BIOFLOTATION OF SULFIDE MINERALS IN THE PRESENCE OF HETEROTROPHIC AND CHEMOLITHOTROPHIC BACTERIA

机译：嗜异性和化学营养菌存在下的硫化物矿物的双浮选

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Hitherto only chemolithotrophs like Thiobacillus ferrooxidans has been used for biobeneficiation studies of sulfide minerals, and in this paper, the results obtained with chemolithotrophs (Thiobacillus ferrooxidans) and heterotrophs (Paenibacillus polymyxa) bacteria on the flotation response of chalcopyrite and pyrite minerals have been compared. Pure strains of Thiobacillus ferrooxidans and Paenibacillus polymyxa along with mineral adapted strains were used to bring about surface chemical changes of pyrite and chalcopyrite, and thus in their flotation behavior. The surface chemical properties of bacteria are evaluated by electrokinetic and infrared spectroscopy studies and discussed with reference to their flotation responses. In the presence of Thiobacillus ferrooxidans and chalcopyrite adapted Paenibacillus polymyxa cells, xanthate flotation of pyrite is depressed whereas chalcopyrite flotation is unaffected. The present investigation demonstrates that the surface chemical properties of bacteria can be manipulated successfully to achieve desired effect in flotation process.

机译：迄今为止，仅将化石营养菌如铁氧化硫杆菌（Thiobacillus ferrooxidans）用于硫化物矿物的生物选矿研究，并且在本文中，已比较了化石营养菌（Throbacillus ferrooxidans）和异养菌（Paenibacillus polymyxa）细菌对黄铜矿和黄铁矿矿物浮选反应的结果。使用纯氧化亚铁硫杆菌和多粘芽孢杆菌菌株以及适应矿物的菌株来引起黄铁矿和黄铜矿的表面化学变化，从而改变其浮选行为。细菌的表面化学性质通过电动和红外光谱研究进行评估，并根据其浮选反应进行讨论。在氧化亚铁硫杆菌和黄铜矿适应的多粘芽孢杆菌细胞的存在下，黄铁矿的黄药黄铁矿浮选受到抑制，而黄铜矿的浮选不受影响。本研究表明，细菌的表面化学性质可以成功地控制，以在浮选过程中实现所需的效果。

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《XXI International Mineral Processing Congress》|2000年|p.8a.94-a.103|共10页
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作者
P. K. Sharma; K. Hanumantha Rao; K.A. Natarajan; K.S.E. Forssberg;
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中图分类地质学;
关键词
bioflotation; thiobacillus ferrooxidans; paenibacillus polymyxa; sulfide minerals; zeta-potential; FT-IR;

机译：生物浮选氧化亚铁硫杆菌多粘芽孢杆菌硫化矿物; ζ电位红外光谱;

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1. Production of Glycolic Acid by Chemolithotrophic Iron- and Sulfur-Oxidizing Bacteria and Its Role in Delineating and Sustaining Acidophilic Sulfide Mineral-Oxidizing Consortia [J] . Ivan ?ancucheo, D. Barrie Johnson Applied and Environmental Microbiology . 2010,第2期

机译：化营养的铁和硫氧化细菌生产乙醇酸及其在勾勒和维持嗜酸性硫化物矿物氧化联合体中的作用
2. Heterotrophic sulfide-oxidizing nitrate-reducing bacteria enables the high performance of integrated autotrophic-heterotrophic denitrification (IAHD) process under high sulfide loading [J] . Zhang Ruo-Chen, Chen Chuan, Shao Bo, Water Research . 2020,第Jul1期

机译：氮酸盐还原细菌的异养硫化硫化物氧化能够在高硫化物载荷下实现集成的自养 - 异养脱氮（IAHD）过程的高性能
3. Bioflotation of sulfide minerals with Acidithiobacillus ferrooxidans in relation to copper activation and surface oxidation [J] . E.T. Pecina-Trevino, G.T. Ramos-Escobedo, P.M. Gallegos- Acevedo, Canadian journal of microbiology . 2012,第9期

机译：铁酸酸性硫杆菌对硫化物矿物的生物浮选与铜活化和表面氧化的关系
4. BIOFLOTATION OF SULFIDE MINERALS IN THE PRESENCE OF HETEROTROPHIC AND CHEMOLITHOTROPHIC BACTERIA [C] . P. K. Sharma, K. Hanumantha Rao, K.A. Natarajan, International mineral processing congress . 2000

机译：在异养和化学脱发细菌存在下硫化物矿物的生物透功能
5. Dissimilatory sulfate-reducing bacteria in sulfide mineral diagenesis: In vitro, geologic systems and bioreactors. [D] . Donald, Ravin. 1998

机译：硫化物矿物成岩作用中的异化硫酸盐还原细菌：体外，地质系统和生物反应器。
6. Production of Glycolic Acid by Chemolithotrophic Iron- and Sulfur-Oxidizing Bacteria and Its Role in Delineating and Sustaining Acidophilic Sulfide Mineral-Oxidizing Consortia [O] . Ivan Ñancucheo, D. Barrie Johnson 2010

机译：化营养性铁和硫氧化细菌生产乙醇酸及其在勾勒和维持嗜酸性硫化物矿物氧化联合体中的作用
7. Production of Glycolic Acid by Chemolithotrophic Iron- and Sulfur-Oxidizing Bacteria and Its Role in Delineating and Sustaining Acidophilic Sulfide Mineral-Oxidizing Consortia. [O] . Nancucheo, I., Johnson, D.B. 2010

机译：化学营养的铁和硫氧化细菌生产乙醇酸及其在嗜酸性硫化物矿物氧化联合体的描述和维持中的作用。

BIOFLOTATION OF SULFIDE MINERALS IN THE PRESENCE OF HETEROTROPHIC AND CHEMOLITHOTROPHIC BACTERIA

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