- Tytuł:
- Preparation of carbonaceous heavy metal adsorbent from palm shell using sulfur impregnation
- Autorzy:
-
Sugawara, K.
Wajima, T.
Kato, T.
Sugawara, T. - Powiązania:
- https://bibliotekanauki.pl/articles/346975.pdf
- Data publikacji:
- 2007
- Wydawca:
- Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydział Technologii i Inżynierii Chemicznej
- Tematy:
-
palm shell
heavy metal adsorption
carbonaceous adsorbent
pyrolysis
sulfur impregnation - Opis:
- 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.
- Źródło:
-
Ars Separatoria Acta; 2007, 5; 88-98
1731-6340 - Pojawia się w:
- Ars Separatoria Acta
- Dostawca treści:
- Biblioteka Nauki
Artykuł