Using Ruditapes philippinarum conglutination mud to produce bioflocculant and its applications in wastewater treatment
作者： Qi Gao , Xiu-Hua Zhu , Jun Mu , Yi Zhang , Xue-Wei Dong
DOI: 10.1016/J.BIORTECH.2009.05.035
关键词:
摘要: A novel bioflocculant-producing bacterium, ZHT4-13, was isolated from Ruditapes philippinarum conglutination mud. By biomicroscope morphological observation, 16S rDNA sequence identification and physiological biochemical characteristics, strain ZHT4-13 identified as Rothia sp. The bioflocculant MBF4-13 produced by had a flocculating efficiency of 86.22% for 5 g L(-1) Kaolin clay suspension when the initial pH 9 temperature 20 degrees C. It effect in wide range, 1-13 4-100 Analysis UV-Vis spectrophotometer, Fourier-transform infrared spectrophotometer (FT-IR) (1)H nuclear magnetic resonance (NMR) indicated that main component is polysaccharide. culture conditions to produce were optimized with orthogonal design experiments. high decolorizing dye solutions, some abilities remove heavy metal ions (Cr(2)O(7)(2-), Ni(2+)) improve performance activated sludge.
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