UASBCASS处理啤酒废水的设计

I某啤酒废水处理工艺设计摘要啤酒是世界通用性饮料，是酒精含量最低的饮料酒，而且营养丰富。生产啤酒产生的废水，主要含有淀粉、蛋白质、酵母菌残体、酒花残渣、残余啤酒、少量酒精及洗涤用碱，有机物浓度较高，虽然无毒，但易于腐败，排入水体要消耗大量的溶解氧，对水体环境造成严重危害。随着啤酒行业的迅速发展，啤酒生产产生的大量废水迫切需要适当的处理，以免对环境造成更恶劣的影响。目前，啤酒废水处理的方法多种多样，由于啤酒废水具有良好的可生化性，常常采用以生化为主，生化与物化相结合的处理工艺。本设计处理啤酒废水采用的UASB+CASS法，是一种厌氧消化和好氧处理相结合的工艺。厌氧处理能有效处理高浓度有机废水，不但运转费用相对较便宜，且可回收沼气；能耗低，产泥量少。后接的好氧处理，能弥补厌氧处理的不足，能有效去除氮、磷，保证出水水质达标排放。经过设计计算，本工艺COD去除率达到98.8%，BOD去除率高达99%，处理效果显著，出水达到《污水综合排放标准》GB8978-1996一级标准，且回收了大量沼气，创造了一定的经济效益。关键词：UASB，CASS，啤酒废水，有机废水IIDESIGNOFABREWERYWASTEWATERTREATMENTPROCESSABSTRACTBeeristheinternationalbeverage,isthelowestalcoholcontentalcoholdrinks,withabundantofnutritious.Wastewatergeneratedbyproductionofbeer,containsmostlystarch,protein,yeastresidue,hopresidue,residualbeer,asmallamountofalcoholandwashingwithalkali,organicmatterconcentrationwashigher,althoughnon-toxic,buteasytocorruption,intothewaterbodytoconsumealargeamountDO,ontheaquaticenvironmentcausingseriousharm.Withtherapiddevelopmentofthebeerindustry,beerproductionoflargequantitiesofwasteproperlyaddressedurgentlyneededtoavoidtheimpactoftheenvironmentevenworse.Currently,awidevarietyofbeerwastewatertreatmentmethods,becausegoodbeerwastewaterbiodegradability,oftendominatedbybiochemical,biologicalandphysicochemicaltreatmentprocessescombined.ThedesigntreatmentofbrewerywastewaterusingtheUASB+CASSmethod,isananaerobicandaerobicdigestionprocessofcombining.Anaerobictreatmentcaneffectivelydealwithhighconcentrationorganicwastewater,notonlyoperatingcostsarerelativelycheap,andrecyclablemethane;energyconsumptionislow,producinglesssludge.Followedbyaerobictreatment,anaerobictreatmentcancompensateforthedeficiency,caneffectivelyremovenitrogen,phosphorus,andensurethequalityoftheeffluentdischargestandards.Bydesigncalculations,thisprocessCODremovalrate98.8%,BODremovalrateofupto99%,asignificanttreatmenteffect,thewaterreached,IntegratedWastewaterDischargeStandardGB8978-1996standardlevel,andtherecoveryofalargenumberofmethane,creatingacertaineconomicbenefits.IIIKEYWORD:UASB,CASS,BREWAGEWASTEWATER,ORGANICWASTEWATERIV目录第1章前言......................................................................................1§1.1UASB+CASS工艺的选择........................................................1§1.2UASB+CASS工艺的概述........................................................2第2章设计背景...............................................................................3§2.1项目概况及意义......................................................................3§2.2设计条件.................................................................................3§2.3设计原则.................................................................................3第3章啤酒废水处理方法比较.......................................................4§3.1酸化—SBR法处理啤酒废水..................................................4§3.2UASB—好氧接触氧化工艺处理啤酒废水..............................5§3.3新型接触氧化法处理啤酒废水................................................5§3.4生物接触氧化法处理啤酒废水................................................6§3.5内循环UASB反应器＋氧化沟工艺处理啤酒废水................7§3.6UASB+SBR法处理啤酒废水..................................................8第4章工艺流程的确定.................................................................10§4.1工艺流程选择.........................................................................10§4.2工艺流程说明........................................................................10第5章主要构筑物工艺尺寸设计计算..........................................11§5.1最大流量QVmax设计计算.....................................................11§5.2中格栅工艺尺寸设计计算....................................................11§5.3调节池尺寸设计计算.............................................................12§5.4UASB反应器的设计.............................................................13§5.4.1UASB工艺尺寸设计计算.................................................13§5.4.2进水分配系统的设计........................................................14§5.4.3三相分离器的设计............................................................16§5.4.4排泥系统的设置...............................................................20§5.4.5出水系统的设计计算.......................................................22§5.4.6沼气收集系统的设计计算................................................23V§5.5辐流式沉淀池.........................................................................24§5.6CASS曝气池工艺尺寸设计计算...........................................26第6章啤酒废水处理厂平面布置.................................................32§6.1总平面图布置原则.................................................................32§6.2总平面布置结果....................................................................32第7章工程造价、效益分析.........................................................33§7.1工程投资估算........................................................................33§7.1.1土建部分...........................................................................33§7.1.2设备费用...........................................................................34§7.2成本估算...............................................................................34§7.3效益分析...............................................................................35结论.....................