山西农业大学学报（自然科学版）2011，Vol.31Issue(2)：188-192,5.
絮凝剂产生菌的筛选鉴定及其在废水处理中的应用
Screening and Identifying of Flocculent-producing Strain and Application for Wastewater Treatment
摘要
Abstract
The strain of high-efficiency bioflocculant-producting bacteria, which was named Be-3 , was screened from the sludge, in order to get the highest flocculating activities and make full use of the flocculent, their characteristics and optimal culturing condltion were studied in the paper. The results of the experiment showed that the optimal culturing condition was as follows: the carbon source was the composition of lOg · L-1 cane sugar and lO g · L-1 lactose, the nitrogen source was the composition of 0.5 g · L-1 urea, 0. 2 g · L-1 yeast extract and 0. 5 g · L-1 potassium nitrate,the inorganic salt was the composition of 2 g · L-1 potassium dihydrogen phosphate, 5 g · L-1 potaSSlum phosphate dibasic and O. 1 g · L-1 sodium chloride. When the Be-3 was cultured at 30 ℃ wirh the initial pH being 6. 5 and the rotation speed-140 r · min-1 for 42 h. the flocculating activities achieved 98. 04 ％ , the strain was gram- positive, and the main components of flocculants was polysaccharide in physiological biochemical test. When the strain was applied to wastewater treatment, the removal rate of CODcr,NH3-N and turbidity were comparatively good. The results suggested that the strain had good application prospect in pracrice.关键词
微生物絮凝剂/优化/絮凝率/污水处理Key words
Microbial flocculent / Optimization / Flocculating activity / Wastewater treatment分类
资源环境引用本文复制引用
罗平,智芳芳,黄锃峰,贺蛟..絮凝剂产生菌的筛选鉴定及其在废水处理中的应用[J].山西农业大学学报（自然科学版）,2011,31(2):188-192,5.基金项目
重庆自然科学基金项目(CSTC,2008BB7180) （CSTC,2008BB7180）
