No.3（2000）20.Effect of excluding ash treatment of waste newsprint paper on the porous structure of activated carbon

Takahiko IIDA, Kensuke KAWARADA, Masahiro SHIMADA, Kunihiko HIGASHI, Yukio KOSAKA, Shigeru NAGASHIMA, Kenji OTUKA

In order to improve adsorption properties of activated carbon, we examined a method of excluding ash content treatment of waste newsprint paper and made activated carbon from deashed waste newsprint paper. We measured the characteristics of deashed activated carbon, for specific surface area, pore volume(measured by MP and DH method), and adsorption of Benzene and Toluene gas. As a result, the specific surface area of deashed activated carbon was 1255m²/g, the pore volume (measured by MP method) was 451mm³/g, the pore volume(measured by DH method) was 863mm³/g, which was more than untreated carbon and activated carbon prepared from coconut shell. The Benzene and Toluene adsorption of deashed activated carbon was better than that of activated carbon prepared from coconut shell.

Keywords
activated carbon, ash content, deashed waste newsprint paper, specific surface area, pore volume (measured by MP method or DH method), benzene or toluene adsorption

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