两株不同铁氧化细菌合成的沉淀差异性分析  

Discrepant analysis of iron precipitate synthesized by two strains of different iron-oxidizing bacteria

作　　者：高健[1] 彭宏[1] 李邦梅[1] 吴学玲[1] 丁建南[1] 邱冠周[1] 

机构地区：[1]中南大学资源加工与生物工程学院

出　　处：《中国有色金属学报》2007年第3期453-458,共6页The Chinese Journal of Nonferrous Metals

基　　金：国家自然科学基金创新研究群体科学基金资助项目(50321402);国家重点基础研究发展规划资助项目(2004CB619201)

摘　　要：通过ICP-AES、SEM、XRD和FTIR等方法,对不同铁氧化细菌在不同温度条件下所合成的赭黄色高铁沉淀进行了分析。结果表明:无论是嗜铁钩端螺旋菌DY菌株(Leptospirillum ferriphium),还是嗜酸氧化亚铁硫杆菌GF菌株(Acidithiobacillus ferrooxidans)合成的沉淀都是黄钾铁矾和黄铵铁矾的混合物;其中,GF合成的沉淀混合物中黄钾铁矾的含量比DY合成的黄钾铁矾约高出5.53%;而DY合成的沉淀中,黄铵铁矾的含量比GF合成的沉淀中的黄铵铁矾的含量约高出15.24%。The yellow ochre-colored iron precipitates synthesized by two strains of different iron-oxidizing bacteria at different temperatures were analyzed by using ICP-AES, SEM, XRD and FTLR. The results indicate that both the precipitates produced by Leptospirillumferriphium strain DY and Acidithiobacillusferrooxidans strain GF are composed ofjarosite and ammonium jarosite. However, the content ofjarosite in the precipitates synthesized by strain GF is 5.53% higher than that synthesized by strain DY, but the content of ammonium jarosite in the precipitates synthesized by strain DY is 15.24% higher than that synthesized by strain GF.

关 键 词：黄钾铁矾 黄铵铁矾 嗜铁钩端螺旋菌 嗜酸氧化亚铁硫杆菌 沉淀 

分 类 号：TF646[冶金工程—钢铁冶金] O657.3[理学—分析化学]