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煤制烯烃项目在生产过程当中会产生大量的污水，尤其是在项目原始开工当中产生的污水组分复杂、难降解，污水处理装置需要配合主生产工艺进行不合格污水的处理，来保证其正常投产。本文总结了煤制烯烃项目各装置在原始开工、装置大检修以及装置工艺单元异常波动时，产生的废水水量大、污染物浓度高废水处理的实际经验，为煤制烯烃行业废水处理提供了具体的工艺调整及水量调整方法。“,”The coal-to-olefin project will produce a large amount of sewage in the production process, especially the original construction of the project is complex and difficult to degrade. The sewage treatment device needs to cooperate with the main production process to treat unqualified sewage to ensure its normal production.This paper summarizes the practical experience of large wastewater quantity and high pollutant concentration wastewater treatment during the original start, device overhaul and abnormal process unit, and provides specific process adjustment and water adjustment method for wastewater treatment in coalu0002to-olefin industry.