32results about How to "Increase the adsorption specific surface area" patented technology

The invention discloses a perforated plate fresh air introducing and purifying device and belongs to the technical field of air energy recycling and high efficiency energy saving in ventilation equipment. The device comprises a perforated plate purifying, energy recycling and heating core, a fresh air machine, an exhaust fan and an electric cabinet, wherein the size of the perforated plate purifying, energy recycling and heating core is 160mm*160mm to 350mm*350mm; the perforated plate purifying, energy recycling and heating core comprises 45 to 2400 pieces of perforated plate semi-closed conductive combinations and corrugated pieces; each perforated plate semi-closed conductive combination comprises a perforated plate, conductive bands, purifying copper sheets A and B, and heating copper sheets A and B; a square hole shaped fresh air channel with the side length being 1 to 20mm is formed in the perforated plate; the conductive bands are printed or sprayed on the two outer surfaces of the perforated plate; the purifying copper sheets A and B and the heating copper sheets A and B are respectively adhered to the two ends of the conductive bands on the two outer surfaces of the perforated plate; the perforated plate semi-closed conductive combinations and the corrugated pieces form 90 degrees and are assembled alternately and crosswise. The perforated plate fresh air introducing and purifying device has the benefits that new pollutant, such as ozone and the like, is not produced, energy can be efficiently recycled, condensation cannot be produced when the device is used in cold regions, and meanwhile the purification efficiency is high.

The invention relates to a method for preparing carbon black, in particular to a method for preparing carbon black for tires by using carbon solid waste as a raw material, and belongs to the technical field of comprehensive utilization of industrial solid waste resources. The method for preparing carbon black of the present invention comprises the following steps: S1, crushing solid carbon waste, leaching in a mixed solution of acid and hydrogen peroxide, filtering, washing, and drying to obtain carbon powder; S2, obtaining carbon powder obtained in S1 The carbon powder is soaked in an alkali solution, evaporated, thermally cracked, and then activated to expand pores and modify to obtain carbon black; the carbon content in the carbon solid waste is greater than 60 wt%. The properties of the carbon black obtained in the present invention are superior to those of N330 carbon black on the market in all aspects, and its physical properties have also been greatly improved after being filled into tire rubber.

The invention discloses a pervaporation membrane for separating N,N-dimethylformamide aqueous solution, and the pervaporation membrane is a composite membrane formed of polyvinyl alcohol and polyacrylic acid doped with modified silicon dioxide . The present invention also discloses the preparation method of the above-mentioned pervaporation membrane for separating N,N-dimethylformamide aqueous solution, specifically: mixing polyvinyl alcohol, polyacrylic acid and water, and obtaining polyvinyl alcohol aqueous solution after heating; The polyvinyl alcohol aqueous solution is added to the modified silica, and after stirring and mixing, the cast film solution is obtained, and the film is cast into a film; the obtained film is placed in the cross-linking solution for cross-linking treatment, and then dried to obtain the required pervaporation membrane. The present invention can effectively increase the number of hydrophilic groups inside the composite membrane by doping the modified silicon dioxide in the polyvinyl alcohol and polyacrylic acid composite membrane, thereby increasing the hydrophilicity of the composite membrane, and further improving the membrane's ability to separate DMF aqueous solution. The permeation flux and separation coefficient at that time can improve the separation performance of the membrane.

The present invention provides a fermented carbonized phoenix tea granule and its preparation method and application, which are prepared by the method comprising the following steps: (1) preparation of tobacco soil Daisybacteria L4-6 inoculum; (2) utilization of tobacco soil Fermenting fermented fermented tea with Daibella L4‑6 bacterial agent to obtain fermented fermented fermented tea; (3) carbonizing fermented fermented fermented tea to obtain fermented carbonized fermented fermented tea; (4) fermenting carbonized fermented fermented tea powder Put it on a fluidized bed for drying, spray the binder, bond the powder to form granules, and continue drying to obtain fermented carbonized phoenix tea granules. The granules are fermented and applied to cigarettes, which can produce a special aroma that is in harmony with cigarette smoke, enrich the aroma of cigarettes, improve the taste of cigarettes, and have pharmacological effects such as relieving sore throat; after carbonization treatment, it can significantly increase The internal adsorption specific surface area of ​​Fengwei tea strengthens the adsorption of particles to harmful substances in cigarette smoke, and at the same time endows plant particles with a special burnt aroma.

The invention discloses a preparation method of a composite photocatalytic nanomotor. After mixing multi-walled carbon nanotubes with acid, ultrasonic treatment is performed to obtain acidified multi-walled carbon nanotubes; the acidified multi-walled carbon nanotubes are Mix it with ethanol to prepare a suspension, add nano-aluminum, nano-silver, nano-silica sol, and polytetrafluoroethylene to the suspension in sequence, ultrasonically and oscillate to obtain CNTs-Ag-Al-PTFE, and finally add copper oxide, aluminum oxide, Mix hydrochloric acid evenly to prepare a mixed solution, add CNTs-Ag-Al-PTFE to the mixed solution, stir and react at room temperature, centrifuge, wash, disperse the solid in distilled water, irradiate with a high-pressure mercury lamp, and then add hydrogen peroxide ‑Nano-silica sol mixture, stirred at room temperature, separated, washed, dried and ground to obtain a composite photocatalytic nanomotor. The method of the invention has a simple preparation process and is easy to operate. The prepared material can effectively remove water in wastewater treatment harmful microorganisms in.

The invention relates to a preparation method of an ecological security flocculating agent for effectively removing phosphorus and algae in a eutrophic water body. The preparation method comprises the following steps of preparing materials, uniformly mixing original clay with water to obtain clay suspension, adjusting the basicity to 50-90% by dropping dilute acid into the clay suspension, uniformly mixing aluminium polychlorid powder with water to prepare aluminium polychlorid solution, adjusting the basicity to 50-90% by dropping dilute acid or dilute alkali into the aluminium polychlorid solution, pouring the aluminium polychlorid solution into the clay suspension, standing and curing at 50-80 DEG C to obtain curing solution, drying the curing solution at 50-80 DEG C, and crushing and sieving to obtain the flocculating agent. According to the invention, the removal rate of total phosphorus is 93% or more; the removal rate of CODCr is 53% or more; the removal rate of total nitrogen is also above 3%; the removal rate of water-blooming cyanobacteria is 96% or more; the removal rate of algal toxin MC-LR is 7% or more; and the risk in rapidly releasing algal toxin is not caused.