Characterization of bioflocculant MBF3-3 produced by an isolated Bacillus sp.

被引：0
作者：
Daolun L. Feng
Shihong H. Xu
机构：
[1] Shanghai Maritime University,College of Marine Environment and Security Engineering
[2] Donghua University,School of Environmental Science & Engineering
来源：
World Journal of Microbiology and Biotechnology | 2008年 / 24卷
关键词：
Bioflocculant; Flocculating properties;  sp.;
D O I：
暂无
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学科分类号：
摘要：
The characteristics of bioflocculant MBF3-3 produced by Bacillus sp. BF3-3 were investigated here. MBF3-3 showed excellent flocculating activity on real and synthetic wastewaters, and consumed a much lower dosage than that of the widely used polyaluminum chloride (PAC) when flocculating brewery wastewater. Except Fe3+, metal ions, including Al3+, Mg2+, Ca2+, K+ and Na+, can stimulate the flocculating activity of MBF3-3 obviously, and the stimulating effects increased in the order: monovalent < bivalent < trivalent. MBF3-3 was mainly composed of acidic polysaccharide (66.1%) and protein (29.3%), in which acidic polysaccharide was the main effective flocculating component. OH and COO– groups may play a vital role in the flocculation of suspended particles.
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