焦化厂污水处理毕业设计

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1、焦化厂污水处理站工艺设计 1 焦化厂污水处理站工艺设计 摘要：本设计为 25000m3/d 焦化厂污水处理站设计。该厂污水的主要来源是焦化废水，焦化废水的 主要污染物质有：COD 、BOD、氰化物、氨氮、悬浮物、苯酚及苯系化合物等，焦化废水的特点 是成分多，组分复杂、浓度高、毒性大、难降解，所以本设计采用具有良好去除有机物、氨氮等的 氧化沟法。该污水处理站的处理工艺流程为：污水粗格栅进水泵房细格栅曝气沉砂池奥 贝尔氧化沟二沉池消毒池出水。焦化废水中各污染物经此工艺流程处理后均达到了污水综 合排放标准 （一级，GB8978-1996）标准。 关键词：焦化废水；氧化沟；工艺设计 Abstract：

2、This design is 25000m3 / d coking plant wastewater treatment plant design. The plant is the major source of sewage wastewater, coke plant wastewater are the main pollutants: COD, BOD, cyanide, ammonia, suspended solids, phenol and benzene compounds, coking wastewater is characterized by multi-compon

3、ent, component complex, the concentration high, toxic, biodegradable, so the design uses a good removal of organic matter, ammonia and other oxidation ditch. Treatment of the sewage treatment station process: sewage water coarse grid Water pumping station Fine grid Aerated Grit Chamber Orbal oxidati

4、on ditch Secondary settling tank Disinfection tank disinfected pool water. The pollutants in coke plant wastewater treatment by this process has reached the “Integrated Wastewater Discharge Standard“ (a, GB8978-1996) standard. Keywords：Coking wastewater; Oxidation ditch; Process Design 焦化厂污水处理站工艺设计 2 目录 1 绪论5 1.1 选题背景.5 1.2 处理焦化废水目的及意义5 1.3 焦化废水的处理方法.6 1.3.1 物化法