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高效絮凝剂产生菌的筛选、鉴定及培养条件优化
Screening of a Flocculangproducing Strain and Optimization of Its Culture Conditions
【摘要】 从实验室好氧活性污泥中分离出 1株高效絮凝剂产生菌株 ,鉴定为新月弯孢霉 ,命名为M -2 6.首次发现了新月弯孢霉可产生微生物絮凝剂 .通过设计正交实验找出其影响因素的重要性顺序及较佳的培养条件 .实验结果表明 ,该菌株在高氏培养基 ,初始pH值为 7.0 ,转速为 2 0 0r min和水浴温度为 3 5℃的条件下能产生高效絮凝剂 ,对高岭土悬浊液的絮凝率达到 97%以上
【Abstract】 A strain of microorganism named M-26 which produced flocculating material was isolated from activated sludge. Through orthogonal test, the optimum culture conditions were found to be primary pH 7.0, 35 ℃, 200 r/min,cultivated for 3 days in flakes. The strain produced a strong-activating flocculant with flocculating rate of above 97 % against Kaolin clay suspension.
【关键词】 微生物絮凝剂;
新月弯孢霉;
筛选;
鉴定;
培养条件;
【Key words】 microbial flocculant; screening; identification; culture conditions;
【Key words】 microbial flocculant; screening; identification; culture conditions;
【基金】 湖南省计委资助项目 ;湘潭大学学生创新创业基金资助项目 (97HKW 0 3 )
- 【文献出处】 湘潭大学自然科学学报 ,Natural Science Journal of Xiangtan University , 编辑部邮箱 ,2003年01期
- 【分类号】X172
- 【被引频次】36
- 【下载频次】187