辽宁省某城镇污水处理工艺设计

内蒙古科技大学本科生毕业设计说明书题目：辽宁省某城镇污水处理工艺设计学生姓名：王凯明学号：1276808319专业：环境工程班级：环境12—3班指导教师：陈莉荣教授内蒙古科技大学毕业设计说明书辽宁省某城镇污水处理工艺设计摘要本次毕业设计是以相关的资料为依据,设计一座城镇污水处理厂.其日处理量为10万立方米。由于城市污水的主要成分为有机物,所以本次设计采用了氧化沟工艺.主要任务是工艺流程选择及构筑物设计和计算。该污水处理厂的污水处理流程为：污水经过中格栅，由泵房提升后流过细格栅，进入沉砂池、厌氧池，再进入氧化沟，二沉池，最后消毒排出。在完成污水和污泥处理构筑物的设计计算后,根据平面布置的原则,综合考虑各方面因素进行了污水厂的平面布置。据污水的流量对连接各构筑物的管渠进行了选径、确定流速以及水力坡降,然后进行了水力损失计算。据水力损失计算对污水和污泥高程进行了计算和布置。在最后阶段完成对平面图、高程图及各主要构筑物平剖面图的绘制。关键词：污水处理；厌氧反应池；奥贝尔氧化沟；脱氮除磷；污泥浓缩内蒙古科技大学毕业设计说明书DesignofwastewatertreatmenttechnologyinatowninLiaoningprovinceAbstractThisgraduationprojectistaketherelatedmaterialasthebasis,designsatownsewagetreatmentplant.Itsdayprocessloadinthenearfuturewillbe100,000cubicmeters.Becausethecitysewageprincipalconstituentisanorganicmatter,thereforethisdesignhasusedtheoxidationditchcraft.Themaintaskistheselectionsofprocessflowandthedesignsandcalculationconstructionsusedinprocessflow.Theprocessofthesewagetreatmentplant:sewagecomeacrossthemiddlegrid,sewagewasliftedupbyfinescreens,andthenitentersthelaminarflowsandpool,oxidationditch,secondarysedimentationtank,finallyThewaterfallsoutthroughapipealongwayouttoriver.Afterfinishingcalculationofdesign,accordingtoprincipleoflaying,considerthefactorssyntheticallytoconfirmtheplaceofthesewagefactory.Accordingtoflowvolumeofsewagewecanselectthefoot-path,confirmthevelocityofflowandwaterconservancyslope,thencalculatewaterconservancylosses.Intheend,Floorplan,profileinelevationandtheothermainlystructuresdrawingmustfinished.Keywords：Watertreatment;Anaerobicreactor;Orbaloxidationditch;PhosphorusSewageandNitrogen;Sludgeconcentratio内蒙古科技大学毕业设计说明书目录辽宁省某城镇污水处理工艺设计.......................................................................0摘要.....................................................................................................................0Designofwastewatertreatmenttechnology.........................................................0inatowninLiaoningprovince.............................................................................0Abstract................................................................................................................0第一章概述.........................................................................................................11.1引言..................................................................................................................................11.2设计题目.........................................................................................................................21.3课程设计任务和要求......................................................................................................21.3.1设计水量..................................................................................................................21.3.2设计水质..................................................................................................................21.3.3水文地质资料..........................................................................................................21.3.4厂区地形..................................................................................................................31.3.5气象资料..................................................................................................................31.4设计成果..........................................................................................................................31.5设计依据..........................................................................................................................3第二章污水厂方案可行性研究.........................................................................52.1水质及污水厂情况.........................................................................................................52.1.1进出水水质及水量情况.........................................................................................52.1.2污水水质和水量的变化情况.................................................................................52.1.3工程造价和运行费用.............................................................................................52.1.4当地的各项条件.....................................................................................................52.1.5运行管理.................................................................................................................62.2工艺方案分析及选择.....................................................................................................62.2.1工艺流程.................................................................................................................6内蒙古科技大学毕业设计说明书2.2.2技术比较.................................................................................................................72.2.3结论比较.................................................................................................................7第三章污水处理构筑物设计计算.....................................................................93.1泵前中格栅.....................................................................................................................93.1.1设计要点...................................................