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What is the surface area of the plastic random packing high specific surface area packing material used in trickling filters as the packing medium?

What is the surface area of the plastic random packing high specific surface area packing material used in trickling filters as the packing medium? Correct Answer 150 m2/m3

The surface area for the plastic random packing high specific area is about 150 m2/m3. This removes only Nitrogen. The void space is around 70%.

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