Results 251 to 260 of about 87,639 (320)
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Bioresource Technology, 2020
In this study, denitrification was performed using pyrite as sole electron donor. The nitrate reducing rate ranged from 0.61 to 0.95 mM/d. The production of nitrous oxide (N2O) was observed, accounting for 20% of the total nitrate reduction.
Yun-Meng Pang, Jianlong Wang
semanticscholar +1 more source
In this study, denitrification was performed using pyrite as sole electron donor. The nitrate reducing rate ranged from 0.61 to 0.95 mM/d. The production of nitrous oxide (N2O) was observed, accounting for 20% of the total nitrate reduction.
Yun-Meng Pang, Jianlong Wang
semanticscholar +1 more source
American Mineralogist, 2021
Gold deposits are often the result of complex mineralization and remobilization processes. Interpretation of bulk geochemical and sulfur isotope data of the gold deposits is frequently hampered by complex zoning in pyrite, which calls for in situ ...
Yingiun Ma +3 more
semanticscholar +1 more source
Gold deposits are often the result of complex mineralization and remobilization processes. Interpretation of bulk geochemical and sulfur isotope data of the gold deposits is frequently hampered by complex zoning in pyrite, which calls for in situ ...
Yingiun Ma +3 more
semanticscholar +1 more source
Biochemical and Biophysical Research Communications, 2012
In RNA, function follows form. Mapping the surface of RNA molecules with chemical and enzymatic probes has revealed invaluable information about structure and folding. Hydroxyl radicals ((·)OH) map the surface of nucleic acids by cutting the backbone where it is accessible to solvent.
Jörg C, Schlatterer +4 more
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In RNA, function follows form. Mapping the surface of RNA molecules with chemical and enzymatic probes has revealed invaluable information about structure and folding. Hydroxyl radicals ((·)OH) map the surface of nucleic acids by cutting the backbone where it is accessible to solvent.
Jörg C, Schlatterer +4 more
openaire +2 more sources
American Mineralogist, 2021
Trace element geochemistry of pyrite is widely used to monitor ore-forming processes of various types of deposits, but its application to skarn mineral systems is not well constrained due to the multi-stage nature and complex associated mineral ...
Yu Zhang +5 more
semanticscholar +1 more source
Trace element geochemistry of pyrite is widely used to monitor ore-forming processes of various types of deposits, but its application to skarn mineral systems is not well constrained due to the multi-stage nature and complex associated mineral ...
Yu Zhang +5 more
semanticscholar +1 more source
The influence of pyrite content on the flotation of chalcopyrite/pyrite mixtures
Minerals Engineering, 2014 Available online 20 October 2013In the flotation of copper ores, several processing plants report that copper recovery is affected by the proportion and reactivity of pyrite in the ore, with the effect becoming more intense when the feed particles are ...
Jonas Addai-Mensah +2 more
exaly +2 more sources
Minerals Engineering, 2020
Complex sulfide ores are typically mixtures of various sulfide minerals like sphalerite (ZnS), chalcopyrite (CuFeS2), galena (PbS), pyrite (FeS2), and barite (BaSO4) and processed by selective flotation to recover target-sulfide minerals like ...
Kosei Aikawa +6 more
semanticscholar +1 more source
Complex sulfide ores are typically mixtures of various sulfide minerals like sphalerite (ZnS), chalcopyrite (CuFeS2), galena (PbS), pyrite (FeS2), and barite (BaSO4) and processed by selective flotation to recover target-sulfide minerals like ...
Kosei Aikawa +6 more
semanticscholar +1 more source
Study of pyrite based autotrophic denitrification system for low-carbon source stormwater treatment
, 2020Improving the nitrogen removal capacity of stormwater runoff has been the main research direction of bioretention systems in recent years. Heterotrophic denitrification in traditional bioretention systems was often used, but insufficient carbon sources ...
Yi-Fan Chen +5 more
semanticscholar +1 more source
EVOLUTION OF INVISIBLE Au IN ARSENIAN PYRITE IN CARLIN-TYPE Au DEPOSITS
, 2021A significant characteristic distinguishing Carlin-type Au deposits from other Au deposits is the abundance of invisible Au in arsenian pyrite. Gold occurs primarily as ionic Au1+ in arsenian pyrite and is unstable during subsequent thermal events.
Q. Liang +5 more
semanticscholar +1 more source
, 2021
The long term catalytic activity of pyrite in advanced oxidation for wastewater treatment is vital for the practical application. In this work, the efficacy of pyrite catalyzed Fenton-like oxidation for tertiary treatment of dyeing wastewater was ...
Quanyuan Chen +4 more
semanticscholar +1 more source
The long term catalytic activity of pyrite in advanced oxidation for wastewater treatment is vital for the practical application. In this work, the efficacy of pyrite catalyzed Fenton-like oxidation for tertiary treatment of dyeing wastewater was ...
Quanyuan Chen +4 more
semanticscholar +1 more source
An XPS study of the oxidation of pyrite and pyrites in coal
Fuel, 1977Abstract X-ray Photoelectron Spectroscopy (XPS) was used to study mineral, synthetic and coal-associated pyrites, oxidized for various time intervals at low temperatures with humid air or oxygen. This was done to find out if XPS could detect, monitor and clarify pyrite surface-oxidative changes that influence surface-dependent coal-cleaning methods ...
David C. Frost +3 more
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