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含砷金矿细菌预处理过程动力学的初步研究
毛在砂; 栾美琅; 李小平
1996
Source Publication化工学报
Issue02Pages:239-243
Other AbstractThe paper presents a preliminary analysis of the kinetics of bacterial pretreatment of arsenical gold ore concentrate from Banbishan,Hebei.The batchwise bioprocessing of the concentrates was carried out in a 10L gas-lift loop reactor with 1 kg load using a mixed strain of Thiobacillus ferrooxidans and Thiobacillus thiooxidans.The level of dearsenication reached above 80% in 5 days of leaching.Comparison of the modelling with experimental data on dearsenication indicates that the bacterial growth can be described by the Monod equation,and modification is also necessary to reflect the inhibition due to the accumulated arsenic in the leaching solution.The leaching of arsenic and iron may be approached with the shrinking-core model,and the dearsenication rate seems to be limited by intraparticle diffusion of Fe~(3+) iron when the mechanism of indirect oxidation of arsenopyrite during bacterial pretreatment is assumed.
Keyword动力学 脱砷 细菌氧化 含砷金矿
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/7766
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
毛在砂,栾美琅,李小平. 含砷金矿细菌预处理过程动力学的初步研究[J]. 化工学报,1996(02):239-243.
APA 毛在砂,栾美琅,&李小平.(1996).含砷金矿细菌预处理过程动力学的初步研究.化工学报(02),239-243.
MLA 毛在砂,et al."含砷金矿细菌预处理过程动力学的初步研究".化工学报 .02(1996):239-243.
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