Flocculation of Fermented Broth with 1,3 -Propanediol
- VernacularTitle:1,3-丙二醇发酵液的絮凝预处理研究
- Author:
Fan-Feng LI
;
Yu-Jie ZHOU
;
De-Hua LIU
;
- Publication Type:Journal Article
- Keywords:
1, 3-Propanediol, Flocculation, Mocculant, Hectrodialysis.
- From:
Microbiology
1992;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Flocculation of fermented broth with 1,3 -propanediol using component B of natural clarifier-Ⅱ was studied. Firstly, single factor tests and orthogonal tests were carried out. The results showed the main factors which influenced the flocculation and the optimal conditions were: pH6.0, flocculant B 0.01g/L , NaCl 0g/L, and the FR was 95.97% . The following results by filtration experiments, compared with the sample without pretreatment, indicated that the filtration speed of the flocculated sample was improved dramatically, and the weights of net and dry filter cakes were increased by 41.13% and 51.88% , respectively. Electrodialysis experiments showed that flocculation could accelerate desalting process, and could take the place of centrifugal pretreatment when it combined with the filtration.
