65results about How to "With adsorption effect" patented technology

The invention relates to fish bone charcoal adsorbent, a preparation method thereof and application to heavy metal waste water. The preparation method includes the following steps of 1 impurity removing, wherein an obtained fish bone raw material is stirred and scalded in water to remove impurities; 2 drying, wherein the fish bones are put into a drying oven to be dried after the impurities are removed; 3 pulverizing, wherein the dried fish bones are pulverized in a pulverizer, and obtained fish bone dust serves as an adsorbent raw material; 4 high-temperature roasting, wherein the prepared fish bone dust is roasted and carbonized at high temperature, naturally cooled to the room temperature and then taken out to obtain the fish bone charcoal adsorbent. The preparation method has the following advantages that fish processing waste is low in price and easy to obtain, as the fish processing waste is prepared into fish bone charcoal, the potential value of the fish processing waste can be developed further, and the environmental pollution caused by discarding the fishing processing waste can be effectively reduced. In addition, the prepared bone charcoal is high in stability and adsorbability, easy to regenerate after absorption and reusable.

The invention relates to the field of ammonia nitrogen adsorbents, and discloses a gasified slag-based composite ammonia nitrogen adsorbent and a preparation method and a regeneration method thereof. The method comprises the steps that 1, gasified slag is subjected to charcoal-ash separation, carbon-rich slag is obtained, and in the carbon-rich slag, the carbon element content is larger than or equal to 15 wt%, and the silicon element content is larger than or equal to 40 wt%; and (2) under the alkaline condition and in the presence of water, the carbon-rich residues, a sodium source substance and an aluminum source substance are subjected to a hydrothermal reaction, and the aluminum source substance is selected from at least one of soluble metaaluminate and soluble aluminum salt. The gasified slag-based composite ammonia nitrogen adsorbent is prepared from the gasified slag, and the adsorbent has good ammonia nitrogen adsorption performance on middle and low concentration ammonia nitrogen, so that good economic benefits and environmental protection benefits are realized.

A rotary separator for garbage classification comprises a separator body and a separating device. A feeding port and a discharging port are formed in the separator body, the separating device comprises a negative pressure connecting port, a columnar filter screen and a rotating component, the rotating component comprises a rotating body, a rotating shaft and a motor, the rotating body is coaxiallyarranged in the columnar filter screen, the motor drives the rotating shaft to rotate, the rotating shaft is fixedly connected with the rotating body, and a spiral blade extending to the dischargingport is arranged below the columnar filter screen and abuts against the inner wall of the separator body. Garbage entering from the feeding port is separated through the high-speed rotation of the rotating body in the separating device and matching of the filter screen, the rotating body rotating at the high speed has an adsorption effect, the adsorption effect is matched with the filter screen topeel smaller garbage out of the garbage, and larger garbage falls into the discharging port under the action of gravity, so that the garbage of different sizes in the garbage can be separated, the garbage separation efficiency is improved, and the labor investment is reduced.

The invention provides a magnetic recoverable hollow columnar ZnFe2O4 / CaTiO3 composite material and a preparation method thereof and application thereof. The hollow columnar composite material is prepared by adopting leaf veins as a structure carrier, cheap and easily available CaCO3 is used as a calcium source to replace soluble calcium salt, acid mixed in the titanium source dissolves the calcium source to obtain calcium ions, weak acid H2C2O4 replaces H2SO4 or HNO3 and other strong acid regulators, weak base CO (NH2) 2 replaces NaOH or KOH and other strong base regulators, and strong acid and strong base pollution in the preparation process is effectively avoided. The invention provides the preparation method thereof which has an adsorption effect and is recyclable in magnetism withoutstrong acid, strong alkali and high-temperature calcination, the prepared composite material is in a hollow columnar ZnFe2O4 / CaTiO3, is uniformly distributed and has excellent magnetic performance, the recycling of the composite material is effectively improved. The invention has a certain adsorption effect and good photocatalytic performance, and has a good application prospect.

The invention relates to foamed ceramics for purifying a metal melt and a preparation method thereof. The preparation method has the technical scheme that firstly, 10 to 80 weight percent of calcium hydroxide powder, 10 to 80 weight percent of calcium zirconate powder and 1 to 10 weight percent of zirconium dioxide powder are mixed to obtain mixed powder; then, 0.1 to 3 weight percent of additives of the mixed powder and 30 to 100 weight percent of water are additionally added; wet mixing is performed to obtain slurry; then, polyurethane sponge is soaked into the slurry; repeated extrusion is performed for 2 to 20 min; the polyurethane sponge containing the slurry is taken out and is extruded; drying is performed for 12 to 24h under the condition of 200 to 300 DEG C; a foamed ceramic prefabricated block is obtained; finally, the foamed ceramic prefabricated block is put into a heating furnace; the temperature is raised to 1300 to 1600 DEG C; heat insulation is performed for 1 to 5h; natural cooling is performed; the foamed ceramic for purifying the metal melt is obtained. The preparation method is characterized in that the process is simple; the cost and the energy consumption are low. The prepared foamed ceramic for purifying the metal melt has high use temperature, stable high-temperature performance and good anti-hydration performance, and is applicable to a filtering material for high-purity metal smelting.

The invention discloses an iron-doped TiO2-SiO2 composite aerogel, and a preparation method and application thereof. The preparation method comprises the following steps: uniformly mixing PEG, absolute ethanol, ferrocene and deionized water at 40 DEG C under stirring to obtain mixed liquid; successively adding concentrated nitric acid with a concentration of 65.0-68.0 (w / %), TEOS, TIP and HAc intothe obtained mixed liquid, and carrying out hermetic stirring at room temperature for 60 min to form a mixed sol; subjecting the obtained mixed sol to hermetic aging and then to aging, and subjectingthe surface of the aged gel to ammoniation to obtain a hydrophilically modified gel; and washing the obtained hydrophilically modified gel with n-hexane, and carrying out hierarchical drying and calcination successively to obtain the iron-doped TiO2-SiO2 composite aerogel. The iron-doped TiO2-SiO2 composite aerogel provided by the invention is applied to degradation of reactive dyes, aromatic hydrocarbons or organic pesticides. The method of the invention avoids the hydrolysis of an inorganic iron salt in a sol liquid system, and prepares the iron-doped TiO2-SiO2 composite aerogel through atmospheric pressure drying, so the method is simple in reaction process and mild in reaction conditions.

The invention discloses a preparation method and application of a modified silica gel material, belonging to the technical field of silica gel. The method of the present invention overcomes the shortcomings of using organic solvents and taking a long time in the common silica gel modification method, shortens the modification time while ensuring the modification effect, and avoids the use of organic solvents; the method of the present invention Using silica gel as the substrate, the modifying agent is transported to the surface of silica gel in the form of gas under certain conditions, so that the surface properties of silica gel change, thereby obtaining modified silica gel material. In addition, the silica gel material modified by the mercapto-containing silane coupling agent prepared by the present invention has a good effect on [Au(S 2 o 3 ) 2 ] 3‑ Complex ions have an adsorption effect and can effectively recover gold in the thiosulfate gold leaching solution. The method of the invention does not use organic solvents, effectively avoids the environmental problems caused by the use of organic solvents, shortens the modification time, reduces the time cost and expense in practical applications, and has broad application prospects.

The invention discloses an activated carbon composite material for sewage treatment and a preparation method thereof. The activated carbon composite material for sewage treatment comprises the following components in parts by weight: 30-50 parts of modified activated carbon; 30-50 parts of diatomite; 10-20 parts of bamboo carbon; 10-20 parts of macro-porous adsorption resin; and 5-10 parts of chitosan. The activated carbon composite material for sewage treatment has adsorption effects on various organic substances and various heavy metal elements.

The invention discloses a treatment agent for waste penetrant, a preparation method and a treatment process thereof, and belongs to the field of wastewater treatment. The treatment agent is prepared from nano-enzyme WTCLEA, activator WRLL and activator BOJF for activating the nano-enzyme WTCLEA. The nano-enzyme WTCLEA is added with activators prior to use, and the activator WRLL and activator BOJFare medicaments needed for activating original WTCLEA, respectively. The activator WRLL is also used a medicament needed for activating transitional WTCLEA to activated WTCLEA. According to the invention, the advanced nano-enzyme WTCLEA is selected according to the characteristics of high concentration of pollutants and larger variation of water quality and quantity in wastewater from waste penetrant to improve the low efficiency of biochemical microorganism treatment, simplify processing devices and improve treatment process, thereby ensuring effluent water quality and water quantity.

The invention discloses a biological wool pendulum type deodorization equipment for sewage sludge malodorous waste gas, which belongs to the field of sewage sludge waste gas treatment. This scheme introduces the malodorous waste gas into the microbial deodorization box by starting the wind-inducing device. When the waste gas contacts the microbial soil When filling the layer, microorganisms are used to absorb and transform hydrogen sulfide, ammonia and other gases in the exhaust gas. At the same time, the water vapor in the exhaust gas reacts with the sodium peroxide powder in the reaction powder to generate oxygen and release heat at the same time. On the one hand, it can Provide oxygen for the life activities of microorganisms. At the same time, with the help of the deliquescence effect of sodium hydroxide in the product, the absorption of water vapor in the exhaust gas can be further improved, thereby improving the moisture absorption effect of the entire elastic connecting conduit, thereby improving the water vapor and water vapor. The reaction efficiency of sodium peroxide powder, on the other hand, with the help of the generated oxygen and the reaction of reducing iron powder, it can further generate heat, thereby accelerating the conversion efficiency of microorganisms to waste gas.