摘要
采用微波辐照对氧化亚铁硫杆菌进行诱变,并利用诱变菌在黄铁矿存在条件下从磷矿粉中浸出可溶性磷。结果表明:800 W微波辐照功率条件下(处理4 min),氧化亚铁硫杆菌浸磷的效果较佳,磷的浸出率达12.25%,比原菌提高了52.74%。通过微波诱变可提高氧化亚铁硫杆菌的氧化活性和产酸量,从而增强磷矿粉中可溶性磷的浸出效果。
Bioleaching of soluble phosphate from phosphate rock with acidithiohacillos ferrooxidans mutated with microwave under existing of pyrites was investigated. The results showed that the highest leaching rate of phosphate , 12.25%, which was 52.74% higher than that of phosphate mutated with original acidithiobacillus ferrooxidans, was obtained by leaching with acidithiohaeiUus ferrooxiclans with higher oxidative activity mutated by microwave of 800W for 4 minutes. The oxidative activity and amount of producing acid of acidithiobacillus ferrooxidans could be improved by microwave mutation, and the leaching rate of soluble phosphate from phosphate rock could be increased.
出处
《化工矿物与加工》
CAS
北大核心
2008年第3期1-4,共4页
Industrial Minerals & Processing
基金
湖北省教育厅科技研究重大项目基金资助(Z200515002)
关键词
微波诱变
氧化亚铁硫杆菌
生物浸出
可溶性磷
mutation with microwave
acidithiobacillus ferrooxidarts
bioleaching
soluble phosphate