Selective extraction of noble metals from solutions by microorganisms

被引：0
|
作者：
Karavaiko, GI
Zakharova, VI
Avakyan, ZA
Strizhko, LS
机构：
[1] RUSSIAN ACAD SCI,INST MICROBIOL,MOSCOW 117811,RUSSIA
[2] MOSCOW STEEL & ALLOYS INST,MOSCOW 117071,RUSSIA
来源：
APPLIED BIOCHEMISTRY AND MICROBIOLOGY | 1996年 / 32卷 / 05期
关键词：
D O I：
暂无
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Microfungi, yeasts, and actinomycetes extracted Ag and Au from model and industrial solutions. Strains producing antibiotics neomycin and gentamicin were most active in Ag extraction (95-97% of total dissolved Ag). Selective extraction of Au by biosorption on a biomass was found to be possible at pH < 2, if associated heavy metals (Cu and Ni) had to be removed. The biosorption efficiency of Aspergillus terreus, Rhizopus arrhizus, feed yeasts, and waste biomass of producers of neomycin, gentamicin, and ristomycin in Au extraction (94-98.8%) was comparable to that of activated carbon (98.8%).
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页码：507 / 510
页数：4
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