Abstract
Experiments were conducted to investigate and control pollutant emission from incineration of Sedum plumbizincicola plants on a laboratory scale using an entrained flow tube furnace. Without control technologies, the flue gas contained 0.101 mg Nm(-3) of Cd, 46.4 mg Nm(-3) of Zn, 553 mg Nm(-3) of NOx, 131 pg Nm(-3) of polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran (PCDD/Fs) and 35.4 mg Nm(-3) of polycyclic aromatic hydrocarbons (PAHs). In pollutants control experiments. Al2O3, CaO, and kaolin were compared as adsorbents and activated carbon was used as an end-of-pipe method for the capture of pollutants. Kaolin, the most effective of the three adsorbents, removed 91.2% of the Cd in flue gas. While 97.6% of the Cd and 99.6% of the PAHs were removed by activated carbon. Incineration may therefore be regarded as a viable option for the safe disposal of the biomass of the zinc and cadmium hyperaccumulator species S. plumbizincicola.
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Air Pollutants / chemistry
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Air Pollution / prevention & control*
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Aluminum Oxide / chemistry
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Benzofurans / chemistry
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Biodegradation, Environmental
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Biomass
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Cadmium / metabolism
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Calcium Compounds / chemistry
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Charcoal / chemistry
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Coal Ash / chemistry
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Dibenzofurans, Polychlorinated
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Gases / chemistry*
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Hot Temperature
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Incineration / instrumentation*
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Incineration / methods
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Kaolin / chemistry
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Metals, Heavy / chemistry*
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Metals, Heavy / metabolism
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Nitrogen Oxides / chemistry
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Oxides / chemistry
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Polychlorinated Dibenzodioxins / analogs & derivatives
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Polychlorinated Dibenzodioxins / chemistry
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Polycyclic Aromatic Hydrocarbons / chemistry
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Sedum / chemistry*
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Sedum / metabolism
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Soil Pollutants / metabolism
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Zinc / metabolism
Substances
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Air Pollutants
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Benzofurans
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Calcium Compounds
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Coal Ash
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Dibenzofurans, Polychlorinated
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Gases
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Metals, Heavy
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Nitrogen Oxides
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Oxides
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Polychlorinated Dibenzodioxins
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Polycyclic Aromatic Hydrocarbons
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Soil Pollutants
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Cadmium
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Charcoal
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Kaolin
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lime
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Zinc
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Aluminum Oxide