摘要本次毕业设计的题目为xx市某污水处理厂工艺设计——倒置AAO工艺。设计主要任务是根据该市污水性质、排污规模的要求完成污水处理厂初步设计和单项处理构筑物设计。其中污水处理厂初步设计要完成设计说明书一份、污水处理厂总平面图一张及污水处理厂污水与污泥高程图一张；单项处理构筑物设计中，主要是完成主体处理构筑物平面图及剖面图及部分大图样。该污水处理厂工程，规模为7万吨/日。该污水处理厂的污水处理流程为：污水由市政排水管网经格栅由泵房提升进入到涡流沉砂池，进入倒置AAO反应池，进入辐流式二沉池，进入接触池，最后出水；污泥的流程为：从二次沉淀池池排出的剩余污泥进入回流污泥泵房，再由污水泵送入浓缩池，再进入储泥池，由浓缩污泥泵房提升送入污泥脱水间，最后泥饼外运处置。污水处理厂处理后的出水优于国家污水综合排放标准（GB)中的二级标准。所选择的倒置AAO工艺，具有良好的脱氮除磷功能。关键词：倒置AAO工艺，脱氮除磷ABSTRACTThetopicofthisgraduatedesignisaboutthedesignofthesewagetreatmentplantinthedevelopmentareaofeconomyandtechonologyinDalianCity.The1technicsoftheplantistheinvertedAAOprocess.Themaintaskistheprimarydesignoftheplantandtheshopdrawingoftheoxidationditchpond.Thetaskoftheprimarydesignisthatadesignbook、aplanoftheplant、thehighdrawingofthetreatmentofsludgeandsewage;Inthesingledisposalbuilddesign,theharvestisthatthesectionplanedrawing、theplanandsomepartmagnifyingdrawingsoftheinvertedAAOprocess.Theconstructionofthisplantis70000tonperday.Theprocessofthesewageintheplantisthat:Thesewagerunsfrompumphousetosandsinkingpond,entersthepondofsedimentationtank,entersdisinfectionpond,thenenterscalculationtrough,atlastletsout.Theprocessofthesludgeisthat:Surplussludgefromthesedimentationtankentersconcentrationpond,entersdigestionpong,thenitisdehydrated,atlastitiscarriedoutoftheplant.TheoutletwateroftheplantmeetstheleveltwooftheNationalSewageDischargeStandard(GB8978-1996).ThereisaninvertedAAOprocesspreventssludgefromeapending,promotsreleasingphosphorus,andstrengthensanti-nitration.Keywords：TheinvertedAAOprocess,Takingoffthenitrogenandthephosphorus目录摘要...............................................................IABSTRACT...........................................................II前言...............................................................1第一部分设计说明书.................................................2第一章设计概论.....................................................221.1设计任务....................................................21.2设计目的....................................................21.3设计要求....................................................21.4设计数据及材料..............................................31.5处理程度的计算..............................................4第二章总体设计.....................................................52.1工艺比较选择................................................52.2主要生产构筑物工艺设计.....................................162.2.1格栅间................................................162.2.2污水提升泵房..........................................162.2.3沉砂池................................................162.2.4倒置AAO池............................................172.2.5鼓风机房..............................................172.2.6二次沉淀池............................................172.2.7接触消毒池............................................182.2.8回流污泥泵房..........................................182.2.9污泥浓缩池..............................
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