日處理2900立方米焦化厂氨氮废水处理系统毕业设计稿.docVIP

日处理2900立方米焦化厂氨氮废水处理系统 摘 要 /d, 焦化废水的主要污染物有氨氮，酚水等。出水水质要求达到国家二级标。处理后的水直接排出厂外。多年来，已经研究出废水处理的各种方法。大多数情况下需要把这些处理方法联合使用或按顺序使用。所要求的具体处理顺序取决于未处理的污水的水质和所要求的出水水质。废水处理方法的主要目的是生产出能排放而不能对环境造成严重影响的水。多种因素综合考虑，本设计主要工艺流程为：隔油+气浮+萃取+生物脱氮处理。其中隔油和气浮主要去除废水中的油和悬浮物。萃取主要是去处酚污染物。采用SBR工艺去处氨氮污染物。设计主要构筑物有调节池、隔油池、气浮系统、萃取系统、SBR脱氮处理系统、污泥浓缩池、污泥消化池和接触消毒池等。 本设计包括：设计任务书、设计说明书、设计图纸。其中设计图纸包括: 平面布置图、高程布置图、泵站施工图、气浮池工艺图、萃取系统图、污泥浓缩池、SBR工艺图、污泥消化池、接触消毒池工艺图。 关键词：Abstract The design is Baotou Steel production wastewater, the design capacity of 2900m3/d. the main wastething of coking wastewater is NH4-N,phenol.effluent quality to achieve 2 emissions standards. Treated water directly into the plant.Over the year,a variety of methods have been developed for the treatment of wastewater. In most situations,a combination or sequence of methods will be needed. The specific sequence requird will depend on the quality of the untreaeed wastewater and the desired quality of the produce. the principal objective of wastewater treatment is to produce an effluent that can be discharged without causing serious environmental impacts. The main process :Grease traps, air flotation, the extraction process, biological denitrification Process. Design of the main structure : a grease trap, air flotation systems, extraction systems, Application of SBR Well Denitrification structures, sludge thickening tank, sludge digestion tank and disinfection contact tank. The design includes : design, design specification, design drawings. And Design drawings, which include treatment plant layout plan, the sewage flow elevation layout, construction drawings pumping station, flotation tank technology map, sludge thickening tank, Technology Application of SBR Well aeration tanks, sludge digestion pool. Keywords : Flotation system;Extraction system; Application of SBR Well process; Sludge thickening; Sludge Digestion 目 录 中英文摘要 绪言…………………………………………………………………………………………...1 第一章 设计原始资料……………………………………………………………………….2 1.1 设计任务和设计参数………………………………………………………