What exactly is ACTIVATED CARBON?
Activated carbon (also called activated charcoal, activated coal or active carbon) is an extremely useful adsorbent. Because of the high surface area, pore structure (micro, meso and macro), and level of surface reactivity, activated carbon enable you to purify, dechlorinate, deodorize and decolorize both liquid and vapor applications. Moreover, activated carbons are economical adsorbents for several industries like water purification, food grade products, cosmetology, automotive applications, industrial gas purification, petroleum and yellow metal recovery mainly for gold. The bottom materials for activated carbons are coconut shell, coal or wood.
Putting on ACTIVATED CARBON
Various kinds of activated carbon are fitted to various specialized applications.
Granulated activated carbon
Pelletized activated carbon
Powdered activated carbon
Impregnated activated carbon
Catalytic activated carbon
Each grade and size activated carbon is application specific. Choosing the correct activated carbon product and mesh size depends on the approval and contaminants you plan to remove.
Typical applications are:
Eliminating volatile organic compounds like Benzene, TCE, and PCE.
Hydrogen Sulfide (HS) and removal of waste gases
Impregnated activated carbon utilized as a bacteria inhibitor in normal water filters
Removal of taste and odor causing compounds like MIB and geosmin
Recovery of gold
Elimination of chlorine and chloramine
Designing an appropriate activated carbon filtration system with plenty of contact time, pressure drop, and vessel dimension is important. Also, activated carbon’s physical and chemical characteristics play an important role in removing contaminants effectively. Therefore, material tests are essential and ASTM test methods like butane activity, surface, density, and water content (moisture) can be executed to find the best suitable material to your application.
Kinds of ACTIVATED CARBON
Coconut shell-based activated carbon
The very large internal surface areas seen as microporosity together with high hardness and occasional dust make these coconut shell carbons particularly attractive for water and important air applications and also point-of-use water filters and respirators
Quite high surface area seen as a large proportion of micropores
High hardness with low dust generation
Excellent purity, with many products exhibiting no more than 3-5% ash content.
Renewable and green raw material.
Coal-based activated carbon
It makes different performance characteristics in industrial applications typically catered to with coal or coconut products.
Wood based activated carbon carries a high area seen as an both mesopores and micropores and possesses excellent decolorizing properties as a result of its signature porosimetry
Catalytic based activated carbon
Catalytic carbon is a class of activated carbon employed to remove chloramines and hydrogen sulfide from h2o.
They have all the adsorptive characteristics of conventional activated carbons, and also the capacity to promote chemical reactions.
Catalytic carbon just isn’t impregnated with caustic chemicals
Because catalytic carbons have zero impregnates, you won’t worry about reduced organic odor capacity or higher bed fire potential of the impregnated carbons.
Catalytic carbon is made by altering the top structure of activated carbon. It really is modified by gas processing at high temperatures to change the electronic structure and make the very best level of catalytic activity on carbon for reducing chloramine and H2S in water. This added catalytic functionality is really a lot greater than that within traditional activated carbons. Catalytic carbon can be an economical solution to treat H2S levels all the way to 20 or 30 ppm. Catalytic carbon converts adsorbed H2S into sulfuric acid and sulfurous acid which are water soluble, so carbon systems can be regenerated with water washing to revive H2S capacity for less frequent physical change-outs.
Relatively low density
Renewable method to obtain raw material
Impregnated Activated Carbon
Surface impregnation chemically modifies activated carbon via a fine distribution of chemicals and metal particles on the internal surfaces of the company’s pores. This greatly raises the carbon’s adsorptive capacity by having a synergism between the chemicals and the carbon. And offers a cost-effective strategy to remove impurities from gas streams which would otherwise not be possible.
Water treatment
Due to its antimicrobial/antiseptic properties, silver-impregnated carbon is an efficient adsorbent for purification in earth-bound domestic and other water systems.
Gas purification
Impregnated activated carbon is employed to treat flue gases in coal-fired generation plants as well as other pollution control applications. Carbon may be specifically impregnated for eliminating acid gases, ammonia and amines, aldehydes, radio-active iodine, mercury and inorganic gases for example arsine and phosphine. Carbon impregnated with metal-oxide targets inorganic gases including HCN, H2S, phosphine and arsine.
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