标题：SCREENING OF FLOCCULANT-PRODUCING MICROORGANISMS AND SOME CHARACTERISTICS OF FLOCCULANTS
作者：WANG, Z; WANG, KX; XIE, YM
作者机构：[WANG, Z; WANG, KX; XIE, YM]ACAD SINICA,WUHAN INST VIROL,WUHAN 430071,PEOPLES R CHINA.
通讯作者地址：[WANG, Z]SHANDONG UNIV,DEPT MICROBIOL,SHANDONG 250100,PEOPLES R CHINA.
摘要：27 strains of microorganisms including moulds, bacteria, actinomyces and yeasts, which produced substances that flocculated a kaolin clay, were screened. One strain, identified as Arthrobacter sp., secreted bioflocculant during growth. The flocculant (MF-6) was purified to electrophoretic homogeneity by precipitation with ethanol and gel chromatography. Its molecular weight was higher than 10(6) Da. It could efficiently flocculate all suspended solids tested in aqueous solution and colored water like dyesolution, and its flocculating ability was significantly enhanced by adding Ca2+, Mn2+, Mg2+, etc.