Advanced Materials Research Vol. 322

Abstract: The optimal conditions of production of flocculant by the culture of Flavobacterium sp. were examined, using molasses wastewater to replace glucose as carbon source and energy source in the culture medium. Results showed that the COD concentration in molasses wastewater favorable for the growth of the Flavobacterium sp. was 5000 mg•L^-1, and inoculum size of 5%(v/v), 30°C, initial pH 7.0 and shaking speed of 150 r•min^-1, under the optimal culture conditions, the highest flocculating activity achieved for Kaolin suspension was 95.0% and 4.0 g biomass /L broth was obtained. The Flavobacterium sp. biomass was effective in flocculating some soluble reactive dyes in aqueous solution, reactive Light-Yellow K-4G with a decolorization efficiency of 98.5, using 20 mL of the flocculant in 500 mL of 100 mg•L^-1 dye solution.

Abstract: In order to understand the influence of the blended ratio of the soybean protein fibers to the properties of blended fabrics, five soybean protein fiber/modal blended fabrics are knitted and tested. By the analysis of the results, the relationship between the properties of the blended fabrics and the blended ratio of the soybean protein fibers are obtained. With the increase of the ratio of the soybean protein fibers, the tensile strength and the elongation of the blended fabrics increase and the tearing strength and bursting strength of the fabric decrease. With the increase of the ratio of soybean protein fibers, the softness increases and the bending length, abrasion resistance of the knitted fabrics decrease.