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Effect of Additives on Electrical Resistivity of Pulp Black Liquor- Sawdust Blends

Unlike the large scale paper mills which use the pulp black liquor (PBL) for recovery of chemicals, the small and medium mills usually throw away the black liquor after pulping, leading to pollution problems. Furthermore, sawdust wastes (SDW) produced from factories leads to a big problem. The objective of this study is to determine the effect of natural binders (wax and starch) on the thermal conductivity and electrical resistivity of black liquor-sawdust composites. Surface analysis of samples was studied. Results from Cyclic voltammetry and electrochemical impedance spectroscopy techniques demonstrated that addition of starch and wax increases electrical resistivity of black liquor-sawdust composites.