果汁加工废水处理实践马维君

　　　200927果汁加工废水处理实践马维君(,　710075)　:针对果汁厂污水处理问题,对运行中的废水处理系统进行了研究和分析。采用分质分类组合工艺处理果汁废水,COD去除率达到98.46%,出水为92.34mg/L;SS去除率达到98.06%,出水为17.5mg/L。同时,洗果废水经低成本处理后直接回用,大大降低了生产成本。实践证明,以上处理方法是可行的,取得了重大的环境、社会和经济效益。:废水;水质;水量;物化法及生化法处理工艺TREATMENTOFWASTEWATERFROMPROCESSINGFRUITJUICEMaWeijun(ShaanxiTongdaFruitJuiceGroupCo.,Ltd,Xi′an710075,China)Abstract:Regardingtothesewagedisposalproblemofjuicefactory,itisputthe“separatingtreatmentofwastewater”intopracticeaftertheresearchandanalyzingtherunningsewagedisposalsystem.Byusingthistechnology,theremovalrateofCODcanreach98.45%,CODoftheeffluentis92.34mg/L,theremovalrateofSSis98.06%,andSSoftheeffluentis17.5mg/L.Meanwhile,thewastewaterfromfruitcleaningcanbeuseddirectlyafterlowcosttreatment,thislowertheproductioncostobviously.It'sprovedbythepracticethatthetechnologyisworkableandthegreatbenefitsofenvironment,societyandeconomyareobtaied.Keywords:wastewater;waterquality;quantityofwater;physicochemical-biologicaltreatmentprocess　　5000t/h,。,,,,,,。1　1。1　5DOI:10.13205/j.hjgc.2009.s1.109　　　200927　　1,COD,,,。COD。,,,,。,,。,,。,,。2　2.1　苹果冲洗水的处理工艺流程2。5mm,,0.3mm,,,。,,,。0.65。2.2　高浓度废水的处理工艺流程3。2　3　　　;0.3mm;、,UASB,UASB,,,。、UASB、,,。。。1.2。3　3.1　苹果冲洗水处理工艺的技术参数1),6　　　2009275%～10%,20～35mg/L。2)≥2h,。3)6～8m/h。15L/(s·m2),5min。3.2　高浓度废水处理工艺的技术参数1),,,。2)12h,,,。3)pH4～6,,,pH7。,,pH,。4)USBA,:COD5kg/(m3·d)。USBA20h。USBA。USBA,,,。5),。10h。,20∶1。6),12h。,5∶1。7),q=1.0m3/(m2·h),3h。4　1。1　4m×8m×4.5m12.5m3/(m2·h)24m×8m×4.5m112hUASB7.5m×7.5m×10m4COD5kg/(m3·d)26m×6m×5.5m110h26m×6m×5.5m112h8m×8m×5m11.0m3/(m2·h)8m×4m×4.5m1128m35　2。2　SS/(mg·L-1)/(mg·L-1)/%6000480020.00480050090.005005090.0099.17　　3。6　1)、、,。2),。3　COD/(mg·L-1)/(mg·L-1)/%BOD/(mg·L-1)/(mg·L-1)/%SS/(mg·L-1)/(mg·L-1)/%600057005.00350033255.00900810105700513010.0033252992.510.0081064820.005130410420.002992.5239420.00UASB41041026752394598.575648194.470.001026307.870.00598.5179.5570.00194.458.3270.00307.892.3470.00179.5553.86570.0058.3217.570.0098.4698.4698.06(148)7　　　200927[J].,2005,113(2):1-3.[31],,,.[J].,2005,28(1):60-62.[32],,,.[J].,2006,29(2):168-171.[33],,.PASS[J].(),2005,2(2):122-124.[34],,.[J].,2008,28(9):25-27.[35],,.--[J].,2008,31(4):432-434.[36],,.[J].,2007,1(5):60-64.[37]BensadokK,BelkacemM,NezzalG.Treatmentofcuttingoil/wateremulsionbycouplingcoagulationanddissolvedairflotation[J].Desalination,2007,(206):440-448.[38]PeterKH,GeoreyWB,CynthiaAM.Thefutureforelectro-coagulationasalocalizedwatertreatmenttechnology[J].Chemo-sphere,2005,(59):355-367.[39]GuohuaChen.Electrochemicaltechnologiesinwastewatertreat-ment[J].SeparationandPurificationTechnology,2004,(38):11-41.[40]ScottWadePowell.Methodforelectrocoagulationofliquids:US,6488835[P].2002.[41]RobertJ.Herbst.Highvolumeelectrolyticwatertreatmentsys-temandprocessfortreatingwastewater:US,0136686[P].2003.[42]Edgarrenzler.Processfortheseparationofemulsionscontainingwaterasacontinuousphaseanddevicefortheapplicationoftheprocess:US,4728410[P].1988.[43]PabloCañizares,FabiolaMartínez,JustoLobatoetal.Break-upofoil-in-wateremulsionsbyelectrochemicaltechniques.Jour-nalofHazardousMaterials.2007(145):233-240.[44]PabloCañizares,FabiolaMartínez,CarlosJiménez,etal.Coagu-lationandelectrocoagulationofoil-in-wateremulsions[J].JournalofHazardousMaterials,2008,(151):44-51.[45]PabloCañizares,CarlosJiménez,FabiolaMartínez.ThepHasakeyparameterinthechoicebetweencoagulationandelectrocoagu-lationforthetreatmentofwastewaters[J].J.Hazard.Mater,2008,73.[46]KobyaM,CiftciC,BayramogluM,etal.Studyonthetreatmentofwastemetalcuttingfluidsusingelectrocoagulation[J].Separa-tionandPurificationTechnology,2008,(60):285-291.[47]MohamedTir,NadjiMoulai-Mostefa.Optimizationofoilremov-alfromoilywastewaterbyelectrocoagulationusingresponsesur-facemethod[J].JournalofHazardousMaterials,2008,158:107-115.[48],,.[J].,2008,18(3):49-52.[49],.[J].,2005,11(2):115-118.[50],,,.[J].,2005,31(6):9-11.[51],.[J].,2006,26(2):24-26.[52],,.[J].,2007,(19):48.[53].-:,98244191[P].1999-11-24.[54].:,97209122.X[P].1998-9-30.[55],.:,02278281.8[J].2004-8-11.[56],,.[J].,2006,26(8):1265-1270[57],,,.[J].,2006,27(3):448-451.[58],,,.[J].,2007,33(9):62-64,67.[59]CambiellaJ,BenitoM,PazosC.Centrifugalseparationefficiencyinthetreatmentofwasteemulsifiedoils[J].ChemicalEngineer-ingResearchandDesign,2006,84.69-76.　　100081　E-mail　[e-mail]009-03-09(7)　　3)UASB+,,,。,。4)600。1.85。　　710075　　E-mail　[e-mail]2008-09-16148