| 摘要 |
<P>PROBLEM TO BE SOLVED: To dispense with a facility for the treatment of discharged water which has been used for the treatment of drain staying in a treatment vessel, and to achieve reduction in the cost of a system. <P>SOLUTION: In an adsorption/desorption device, volatile organic compounds contained in a gas to be treated are adsorbed in an adsorbent and the volatile organic compounds adsorbed in the adsorbent are desorpted by using water vapor. The device is provided with a plurality of treatment containers filled with the adsorbent. The following processes are performed successively for one treatment cycle in each the treatment vessel: the processes of adsorption, heating and pressurizing, desorption, depressurizing and cooling, while the heating and pressurizing process and the depressurizing process are performed overlappingly on time axis in two treatment containers. Beside, during the period of performance of parallel heating and pressurizing process and depressurizing process, the process for transporting the drain which is staying in the treatment container in the side of depressurizing process, to the treatment container in the side of heating and pressurizing process is performed. <P>COPYRIGHT: (C)2013,JPO&INPIT |
