The production principle of chlorothalonil,composition o f waste gas and treatment situation were analyzed.Comprehensive treatment of was te gases containing cyanogen and chlorine were put forward.

• 通过分析百菌清的生产原理、废气组成及治理状况,阐述了以废治废、综合治理高浓度含氰废气和含氯废气的依据、流程及预期效果。