染整(印染)废水处理工程计算书

安徽工业大学毕业设计（论文）说明书共2页第1页┊┊┊┊┊┊┊┊┊┊┊┊┊装┊┊┊┊┊订┊┊┊┊┊线┊┊┊┊┊┊┊┊┊┊┊┊┊摘要染整废水的处理方法很多，归纳起来大致可分为三类，即物化处理法、化学处理法和生物处理法。其中，主要处理技术是生物化学法和物化处理法。本设计提出采用预处理+混凝沉淀+厌氧水解+生物接触氧化+气浮工艺来处理染整废水。预处理的作用是调节水质水量，改善后续物化生物处理的水质条件；混凝沉淀是利用混凝作用去除水中各种污染物质，有较好的效果；水解酸化主要是把需要通过胞外酶的分解才得以进入微生物体内代谢的不溶性大分子物质转化为微生物可以直接摄取溶解性的小分子有机物质，以破坏难生物降解的大分子结构为主，并适当改善废水的可生化性，同时也能去除少量的BOD5、COD，并起到均化水质的作用；生物接触氧化法是利用微生物对有机物进行降解，以达到去除BOD5、COD的作用；由于本设计要求出水达到一级标准，在经过二沉池后需加设气浮池，气浮池有良好的去除效果。采用此工艺来处理该公司的废水，BOD5、COD、SS和色度的去除率分别是96.73%、95.83%、90.44%和95.5%，能够达到出水水质要求。关键词：染整废水；混凝沉淀；水解酸化；生物接触氧化；混凝气浮安徽工业大学毕业设计（论文）说明书共2页第2页┊┊┊┊┊┊┊┊┊┊┊┊┊装┊┊┊┊┊订┊┊┊┊┊线┊┊┊┊┊┊┊┊┊┊┊┊┊AbstractTherearemanytreatmenttechnologiesfordyeingwastewater,tosumup,itcanbedividedintothreecategories,physicalandchemicaltreatment,chemicaltreatmentandbiologicaltreatmentmethods.Themaintreatmenttechnologiesarethebiochemistryandphysical-chemicaltreatment.Pretreatment--Coagulation--biologicalcontactoxidation--hydrolysisprocesstoDyeingandFinishingWastewaterFlotationwasproposed.Pretreatmentistoregulatequalityandquantityofthewastewater,improvingthequalityoffollow-upbiologicalandchemicalprocessing;Theuseofcoagulationistoremovalthepollutantsfromthewater,andhavegoodeffects;Acidificationbreakmacromoleculesintosmallermoleculesbyextracellularhydrolyses,andimprovethebiodegradabilityofthewastewater,whichcanremovedpartofCODandBOD5atthesametime,andplaytheroleinimprovingthewaterquality;Biologicalcontactoxidationcandegradationtheorganiccompoundsinthewaterbythemicroorganism;Asthedesignrequiretobethefirststandard,Wesetafloatationtankafterthesecondarysedimentationtank.Usethistechnique,theremovalofBOD5、COD、SSandchromaare96.73%、95.83%、90.44%and95.5%,canmeeteffluentqualityrequirements.Keywords:dyeingwastewater;Coagulation;biologicalcontactoxidation;flotation安徽工业大学毕业设计（论文）说明书共2页第1页┊┊┊┊┊┊┊┊┊┊┊┊┊装┊┊┊┊┊订┊┊┊┊┊线┊┊┊┊┊┊┊┊┊┊┊┊┊1前言.................................................................................................................................11.1课题任务与目的.....................................................................................................11.1.1课题题目...................................................................................................11.1.2课题任务...................................................................................................11.1.3目的意义...................................................................................................11.2设计内容.................................................................................................................11.2.1废水水质...................................................................................................11.2.2处理要求...................................................................................................11.3设计要求与成果.....................................................................................................11.3.1设计要求...................................................................................................11.3.2设计成果...................................................................................................22文献综述.........................................................................................................................32.1概述.........................................................................................................................32.1.1印染废水的来源及特点...........................................................................32.1.2印染废水的危害.......................................................................................32.2染整废水处理方法.................................................................................................42.2.1预处理方法...............................................................................................42.2.2生化处理方法...........................................................................................42.2.3物化处理与其他处理技术.......................................................................52.2.4综合处理方法及效果...............................................................................72.3新型印染处理技术的研究.....................................................................................92.3.1膜分离法...................................................................................................92.3.2微波无极紫外光催化氧化+吸附催化氧化工艺技术.............................92.3.3超声波技术.............................................................................................102.3.4高能物理法.............................................................................................102.4印染废水处理技术的发展与展望.......................................................................103工艺方案比较...............................................................................................................113.1提出方案...............................................................................................................113.2方案比较与选择...................................................................................................123.3流程各结构介绍..........................................................................