氧化亚铁硫杆菌生长过程铁的行为

来源期刊：中南大学学报(自然科学版)1998年第3期

论文作者：邱冠周 柳建设 王淀佐 徐竞

文章页码：25 - 27

关键词：氧化亚铁硫杆菌;铁;生长

Key words：thiobacillus ferrooxidans; iron; growth

摘    要：研究了氧化亚铁硫杆菌在9K培养基中生长及铁的行为.以Fe²⁺的氧化表征氧化亚铁硫杆菌的生长特性及其活性,表明生长繁殖过程经历诱导期、缓慢期、指数期、稳定期和衰亡期.氧化亚铁硫杆菌在生长繁殖过程中,不断地将Fe²⁺氧化为Fe³⁺,同时Fe³⁺又发生一系列的水解反应,并生成黄铵铁矾沉淀.Fe²⁺的细菌氧化主要以O₂为最终的电子受体.

Abstract: The iron behaviour in growth of thiobacillus ferrooxidans in 9K medium has been investigated. The growth characteristic and activity of thiobacillus ferrooxidans can be expressed by the oxidation of Fe²⁺ in inoculum. It is indicated that the growth and breed of thiobacillus ferrooxidans pass through inductive period, lag period, exponential period, stationary period and death period. In these processes Fe²⁺ in solution are gradually oxidized to Fe³⁺, together with a series of hydrolytic reactions, a part of Fe³⁺ forms jarosite-type precipitate. O₂ is the ultimate electron recipient during the oxidation of Fe²⁺.