Mercury pollution: Seeking a quicksilver lining
Journal Article
·
· Chemical Engineering Progress
OSTI ID:201421
Despite major efforts to minimize mercury discharge into the environment, and reduce its uses in manufacturing, processing, and production, the need remains to find better ways of treating and recovering this metal. Part of the problem results from the lack of sophisticated monitoring technology that can detect mercury and its many species and difficulty in developing technologies that can treat all of them effectively. ADA Technologies is developing a continuous emissions monitoring (CEM) system that measures the concentrations of mercury in flue gas. This technology is capable of measuring total mercury, elemental mercury and, by difference, total speciated mercury. At Umeaa University, Umeaa, Sweden, researchers are developing what they hope will be a better method for detecting inorganic mercury compounds in natural-gas condensate. Methods to control mercury in flue gas have been developed primarily for municipal waste combustors and include the direct injection of sorbents and chemicals such as activated carbon and sodium sulfide, and activated carbon beds. Researchers at Oak Ridge National Laboratory are treating Hg-contaminated Department of Energy mixed waste using an advanced leaching process that is able to remove solid Hg species. Researchers at TNO, the Netherlands organization for Applied Scientific Research, Apeldoorn, are exploring the possibilities of vacuum evaporation technology--based on the removal of volatile substances from an inert matrix--for mercury-containing hazardous wastes and soils. Several groups of researchers are setting their hopes on bioremediation as a tool to eliminate mercury in lakes and other bodies of water.
- OSTI ID:
- 201421
- Journal Information:
- Chemical Engineering Progress, Journal Name: Chemical Engineering Progress Journal Issue: 1 Vol. 92; ISSN CEPRA8; ISSN 0360-7275
- Country of Publication:
- United States
- Language:
- English
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