Treatment method of chemical wastewater containing nitrogen heterocyclic compounds

The invention discloses a method for treating chemical wastewater containing nitrogen heterocyclic compounds, belonging to the field of wastewater treatment. According to the invention, through the combined pretreatment of an electrolysis generating tank and an electrolysis reaction tank, the nitrogen heterocyclic compounds are subjected to ring-opening chain scission to reduce biological toxicity, heterocyclic organic nitrogen is completely converted into ammonia nitrogen, and continuous release of the ammonia nitrogen in the subsequent biological treatment process is avoided; and then anaerobic biological treatment and biological denitrification reaction systems are combined for treatment. The method has the advantages of strong load impact capability, easy operation and control and lowoperation cost, and especially has good treatment effect on chemical wastewater containing nitrogen heterocyclic compounds. 本发明公开了一种含氮杂环化合物化工废水的处理方法，属于废水处理领域。本发明通过电解发生槽和电解反应槽组合预处理，使氮杂环化合物开环断链，降低生物毒性，杂环有机氮全部转化成氨氮，避免后续生物处理过程中氨氮