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Electricity-free production of activated carbon from biomass in Boneo to improve water quality

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Title: Electricity-free production of activated carbon from biomass in Boneo to improve water quality
Authors: Ogawa, Masato Browse this author
Bardant, Teuku B. Browse this author
Sasaki, Yasutaka Browse this author
Tamai, Yutaka Browse this author →KAKEN DB
Tokura, Seiichi Browse this author
Uraki, Yasumits Browse this author →KAKEN DB
Keywords: Activated carbon
Chemical oxygen demand (COD)
Electricity-free mobile furnace
Biomass in Borneo Island
Peat soil
Issue Date: Feb-2012
Publisher: North Carolina State University
Journal Title: BioResources
Volume: 7
Issue: 1
Start Page: 236
End Page: 245
Abstract: Activated carbons (ACs) were prepared from biomass of Borneo island (wood charcoal, peat, and coconut husk) by using an electricity-free furnace, of which the energy source was exclusively wood charcoal. This furnace was comprised of two parts, an inner vessel equipped with water inlet for steam activation and an outer shell as a heating part for the inner vessel. The inside temperature of the inner vessel was able to reach over 1000℃. Peat and wood charcoal were converted to AC by carbonization followed by steam activation, and the specific BET surface areas of resultant ACs were 889 m2/g and 749 m2/g, respectively. A mobile apparatus for water purification was newly designed and fabricated with the resultant AC, together with a white quartz sand, which is called keranggas in Kalimantan. The COD_[OH] of both polluted creek water by the University of Palangka Raya and Kahayan River water were remarkably decreased by the purification with the designed apparatus from 20.0 mgO/L to 0.93 mgO/L, and 18.2 mgO/L to 0.74 mgO/L, respectively. Thus, the newly designed furnace and purification apparatus were shown to be highly effective tools to produce a promising agent for water purification and to produce clarified water without use of electricity, respectively.
Type: article
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 浦木 康光

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