Results 51 to 60 of about 4,543 (173)
Solubilización de fosfato inorgánico por acción de ácido sulfúrico biogenerado
En la obtención de fertilizantes fosfatados es habitual el uso de ácido sulfúrico en la solubilización del fósforo a partir de apatitas. El ácido sulfúrico, que suele encarecer estos procesos a nivel industrial, puede generarse por acción sobre azufre ...
E. Donatti, G. Curutchet
doaj
Aggressive forms of intertidal steel corrosion are shown to involve complex microbial consortia including sulfate‐reducing, sulfide‐oxidizing and iron‐oxidizing bacteria along with others including electroactive microbes. Statistical analysis shows the populations are derived from local bed sediment, indicating sediment anoxia as a risk factor for ...
Biji Shibulal +5 more
wiley +1 more source
Abstract Amidst the global food shortage and the global climate change challenge, there is an urgent need to double food production by 2050. However, the modern crop production methods, including the use of fertilizers and pesticides, have adverse environmental consequences, exacerbating the climate crisis.
Ravinder Singh +4 more
wiley +1 more source
Bioleaching is the process in which insoluble metal sulfide is oxidized by specialized iron- and/or sulfur-oxidizing lithotrophic bacteria in acidic, metal-rich environments. Most of these processes are carried out by the genus Thiobacillus.
최원자, 조경숙
core +1 more source
Effects of uncouplers on the acidostability of Thiobacillus thiooxidans.
The respiratory activity of Thiobacillus thiooxidans, even when the microorganism was incubated at pH 2.0, was not changed. In the presence of 0.1 mm 2,4-dinitrophenol (DNP), pentachlorophenol (PCP), tetraphenyl borate (TPB) and tributylamine (TBA), the respiratory activity was inhibited in acidic environments by DNP, PCP and TPB, while TBA inhibited ...
NOGUCHI, Akinori +3 more
openaire +2 more sources
Natural tara and oak gall nut tannins, which lack corrosion inhibitive properties, were modified using gum arabic and tested against microbial corrosion induced by Acidithiobacillus thiooxidans under isothermal condition (28°C). Mild steel coated with the modified tannins was exposed to the causative under aerobic and anaerobic conditions. Based on the
Samuel Eshorame Sanni +4 more
wiley +1 more source
Iron Oxidation by Thiobacillus thiooxidans [PDF]
The iron-oxidizing activity of Thiobacillus thiooxidans cultured in the ONM medium was very weak. When the bacteria were successively cultured in the 9K medium containing sulfur, whose content was decreased step by step, the activity of iron-oxidation ...
Sakai, Kiyofumi +4 more
core
The amino acid and monosaccharide content of the cell walls of Thiobacillus thiooxidans [PDF]
The objectives of this investigation were: (a) to culture large quantities of Thiobacillus thiooxidans cells, (b) to find an acceptable method of rupturing the cells, (c) to find an acceptable method of isolating the cell walls, and (d) to analyze the ...
Crum, Edward Hibbert
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a b s t r a c t a r t i c l e i n f o High concentrations of H 2 S in groundwater are commonly removed using Biological Trickling Filter (BTF) that contains high numbers of biofilm immobilized sulfur oxidizing bacteria (mainly Thiobacillus thiooxidans ...
Robert H Armon +2 more
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An investigation into the use of batch experiments in the determination of the kinetics of ferrous-iron oxidation by Leptospirillum ferrooxidans [PDF]
Bibliography: leaves 60-64.The objectives of this research were to investigate the effect of temperature and pH on the bacterial ferrous-iron oxidation by Leptospirillum ferrooxidans in batch culture and compare these results with those previously ...
Dempers, Christian John Nicholas
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