摘要
从活性污泥中分离出45株菌株,以发酵液对高岭土悬浮液絮凝效果为指标,筛选出1株高效絮凝剂产生菌,絮凝率达83.43%。该菌在实验室培养条件下,以pH值在7.0左右、温度在60℃左右时絮凝效果最好,少量的Ca2+可提高絮凝率;采用水提—丙酮沉淀—真空干燥的工艺,最终从发酵液中得到粗制干品。
A strain was isolated from activated sludge among 45 strains in accordance with the flocculating activity of fermentation liquors to Kaolin clay suspension, and its flocculating efficiency achieved 83.43%. Result shows that a good flocculation effect was found at the condition of 60 degrees C and pH 7.0. Adding a small amount of Ca^2＋ to wastewater could also increase the flocculation ability. Dry products were obtained from culture broth by water extraction, acetone sediment and vacuum dry.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2008年第2期63-64,共2页
Journal of Northeast Forestry University
关键词
微生物絮凝剂
絮凝率
絮凝剂产生菌
絮凝条件
Bioflocculant
Flocculating efficiency
Flocculant-producing bacterium
Flocculating conditions
