September 2013

Production of biolubricant from Jatropha curcas seed oil

Extracted Jatropha oil was analyzed for their chemical and physical properties such as density, acid value, % FFA, saponification value as well as viscosities at 40 and 100oC and viscosity index. The result of the analyses of the Jatropha oil reveals that it has a very high %FFA (14.6%). Reduction was achieved by esterification with methanol (to 0.44%). The method employed for the production of biolubricant...

Author(s): Bilal S, Mohammed-Dabo I. A, Nuhu M, Kasim, S. A, Almustapha I. H and Yamusa Y. A         

September 2013

BOD5 removal from tannery wastewater over ZnO-ZnFe2O4 composite photocatalyst supported on activated carbon

Tannery wastewater with high biological oxygen demand (BOD5) was treated with ZnO-ZnFe2O4composite photocatalyst supported on activated carbon under visible light irradiation. Only 9% of BOD5 in the raw effluent were removed via adsorption on the surface of the photocatalyst in the dark for two hours. Photocatalysis with ZnO-ZnFe2O4 composite photocatalyst on activated carbon support removed 90% of...

Author(s): H. A. Mohammed, A. Hamza, I. K. Adamu, A. Ejila, S. M. Waziri and S. I. Mustapha