养猪场废水处理工艺设计

长春工业大学毕业设计1中文摘要本设计的任务是养猪场污水处理工程的设计，要求是对污水处理进行整体的设计与规划。所提供的污水厂进水水质为：Q=3000m3/d,BOD5=3900-4900mg/L，CODcr=9000-13000mg/L，SS=3200-3500mg/L，NH3-N=450-650mg/L，pH=9.0～11.0。要求经过处理后出水水质为：BOD5=150mg/L，CODcr=400mg/L，SS=200mg/L，NH3-N=80mg/L，pH=6.0～9.0，最终满足《畜禽养殖业污染物排放标准》（GB18596—2001）要求。设计中采用的主要污水处理工艺是：氨吹脱——厌氧反应——生物接触氧化——消毒——出水。所涉及的具体工作是对工艺流程中的各个构筑物进行计算，确定其尺寸，对处理工艺中需要的各种设备进行选型，并确定污水处理场的平面和高程布置。本设计还对污水处理场的建设和运行费用做了初步的估算。最终的设计成果还有多分以CAD软件绘制的工程图纸，包括：污水场平面布置图、污水场高程布置图以及几个主要的处理构筑物。关键词：养猪污水，氨吹脱塔，UASB反应器，生物接触氧化池。长春工业大学毕业设计2PigfarmwastewatertreatmentengineeringdesignAbstractThisdesigntaskisraisingpigfactorywastewatertreatmentengineeringdesign,therequirementisonwastewatertreatmentplantforoveralldesignandplanning.Thewastewatertreatmentplantisprovidedfor:Q=incomingwater3000m3/d,BOD5=3900-4900mg/L,CODcr=90-13000mg/L,SS=32-3500mg/L,NH3-N=450-650mg/L,pH=9.0~11.0.DemandforprocessedeffluentBOD5=150mg/L,andCODcr=400mg/L,SS=200mg/L,NH3-N=80mg/L,pH=6.0~9.0Finallymeetthelivestockandpoultrybreedingstandardsforpollutantsdischarge(GB18596-2001)requirements.Designthemajorsewagetreatingtechnologyis:ammoniatoremove-anaerobicreaction-biologicalcontactoxidation-disinfection-outofthewater.Thespecificworkisinvolvedinvariousstructuresinprocessiscalculated,determineitssize,toprocessallkindsofequipmentneededinselectionanddeterminesewagetreatmentplant,theplaneandelevationlayout.Thisdesignofsewagetreatmentplantconstructionandoperationcostsmakesapreliminaryestimates.ThefinaldesignresultsandpointstoCADsoftwarerenderingengineeringdrawings,including:sewageplantlayout,sewageplantelevationlayoutandseveralmainprocessingstructures.Keywords:Pigsewage,Ammoniatoremovetower,UASBreactor,Biologicalcontactoxidationponds.长春工业大学毕业设计3目录第一章绪论...................................................................11.1养猪污水的来源............................................................11.2养猪污水的特点............................................................11.3养猪污水对环境的危害......................................................11.4养猪污水的资源化..........................................................21.5养猪污水的处理方法........................................................2第二章方案设计说明.............................................................72.1工程设计资料................................................................72.1.1设计资料................................................................72.1.2设计依据................................................................72.1.3指导思想................................................................72.2养猪污水处理工艺流程的设计..................................................82.2.1方案选择...............................................................82.3处理工艺流程设备说明.......................................................112.3.1格栅间................................................................112.3.2沉砂池................................................................112.3.3调节池................................................................112.3.4初沉池.................................................................122.3.5中间水池..............................................................122.3.6氨吹脱塔..............................................................122.3.7上流式厌氧污泥床（UASB）...............................................132.3.8生物接触氧化池.........................................................142.3.9二沉池................................................................152.3.10污泥贮池..............................................................152.3.11污泥浓缩池............................................................152.3.12污泥脱水..............................................................162.3.13粪渣干化场............................................................162.3.14消毒池...............................................................162.3.15计量堰...............................................................162.3.16其他附属构筑物........................................................162.3.17主要设备..............................................................17第三章设计计算................................................................183.1格栅.......................................................................183.1.1格栅设计数据...........................................................183.1.2格栅设计计算...........................................................193.2沉砂池.....................................................................243.2.1沉砂池设计主要原则.....................................................243.2.2平流式沉砂池的设计参数.................................................243.2.3设计计算...............................................................243.3调节池.....................................................................29长春工业大学毕业设计43.3.1设计数据..............................................................293.3.2设计要点与设计要求.....................................................293.3.3设计计算..............................................................303.4初沉池的设计...............................................................323.4.1简介...................................................................323.4.2沉淀池的一般设计原则及设计参数...