Screen of a Bio-flocculants-producing Strain and Study on Flocculating Activity
- VernacularTitle:一株生物絮凝剂产生菌的筛选及絮凝活性研究
- Author:
Guohui WANG
- Publication Type:Journal Article
- Keywords:
Flocculant-producing microorganisms,Microbial flocculants, Flocculating activity
- From:
Microbiology
1992;0(05):-
- CountryChina
- Language:Chinese
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Abstract:
A strain,WJ-100, with high flocculating activity was screened from activated sludge.Its optimum pH was 6.5 and optimum temperature was 25℃～40℃.Its shaking speed was in the range of 80～240 r/min. Na~ + ,K~ + ,Ca~ 2 + and Fe~ 3+ could accelerate flocculation .Ca~ 2+ did the most obviously.WJ-100 can use various saccharides as good sources of carbon,the flocculating rate reached 99.2%,99.8%,even 100%.The strain could flocculate very well when pH of Kaolin clay suspension was 2.0～10.0.WJ-100 had high flocculation efficiency in the conditions of relatively large pH value, temperature, sources of carbon, shaking speed, mixing speed etc.and showed fine resaerch and application importance.
