an MgSO4 of 3%-10% are mixed to produce a powder. According to the weight percentage, the produced powder material of 60%-65%, an asphalt of 5%-10%, a coal tar of 25%-30% and a water of 3%-5% are mixed evenly and then pressed to a strip shape by a press. After sunning, carbonization, activation, breaking or screen separation, the finished product on the screen is obtained. After dipped in a concentrated sulfuric acid of more than 90 percent for 8-10 hours, the finished product is washed by vitriol and then reclaimed. The pH is adjusted to be between 4 and 8 by an alkali. After drying and screen separation, the process is finished. The special activated carbon for removing the mercury produced according to the present invention is mainly used to remove the mercury and other metal pollution in the smoke, soil and water efficiently and reliable, cleaning the environment and protecting the health. The present invention has the strong removing capability, low cost and good effect.

The invention relates to a lanthanum-iron modified zeolite phosphorus removal adsorbent and a preparation method and application thereof. Natural zeolite is modified by lanthanum salt and iron salt. At first, a mixed solution of lanthanum and iron is prepared, and then zeolite is added, and that mixture is uniformly mixed, the pH of the solution is adjusted to be alkaline, and a precipitate of lanthanum and iron is formed, so that the precipitate is fully loaded on the surface of the zeolite. Aging, filtering, washing, drying and roasting are performed to obtain the adsorbent. The invention modifies the cheap natural zeolite, improves the phosphorus removal effect of the natural zeolite to a certain extent, and makes up for the defects of the natural zeolite in phosphorus removal.

The invention discloses a method for efficient remediation of mercury-contaminated soil by leaching and a leaching agent. The leaching agent is composed of an oxidizing agent, a leaching solution I and a leaching solution II, wherein the oxidizing agent is a persulfate solution, a solute of the leaching solution I is composed of organic acid, iodized salt and chloride salt, and a solute of the leaching solution II is composed of sodium sulfide and sodium hydroxide. The method for leaching the mercury-contaminated soil by adopting the leaching agent comprises the steps that oxidation treatment is carried out on the mercury-contaminated soil, and then the mercury-contaminated soil is sequentially subjected to leaching by adopting the leaching solution I and the leaching solution II. The method has the advantages that efficient elution of mercury with various valence state in the mercury-contaminated soil can be realized, mercury residues are little, in addition, secondary pollution to the environment can be avoided, and the cost is low.

A flue gas desulfurizer is prepared from the following raw materials by weight: 100-120 parts of active carbon powder, 30-34 parts of calcium hydroxide, 10-12 parts of carboxymethylcellulose sodium, 10-12 parts of fly ash, 3-4 parts of pectin, 40-45 parts of diatomite, 20-24 parts of vermiculite, 20-24 parts of radical lobelia, 30-35 parts of herba lycopi, 100-120 parts of moso bamboo, 1-2 parts of sodium dodecyl benzene sulfonate, 4-5 parts of auxiliary agents, and a proper amount of water. By using active carbon, diatomite and vermiculite, the desulfurizer of the invention has adsorption and ion exchange effects; by using calcium hydroxide and fly ash, rapid desulfurization is realized and energy is saved; by using moso bamboo and Chinese herbal medicine, the desulfurizer of the invention has antibacterial and adsorption effects; the desulfurizer of the invention has good removal capability for sulfur dioxide, is easy to regenerate, and causes no secondary pollution.

The invention discloses a preparation method of an astaxanthin microcapsule and application to cigarette shreds. The preparation method comprises the steps of blending an astaxanthin solution prepared from crustacea marine organisms or haematococcus pluvialis spore and cannabis oil into an astaxanthin and oil solution with the mass concentration being 1-10%; mixing one or two of maltodextrin, beta-cyclodextrin, modified starch and arabic gum with distilled water, so that a wall material solution with the mass content of solid matter being 20-30% is obtained; mixing the wall material solution with compound emulsifier according to the mass ratio of 1: 2, and conducting stirring till mixed liquor is completely emulsified, so that a wall material and emulsifier solution; mixing the astaxanthin and oil solution with the wall material and emulsifier solution according to the mass ratio of 1: 10, and conducting stirring, so that astaxanthin emusifier is obtained, and conducting homogenization and spray-drying, so that the astaxanthin microcapsule is obtained. The astaxanthin microcapsule is dissolved through water and then sprayed to the cigarette shreds. By means of the preparation method of the astaxanthin microcapsule and application to the cigarette shreds, gas phase free radicals in cigarette smoke can be effectively decreased, meanwhile, characteristic aroma of cigarettes can be achieved, cigarette irritation can be lowered, and cigarette smoking quality can be improved.

The invention discloses a reinforced desulphurization method and a reinforced desulphurization system of a desulphurizer for the combustion system of a circulating fluidized bed, relating to efficient utilization for the desulphurizer and increase for desulphurization efficiency during the combustion process of the solid fuel of the circulating fluidized bed. The reinforced desulphurization system comprises a combustion chamber, a gas-solid separation device, a vertical tube, a material return device, a mechanical control valve, an activation and regeneration chamber, a vapour inlet and a high-concentration CO2 inlet. The reinforced desulphurization method and the reinforced desulphurization system disclosed by the invention have the main characteristic that unreacted CaO in circulating ash during the combustion and desulphurization process of the circulating fluidized bed is activated by vapour and carbonated with high-concentration CO2 to generate CaCO3, CaCO3 is returned to a hearth and performs a sulphation reaction by virtue of the principle that a CaCO3 surface structure which is calcined/carbonated for times is more beneficial to the sulphation reaction, so that increase of the utilization efficiency and the desulphurization efficiency of the desulphurizer are contributed.

The invention relates to a low-cost flue gas denitration catalyst, which is a fly ash supported metal ion catalyst prepared from metal salt and fly ash. The mass ratio of metal to fly ash in the catalyst is 1:20-1:10. The processes of the thermal decomposition of the fly ash of a power plant and the precursor of an active component and the uniform distribution of the active component is integrated. The surface of the fly ash of the power plant is smooth and compact, the pores of the fly ash are developed by using a high-pressure reaction kettle, the pore structure is richer, meanwhile, the steam activation is adopted, so that the active components are more fully and uniformly distributed on the surface of the fly ash of a carrier; the active component of the catalyst, iron-zinc-copper metal oxide, exists in the nanometer-scale particle size, so that the denitration efficiency of the catalyst is improved and the effective denitration time is prolonged; the catalyst has higher denitration efficiency, high denitration precision and strong capability of removing NOX in flue gas; the catalyst carrier fly ash raw material is cheap and easy to obtain, has no secondary pollution and reduces the cost; the equipment process is simple and the investment cost is low.

The invention discloses a method for deeply removing arsenic, lead, zinc and tin by pyrogenic refining of crude copper. The method comprises the following steps of (1) adding scrap lead materials intothe crude copper, and performing heating to completely melt the materials; (2) blowing a deslagging agent and an oxidizing agent into a crude copper melt, completing oxidizing slagging and impurity removal, and performing deslagging; and (3) blowing a reducing agent into copper liquid treated in the step (2), carrying out reduction deoxidation operation, then carrying out deslagging, and castingthe copper liquid into an anode plate. The method is wide in raw material adaptability, easy to operate, low in cost, easy to be compatible with an existing process, good in removal effect on the arsenic, the lead, the zinc and the tin, and good in industrial application prospect and value.

The invention relates to an apparatus used for reducing an arene extraction solvent sulfolane, and an application thereof. The apparatus has a structure that: an arene extraction apparatus lean solvent outlet port is connected to a flow meter (1); the flow meter (1) is connected to a solvent heat exchanger (2); the solvent heat exchanger (2) is connected to a solvent cooling device (3); the solvent cooling device (3) is connected to a filter (4); the filter (4) is connected to a resin exchange tower (5); the resin exchange tower (5) is connected to another channel of the solvent heat exchanger (2); the other channel of the solvent heat exchanger (2) is connected to the other port of the arene extraction apparatus; and alkalescence anion-exchange resin is installed in the resin exchange tower. Under the conditions that the space velocity is 1.5-9.0h<->, and the temperature is 40-60 DEG C, after the processing of the apparatus, the pH value of a sulfolane solvent is increased to above 6.0, the chromaticity is reduced to 0-0.5, a chlorine ion content is reduced to below 1mg/kg, an equipment corrosion inhibition efficiency is 81.5%, and a maintenance period of the arene extraction apparatus reaches 3 years.

The invention discloses a bacterial cellulose film/nano-iron composite material and a preparation method thereof. The preparation method of the bacterial cellulose film/nano-iron composite material comprises the following steps of: (1) putting bacterial cellulose film in an alkaline solution for activation to obtain activated bacterial cellulose film; (2) performing extraction on the activated bacterial cellulose film by using a polar-alcohol aqueous solution so as to remove free water/bound water on the surface and interior of the film and therefore obtain semi-dehydrated activated bacterialcellulose film; and (3) putting the semi-dehydrated activated bacterial cellulose film in a ferrous ion solution, and performing in-situ reduction on ferrous ions under the action of sodium borohydride to obtain the bacterial cellulose film/nano-iron composite material. According to the bacterial cellulose film/nano-iron composite material and the preparation method thereof, an activation in-situchemical precipitation method is adopted to prepare the bacterial cellulose film loaded nano-iron composite material, so that nano-iron is distributed unformly in the interior and on the surface of the bacterial cellulose film, and thus the ability of removal of microorganisms/organic pollutants is improved.

The invention discloses a deoxygenating and desulfurization double-function fine desulfurization agent and a preparation method thereof. The structure of the fine desulfurization agent is aAxOy.bGO.mDxOy.nMO3, wherein A is iron or manganese; G is calcium or magnesium; D is one of copper, zinc, antimony, lead and silver; and M is molybdenum or tungsten. The deoxygenating and desulfurization double-function fine desulfurization agent comprises the following components according to the total mass of the catalyst: 40%-65% of AxOy, 25%-40% of GO, 5%-10% of DxOy and 5%-10% of MO3. The catalyst can be used for purifying coke oven gas and raw gas for producing methanol by converter gas, and has the advantages of good deoxygenating and desulfurization activity, no byproducts including mercaptan and the like, stable activity and the like.

The invention provides a processing method and device for a silicon wafer. The processing method of the silicon wafer comprises the steps that a silicon wafer conveyor box is placed in a unloading tank containing an immersion solution and in the overflow state, the interaction surface of the silicon wafer conveyor box is parallel to the horizontal surface of the silicon wafer conveyor box, the bearing surface for bearing a silicon wafer in the silicon wafer conveyor box is perpendicular to the horizontal surface, after the final polishing of the silicon wafer is completed, and the silicon wafer is vertically loaded into the wafer conveyor box and immerse in the immersion solution. According to the processing method of the silicon wafer, after the final polishing of the silicon wafer is completed, the silicon wafer can be vertically loaded into the silicon wafer conveyor box and immersed in the immersion solution, so that the silicon wafer in the silicon wafer conveyor box is avoided tocome out when the silicon wafer is finally polished and loaded into the silicon wafer conveyor box, and the etch caused by residual slurry is reduced; and the processing method of the silicon wafer can be realized through the silicon wafer processing device, the secondary pollution of the silicon wafer is effectively reduced, and the cleaning effect is improved.

The invention discloses a treatment method of industrial printing and dyeing wastewater. The treatment method sequentially comprises the steps as follows: pretreatment, acidizing treatment, reinforced bio-contact oxidation and deep treatment. Wastewater subjected to biological treatment enters a secondary sedimentation tank for sludge and water separation, and separated wastewater is subjected to deep treatment. The COD of effluent can be controlled at 50 mg/L or below through treatment with weak base resin or combined treatment with weak base resin and strong base resin, the problem that the low-concentration industrial printing and dyeing wastewater treatment process is complex at present is solved, and the effluent can reach the emission or reuse requirement.

The invention discloses Chinese pine needle ferment and a production method thereof. The Chinese pine needle ferment is prepared from the following raw materials: Chinese pine needles, saccharomycete, honey, fruits and water. The preparation method of the Chinese pine needle ferment comprises the following steps: activating saccharomycete and carrying out amplified culture, cleansing the raw materials, draining, crushing and fermenting, so that a Chinese pine needle ferment stock solution is prepared. The Chinese pine needle ferment prepared by the preparation method disclosed by the invention retains activities and functions of the active ingredients to the maximum, and is capable of neutralizing unnecessary free radicals from the human body, resisting oxidation, improving immunity, postponing senility, reliving fatigue, promoting growth and development as well as promoting cardiovascular health; thus, the Chinese pine needle ferment has the effects of maintaining beauty, keeping youth, reinforcing the body, slimming, reducing blood lipid, reducing serum cholesterol, regulating body metabolism and promoting hematopoietic function. The Chinese pine needle ferment stock solution is pure in aroma and flavor; and the sugar content is no larger than 6 grams/liter while the total acid content is 12-17 grams/liter.

The invention belongs to the field of resource recovery technique and relates to a preparation method and applications of a continuous silica-based waste adsorbent. The preparation method comprises the following steps: firstly carrying out activation pretreatment with hydrochloric acid for 1-4hours at 65-95 DEG C according to the solid-liquid ratio of (1:4)-(1:15) by utilizing waste material rich in silicon resources, leading the activated silica-based adsorbent material to adsorb molecules of organic matters with certain characteristic, carrying out carbon sequestration thermal treatment for 2-4hours at 200-350 DEG C to obtain the continuous silica-based waste adsorbent B, wherein the mass percentage of the thermal treatment oxygen is 0.1%-21%. Heavy metal is bound from the waste water and then desorbed with hydrochloric acid, the heavy metal is accumulated into water, and the recycled absorbent is used for adsorbing organic matters again, in this way, the recycling is carried out. The continuous adsorbent has selective accumulation capability on heavy metal Pb, the preparation method is simple, environment-friendly in technique, can realize maximum resource utilization of the silica-base wastes while the secondary pollution is avoided, thereby palying a positive role in treating the waste water.

The invention relates to a preparation method and application of a phycomycete symbiont for degrading culture wastewater containing high-concentration antibiotics and having a low C/N ratio. The invention belongs to the field of water treatment, and aims to solve the technical problems of long treatment time, high cost and poor treatment effect caused by the fact that the existing process for biologically treating aquaculture wastewater by using activated sludge is complicated and all treatment processes cannot be synchronously carried out. The method comprises the following steps: culturing chlorella to a logarithmic phase, and centrifuging to obtain a chlorella cell precipitate; performing specific domestication on the activated sludge, and centrifuging to obtain activated sludge precipitate; and uniformly mixing the phycomycete and the phycomycete to obtain the phycomycete symbiont for degrading culture wastewater containing high-concentration antibiotics and having a low C/N ratio. According to the application, the obtained phycomycete symbiont is used for treating culture wastewater containing high-concentration antibiotics and having a low C/N ratio. The algae-bacteria symbiotic system can achieve a good nitrogen and phosphorus removal effect in a short time, is simple and easy to operate and relatively low in preparation cost, and has the potential of large-scale popularization and application.

The invention relates to a novel efficient desulfurization and denitrification agent. The novel efficient desulfurization and denitrification agent is prepared by taking solid waste slag as a main material and taking calcium hypochlorite as an auxiliary material, wherein the solid waste slag contains a certain quantity of iron and calcium playing an important role in desulfurization and denitrification of flue gas, and through determination, the content of average effective calcium in the waste slag is 20%, the content of average effective iron is 8.6%, the content of Fe<2+> is 5.8%, and the content of Fe<3+> is 2.6%. The novel efficient desulfurization and denitrification agent takes calcium hypochlorite as the auxiliary material and takes Ca(ClO)2 as an absorption medium for desulfurization and denitrification reaction, thereby having the following two advantages: (1) ClO- has very strong oxidizing property so as to be favorable for oxidizing SO2 and NO dissolved in water to SO4<2-> and NO3<-> which are in highest valence states respectively, and removing together; (2) a large amount of Ca<2+> exists in a reaction system, and the dissolution of slightly soluble CaSO4 is inhibited so as to be favorable for producing a solid precipitate and further promoting the movement of balance of the desulfurization and denitrification reaction to the positive direction. The novel efficient desulfurization and denitrification agent can effectively remove sulfur and nitrates in the flue gas, and fully utilize the solid waste slag so as to reduce the serious harm to the water and soil; simultaneously, the novel efficient desulfurization and denitrification agent can be fully utilized to perform desulfurization and denitrification on the flue gas so as to achieve the effects of purifying and protecting the environment.

The invention discloses a low-scratch glass paint remover and a preparation method thereof. The low-scratch glass paint remover comprises the following components in percentage by mass: 28%-49% of deionized water, 15%-20% of an inorganic base, 2%-4% of a complexing agent, 10%-12% of an organic base, 6%-8% of an organic solvent a, 6%-8% of an organic solvent b, 8%-12% of an organic solvent c and 4%-8% of an organic solvent d. According to the invention, the ratio of water to an inorganic base in a formula is reasonably controlled, so that the corrosion of glass is reduced to the greatest extenton the premise of ensuring the paint removal speed, the glass surface subjected to paint removal has excellent removal capability on silk-screen printing ink, the corrosion phenomena of bluing, fogging and the like on the glass surface are avoided, the scratch rate is controlled to be 5% or below, and the glass product quality is effectively ensured; and the method provided by the invention is simple in preparation process, easy to realize and high in production efficiency, and can be used for quickly and efficiently preparing the low-scratch glass paint remover with excellent comprehensive performance.

The invention relates to the technical field of dust collection devices, and particularly relates to movable electrostatic dust collection device which comprises frame bodies. Each frame body comprises a stand column, a base and a handrail. Each stand column is of a hollow structure. Through air openings are formed in the opposite sides of the two stand columns. An electrostatic adsorption mechanism is further arranged between the two stand columns. The electrostatic adsorption mechanism comprises an adsorption plate, a dust suction groove and a shielding groove. The adsorption plate comprisesinsulating plates and charge plates. One face of each of the two charge plates are fixedly connected with the opposite face of each of the two insulating plates. A battery is fixedly arranged in thehandrail and is electrically connected with the charge plates. The dust suction groove is located in the bottom of the adsorption plate. The shielding groove is located in the top of the adsorption plate. Connecting mechanisms are arranged on the sides, opposite to each other, of the two stand columns, so that multiple frame bodies can be spliced in pairs through the connecting mechanisms. According to the invention, dust in air can be adsorbed to handrails, so that dust pollution can be reduced.

The invention discloses a process for ultrasonic-assisted extraction of flavonoids from camellia chrysantha (Hu)Tuyama. The process comprises the following preparation steps that a, the camellia chrysantha (Hu)Tuyama is dried, crushed and hermetically stored at low temperature to obtain a product A; b, the product A is subjected to ultrasonic extraction by adopting ethanol to obtain a flavonoid extract solution of the camellia chrysantha (Hu)Tuyama, wherein the volume fraction of the ethanol is 50-90%, the material ratio of the product A to the ethanol is 1:(10-50) g.mL<-1>, the extraction temperature is 40-90 DEG C, and the extraction time is 10-30 minutes. The process has the advantages that the extraction rate of the flavonoids in the camellia chrysantha (Hu)Tuyama is high, under the optimal technological conditions, the extraction rate of the flavonoids of the camellia chrysantha (Hu)Tuyama reaches 5.41%, the capabilities of removing DPPH free radicals and ABTS free radicals by theflavonoids of the camellia chrysantha (Hu)Tuyama are improved and reach 74% and 84% respectively, the removal capability of the extract is high, the oxidation resistance is good, the camellia chrysantha (Hu)Tuyama is widely developed and utilized, and the economic and social benefits are good.

The invention relates to coconut chaff extract and application thereof in preparing an antioxidant. The coconut chaff extract is prepared through a following method comprising the following steps: (1)taking coconut chaff, adding 5 to 10 mass times of absolute ethanol, immediately filtering after carrying out reflux extraction for 5 to 8 hours, removing filter residue, and carrying out vacuum concentration on filtrate, thus obtaining an extract; (2) carrying out macroporous resin column adsorption on the extract obtained in the step (1), eluting by using ethanol of which the volume percentageis 60 to 70 percent, collecting 4 to 6 column volume times of eluate, carrying out vacuum concentration, and carrying out vacuum drying, thus obtaining the coconut chaff extract. The coconut chaff extract disclosed by the invention is capable of enhancing the scavenging capacity of rutin on hydroxyl free radicals and DPPH (2,2-diphenyl-1-picrylhydrazyl) free radicals, can be developed and used forpreparing the antioxidant, and can be used in the fields of medicine, food, cosmetics and the like.

The invention discloses special selenium-rich and molybdenum-rich fertilizer for bitter gourds. The fertilizer is prepared from raw materials as follows: boron fulvate, ammonium carbonate, calcium superphosphate, potassium chloride, a microbial growth regulator, iron fulvate, composted cow dung, fly ash, carbendazol, a urease inhibitor, octyl mercaptan, sodium borate, bagasse powder, organophosphorus bacterial fertilizer, borax, thiram wettable powder, organic microelements, biomass ash, molybdate and inorganic selenium salt. The organic microelements comprise a tartaric acid complex, a sucrose complex and a humic acid complex. The special selenium-rich and molybdenum-rich fertilizer for bitter gourds has the advantages that the bitter gourd yield is high, the disease resistance of plantsis high and the fertilizer is suitable for large-area application. Besides, fruited bitter gourds are larger, heavy and good in quality, and selenium-rich and molybdenum-rich bitter gourds contain selenium and molybdenum essential to the human body and animals, have high nutrient value and are beneficial to health.