关键词: 石油化工项目, 初期雨水, 雨水收集, 清污分流

Abstract: For petrochemical projects, the composition of pollutants in initial rainwater is complicated. If initial rainwater is not collected and treated properly, it would pollute the clean rainwater. This paper discusses the differences between the calculation methods for initial rainwater volume from different standards. And it also studies the different collection methods for initial rainwater and control methods for sewage diversion

Key words: petrochemical industry, initial rainwater, rainwater collection, sewage diversion