UASBSBR处理果汁废水设计说明书及图纸

湖南科技大学本科生毕业设计（论文）-I-湖南科技大学毕业设计（论文）任务书化学化工学院环境工程系（教研室）系（教研室）主任:（签名）年月日学生姓名:张安国学号:0806050220专业:环境工程1设计（论文）题目及专题：某果汁厂生产废水处理的初步设计2学生设计（论文）时间：自2012年3月1日开始至2012年6月1日止3设计（论文）所用资源和参考资料：污水水量与水质：Q=5000m3/d。水质：CODcr：8000mg/L，BOD5：5000mg/L，SS：4000mg/L，pH:5-12；处理要求：废水经过处理后应符合达到《污水综合排放标准》（GB8978-1996）一级标准，即：CODcr≤100mg/L，BOD5≤30mg/L，SS≤70mg/L，pH6-9。4设计（论文）应完成的主要内容：（1）当前果汁生产废水的来源及处理概述；（2）确定该处理厂的规模和处理工艺；（3）相关构筑物的设计与计算；（4）管网布置及计算；（5）工程概算；（6）设计体会；（7）参考文献。5提交设计（论文）形式（设计说明与图纸或论文等）及要求：（1）编写设计说明书一份，设计说明书按设计程序编写、包括方案的确定，设计计算、设备选择和有关设计的简图等内容。文字应简明、通顺、内容正确完整。（2）图纸至少有4张，其中平面图和高程图必备，平面布置图中应有方位标志。6发题时间：二0一二年三月一日指导教师：（签名）学生：（签名）湖南科技大学本科生毕业设计（论文）-II-摘要近年来，果汁饮料作为新世纪的健康饮品，已成为消费者的追逐热点。随着果汁产业的不断壮大，果汁生产中的高浓度有机废水对环境的污染也越来越受到社会各界的关注。环境是人类生活的载体，本着对环境负责，对人类的负责的原则，果汁生产废水治理已成为每个企业生产运行必不可少的程序。本设计主要分析了当前果汁生产废水治理的热点问题和工艺方法，并从中拟定出适合所持工程设计的方案，设计本着科学实际、效益优先的原则，全面地对预选方案进行了详细的设计计算，该设计为果汁废水，水量为5000m3/d，根据食品生产相关资料，设计选定的安全系数为K2=1.8。原污水中各项指标为：CODcr浓度为8000mg/L，BOD5浓度为4000mg/L，SS浓度为4000mg/L，pH5-12。该废水若不经处理会对环境造成巨大污染，故要求进行处理，要求出水标准按照《污水综合排放标准》（GB8978-1996）一级标准执行，即：CODcr≤100mg/L，BOD5≤30mg/L，SS≤70mg/L，pH6-9。设计内容属于有机物浓度高，水量大，水质波动较大，水中固体干扰物较大的工程，经过对主流高浓度有机废水处理方法的比选和自身所掌握的技术知识，最终确定为“原水预处理+UASB+SBR”的工艺。根据设计计算结果，表明本设计方案结构紧凑简洁，运行控制灵活，抗冲击负荷能力强等特点，根据其他同类设计并投产运行的效果来看，该组合工艺处理性能可靠，具有投资少，运行管理简单等特点。为果汁工业废水处理提供了一条可行的途径。具有良好的经济效益、环境效益和社会效益，综合效益高，有较高的运用价值。关键词：果汁废水；活性污泥；UASB；SBR湖南科技大学本科生毕业设计（论文）-III-ABSTRACTInrecentyears,fruitjuicebeverageasanewcenturyhealthdrinks,havebecomehotpursuitofconsumers.Withthegrowingoffruitjuiceindustry,highconcentrationorganicwastewaterfromthefruitjuicefactorycausedtheenvironmentpollutionisgettingmuchmoreattentions.Environmentisthecarrierofourlives,inthatresponsibleforenvironmentandourpeople,fruitjuiceproductionwastewatertreatmenthasbecomeessentialproceduresforeachenterprise.Thisdesignmainlyanalyzedthehotissuesandprocessesofthefruitjuiceproductionwastewatertreatmentinthecurrent,andfoundasuitableprocesstotreatthekindsofwastewaterintheend.Designedintheprincipleofgivingprioritiestoefficiencyandscience.calculatedcomprehensivelytothepreselectedprograms.Thedesignisforthefruitjuicewastewater:Q=5000m3/d,accordingtotherelevantdataoffoodproduction,IselectedthesafetycoefficientK2=1.8.Indicatorsofrawsewageare:CODcrconcentrationis8000mg/L,BOD5concentrationis4000mg/L,SSconcentrationis4000mg/L,pH5-12.Thewastewaterisdischargedintotheenvironmentwithouttreatmentwillcauseagreatpollution,sowemusttreatit.TheeffluentqualitycomesuptotheⅠ-classcriteriaspecifiedintheIntegratedwastewaterdischargestandard(GB8978-1996)is:CODcr=100mg/L,BOD5=30mg/L,SS=70mg/L,pH6-9.Thisprogrambelongstoorganiccompoundswithhighconcentrationandalargequantity,thequalityofwaterfluctuategreatly,suspendedmatterdisruptlargely,comparedbythemainstreammethodsofhighconcentrationorganicwastewatertreatmentandmyowntechnicalknowledge,eventually,Iidentifiedasrawwastewaterpretreatment+UASB+SBRprocess.Accordingtotheresultsofthedesigncalculations,showsthattheschemeofdesignismuchmorecompactandsimplerinthestructures,flexiblecontrol,shockresistanceability.Accordingtoeffectoftheothersimilardesignsandoperationsshowthat,thiscombinedprocesshasreliableperformance,simpleroperationandmanagementwithlessinvestment,etc.Itprovidesafeasiblewayforthefruitjuiceindustrywastewatertreatment.Ithasabettereconomicbenefit,environmentalbenefitandsocialbenefit.Inaword,thisschemehasahigherapplicationvalueforcomprehensivebenefit.KeyWords:fruitjuicewastewater;activatedsludge;UASB;SBR湖南科技大学本科生毕业设计（论文）-IV-目录第一章绪论····························································································11.1中国果汁产业简介··············································································11.2果汁生产污染物产生情况分析······························································21.2.1果汁加工业废水的特征································································21.2.2果汁加工业其他的环境问题··························································41.3果汁废水治理技术现状·······································································41.4果汁废水的处理方法探究····································································51.4.1好氧处理工艺············································································51.4.2厌氧处理··················································································61.4.3厌氧+好氧处理工艺····································································7第二章设计说明及计算·········································································122.1设计概况························································································122.1.1该果汁废水处理效果·································································122.1.2项目所在地湘潭市气候资料························································122.2处理程度的计算···············································································122.3污水处理构筑物设计及计算································································132.3.1格栅的设计及计算····································································132.3.2沉淀池的设计计算·····································································162.3.3调节池设计计算······························