搜索
陕西理工学院毕业设计第1页共34页某生活垃圾填埋场垃圾渗滤液处理工艺设计作者：张欢乐（陕西理工学院化学与环境科学学院环境工程1102班陕西汉中723000）指导教师：刘瑾[摘要]：垃圾填埋过程中伴随有垃圾渗滤液的产生，垃圾渗滤液是种特别难处理的并且有毒有害的高浓度有机废水,这种废水的处理是当前必须首要解决的问题，若这种有机废水不能得到有效处理不仅会引起地表水、地下水以及土壤的严重二次污染,而且相应的生态系统和人体健康也受到很大威胁。本设计处理量为150吨每天。采用上流式厌氧污泥反应床（UASB)-生物接触氧化池组合工艺，并且对吹脱塔、上流式厌氧污泥反应床（UASB)、生物接触氧化池等主要构筑物进行设计说明和计算。该工艺技术成熟、操作简单占地面积小、投资少、运行费用低、处理效果稳定，经处理后渗滤液经处理后出水水质标准可达到《中华人民共和国污水综合排放标准》（GB8978-1996）中规定一级标准。[关键词]：垃圾渗滤液，氨氮，生物接触氧化陕西理工学院毕业设计第2页共34页ALandfillLeachateTreatmentProcessDesignZhangHuanle(Grade10,Class2,CollegeofChemical&EnvironmentScience,ShaanxiUniversityofTechnology,Hanzhong723000,Shannxi)Tutor:LiuJingAbstract：Landfillprocessisaccompaniedbythegenerationofleachate,landfillleachateisakindofspecialrefractoryandhazardoushighconcentrationorganicwastewater,thewastewateriscurrentlymustfirstsolvetheproblem,ifthisorganicwastecannoteffectivetreatmentnotonlycausesserioussecondarypollutionofsurfacewater,groundwaterandsoil,andthecorrespondingecosystemsandhumanhealtharealsoundergreatthreat.Thedesigncapacityof150tonsperday.Thereactionusingupflowanaerobicsludgebed(UASB)-biologicalcontactoxidationpondcombinedprocess,andthestrippingtower,upflowanaerobicsludgereactorbed(UASB),biologicalcontactoxidationpondsandothermajorstructuresdesignandcalculationinstructions.Thetechnologyismature,easytooperatesmallfootprint,lowinvestment,lowoperatingcosts,stabletreatmenteffect,aftertreatmentthetreatedleachatewaterqualitystandardscanbeachieved,People'sRepublicofChinaIntegratedWastewaterDischargeStandard(GB8978-1996)theprovisionsofthestandards.Keywords:Landfillleachate,Ammonianitrogen，Biologicalcontactoxidation陕西理工学院毕业设计第3页共34页目录引言..............................................................................................................................................................11概述..........................................................................................................................................................21.1垃圾渗滤液特征........................................................................................................................21.2垃圾渗滤液的处理方法介绍..................................................................................................21.2.1生物法处理渗滤液.......................................................................................................21.2.2物化法..............................................................................................................................31.2.3土地法..............................................................................................................................42.设计依据和设计内容................................................................................................................52.1设计背景资料.............................................................................................................................52.2设计水量水质和排放标准.......................................................................................................52.3设计依据.......................................................................................................................................52.4设计原则.......................................................................................................................................53.2处理工艺选择..............................................................................................................................63.2.1工艺流程图......................................................................................................................63.3流程各结构说明..........................................................................................................................73.3.1调节池...............................................................................................................................73.3.2初次沉淀池......................................................................................................................73.3.3氨氮吹脱塔.....................................................................................................................73.3.4上流式厌氧污泥床反应器..........................................................................................73.2.5生物接触氧化池............................................................................................................73.3.6二次沉淀池.....................................................................................................................83.3.7消毒接触池.....................................................................................................................83.3.8污泥浓缩池.....................................................................................................................84处理工艺设计计算....................................................................................................................104.1调节池.........................................................................................................................................104.1.1设计说明...............................................................................