混合菌浸出高磷赤铁矿的研究  

Research on Bioleaching of Phosphorus from Hematite with Mixed Bacteria

作　　者：黄腾[1] 龚文琪[1] 胡纯[1] 鲍光明[1] 李育彪[1] 

机构地区：[1]武汉理工大学资源与环境工程学院,武汉430070

出　　处：《武汉理工大学学报》2010年第13期90-92,126,共4页Journal of Wuhan University of Technology

基　　金：国家重点基础研究发展计划"973"项目(2004CB619204);国家"十一五"支撑计划项目(2007BAB15B01)

摘　　要：通过对嗜酸氧化硫硫杆菌(At.t)以及嗜酸氧化亚铁硫杆菌(At.f)进行不同比例的混合,发现其生长过程中pH值较原菌均有明显的下降,而通过Fe2+的氧化活性看出,在双底物培养基中,混合菌并不完全利用Fe2+作为其能源物质。对赤铁矿浸磷效果的研究发现,At.f与At.t按照1∶3混合后,其固相的浸磷率达到了74.85%,比At.f原菌提高了2倍多,可以看出混合菌能较显著提高浸磷率。Experiments with mixtures of different proportions of Acidithiobacillus thiooxidans（At.t） and Acidithiobacillus ferrooxidans（At.f） are carried out. The results indicate that the pH value of the culture solution dropped significantly than the original bacteria solution,while in the double substrate medium, mixed bacteria did not take full advantage of Fe^2＋ as part of its energy substances.The effect of bioleaching researches has shown that,when At.f is mixed with At.t in 1∶3,the leaching rate reaches 74.85%,more than 2 times of that with At.f alone.It can be seen that the mixture of the two bacteria can raise the leaching rate more significantly.

关 键 词：混合菌 生物湿法冶金 浸磷 

分 类 号：TF111.31[冶金工程—冶金物理化学]