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Acidithiobacillus albertensis BY-05, an acidophilic sulfur-oxidizing bacterium, were investigated. The results indicate that both surfactants can enhance the growth and sulfur-oxidizing activities... of flotation reagents to moderately thermophilic bioleaching microorganisms had been reported[15]. However, little is known about the improvement by these chemicals to the growth and sulfur-oxidizing......
索[J]. 稀有金属, 2002, 26(3): 210?213.XU Xiao-chun, SUN Xue-nan, RUAN Ren-man, CHE Xiao-kui. Strategy for isolating moderately thermophilic and acidophilic bioleaching bacterium[J]. Chinese Journal of Rare...?136. [10] OKIBE N, JOHNSON D B. Biooxidation of pyrite by defined mixed cultures of moderately thermophilic acidophiles in pH-controlled bioreactors: Significance of microbial interactions [OL]. http......
thickness; Mindlin moderately plate theory; transverse and flexural vibration model; resonant frequencies of vibration......
2010; accepted 21 October 2010 Abstract: The bioleaching of molybdenum from its sulfide ore using a Mo-resistant thermophilic bacterium sulfolobus metallics combined with a membrane biological... concentration. In this work, the bioleaching of nickel-molybdenum sulfide ore by the sulfolobus metallics in a membrane bioreator system is studied. Sulfolobus metallics is a thermophilic bacterium that can defy......
, Central South University, Changsha 410083, China Received 3 April 2017; accepted 7 November 2017 Abstract: The bioleaching of bornite with mixed moderately thermophilic culture at 50 °C was investigated... to leach metal sulfides with high efficiency [7,22-25]. Therefore, the aim of this study is to evaluate the bornite bioleaching by employing a mixed moderately thermophilic culture. The intermediary......
bar; anti-floating anchor; shear stress; axial stress; numerical simulation; moderately weathered granite 锚杆具有单点受力小,施工简便,成本低等优点[1-3],因此,被越来越多地应用于解决建(构)筑物施工过程中的基坑支护,基础底板抗浮等问题.抗浮锚杆就是用于处理底板抗浮问题的一类锚杆.由于地下... parameters of moderately weathered granite 表2 GFRP筋锚杆试验参数 Table 2 Test parameters of GFRP anchor 试验时,锚杆孔径为110 mm,孔深3.5 m,锚固介质选用水泥砂浆,强度等级为M30.采用逐级单调加载的方式施加荷载,GFRP筋抗浮锚杆和钢筋抗浮锚杆每级施加的荷载分别为50 kN和40 kN,加载......
. [9] Johnson D B, GHAURI M A, SAID M F. Isolation and characterization of an acidophilic, heterotrophic bacterium capable of oxidizing ferrous iron [J]. Applied and Environmental Microbiology, 1992... [J]. International Journal of Systematic and Evolutionary Microbiology, 1998, 48(4): 1389-1398. [17] OKIBE N, JOHNSON D B. Biooxidation of pyrite by defined mixed cultures of moderately thermophilic......
oxidizing ability. Moderately thermophilic A. caldus[25] attracted much attention recently for the apparently arsenic resistance[26] and potential of enhancing bioleaching rate at 45-50 ℃. Study... a novel extremely thermophilic mixed culture [J]. Int J Min Processing, 2002, 66(1): 107-119. [14] STOTT M B, SUTTON D C. Comparative leaching of chalcopyrite by selected Acidophilic Bacteria and Archaea......
cellular yields [J]. Journal of Bacteriology, 1959, 77: 642-647. [13] OKIBE N, JOHNSON D B. Toxicity of flotation reagents to moderately thermophilic bioleaching microorganisms [J]. Biotechnology... Abstract: A defined mesophilic consortium including an iron oxidizing bacterium and a sulfur oxidizing bacterium was constructed to evaluate its ability for bioleaching a flotation concentrate from......
solid medium for growing mesophilic and moderately thermophilic, iron-oxidizing, acidophilic bacteria[J]. Microbiol Methods, 1991, 13(7): 113-122. [13] HARRISON J. A P. The acidophilic thiobacilli... electron microscope (TEM). The result of 16S rDNA identification shows that this bacterium belongs to Leptospirillum ferriphilum and it is named as Leptospirillum ferriphilum strain D1. These results......
