May 2013

Optimum design parameter determination of biogas digester using human faeces feedstock

  Biogas digester operation depends majorly on C/N ratio, hydraulic retention time, pH, temperature, and mixing ratio of the domestic waste used. Temperature of 15 to 45°C, C/N ratio of 20 to 30, Hydraulic retention time of 1 to 30 days, mixing ratio of 10 to 20 %w/v and pH of 6.5 to 8 were considered for the analysis. Analysis of Variance (ANOVA) was used to test whether there are statistically significant...

Author(s):   Nuhu M., Mujahid M.M, Aminu A. Hamisu, Abbas A. J, Babangida D., Tsunatu D., Aminu Y. Z, Mustapha Y., Ahmed I and Onukak I. E

May 2013

Low temperature synthesis of nickel silica nanocomposites through Sol-gel route

  Preparation of nickel (Ni) nanoparticles in the silica gel matrix for various concentrations has been achieved at low temperature. The presence of metallic Ni has been confirmed by x-ray diffraction and further supported by the presence of bright filed transmission electron microscope image, which shows presence of 5 to 8 nm diameter nanoparticles. The dielectric property was studied using complex...

Author(s): S. Dutta, S. Bose, C. K. Ghosh and G. C. Das