Results 251 to 260 of about 211,468 (308)
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A New Method for Mercury Removal
Biotechnology Letters, 2005A method is described for the removal of mercury from solution by using the off-gas produced from aerobic cultures of Klebsiella pneumoniae M426. Cells growing in Hg-supplemented medium produced a black precipitate containing mercury and sulphur. The ratio of Hg:S was determined as approximately 1:1 by analysis using proton-induced X-ray emission ...
Ashraf M M, Essa +2 more
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Bacterial removal of mercury from sewage
Biotechnology and Bioengineering, 1984AbstractMercury‐resistant bacteria, which are able to reduce mercuric ion (Hg2+) to metallic mercury (Hg0), were examined for their ability to remove mercury from waste‐water aerobically. Growth studies in artificial medium indicated that mercury increases the lag phase, but does not effect the growth rate of these bacteria.
C L, Hansen +3 more
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Modeling Mercury Removal by Sorbent Injection
Journal of the Air & Waste Management Association, 1999Sorbents for removing mercury from flue gases of coal-fired power plants are presently being evaluated due to potential regulation of mercury emissions under Title III of the 1990 Clean Air Act Amendments. Laboratory tests have been conducted to evaluate the adsorption characteristics of potential sorbents and the effects of flue gas constituents on ...
F B, Meserole +4 more
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Mercury removal from petrochemical wastes
Water Research, 1986Abstract The precipitation of mercury as mercury-starch-xanthate is studied. The process is studied in terms of optimum mercury-xanthate molar ratio, of influence of flocculation sedimentation times and of interferences (aluminum, iron, silica, chloride, organic substances and suspended solids).
L. Campanella +3 more
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Chemical Engineering Communications, 2000
Abstract Heavy condensate or oil can contain significant amounts of mercury which causes marketing, processing and environmental concerns. We have developed an effective process to remove all kinds of mercury compounds in heavy condensate. At the conditions tested, the total mercury content in a condensate was reduced from 3,000 to lO ppb, representing
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Abstract Heavy condensate or oil can contain significant amounts of mercury which causes marketing, processing and environmental concerns. We have developed an effective process to remove all kinds of mercury compounds in heavy condensate. At the conditions tested, the total mercury content in a condensate was reduced from 3,000 to lO ppb, representing
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Efficient Condensate Mercury Removal Offshore
Offshore Technology Conference, 2018Abstract There are Oil & Gas installations struggling with Mercury contaminated oil and gas streams. Mercury contaminants are not only toxic if exposed to staff, but it can also cause equipment damages and operational hazards. It is most often seen as an issue in the natural gas, especially in liquefaction operations, but there is an
Tom Manelius, Imane Aguedach
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Mercury in Biological Fluids after Amalgam Removal
Journal of Dental Research, 1998Dental amalgam is the major source of inorganic mercury (Hg) exposure in the general population. The objective of the present study was to obtain data on changes in Hg levels in blood, plasma, and urine following removal of all amalgam fillings during one dental session in 12 healthy subjects.
G, Sandborgh-Englund +4 more
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Electron Removal in Mercury Afterglows
Physical Review, 1951Observations of the electron density, visible and near ultraviolet light intensity, and spectrum associated with a 2800-Mc pulsed electrodeless discharge through mercury vapor have been made. Our results indicate ambipolar diffusion as the principal mechanism of electron removal at low pressure, with attachment becoming increasingly important at higher
P. Dandurand, R. B. Holt
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Using Wet-FGD systems for mercury removal
Journal of Environmental Monitoring, 2005A plan to control mercury emissions to the atmosphere and to establish mercury emission limits has recently been elaborated by the European Commission, making it necessary to devise an efficient and cost effective mercury removal technology. Towards this end wet flue gas desulfurization units appear as a promising option for multi-pollutant control ...
Mercedes, Díaz-Somoano +2 more
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Removal of mercury by adsorption: a review
Environmental Science and Pollution Research, 2015Due to natural and production activities, mercury contamination has become one of the major environmental problems over the world. Mercury contamination is a serious threat to human health. Among the existing technologies available for mercury pollution control, the adsorption process can get excellent separation effects and has been further studied ...
Jin-Gang, Yu +6 more
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