Charcoal carbon filter1/13/2024 ![]() That’s the equivalent of a football pitch compressed into the size of a teaspoon. Depending on its quality, carbon can have an internal surface area ranging from 500 to 2000 m²/g. The inside of an activated piece of carbon is like a complex cavernous system on the micro scale, with immense surface areas in which to absorb and trap toxic particles. This process forms little pores and pockets. The treatment is done by superheating it with steam or some other means and with that, cleansed of gases and impurities. Then, charcoal or carbon has a natural affinity to absorb or capture organic pollutants. How does active carbon work?Īctive carbon is more or less the same as the charcoal used in barbecues, but it is only activated for filtering after it has been given a special treatment. Then consider that one gram of active carbon has the equivalent filtering surface of 500 m² or even more. How many toxic particles do you think could stick to its surface? Imagine a square plate with a surface area of 500 m². We have an ideal solution for that kind of situation in the form of active carbon. However, not all gases are toxic – as sometimes we are talking about the kinds of strong smells that come out of a galley. Think, for instance, about extraction operations on offshore platforms or dredgers where gasses released during the process can be dangerous for crew health. Sometimes conditions are so extreme that even the best high-efficiency filters are not up to the job.
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