Activated carbon, likewise called activated charcoal, is a type of carbon that has been treated with oxygen to create millions of tiny pores between the carbon molecules. This expands the surface area of the substance from 500 to 1,500m2/g, or 300-2,000 square meters for each gram. One pound of initiated carbon has the surface area equivalent six football fields.
The expanded surface range of enacted carbon makes the material appropriate for adsorption, a procedure by which impurities are removed. Tainted particles are held inside the carbon’s interior pore structure by electrostatic attraction or chemisorption. The adsorption procedure helps carbon diminish hazardous matter, actuate chemical reactions, nd act as a carrier of biomass and chemicals.
Activated carbon is generally produced using charcoal, however can be also be produced from wood, peat or even coconut shells. There are more than 150 grades of activated carbon, each with their own uses and applications.
Normally, powdered enacted carbon is dosed into the process stream (gas or fluid) and, after a certain contact time, isolated by filtration or settling. A portion of the issues includes: required contact time, dosing system, single or multi-stage dosing, carbon separation, safety measures.
Granular Activated Carbon (GAC) is generally utilized as a part of fixed filter beds, or on the other hand in (pseudo) moving filter beds. A portion of the issues included: required contact time (alternatively: hydraulic space velocity), fixed or versatile filter vessels, filling and discharging offices, safety measures. Furthermore, a important consideration with respect to GAC refers to possible regeneration, in situ or off site.
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