氧化亚铁硫杆菌生长特性的研究  

Study on growth characteristics of desulfurization microognism

作　　者：李茹[1] 张书平[1] 崔心水[1] 缪纬 张丹 王美超[1] 张亚楠[1] 

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048 [2]五环集团股份有限公司能源动力处,陕西西安710038 [3]陕西省辐射环境监督管理处,陕西西安710048

出　　处：《西安工程大学学报》2008年第6期733-736,共4页Journal of Xi’an Polytechnic University

基　　金：陕西省教育厅专项科研计划项目(07JK250)

摘　　要：采用单因素实验研究实验室分离的氧化亚铁硫杆菌的生长特性.通过测定培养过程中吸光度、Fe2+浓度和总Fe浓度的变化,计算Fe2+氧化速率,研究初始pH值、初始接种量和温度对细菌生长的影响.结果发现,该氧化亚铁硫杆菌在接种初期,生长缓慢,对Fe2+的氧化速度较慢,12h后繁殖速度加快,氧化速率开始增加,27h后对Fe2+的氧化速率达最大值0.52g/(L.h),30h后Fe2+转化率接近100%;适宜于该氧化亚铁硫杆菌生长和代谢的初始pH值为2.30,接种量为10%,培养温度为28℃.By using single factor test ,the growth behavior of Thiobacillus ferrooxidan （T. f. ） preserved in the lab is studied. By monitoring absorbency, pH, ferrous iron concentration and total iron concen- tration and calculating ferrous iron oxidation rate, the influences of initial ferrous iron concentration, ini- tial pH , initial inoculation and temperature on the growth of T. f. are investigated. The results indicate that T.f. grows slowly and the oxidation rate is very low in the initial period of inoculation, after 12 hours oxidation rate begins to grow up, and the highest oxidation rate 0.52g/（L · h） is achieved after 27 hours, and when the time up to 30 hours, conversion rate of Fe2＋ closes to 100%;The proper conditions for T. f. to grow and metabolism are 28℃ ,pH 2.30 and inoculation amount 10%.

关 键 词：氧化亚铁硫杆菌 生长特性 生物脱硫 

分 类 号：X172[环境科学与工程—环境科学]