Wednesday, 14 September 2016

ELECTRICITY-FREE PRODUCTION OF ACTIVATED CARBON FROM BIOMASS IN BORNEO TO IMPROVE WATER QUALITY

Author
Masato Ogawa, Teuku Beuna Bardant, Yasutaka Sasaki, Yutaka Tamai, Seiichi Tokura, Yasumitsu Uraki

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 oC. 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 CODOH 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.

Keywords


Activated carbon; Chemical oxygen demand (COD); Electric-free mobile furnace; Biomass in Borneo Island; Peat soil

Full Text: PDF

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For further details log on website :
http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_07_1_0236_Ogawa_BSTTU_ElectricityFree_Act_C_Borneo

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