Publications
Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
---|
ecology of sulfur-oxidizing bacteria in hot acid soils. | hot acid soils in yellowstone national park are rich in elemental sulfur and harbor extensive populations of sulfur-oxidizing bacteria. thiobacillus thiooxidans is found at temperatures below 55 c, and at temperatures from 55 to 85 c sulfolobus acidocaldarius is present. the distribution of these bacteria as a function of temperature was measured by a most-probable-number dilution method, and their activity in situ was assessed by use of a new technique permitting measurement of (14)co(2) fixati ... | 1972 | 4559726 |
biology of thiobacillus ferrooxidans in relation to the microbiological leaching of sulphide ores. | 1972 | 4561082 | |
thiomicrospira pelophila, gen. n., sp. n., a new obligately chemolithotrophic colourless sulfur bacterium. | 1972 | 4561895 | |
ribulose diphosphate carboxylase from autotrophic microorganisms. | thiobacillus denitrificans was grown anaerobically with nitrate as an acceptor in both sterile and nonsterile media. ribulose diphosphate carboxylase was stable throughout the exponential growth phase and declined slowly only after cells reached the stationary phase. reversible inactivation of the carboxylase occurred in extracts as a result of bicarbonate omission. the enzyme was purified 32-fold with excellent recovery of a preparation which was 50 to 60% pure by the criterion of polyacrylamid ... | 1972 | 4623310 |
[participation of carbonic anhydrase in the assimilation of carbon dioxide during chemical synthesis by thiobacillus thiooxidans 58r]. | 1972 | 4623370 | |
regulation of ribulose-1,5-diphosphate carboxylase by 6-phospho-d-gluconate. | 1972 | 4626611 | |
bacterial carotenoids. xxxvii. carotenoids of thiorhodaceae 9. structural elucidation of five minor carotenoids from thiothece gelatinosa. | 1972 | 4635689 | |
[microbiological purification of hydrogen sulfide waste waters from sulfate pulp manufacture]. | 1972 | 4670469 | |
chalcocite oxidation and coupled carbon dioxide fixation by thiobacillus ferrooxidans. | the reaction of cell suspensions of thiobacillus ferrooxidans with pulverized chalcocite (cu(2)s) in a warburg manometric apparatus resulted in oxygen uptake accompanied by increased solubilization of copper and fixation of carbon dioxide. since the only detectable oxidized products were cupric ions and the more oxidized form of the sulfide mineral, that is, digenite or covellite, the apparent source of energy for the carbon dioxide fixation was provided by the oxidation of the cuprous copper of ... | 1972 | 17797392 |
demonstration of rhodanese activity in polyacrylamide gels. | rhodanese activity from crude extracts of thiobacillus sp. strain iv-85 was demonstrated in polyacrylamide gels after incubation in the reaction mixture by staining with dichloroindophenol in the presence of methylphenazonium methosulfate. the sensitivity of the staining system was found to be 8 x 10 moles of sulfite. | 1972 | 16349929 |
studies on the growth of thiobacillus ferrooxidans. i. use of membrane filters and ferrous iron agar to determine viable numbers, and comparison with 14 co 2 -fixation and iron oxidation as measures of growth. | 1973 | 4684598 | |
changes in phospholipid composition of thiobacillus neapolitanus during growth. | 1973 | 4692631 | |
oxidation of sulfur compounds and coupled phosphorylation in the chemoautotroph thiobacillus neapolitanus. | 1973 | 4706835 | |
[metal sulfides biodegradation by "thiobacillus ferrooxidans": effect of their total surfaces]. | 1973 | 4723414 | |
[thiobacillus organoparus sp. n.--new myxotrophic sulfur bacterium growing on an acid medium]. | 1973 | 4751324 | |
purification and purine nucleotide regulation of ribulose-1,5-diphosphate carboxylase from thiobacillus novellus. | 1973 | 4763340 | |
sulphide oxidation linked to the reduction of nitrate and nitrite in thiobacillus denitrificans. | 1973 | 4770733 | |
intermediates of denitrification in the chemoautotroph thiobacillus denitrificans. | 1973 | 4781593 | |
characterization of thiobacillus species by gas-liquid chromatography of cellular fatty acids. | 1973 | 4571173 | |
effect of supplementary aeration on the growth of thiobacillus thiooxidans in shaken cultures. | 1973 | 4572380 | |
genetic and phenetic classification of bacteria. | 1973 | 4584677 | |
[ribosephosphate isomerase, phosphoribulokinase and ribulosediphosphate carboxylase in extracts of thiobacillus thiooxidans 58 r cells]. | 1973 | 4360786 | |
effects of organic compounds on growth of chemostat cultures of thiomicrospira pelophila, thiobacillus thioparus and thiobacillus neapolitanus. | 1973 | 4591719 | |
[oxidation of elementary sulfur by thiobacillus thiooxidans]. | 1973 | 4597880 | |
[effect of atmospheric oxygen partial pressure and of the acidity of the medium on the viability of thionic bacteria]. | 1973 | 4598493 | |
[submicroscopic organization and function of certain structures of thiobacillus neapolitanus]. | 1973 | 4598497 | |
electron microscopy of the carboxysomes (polyhedral bodies) of thiobacillus neapolitanus. | the carboxysomes of thiobacillus neapolitanus are shown, by electron microscopy, to consist of a paracrystalline array of 10-nm particles surrounded by a "membrane." the 10-nm particles have a center hole or depression and have been previously identified as ribulose diphosphate carboxylase. the membrane is a monolayer approximately 3.5-nm thick. | 1973 | 4127632 |
studies on isocitrate lyase from the facultative autotroph thiobacillus novellus. | 1973 | 4144746 | |
thiosulfate- and sulfide-dependent pyridine nucleotide reduction and gluconeogenesis in intact thiobacillus neapolitanus. | nicotinamide adenine dinucleotide phosphate (reduced form) is formed more rapidly after the addition of thiosulfate to suspensions of intact thiobacillus neapolitanus in the absence of co(2) than nicotinamide adenine dinucleotide (reduced form). measurement of acid-stable metabolites shows this phenomenon to be the result of rapid reoxidation of nicotinamide adenine dinucleotide (reduced form) by 3-phosphoglyceric acid and other oxidized intermediates, which are converted to triose and hexose ph ... | 1973 | 4145196 |
[inhibition of ribulosediphosphate carboxylase by adenosine triphosphate in autotrophic organisms]. | 1973 | 4198598 | |
isolation and characterization of a bacteriophage for thiobacillus novellus. | a dna-containing bacteriophage for thiobacillus novellus has been isolated from sewage and purified by ammonium sulfate precipitation, differential centrifugation, and cesium chloride equilibrium centrifugation. the buoyant density of this phage in cscl is 1.51 g/cm(3). electron microscopy studies have revealed a polyhedral head about 60 nm in diameter and a tail surrounded by a number of fine filaments. it has an adsorption rate constant of 1.1 x 10(-9) ml/min, a latent period of 45 min, and an ... | 1973 | 4203086 |
toxic and immunological differences among lipopolysaccharides from thiobacillus ferrooxidans grown autotrophically and heterotrophically. | 1973 | 4203511 | |
[submicroscopic organization of thiobacillus thiocyanoxidans]. | 1973 | 4273794 | |
[denitrifying bacteria isolated from sulfide ore deposits]. | 1973 | 4208929 | |
functional organelles in prokaryotes: polyhedral inclusions (carboxysomes) of thiobacillus neapolitanus. | the polyhedral inclusions of thiobacillus neapolitanus have been isolated; they contain ribulose diphosphate carboxylase. | 1973 | 4355679 |
adenylate kinase from thiobacillus neapolitanus. unique properties, possibly designed to serve a unique metabolic function. | 1973 | 4357664 | |
electron transport-linked compared with proton-induced atp generation in thiobacillus novellus. | the apparently soluble electron-transport system, that does not sediment when centrifuged at 144,000 x g or 300,000 x g for 3 hr, catalyzes oxidative phosphorylation with an efficiency comparable to that of an intact mitochondrial system. while the proton-induced phosphorylation occurs in whole cells, crude cell-free extracts, and supernatants from low-speed centrifugation, it does not occur in either the 144,000 or 300,000 x g supernatant fractions. the data show that oxidative energy can be co ... | 1973 | 4357881 |
regulation in the chemolithotroph thiobacillus neapolitanus: fructose-1,6-diphosphatase. | 1973 | 4358022 | |
letter: microbial mutualism in ore leaching. | 1974 | 4414296 | |
biochemical studies on accelerated treatment of thiocyanate by activated sludge using growth factors such as pyruvate. | 1974 | 4420779 | |
direct method for continuous determination of iron oxidation by autotrophic bacteria. | a method for direct, continuous determination of ferric ions produced in autotrophic iron oxidation, which depends upon the measurement of ferric ion absorbance at 304 nm, is described. the use of initial rates is shown to compensate for such changes in extinction during oxidation, which are due to dependence of the extinction coefficient on the ratio of complexing anions to ferric ions. a graphical method and a computer method are given for determination of absolute ferric ion concentration, at ... | 1974 | 4441066 |
on the sulfur-source requirement for growth of thiobacillus intermedius. | 1974 | 4441215 | |
iron oxidation by cell envelopes of thiobacillus ferrooxidans. | 1974 | 4441979 | |
respiration-driven proton translocation in thiobacillus neapolitanus c. | 1974 | 4442584 | |
[isolation of thiobacillus ferrooxidans in the andine mining zone]. | 1974 | 4530437 | |
mechanisms of inorganic oxidation and energy coupling. | 1974 | 4215368 | |
studies on the growth of thiobacillus ferrooxidans. ii. toxicity of uranium to growing cultures and tolerance conferred by mutation, other metal cations and edta. | 1974 | 4205798 | |
[carbon dioxide fixation on 3-carbon acceptors in the obligate chemoautotroph thiobacillus thiooxidans]. | 1974 | 4156074 | |
[oxidation of sulfide minerals by thiobacillus thiooxidans]. | 1974 | 4601474 | |
a sulfate-dependent acid phosphatase of thiobacillus thiooxidans. its partial purification and some properties. | 1974 | 4609973 | |
scanning electron microscopy of thiobacilli grown on colloïdal sulfur. | 1974 | 4611376 | |
the calculation of partial specific volumes of proteins in guanidine hydrochloride. | 1974 | 4613272 | |
relationship between growth and metabolic activity in the strict chemolithotroph, thiobacillus thiooxidans. | 1974 | 4613448 | |
[microbiologic studies of copper pyrite deposits in south ural]. | 1974 | 4615253 | |
[phosphoribulokinase and regulation of the size of the metabolic pool of ribulose-1,5-diphosphate by hydrogen bacteria]. | 1974 | 4364096 | |
[geomicrobiological studies. xii. behavior of microorganisms on uranium containing rocks]. | 1974 | 4365496 | |
degradation of oil shale by sulfur-oxidizing bacteria. | approximately 40% of oil shale can be solubilized by the action of sulfur-oxidizing bacteria. thiobacillus thiooxidans and thiobacillus concretivorous are equally effective in solubilization. continuous leaching experiments show that this process can be completed within 14 days. the growth of thiobacillus and the production of acid were measured under several conditions. almost all of the camg(co(3))(2) was removed by this process, leaving a complex of silica and kerogen that could be burned as ... | 1974 | 4370628 |
active transport of amino acids by membrane vesicles of thiobacillus neapolitanus. | 1974 | 4372294 | |
co2 fixation by the facultative autotroph thiobacillus novellus during autotrophy-heterotrophy interconversions. | 1974 | 4373155 | |
eukaryotic cytochrome c-like properties of cytochrome c-550 (thiobacillus novellus). | 1974 | 4373290 | |
ultrastructure of a marine thiobacillus. | 1974 | 4373524 | |
heterotrophic nature of the cell-free protein-synthesizing system from the strict chemolithotroph, thiobacillus thiooxidans. | a cell-free protein-synthesizing system prepared from the strict chemolithotroph, thiobacillus thiooxidans, was similar to that of heterotrophs. the poly-u directed system had a temperature optimum of 37 c, but in the presence of spermidine (3 mm) the optimum shifted to 45 c. although growth of the chemolithotroph occurs only in acid conditions, the ph optimum for the cell-free system was ph 7.2. the endogenous-directed activity in the presence or absence of spermidine was maximal at ph 7.8. spe ... | 1974 | 4590488 |
studies on the gorwth of thiobacillus ferrooxidans. 3. influence of uranium, other metal ions and 2:4-dinitrophenol on ferrous iron oxidation and carbon dioxide fixation by cell suspensions. | 1974 | 4815912 | |
oxidation of metal sulfides by thiobacillus ferrooxidans grown on different substrates. | 1974 | 4822784 | |
[new findings concerning the submicroscopic organization of thiobacillus thiooxidans]. | 1974 | 4828746 | |
[the role of the ion composition of solutions in the process of microbiologic ore leaching out]. | 1974 | 4828752 | |
studies on the growth of thiobacillus ferrooxidans. v. factors affecting growth in liquid culture and development of colonies on solid media containing inorganic sulphur compounds. | 1974 | 4847052 | |
studies on the growth of thiobacillus ferrooxidans. iv. influence of monovalent metal cations on ferrous iron oxidation and uranium toxicity in growing cultures. | 1974 | 4847498 | |
[microbiological studies on an experimental block of the bacterial leaching of ores in the degtyarka deposit]. | 1974 | 4849189 | |
effect of wall growth on continuous biological oxidation of ferrous iron. | 1974 | 4851713 | |
growth rate stimulation of marine pseudomonads by thiosulfate. | 1974 | 4852191 | |
sulfur metabolism in thiobacillus denitrificans evidence for the presence of a sulfite reducatase activity. | the relatively high specific sulfite reductase activity of 25 mu/mg protein was found in extracts from thiobacillus dentrificans. the absorption spectrum of the partially pruified enzyme was similar to the siroheme containing sulfite reductases from other sources. it is suggested that the t. denitrificans sulfite reductase may function during the oxidation of reduced sulfur compounds. | 1975 | 1190961 |
[measurement of chemolithothrotrophic denitrifying and sulphate reducing bacteria in an experimental field]. | 1975 | 1186521 | |
the respiratory chain of thiobacillus ferrooxidans: the reduction of cytochromes by fe2+ and the preliminary characterization of rusticyanin a novel "blue" copper protein. | 1975 | 6319 | |
nonautotrophic thiobacillus in acid mine water. | nonautotrophic thiobacilli were isolated from the acidic water of a coal mine. based on their mixotrophic physiology, the isolates are regarded as strains of thiobacillus perometabolis. | 1975 | 954 |
new medium for isolating iron-oxidizing and heterotrophic acidophilic bacteria from acid mine drainage. | a new solid medium is described for growing iron and heterotrophic bacteria from acid mine drainage (amd). examination of amd from five states revealed several kinds of colonies of iron-oxidizing bacteria: (i) smooth, (ii) smooth with secondary growth sectors or branching, (iii) star-shaped, (iv) radiating lobe, and (v) flat-rough. all amd samples yielded whitish colonies that could not use ferrous iron, sulfur, or hydrogen, nor could they grow on nutrient agar, brain heart infusion agar, or try ... | 1975 | 2103 |
ferrous ion oxidation and uranium solubilization from a lowgrade ore by "thiobacillus ferrooxidans" (author's transl). | the microbiological oxidation of ferrous ion and the extraction of uranium from a low-grade ore has been studied using an adapted strain of thiobacillus ferrooxidans. the effect of temperature, ph, volumetric oxygen transfer coefficient, k1a, and aeration number, ia, on the activity of the microorganism has been determined. the activation energy for ferrous iron oxidation was calculated to be - 13.9 +/- 0.1 kcal/mole and inactivation (thermal death of bacteria) 53.3 +/- 0.2 kcal/mole. temperatur ... | 1975 | 3131 |
purification and some properties of cytochrome c-552 from a sulfur-oxidizing bacterium, thiobacillus thiooxidans. | a soluble cytochrome c-552 from thiobacillus thiooxidans was highly purified and its physico-chemical properteis were studied. the absorption maxima were at 552,523,418 nm in the reduced from and at 412 nm in the oxidized form. the pyridine hemochrome spectrum was the same as that of other cytochromes c. the molecular weight, estimated by the gel filtration method, was found to be 12,600. the isoelectric point was determined to be 9.2-9.3 by the electrofocusing technique. the standard oxidation- ... | 1975 | 172491 |
the soluble adenosine triphosphatase of thiobacillus ferrooxidans. | adenosine triphosphatase (atpase) from thiobacillus ferrooxidans was purified 55-fold. polyacrylamide gel electrophoresis of the most purified fraction showed only one major band; histochemical analysis showed that the atpase activity was associated with this band. the ph optimum is 9-10. the enzyme hydrolyzed atp stoichiometrically to adp and inorganic phosphate, the km for this substrate being 7.75 times 10-3 m. gtp and itp are alternate substrates, the km values for these being 6.71 times 10- ... | 1975 | 234778 |
thiobacillus acidophilus sp. nov.; isolation and some physiological characteristics. | after a brief exposition to glucose, thiobacillus acidophilus was isolated from a culture of iron-grown t. ferrooxidans. physicochemical analysis of its dna showed a g+c content of 62.9-63.2%. the new isolate grows best at 25-30 degrees c and at ph 3.0. growth is possible between ph 1.5 and 6.0. thiobacillus acidophilus is apparently strictly aerobic. ammonium salts are the only suitable source of nitrogen. the bacterium is a facultative autotroph. in addition to elemental sulfur, it obtains ene ... | 1975 | 234784 |
physical and chemical studies of thiobacillus ferroxidans lipopolysaccharides. | the lipopolysaccharides (lps) of the obligate acidophile thiobacillus ferroxidans grown on iron, sulfur, and glucose as energy sources were examined for various physical and chemical properties. both qualitative and quantitative variation were found among the three preparations. the lps extracted from iron-grown cells (fe-lps) contained less than 3% protein compared to 18 to 25% in lps extracted from either sulfur-grown cells (s-lps) or glucose-grown cells (g-lps). s-lps showed two distinct sedi ... | 1975 | 238956 |
phosphoenolpyruvate carboxylase of thiobacillus thioparus. i. general properties. | phosphoenolpyruvate (pep) carboxylase (orthophosphate:oxalacetate carboxylase (phosphorylating), ec 4.1.1.31) was purified 19-fold from the obligate chemoautotroph, thiobacillus thioparus. michaelis constants for the substrates were found to be 0.44 mm for phosphoenolpyruvate, 0.89 mm for bicarbonate, and 0.37 mm for magnesium, using tris-hc1, ph 7.3. 1-aspartate, 1-malate, and orthophosphate were found to be inhibitors of enzyme activity, while acetyl coa, fdp, gtp, and cdp had no effect. dioxa ... | 1975 | 241472 |
effect of mineral acids on iron bacteria. | the oxidative ability of thiobacillus ferroxidans in the presence of different concentrations of h2so4, hc1, hno3, and their mixtures was investigated. bacteriological oxidation of feso4 is expressed as a function of time and acid concentration. for each acid and for their mixtures lethal concentrations for t. ferroxidans were found experimentally. on the basis of the lethal concentration for each acid separately the lethal concentrations of their mixtures were computed and it was found that the ... | 1975 | 242124 |
properties and regulation of ribulose diphosphate carboxylase from thiobacillus novellus. | ribulose-diphosphate carboxylase from thiobacillus novellus has been purified to hemogeneity as observed by polyacrylamide gel electrophoresis and u.v. light observation during sedimentation velocity analysis. the optimum ph for the enzyme with tris-hcl buffers was about 8.2. concentrations of this buffer in excess of 80 mm were inhibitory. the apparent km for rudp was about 14.8 mum with a hill value of 1.5, for hco3- the apparent km was about 11.7 mm with an n value of 1.18 and for mg2+ about ... | 1975 | 242294 |
pyruvate inhibition of the carbon dioxide fixation of the strict chemolithotroph thiobacillus thiooxidans. | a flow-through dialysis system used to decrease the concentrations of toxic organic materials excreted by thiobacillus thiooxidans permitted an improved efficiency of carbon dioxide fixation when compared with cells taken from the usual shaken culture. the additions of various concentrations of pyruvic acid and succinic acid inhibited growth significantly. pyruvate at a concentration of 5 x 10(-3) m completely inhibited the respiration of resting cells oxidizing sulfur. the toxicity of pyruvic a ... | 1975 | 766931 |
[function of surface membrane structures in thiobacillus thiooxidans]. | the function of the surface membrane structures was studied with cytochemical techniques on ultrathin sections of thiobacillus thiooxidans. the transport of elementary sulphur inside the cell involves the surface membrane structures, while oxidation of the sulphur to sulphuric acid takes place on the outer surface of the cytoplasmic membrane. the surface membrane structures are supposed also to participate in the primary dissolution of elementary sulphur at the site of contact of the cells with ... | 1975 | 775257 |
infrared scattering: a method for evaluating the mass and size of bacteria. | in the realm of biophysics and biochemistry, light scattering is used extensively to evaluate the molecular weight and size of macromolecules and particles in suspension. bacteria scatter strongly but are too large for the conventional procedures. by extending the wavelength lambda of the incident radiation into the infrared, we show that the effective size of the bacteria (relative to lambda) is reduced, and the usual zimm plot measurements and procedure can be applied to evaluate the molecular ... | 1975 | 1098063 |
refractive index increment meaasurement for bacterial suspensions. | 1975 | 1098064 | |
[conservation and recultivation of vacuum-dried cells of thiobacillus ferrooxidans]. | 1975 | 1103490 | |
regulation of the thiobacillus intermedius glucose uptake system by thiosulfate. | cells of the mixotrophic chemolithotroph (facultative autotroph) thiobacillus intermedius which have been grown on a glucose-yeast extract medium, a condition in which glucose is used as a source of energy, accumulate the non-metabolizable analogue 2-deoxy-d-glucose against a concentration gradient in a predominantly unchanged state. on the other hand, cells grown mixotrophically on a thiosulfate-glucose medium, a condition in which glucose provides cell carbon but is not used extensively for en ... | 1975 | 1112773 |
effect of water potential on growth and iron oxidation by thiobacillus ferrooxidans. | the effect of water potential on the growth of two strains of thiobacillus ferrooxidans was determined by adding defined amounts of sodium chloride or glycerol to the culture medium. the two strains differed slightly, and the most tolerant strain had a minimum water potential for growth of minus 15 to minus 32 bars when chloride was used and minus 6 bars when glycerol was used. in another approach, the limiting water potential was determined by equilibrating small amounts of culture medium with ... | 1975 | 1124922 |
long term storage of thiobacillus ferrooxidans. | 1975 | 1126880 | |
reduction of oxidized inorganic nitrogen compounds by a new strain of thiobacillus denitrificans. | denitrification by thiobacillus denitrificans "rt" strain was investigated using manometry and gas chromatography. 1. from nitrate, resting cells produced only nitrogen anaerobically with thiosulfate as the electron donor. the data suggest that nitrate was assimilated and dissimilated by the same nitrate reductase, assayed with benzyl-viologen as the electron donor. 2. from nitrite, whole cells produced nitric oxide, nitrous oxide and nitrogen, using thiosulfate as the electron donor; nitrogen w ... | 1975 | 1164140 |
the uptake and assimilation of sulphate by thiobacillus ferrooxidans. | sulphate was rapidly bound by cell suspensions of thiobacillus ferrooxidans. the binding was depressed by tetrathionate but was unaffected by group vi anions, cysteine or methionine. increasing uptake of sulphate was observed in cell suspensions incubated in the presence of ferrous iron. the bulk of 35s-sulphate was removed from the organisms by washing with dilute sulphuric acid and the remaining label was incorporated into cold trichloroacetic acid-soluble compounds. 35s-labelled adenosine 5'- ... | 1975 | 1200736 |
[the effect physical factors and proteolytic enzymes on actinomycete mycelium and spores]. | the influence of enzymes (lyzozyme, trypsin, papain) and physical factors (hydrostatic pressure, mechanical sand grinding, extrusion in the frozen state, ultrasonic treatment) on the spores and mycelium of actinomycetes actinomyces streptomycini b-6 and thiobacillus vulgaris 2681 was studied. actinomycete spores proved to be stable to trypsin and papain. lyzozyme induced an almost complete disruption of the mycelium. the influence of hydrostatic pressure and lyzozyme on spores was the least effe ... | 1975 | 1208433 |
[studies on bacterial leaching]? | 1975 | 1236971 | |
[characteristics of sulfur bacteria from lakes of the mari assr]. | five karst lakes were investigated in the mari autonomous republic. the vertical distribution of thionic bacteria in water was correlated to the distribution and content of dissolved sulphides. the concentration of thionic bacteria was higher in more productive lakes. a symbiotic culture of thionic and denitrifying bacteria, but not thiobacillus denitrificans, was isolated from water of these lakes. | 1975 | 125841 |
[the systematic position of thiobacillus trautweinii]. | 1976 | 940485 | |
microbiological leaching of a chalcopyrite concentrate by thiobacillus ferrooxidans. | the microbiological leaching of a chalcopyrite concentrate has been investigated using a pure strain of thiobacillus ferrooxidans. the optimum leaching conditions regarding ph, temperature, and pulp density were found to be 2.3, 35 degrees c, and 22% respectively. the energy of activation was calculated to be 16.7 kcal/mol. during these experiments the maximum rate of copper dissolution was about 215 mg/liters/hr and the final copper concentration was as high as 55 g/liter. this latter value is ... | 1976 | 953169 |
inhibition of thiobacillus ferrooxidans by soluble silver. | 1976 | 953172 |