PROCESS AND APPARATUS FOR WASTE GAS TREATMENT BY MULTI-STAGE ELECTRON BEAM IRRADIATION

摘要

The appts. is provided with irradiation chambers in multiple stages with the distance (m) between the centres of electron beam generation apts. set greater than a distance calculated in accordance with an equation: X = 2 alpha + tV (where 2 is a distance over which an absorbed dose spreads in the exhaust gas, t is a residence time (second) of the exhaust gas in a non-irradiation range and V is a flow rate (m/s) of the exhaust gas), and the electron beams are caused to pass through each irradiation range. t can be kept in the range of 0.01-0.5 seconds.