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产气肠杆菌(KLE-1)絮凝特性的研究
STUDY ON EFFICIENT BIOFLOCCULANT BY A KLEBSIELLA MOBILIS
【摘要】 从土壤中筛选出一株产生菌KLE1,经鉴定该菌株为产气肠杆菌(Klebsiellamobilis).利用乳品废水作为发酵培养基,该菌株产生多糖类微生物絮凝剂;Ca2+对该絮凝剂的助絮凝效果优于其它金属阳离子;采用红外扫描、zeta电位测定仪对絮凝机理进行研究,表明该絮凝剂主要以架桥作用为主.
【Abstract】 A strain was screened from soil, identified as Klebsiella mobilis.It produces bioflocculant from dairy wastewater, which is thought of as a cheaper medium. The test results of bioflocculant activity for KLE-1 show that the bioflocculant, which is of polysaccharide bioflocculant, has high efficient of Kaolin clay.Bioflocculant activity can be apparently improved when using calcium ion as the flocculant-aid. There is no question that bridging operates the particles of the suspension by the way of infrared spectrum and zeta-potential measurements.
【基金】 国家高技术发展计划(863计划)(2003AA601060);山东省环保局重点项目(项目编号:034812).
- 【文献出处】 环境化学 ,Environmental Chemistry , 编辑部邮箱 ,2005年02期
- 【分类号】X703
- 【被引频次】48
- 【下载频次】218