Analysis on Flocculation Characteristics of Bioflocculant-producting Bacteria TJ-3
- VernacularTitle:高效微生物絮凝剂产生菌TJ-3的絮凝特性分析
- Author:
Xue NING
;
Yu-Guang CHANG
;
Xi-Ming DING
;
Si-Qing XIA
;
- Publication Type:Journal Article
- Keywords:
Bioflocculant,Flocculating rate,Kaolin suspension,Growth curve,16S rDNA
- From:
Microbiology
1992;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
A strain of high-efficiency bioflocculant-producting bacteria,which was named TJ-3,was screened from sewage sludge.The strain was gram-negative and rod-shaped in physiological biochemical test and was identified as Pseudomonas aeruginosa by 16S rDNA Sequencing.According to the growth curve of the TJ-3 strain,the growth stabilization period is long so that Microbial Flocculants(MBF) production is stable.The MBF produced by the TJ-3 strain is able to flocculante kaolin suspension with 98.2%.The MBF activity distribution tests show that most of the active components of the bioflocculant exist in deposition after centrifufation.When pH is 8.5,1%(quality fraction) CaCl2 Solution dosing quantity is 3.5 mL,bioflocculant dosing quantity is 1.5 mL in 100 mL kaolin suspension,the bioflocculant has an optimal flocculation.
