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  • Research Advances of Prevention and Control of Hydrogen

    AbstractIntroductionPrevention and Control Technology of S in Coal SeamsMajor Problems ExistingResearch ResultsConclusions and ProspectsAcknowledgmentsSudden emission and casualty accidents caused by abnormal enrichment of hydrogen sulfide (H2S) in coal mines are becoming frequent increasingly, causing major casualties and environmental pollution. Scholars in various countries have developed various measuring devices for hydrogen sulfide content in coal and rock formations and their calculation methods. The existing prevention and control technologies of H2S in coal mines were summarized in various countries. According to the distribution characteristic
  • Origin of hydrogen sulfide in coal seams in China

    Apr 01, 2012· In recent years, coal mines in China have seen accidents caused by sudden release of hydrogen sulfide (H 2 S), with higher severity.

  • Effects of Hydrogen Sulfide • MineARC Systems

    Sep 10, 2018· Hydrogen Sulfide is naturally generated in situ from reservoir biomass and sulfate containing minerals through microbial sulfate reduction and thermochemical sulfate reduction. Produced from the decay of organic materials, it is found naturally in many mine sites. It is a part of volcanic gases, some mineral waters and unrefined carbonaceous fuels, such as natural gas, crude oil, and coal.

  • Hazardous Gases: Hydrogen Sulfide • MineARC Systems

    Hydrogen sulfide is a colourless, poisonous gas with a sweet taste. It is often referred to by miners as ‘stinkdamp’ due to its pungent odour, resembling rotten eggs. Hydrogen sulfide is naturally generated in situ from reservoir biomass and sulfate-containing minerals through microbial sulfate reduction and thermochemical sulfate reduction.

  • Hydrogen Sulfide Formation and Potential Health

    Hydrogen sulfide is a contaminant associated with the same types of toxic effects as those found at increased prevalence in mining communities.

  • Safety and Health Topics Hydrogen Sulfide Occupational

    Hydrogen sulfide (also known as H 2 S, sewer gas, swamp gas, stink damp, and sour damp) is a colorless gas known for its pungent "rotten egg" odor at low concentrations. It is extremely flammable and highly toxic. Hydrogen sulfide is used or produced in a number of industries, such as . Oil and gas refining; Mining; Tanning; Pulp and paper

  • Hydrogen Sulfide—Mechanisms of Toxicity and Development of

    Feb 15, 2016· Hydrogen sulfide (H 2 S) is readily water soluble, and, at physiological pH, about two-thirds exists as hydrogen sulfide ion (HS —) and one-third as undissociated H 2 S 1.We use the generic term “sulfide” to refer to both species. Sulfide is an endogenous signal transmitter via protein sulfhydration, and, at low intracellular concentrations—0.01 to 1 μM—donates electrons to complex

  • Acid mine drainage Wikipedia

    Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines.. Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks

  • Hydrogen Sulfide Formation and Potential Health

    Mar 29, 2013· Hydrogen sulfide is a contaminant associated with the same types of toxic effects as those found at increased prevalence in mining communities.

  • Hydrogen sulfide Wikipedia

    Hydrogen sulfide is the chemical compound with the formula H 2 S.It is a colorless chalcogen hydride gas with the characteristic foul odor of rotten eggs. It is poisonous, corrosive, and flammable. Hydrogen sulfide is often produced from the microbial breakdown of organic matter in the absence of oxygen gas, such as in swamps and sewers; this process is commonly known as anaerobic digestion

  • (PDF) Measuring free tissue sulfide

    The removal of hydrogen sulfide and other sulfur gaseous compounds from the fuel gas of coal gasification plants using iron and zinc oxides has been accomplished with promising success.

  • What Is The Agreement Regarding Boropukuria Coal Mining

    Surface mining Wikipedia. Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels.

  • Hydrogen sulfide Unionpedia, the concept map

    Coke is a fuel with a high carbon content and few impurities, usually made from coal. New!!: Hydrogen sulfide and Coke (fuel) · See more » Cold seep. A cold seep (sometimes called a cold vent) is an area of the ocean floor where hydrogen sulfide, methane and other hydrocarbon-rich fluid seepage occurs, often in the form of a brine pool. New!!:

  • Hydrogen Sulfide EPA

    Coal deposits in the United States contain sulfur mainly in pyrites or sulfate. The sulfur content ranges from a trace to more than 8%. Hydrogen sulfide that is occasionally encountered in coal mining operations probably results from the action of steam on the pyrites at high temperatures.

  • Facile, rapid one-pot synthesis of multifunctional gold

    May 15, 2019· 1. Introduction. As a poisonous gas with an unpleasant smell, hydrogen sulfide (H 2 S) is a well-known environmental pollutant produced in crude petroleum, coal mines, and natural gas industries, and the pollution of groundwater might be caused. Moreover, H 2 S has recently been found as an important gaseous signaling molecule in many physiological and

  • Aerobic transformation of cadmium through metal sulfide

    Plant Biol 2007,9 : 582 588 . 61. Sekiya J,Schmidt A,Wilson LG,Filner P : Emission of hydrogen sulfide by leaf tissue in response to L-cysteine . Plant Physiol 1982,70 : 430 436 . 62. Wilson LG,Bressan RA,Filner P : Light-dependent emission of hydrogen sulfide from plants . Plant Physiol 1978,61 : 184 189 . 63.

  • 93 questions with answers in HYDROGEN SULFIDE Science topic

    Sep 13, 2020· For a hydrogen-sulfide environment we understand that hydrogen is a byproduct when iron-sulfide is formed at the exterior surface and hydrogen

  • Hydrogen sulfide. Medical search

    Hydrogen Sulfide: A flammable, poisonous gas with a characteristic odor of rotten eggs.It is used in the manufacture of chemicals, in metallurgy, and as an analytical reagent. (From Merck Index, 11th ed) Cystathionine gamma-Lyase: A multifunctional pyridoxal phosphate enzyme.In the final step in the biosynthesis of cysteine it catalyzes the cleavage of cystathionine to yield cysteine,

  • bossmobi cil coal mining clipping

    Mar 31, 2018· Key Highlights: Coal mining is a process of extraction of coal from the ground. Coal is the modified remains of ancient vegetation and other rock strata under the effects of pressure and heat. It is combustible, organic and sedimentary rock, which is mostly composed of carbons, oxygen and hydrogen. The report

  • Chemical Compatibility Database from Cole-Parmer

    WARNING. The information in this chart has been supplied to Cole-Parmer by other reputable sources and is to be used ONLY as a guide in selecting equipment for

  • Coal Coal types Britannica

    Coal Coal Coal types: Coals contain both organic and inorganic phases. The latter consist either of minerals such as quartz and clays that may have been brought in by flowing water (or wind activity) or of minerals such as pyrite and marcasite that formed in place (authigenic). Some formed in living plant tissues, and others formed later during peat formation or coalification.

  • Polynuclear Aromatic Compounds (PACs, PAHs) Supelco Air

    Polynuclear Aromatic Compounds (PACs) are byproducts of fuel burning-which occur in coal, tar, and oil deposits. PACs are not only released from fossil fuels but also in cooked foods and other consumer goods, such as meat, from the high temperature grilling process as well as from incomplete combustion of other carbon-containing fuels such as tobacco, wood, coal, diesel

  • Sulfur Unionpedia, the concept map

    Sulfide (systematically named sulfanediide, and sulfide(2−)) (British English sulphide) is an inorganic anion of sulfur with the chemical formula S2− or a compound containing one or more S2− ions. New!!: Sulfur and Sulfide · See more » Sulfide minerals. The sulfide minerals are a class of minerals containing sulfide (S2−) as the major

  • Subject: "sulfide minerals" PubAg Search Results

    sulfide minerals, etc ; antimony; biodegradation; environmental factors; mining; oxidation; rocks; Show all 7 Subjects Abstract: In this study, we demonstrate that a bacterial isolate Paraccocus versutus XT0.6 from the Xikuangshan antimony mine, the world largest antimony deposit, is capable of stibnite dissolution, oxidation of Sb(III), and

  • Hydrogen sulfide. Medical search

    Hydrogen Sulfide: A flammable, poisonous gas with a characteristic odor of rotten eggs.It is used in the manufacture of chemicals, in metallurgy, and as an analytical reagent. (From Merck Index, 11th ed) Cystathionine gamma-Lyase: A multifunctional pyridoxal phosphate enzyme.In the final step in the biosynthesis of cysteine it catalyzes the cleavage of cystathionine to yield cysteine, ammonia

  • Aerobic transformation of cadmium through metal sulfide

    Plant Biol 2007,9 : 582 588 . 61. Sekiya J,Schmidt A,Wilson LG,Filner P : Emission of hydrogen sulfide by leaf tissue in response to L-cysteine . Plant Physiol 1982,70 : 430 436 . 62. Wilson LG,Bressan RA,Filner P : Light-dependent emission of hydrogen sulfide from plants . Plant Physiol 1978,61 : 184 189 . 63.

  • Subject: "sulfide minerals" PubAg Search Results

    sulfide minerals, etc ; antimony; biodegradation; environmental factors; mining; oxidation; rocks; Show all 7 Subjects Abstract: In this study, we demonstrate that a bacterial isolate Paraccocus versutus XT0.6 from the Xikuangshan antimony mine, the world largest antimony deposit, is capable of stibnite dissolution, oxidation of Sb(III), and

  • Emerging Roles of Carbonyl Sulfide in Chemical Biology

    Jun 01, 2018· Biogenesis of reactive sulfur species for signaling by hydrogen sulfide oxidation pathways. Nat Chem Biol 11: 457–464, 2015. Crossref, Medline, Google Scholar; 90 Mitsuhashi H, Yamashita S, Ikeuchi H, Kuroiwa T, Kaneko Y, Hiromura K, Ueki K, and Nojima Y. Oxidative stress-dependent conversion of hydrogen sulfide to sulfite by activated

  • Coal Coal types Britannica

    Coal Coal Coal types: Coals contain both organic and inorganic phases. The latter consist either of minerals such as quartz and clays that may have been brought in by flowing water (or wind activity) or of minerals such as pyrite and marcasite that formed in place (authigenic). Some formed in living plant tissues, and others formed later during peat formation or coalification.

  • Aerobic transformation of cadmium through metal sulfide

    Jul 15, 2013· Sekiya J, Schmidt A, Wilson LG, Filner P. Emission of hydrogen sulfide by leaf tissue in response to L-cysteine. Plant Physiol. 1982; 70:430–436. doi: 10.1104/pp.70.2.430. [Google Scholar] Wilson LG, Bressan RA, Filner P. Light-dependent emission of hydrogen sulfide from plants.

  • EP3118214A1 Microbial metabolism of chlorine oxyanions

    EP3118214A1 EP16174926.2A EP16174926A EP3118214A1 EP 3118214 A1 EP3118214 A1 EP 3118214A1 EP 16174926 A EP16174926 A EP 16174926A EP 3118214 A1 EP3118214 A1 EP 3118214A1 Authority EP European Patent Office Prior art keywords daro nucleic acid identical chlorate sulfide Prior art date 2011-06-03 Legal status (The legal status is an assumption and is not a legal

  • US5854032A Biological production of humic acid and clean

    Coal is treated aerobically or anaerobically to produce humic acid, volatile fatty acids, lower alcohols, and/or methane using a consortium of bacteria designated Mic-1 or KSARC56. This process can also be used to convert aromatic compounds, such as phenols and derivatives thereof, to

  • Sulfur Unionpedia, the concept map

    Sulfide (systematically named sulfanediide, and sulfide(2−)) (British English sulphide) is an inorganic anion of sulfur with the chemical formula S2− or a compound containing one or more S2− ions. New!!: Sulfur and Sulfide · See more » Sulfide minerals. The sulfide minerals are a class of minerals containing sulfide (S2−) as the major

  • Polynuclear Aromatic Compounds (PACs, PAHs) Supelco Air

    Polynuclear Aromatic Compounds (PACs) are byproducts of fuel burning-which occur in coal, tar, and oil deposits. PACs are not only released from fossil fuels but also in cooked foods and other consumer goods, such as meat, from the high temperature grilling process as well as from incomplete combustion of other carbon-containing fuels such as tobacco, wood, coal, diesel fuel, edible fats, and

  • Full text of "Health effects of hydrogen sulphide

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  • Microbiology of leaching process iron, copper,gold

    Jul 04, 2015· For example, Newmont Mining Company’s commercial bio-oxidation operation in Nevada has measured temperatures up to 810C in heaps containing 1.4– 1.8% sulfide-sulfur. Temperatures as high as 660C were noted in a 960,000 t test heap of low grade, run of mine chalcopyrite ore containing 4% pyrite at Kennecott Utah Copper .

  • manganese Sigma-Aldrich

    Search results for manganese at Sigma-Aldrich. Compare Products: Select up to 4 products. *Please select more than one item to compare

  • Compare the Difference Between Similar Terms

    Sep 14, 2020· The key difference between kraft and sulfite pulping is that kraft pulping involves the treatment of wood chips with a hot mixture of water, sodium hydroxide and sodium sulfide whereas sulfite pulping involves the treatment of wood chips with sulfite or bisulfite salts of sodium, calcium, potassium, magnesium or ammonium.