| 摘要 |
A method for reactivating carbon beds is provided which is applicable to carbon beds used in purifying industrial wastes such as filtering water recovered from sewage. The method involves first adding either hydrochloric acid or a hydroxide of an alkali metal to the bed containing some of the water. The water and hydrochloric acid or alkali metal hydroxide are thoroughly mixed to distribute the acid or hydroxide throughout the carbon bed. The mixture of acid or hydroxide and water is retained in the carbon bed for sufficient time to reactivate the carbon. Thereafter the acid or hydroxide and water are removed from the carbon bed.
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