METHOD OF TREATING PHENOL-CONTAINING WATER AND TREATING APPARATUS

摘要

The present invention relates to a method and an apparatus for treating phenol-containing water in which, in an azeotropic distillation column in which phenol-containing water is subjected to azeotropic distillation in the presence of an azeotropic agent for water, the phenol concentration in waste water is stably reduced to a low concentration without requiring a liquid-liquid extraction apparatus (extraction distillation column) and the like in the downstream side, by disposing an automatic gas chromatographic apparatus in a waste water line from an column top stationary separation-tank disposed on a top portion of the azeotropic distillation column and then by controlling the operation of the azeotropic distillation column by continuously measuring and monitoring the phenol concentration in the waste water by the automatic gas chromatographic apparatus and promptly detecting a change in the phenol concentration in the waste water.