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1、摘要啤酒工业在我国迅猛发展的同时,排出了大量的啤酒废水,给环境造成了极大的威胁。本设计为木兰县金桥啤酒厂啤酒废水处理设计,设计程度为初步设计。啤酒废水水质的主要特点是含有大量的有机物,属高浓度有机废水,故其生化需氧量也较大。该啤酒废水处理厂的处理水量为10000m3/d,不考虑远期发展。原污水中各项指标为:BOD浓度为1800mg/L,COD浓度为2200mg/L,SS浓度为120mg/L。因该废水BOD值较大,不经处理会对环境造成巨大污染,故要求处理后的排放水要严格达到国家《啤酒工业污染物排放标准》(GB19821—2005),即:BOD≤20mg/L,
2、COD≤80mg/L,SS≤70mg/L。本设计工艺流程为:啤酒废水→格栅/污水提升泵→调节沉淀池→UASB反应器→CASS池→巴氏计量槽→处理出水工程实践表明UASB+CASS组合工艺对啤酒废水是一种有效的处理工艺,且该处理工艺具有结构紧凑简洁,运行控制灵活,抗冲击负荷,污泥量小等特点。关键词:啤酒废水UASBCASS72AbstractWiththerapiddevelopmentofbreweryindustryinChina,morebrewerywastewaterisdischarged,whichendangersenvironmentext
3、remely.Thisdesignisonebeerwastewatertreatmentofmulanxianjinqiaobrewery.Thedegreeofthedesignisinapreliminaryphase.Themaindistinguishingfeatureofthebeerwastewateristhatitcontainsthemassiveorganicmatters,soitbelongstothehighconcentrationorganicwastewater,thereforeitsbiochemicaloxygen
4、demandisalsohigh.Thewaterwhichneedstotreatmentinthebeerwastewatertreatmentplantis10000,regardlessofthespecifiedfuturedevelopment.Varioustargetintherawwastewateris:theconcentrationofBODis1800mg/L,theconcentrationofCODis2200mg/L,theconcentrationofSSis120mg/L.Forthebeerwastewater'sBO
5、Dishigh,itcouldpollutetheenvironmentifdrainedbeforetreatment,soitrequestthebeerwastewaterwhichdrainedmustbestrictlytreatedtothe《beerindustrystandardsfordischargeofwaterpollutants》(GB19821—2005)inthecountry,whichisasfollowing:BOD≤20mg/L,COD≤80mg/L,SS≤70mg/L.Thetechnologicalprocesso
6、fthisdesignis:Beerwastewater→Screens/Thesewageliftpump→Adjusttraps→ReactiontankofUASB→TankofCASS→Papmeasuringtank→TreatmentwaterTheengineeringpracticeshowsthattheUASB+CASScombinationprocessonbeerwastewaterisakindofeffectivetreatmentprocess,andtheprocessingtechnologyhasthecharacter
7、isticofcompactstructuresimple,flexibleoperationcontrol,impactresistantload,smallamountofsludge,etc.Keywords:beerwastewaterUASBCASS72目录摘要IABSTRACTII第1章概述11.1基本设计资料11.1.1设计题目11.1.2设计背景11.1.3基本资料11.2设计内容、原则21.2.1设计依据及规范21.2.2设计内容21.2.3设计原则3第2章工艺方案论证、选择42.1水质分析42.1.1啤酒工业废水的来源及水质特征42.1
8、.2处理程度52.2工艺选择52.2.1方案对比52.2.2工艺流