Abstract

Biomass material is a kind of environmental protection material, which can be applied to reduce pollution in the leather industry. In this research, biomass raw materials (waste rice stalks) were solid fermented by inoculating with appropriate strains to produce itaconic acid products. The itaconic acid products and traditional leather chemicals were used respectively in leather processing. Two types of leather were tested, namely upper leather and split leather. The fullness and thickness of the finished leathers, also the COD (Chemical Oxygen Demand), BOD (Biochemical Oxygen Demand) and SS (suspended solids) of the residual liquids were tested and compared. The results show that the itaconic acid products could improve the fullness of the finished leather and more importantly could reduce the pollutants of the residual liquids thus enhancing environmental benefits.