2.  Factors Affecting the Performances of Biomass Anaerobic Digestion Process

Authors: A.E. Cioabla, G.A. Dumitrel and D. Tucu


Abstract:

The effect of heavy metals and light metals ions on anaerobic digestion of three agricultural biomasses (two row barley, wheat bran and a mixture of 75 % corn kernels and 25 % corncobs) was investigated in this study. The raw materials were characterized from physico-chemical point of view and their heavy metals content (copper, chromium, nickel, lead and zinc) and light metals ions content (potassium, magnesium, calcium and aluminum) was measured. The effects of these substances on the anaerobic activity were analyzed by measurements of cumulative biogas production and the methane content of the obtained biogas.


Keywords: biomass, anaerobic digestion, heavy metals

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