Phenol and ammonia wastewater recycling treatment method by using single tower for performing de-acidification and de-amination simultaneously

The invention relates to a treatment method for wastewater containing phenol and dissoluble amine salts produced in chemical industry production, and particularly relates to a phenol and ammonia wastewater recycling treatment method by using a single tower for performing de-acidification and de-amination simultaneously. By means of an energy-saving technology which uses a single device for decomposing amine salts and achieving separation and purification, the device investment is reduced; and the energy recycling is achieved by using a differential pressure rectification technology, so that the energy consumption is reduced. Specifically, a de-acidification and de-amination coupling tower is used, and side withdrawing and differential pressure rectification technologies are utilized for achieving a simultaneous de-acidification and de-amination process and recycling ammonia and phenol in coal gasification wastewater, and accordingly, the method is energy saving and emission reducing, the technological process is simplified simultaneously, and the operation difficulty is reduced. According to the phenol and ammonia wastewater recycling treatment method by using the single tower for performing de-acidification and de-amination simultaneously, technical problems of large device investment and high energy consumption in phenol and ammonia wastewater recycling in a coal gasification process are solved, the technological process is simplified through the coupling of devices, and high economic and social values are provided.