Semi-technical demonstration of the 3R process |
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| Institution: | 1. Laboratory of Atmospheric Pollution and Pollution Control Engineering of Atmospheric Pollutants, Department of Environmental Engineering, Democritus University of Thrace, 67100 Xanthi, Greece;2. Department of Meteorology and Climatology, School of Geology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;3. Laboratory of Atmospheric physics, Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;4. Department of Physics, University of Girona, 17071 Girona, Spain;5. Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (CSIC), 50059 Zaragoza, Spain |
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| Abstract: | The 3R Process: (1) recovers fly ash and HCl from the flue gases; (2) removes heavy metals from the fly ash by extraction with HCl; (3) and returns a pelletized fly ash to the incinerator. Recoveries of about 90% of the Cd, 65% of the Zn and 20% of the Pb and Cu have been achieved in pilot tests. Full scale experiments proved the thermal decomposition of PCDD/PCDF. The 3R products meet the Swiss elution requirements. |
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