Osmo Newsletter No. 5

Thank you for your continued support.
My name is Yashiki from the Sales Department of Osmo Co., Ltd.
It has become a bit chilly, and I find it hard to let go of my jacket. I feel that the season of autumn passes by in the blink of an eye.
Now, I would like to talk about activated carbon. It is used in water purifiers and has a good relationship with water.
Activated carbon is used for various purposes, and this time we will delve into its mechanisms and applications.
Activated carbon is a form of carbon that is produced by reacting carbonaceous materials such as coal and coconut shells with gases or chemicals at high temperatures to create fine pores (diameter 10–200 Å, where 10 Å = 1 nm). These fine pores are structured in a mesh-like formation within the carbon, and the walls of these pores provide a large surface area that adsorbs various substances. Most activated carbon consists of over 90% carbon, with some of the carbon forming compounds with oxygen and hydrogen. The ash content includes elements specific to the raw materials, such as Na, Si, K, Ca, and Fe. Well-refined activated carbon is used as a food additive and medicinal charcoal.
(Source: Kuraray Environmental Solutions Division)
In simple terms, it means that odors and various substances stick to the walls of the holes in activated carbon and do not let go. It reminded me of the insect-eating plant, the pitcher plant.

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The activated carbon filter effectively removes free chlorine and organic compounds, which are the causes of odors. Its applications include the removal of chlorine from tap water, removal of organic matter from raw water, elimination of unpleasant odors from raw water, and removal of coloring substances, among others.