Sorption properties of activated carbon derived from used paper and of amorphous 2CaO·Al2O3·2SiO2 from paper sludge ash

K. Okada, V. K. Jha, Yoshikazu Kameshima, A. Nakajima, K. J D MacKenzie

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Two materials with highly functional sorption properties were prepared from used paper and the paper sludge generated as a by-product of the process of paper production. Activated carbon can be prepared either by chemical activation using various chemical agents or by physical activation using steam. The chemically activated carbons show better porous properties than those obtained by physical activation. The activated carbon prepared using K2CO 3 showed the highest specific surface area of about 1700 m 2/g. This activated carbon showed very steep water vapour adsorption at 50 to 70% relative humidity with a maximum adsorption of >1000 ml/g. It also showed superior adsorption of methylene blue dye from solution. These adsorption properties make it a candidate material for humidity control and as a water purifying agent. An amorphous substance with 2CaO·Al 2O3·2SiO2 composition was prepared by mechanochemical and heat treatment of paper sludge at 500-800°C. Since these materials consist of three components with different chemical properties, they are able to take up heavy metal cations, NH4 + and PO 4 3- ions, which are principally implicated in the eutrophication of lakes and ponds. Amorphous 2CaO·Al2O 3·2SiO2 obtained from paper sludge is therefore a candidate water purifying material and also has potential for soil recovery applications.

Original languageEnglish
Title of host publicationWaste Management in Japan
EditorsH. Itoh
Pages51-60
Number of pages10
Publication statusPublished - 2004
Externally publishedYes
EventSecond International Conference on Waste Management and the Environment - Rhodes, Greece
Duration: Sep 29 2004Oct 1 2004

Other

OtherSecond International Conference on Waste Management and the Environment
CountryGreece
CityRhodes
Period9/29/0410/1/04

Fingerprint

Ashes
Sewage sludge
Activated carbon
Sorption
Adsorption
Chemical activation
Humidity control
Eutrophication
Ponds
Specific surface area
Chemical properties
Water vapor
Heavy metals
Byproducts
Lakes
Water
Atmospheric humidity
Steam
Dyes
Positive ions

Keywords

  • Activated carbon
  • Amorphous calcium aluminosilicate
  • Eutrophication ions
  • Heavy metals
  • Paper sludge
  • Sorption properties
  • Used paper

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Okada, K., Jha, V. K., Kameshima, Y., Nakajima, A., & MacKenzie, K. J. D. (2004). Sorption properties of activated carbon derived from used paper and of amorphous 2CaO·Al2O3·2SiO2 from paper sludge ash. In H. Itoh (Ed.), Waste Management in Japan (pp. 51-60)

Sorption properties of activated carbon derived from used paper and of amorphous 2CaO·Al2O3·2SiO2 from paper sludge ash. / Okada, K.; Jha, V. K.; Kameshima, Yoshikazu; Nakajima, A.; MacKenzie, K. J D.

Waste Management in Japan. ed. / H. Itoh. 2004. p. 51-60.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Okada, K, Jha, VK, Kameshima, Y, Nakajima, A & MacKenzie, KJD 2004, Sorption properties of activated carbon derived from used paper and of amorphous 2CaO·Al2O3·2SiO2 from paper sludge ash. in H Itoh (ed.), Waste Management in Japan. pp. 51-60, Second International Conference on Waste Management and the Environment, Rhodes, Greece, 9/29/04.
Okada K, Jha VK, Kameshima Y, Nakajima A, MacKenzie KJD. Sorption properties of activated carbon derived from used paper and of amorphous 2CaO·Al2O3·2SiO2 from paper sludge ash. In Itoh H, editor, Waste Management in Japan. 2004. p. 51-60
Okada, K. ; Jha, V. K. ; Kameshima, Yoshikazu ; Nakajima, A. ; MacKenzie, K. J D. / Sorption properties of activated carbon derived from used paper and of amorphous 2CaO·Al2O3·2SiO2 from paper sludge ash. Waste Management in Japan. editor / H. Itoh. 2004. pp. 51-60
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AB - Two materials with highly functional sorption properties were prepared from used paper and the paper sludge generated as a by-product of the process of paper production. Activated carbon can be prepared either by chemical activation using various chemical agents or by physical activation using steam. The chemically activated carbons show better porous properties than those obtained by physical activation. The activated carbon prepared using K2CO 3 showed the highest specific surface area of about 1700 m 2/g. This activated carbon showed very steep water vapour adsorption at 50 to 70% relative humidity with a maximum adsorption of >1000 ml/g. It also showed superior adsorption of methylene blue dye from solution. These adsorption properties make it a candidate material for humidity control and as a water purifying agent. An amorphous substance with 2CaO·Al 2O3·2SiO2 composition was prepared by mechanochemical and heat treatment of paper sludge at 500-800°C. Since these materials consist of three components with different chemical properties, they are able to take up heavy metal cations, NH4 + and PO 4 3- ions, which are principally implicated in the eutrophication of lakes and ponds. Amorphous 2CaO·Al2O 3·2SiO2 obtained from paper sludge is therefore a candidate water purifying material and also has potential for soil recovery applications.

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