Studies on Diffusion Properties of Alginate Gel Entrapped with Thiobacillus ferrooxidans Cells
- VernacularTitle:包埋氧化亚铁硫杆菌的海藻酸钙凝胶扩散特性研究
- Author:
Shao-Xia XU
;
Yong-Kui ZHANG
;
Hai XIANG
;
Ning CHEN
;
Ying LIANG
;
Ya-Jie HUANG
;
- Publication Type:Journal Article
- Keywords:
Alginate calcium Thiobacillus ferrooxidans Entrapped Diffusion
- From:
China Biotechnology
2006;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
By non-steady method,the effective diffusivity of ferrous sulphate within alginate calcium gel entrapped without bacteria was measured.Meanwhile the oxidation ability of entrapped bacteria was analyzed.Experimental results showed that the effective diffusion coefficient of ferrous sulphate decreased with the increase of alginate concentration,the optimum alginate concentration is 2%(W/V).The effect of calcium chloride on the effective diffusivity was neglectable.The incubation of ferrooxidans would pass through 10 hours,and the diffusion coefficient within gel entrapped Thiobacillus ferrooxidans cells was less remarkably than that of ferrous sulphate without entrapped cells.For the entrapped cells,the absolute oxidation time was shortest and the rate change was fastest with the initial Fe concentration 5g/L.The absolute oxidation time was same when the initial Fe concentration was 8g/L and 10g/L.
