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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 14, No. 1, 2010, pp. 55-58
Bioline Code: ja10009
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 14, No. 1, 2010, pp. 55-58

 en Proximate composition of some agricultural wastes in Nigeria and their potential use in activated carbon production
Adeyi, Oladayo


The proximate composition of five agricultural wastes were determined and latter subjected to low temperature conversion process in the presence of nitrogen atmosphere.These agricultural wastes are Cocos nucifera check for this species in other resources husk, Theobroma cacao check for this species in other resources pod, Kola nitida check for this species in other resources pods and Plantago major check for this species in other resources peels(ripe and unripe peels). All the samples investigated have different intrinsic proximate compositions which affect the yields of their respective chars. Out of the sample investigated, Cocos nucifera husk recorded the lowest bulk density (0.0746g/cm3), ash content(3.95%),cellulose contents(0.52%) and has the lowest char yields.On the other hand ,Theobroma cacao pods recorded the highest cellulose content(41.92%),ash contents(12.67%), crude fiber content(33.60%) and has appreciably high char yields. The lignin contents of samples fell in the range of (6.06%-33.60%).The percentages of chars obtained after conversion at 420°C for each of the precursors were relatively lower to those obtained at 360°C.The percentage yield for all the samples fell within the range of 46 - 64% for 360°C and 43 - 58% for 420°C. Hence,because of their high carbon yields and their inherent compositions ,they can serve as precursors for activated carbon production. @ JASEM

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