| 摘要 |
PURPOSE:To introduce intermittently the new absorbing agent to the lower part of the layer of absorbing agent and to discharge easily and for a short period of time the old absorbing agent of which the absorption capacity has been saturated, by installing the partitioning part from which the connection pipes for making the liquid to be treated or the absorbing particles pass through are projected to the downward direction so that the layer of absorbing agent may be divided into two sections of the upper and lower parts. |
