The deep aeration method based on the principle of deep well aeration is to move the deep well originally built underground to the ground to become a tower structure, and reduce the height to more than ten to twenty meters, using all steel structure to facilitate management and maintenance. It becomes very simple, and there is no need to worry about the leakage problem; to open it, to stop it, to buy the shell activated carbon to buy it, and there is no worries about sludge siltation.
All facilities and components in the tower are carbon steel, galvanized steel pipe or stainless steel. No plastic parts are used. There is no problem of aging and brittleness. It can withstand high temperature and low temperature. Carbon steel towers and structural parts are made of epoxy. Coal asphalt anti-corrosion coating, the normal anti-corrosion period is at least three years. With the lowest investment and the most cost-effective, no matter whether it is idle or running, it can last for at least 20 years in any harsh climate, and the stainless steel parts can not be deteriorated for hundreds of years.
Many deep-flow aeration towers with high-flow and high-concentration sewage (waste) water treatment have been built at home and abroad. The shell-shell activated carbon has been successfully used in printing and dyeing wastewater, slaughtering sewage, pharmaceutical, dye, chemical fiber, chemical and other industries. Degradation of organic, toxic, refractory polymer composites and decolorization treatments have achieved good results and showed excellent cost-effective shell activated carbon. It is reasonable to believe that deep aeration towers are used to treat ketchup wastewater. Processing can also achieve success and superior cost performance.
Increase the number of activated carbon meshes and millimeters corresponding to the table content and related websites. Not for advertising. There is a lot of help for consumers. Now activated carbon is in accordance with the purpose, but we do not know the fact can be changed to millimeters.
Activated carbon is widely used in various aspects of industrial and agricultural production, such as alkali-free deodorization (refined desulfurization), ethylene demineralized water (refined filler), catalyst carrier (palladium, platinum, rhodium, etc.), water purification and sewage treatment in the petrochemical industry; Water treatment and protection of power plants in the industry; chemical catalysts and carriers in the chemical industry, gas purification, solvent recovery and decolorization and refining of oils and fats; refining and decolorization of beverages, alcohols, MSG and foods in the food industry; gold in the gold industry Extraction, tail liquid recovery; environmental treatment industry sewage treatment, waste gas and harmful gas treatment, gas purification; and related industries, cigarette filters, wood floor moisture, odor absorption, automotive gasoline evaporation pollution control, preparation of various impregnating liquids Wait. Activated carbon will have excellent development prospects and a broad sales market in the future.
The main use of activated carbon:
1. Used for liquid phase adsorption activated carbon
☆ tap water, industrial water, electroplating wastewater, purified water, beverages, food, medical water purification and electronic ultrapure water preparation.
☆ Decolorization, refining and impurity removal of sucrose, xylose, monosodium glutamate, pharmaceuticals, citric acid, chemical products and food additives
☆ Decolorization, deodorization, deodorization, decontamination, deodorization and decontamination of oils, oils, gasoline and diesel
☆ Purification, refining, decolorization and filtration of fine chemicals, pharmaceutical chemicals and biopharmaceutical process products.
☆Environmental engineering wastewater, domestic wastewater purification, decolorization, deodorization, COD reduction
2. Used for gas phase adsorption activated carbon
☆ Adsorption and recovery of organic solvents such as benzene, toluene, xylene, acetone, oil and gas, and CS2.
☆ cigarette filter, decoration deodorization, indoor air purification (formaldehyde, benzene removal, etc.), industrial gas purification (such as CO2, N2, etc.)
☆Petrochemical industry production, natural gas purification, desulfurization, deodorization, waste gas treatment
☆ Air purification and deodorization in biochemical, paint industry, underground places, leather factories, and animal breeding places.
☆ The odor adsorption of flue gas, the adsorption of sulfides, and the removal of mercury vapor reduce the formation of dioxin.
3. Used in high-demand areas of activated carbon
☆ Catalyst and catalyst carrier (palladium carbon catalyst, ruthenium carbon catalyst, ruthenium carbon catalyst, platinum carbon catalyst), precious metal catalyst and synthetic diamond, gold extraction.
☆ Blood purification, automobile cans, high-performance fuel cells, electric double layer supercapacitors, lithium battery anode materials, energy storage materials, military, aerospace and other high-demand areas.
Activated carbon service:
☆Selection of activated carbon: tailor-made for your business, specially customized, that is, in line with the production needs of the enterprise while reducing the overall cost of the enterprise.
☆Optimized design: Our application engineers will work with your company to optimize the design of adsorption processes, equipment and activated carbon to achieve the best price/performance ratio.
☆ New product development: If you think that the existing activated carbon specifications can not meet the needs of your production applications, please let us know your needs, our engineering and technical personnel can develop with you.
☆Regeneration: Provide services such as activated carbon regeneration, activated carbon filling, recycling and replacement.
☆ Other services: provide application technical consultation, activated carbon price inquiry, imported high-grade activated carbon, etc.
After repeated adsorption and acid-base regeneration, the adsorption performance of activated carbon is still similar to that of the new activated carbon. It can be reused many times, and the nickel ions enriched in the eluent can realize resource recovery. The regeneration effect of activated carbon is shown in Table 3.
The adsorption amount of nickel ions is greatly affected by the pH, and the pH of the solution is changed by acid or alkali to desorb, and the columnar activated carbon is regenerated. When the saturated activated carbon is impregnated with HCl solution, the acidic environment destroys the adsorption equilibrium, the nickel ions are desorbed from the surface of the activated carbon, and the activated carbon restores the adsorption performance. As shown in Fig. 5, the elution rate of Ni2+ increases with the increase of the mass concentration of HCl solution. When the concentration of hydrochloric acid reaches 0.1 mol/L, the elution rate of nickel ions has reached 91.7%, and the concentration of hydrochloric acid continues to increase. The elution rate of nickel ions is slightly increased. The columnar activated carbon regeneration experiment selected HCl solution to be 0.1 mol/L.
The activated carbon is regenerated by the HCl solution, and the nickel ions adsorbed by the activated carbon are eluted. A large amount of hydrogen ions combine with the effective active centers such as CHO, -OH, -COOH, -C==O on the surface of the activated carbon, occupying the activated carbon and nickel ions. The combined position reduces the adsorption amount of nickel ions by the regenerated columnar activated carbon. Therefore, the saturated columnar activated carbon is washed with alkali after pickling, and H+ is replaced to restore the adsorption capacity of the activated carbon. After repeated adsorption and acid-base regeneration, the adsorption performance of activated carbon is still similar to that of the new activated carbon. It can be reused many times, and the nickel ions enriched in the eluent can realize resource recovery.
Steel Rebar as very important building material, is mainly used in highways, railways, bridges, utilities, buildings, municipal construction, reinforced concrete structures .
steel rebar is known as hot rolled ribbed bar. The hot rolled steel bars are made up of the lowest yield points of HRB and grade. H, R, B were hot-rolled (Hotrolled), ribbed (Ribbed), steel (Bars) three words in the first letter of the English alphabet. Hot rolled ribbed bar is divided into two levels, HRB335 (old No. 20MnSi), three HRB400 (20MnSiV, 20MnSiNb, old No. 20Mnti), four grade HRB500 three grade.
Steel Rebar
Steel Rebar,Stainless Steel Rebar,Deformed Steel Bar,Mild Steel Rebar
TIANJIN ZHENXIANG STRIP PROCESSING CO., LTD. , http://www.zhenxiangsteel.com