研究了从紫金山铜矿生物堆浸矿堆中分离到的浸矿微生物,在不同的初始培养基pH(1.0～3.0)下的活性和在不同初始培养基pH(1.4～4.5)下对紫金山硫化铜矿石的浸出规律.结果表明,生长稳定后初始pH值小于1.8的溶液的pH值稳定在1.6左右,而初始pH值大于2.2的溶液的pH值稳定在1.9左右.而不同初始pH(1.4～4.5)的浸矿实验表明,适于该浸矿微生物浸矿的最佳pH值在1.8～2.3之间,最终矿浆电位与铜的浸出率存在一定的线性关系.
参考文献
| [1] | Rawlings DE;Dew D;du Plessis C .Biomineralization of metal-containing ores and concentrates.[J].Trends in Biotechnology,2003(1):38-44. |
| [2] | 温建康,阮仁满,陈景河,吴健辉.紫金山铜矿生物堆浸提铜酸铁平衡工艺研究[J].稀有金属,2006(05):661-665. |
| [3] | Henry L. Ehrlich .Past, present and future of biohydrometallurgy[J].Hydrometallurgy,2001(2/3):127-134. |
| [4] | Rawlings D E .Characteristics and adaptability of iron-and sulfur-oxidizing microorganisms used for the recovery of metals from minerals and their concentrates[J].Microbial Cell Factories,2005,4(01):13. |
| [5] | Yoshishige Kawabe;Chihiro Inoue;Koichi Suto;Tadashi Chida .Inhibitory Effect of High Concentrations of Ferric Ions on the Activity of Acidithiobacillus ferrooxidans[J].Journal of Bioscience and Bioengineering,2003(4):375-379. |
| [6] | Mousavi SM;Yaghmaei S;Vossoughi M;Roostaazad R;Jafari A;Ebrahimi M;Chabok OH;Turunen I .The effects of Fe(II) and Fe(III) concentration and initial pH on microbial leaching of low-grade sphalerite ore in a column reactor[J].Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies,2008(8):2840-2845. |
| [7] | Franzmann P D;Haddad C M;Hawkes R B;Robertsona W J,Plumba J J .Effects of temperature on the rates of iron and sulfur oxidation by selected bioleaching Bacteria and Archaea:application of the Ratkowsky equation[J].Minerals Engineering,2005,18:1304. |
| [8] | Muqing Qiu,Genxuan Wang,Weimin Zhang,Shuiying Xiong.Optimizing conditions for bacterial leaching of copper from discarded mines[J].北京科技大学学报（英文版）,2006(02):108-111. |
| [9] | 刘美林,阮仁满,温建康,王淀佐.细菌对铜矿生物浸出液粘度的影响研究[J].稀有金属,2007(05):677-681. |
| [10] | R. Naresh Kumar;R. Nagendran .Influence of initial pH on bioleaching of heavy metals from contaminated soil employing indigenous Acidithiobacillus thiooxidans[J].Chemosphere: Environmental toxicology and risk assessment,2007(9):1775-1781. |
| [11] | Ahonen L;Tuovinen O H .Bacterial leaching of complex sulfide ore samples in bench-scale column reactors[J].Hydrometallurgy,1995,37(01):1. |
| [12] | LIU Jian-she,LI Bang-mei,ZHONG De-yi,XIA Le-xian,QIU Guan-zhou.Preparation of jarosite by Acidithiobacillus ferrooxidans oxidation[J].中南工业大学学报（英文版）,2007(05):623-628. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%