Preparation of carbonaceous heavy metal adsorbent from palm shell using sulfur impregnation

• Autorzy: Sugawara K. , Wajima T. , Kato T. , Sugawara T.
• Języki publikacji: EN

Abstrakty

EN

We attempt to prepare a heavy metal adsorbent from palm shell with a simple-two step process using pyrolysis and sulfur impregnation. Palm shell was pyrolyzed with three different methods; rapid pyrolysis, slow pyrolysis, and KOH pyrolysis, and the prepared char with high specific surface area was sulfurized with H2S impregnation to obtain the sulfur-impregnated char with the adsorption ability of heavy metals. The pyrolysis char with high specific surface area can be obtained by KOH pyrolysis, which was pre-treated with KOH solution before slow pyrolysis, and can added sulfur into KOH pyrolysis char using H2S gas. The sulfur content of sulfur-impregnated char increased with increasing the time of H2S treatment, and increased the adsorption amount of Pb2+ from aqueous solution. The sulfur impregnated char was more effective for Pb2+ and Zn2+ adsorption than commercial charcoal.

Słowa kluczowe

EN

palm shell; heavy metal adsorption; carbonaceous adsorbent; pyrolysis; sulfur impregnation

• Wydawca: Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, Bydgoszcz
• Czasopismo: Ars Separatoria Acta
• Rocznik: 2007
• Tom: No. 5
• Strony: 88--98
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Sugawara K.

autor

Wajima T.

autor

Kato T.

autor

Sugawara T.

• Department of Materials-process Engineering and Applied Chemistry for Environments, Faculty of Engineering and Resource Science, Akita University, 1-1, Tegata-Gakuen cho, Akita 010-8502, Japan,

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