摘要
采用常规分离方法对采集样品进行微生物分离,通过分析分离菌株对高岭土悬液的絮凝效果,筛选出4株具有高生物絮凝活性的菌株,其中菌株X1801的絮凝率可达98.56%。采用形态学特征、生理生化方法和16S rDNA基因序列比对方法对该菌株进行分析,鉴定该菌株为简单芽孢杆菌(Bacillus simplex),菌株应用于污水处理表现出较强絮凝活性。
This study focus on the bacterial screened from different samples by means of common bacteria screening and purification method. Based on the effect of kaolin suspending liquid test, 4 strains were obtained. The flocculating rate of strain X1801 reached98.56%. According to morphological characteristics, physiochemical test and 16 S rDNA gene sequence analysis, strain X1801 was identified as Bacillus simplex, and it showed significant flocculation effect on the wastewater treatment.
出处
《天津农业科学》
CAS
2015年第12期24-28,共5页
Tianjin Agricultural Sciences
基金
天津市农业科学院院长基金(11007)
关键词
农村污水
絮凝菌株
16S
RDNA
絮凝特性
rural wastewater
bio-flocculation strain
16S rDNA
flocculation characteristic
