Waste Management

Biochar that is derived from biomass under controlled heating has many useful properties and can be used to make many things. One of its uses is as a soil nutrient. Which of the following is another prominent use of biochar?

Anti-oxidant in nutraceuticals
Activated carbon for water purification
Raw material for particle boards
Bioplastics for packaging

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Correct Answer
Activated carbon for water purification

How does one convert biochar to activated carbon?

The "activation" is achieved by treating biochar with oxidizing agents, usually steam or carbon dioxide, in the temperature range 500°C-1000 °C.

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