高含盐废水生物处理技术探讨

刘正　　　废水含盐较高给生物处理带来一定的难度。研究表明,经过驯化后微生物可以在高含盐废水的条件下达到去除有机物的目的。废水中盐浓度的变化是导致高含盐废水生物处理失败的关键,因此在流程的选择和参数的控制上应注意控制盐浓度波动的范围,以减少冲击。　高含盐废水　生物处理　驯化　控制　　,、。、、。,,。,,,,。,。,,[1]:①,;②;③;④,。,,(1%),,、,。,,。,。,。,,,,,。CaCl2NaCl,,。1　,1%,1%～2%。。[2]。CaCl21%,,,、、,。3%。,,,,。3,12。1　CaCl2/%　　　　COD/mg/LBOD/mg/LCOD/mg/LBOD/mg/LCOD/%BOD/%1.0　689330137　880.197.62.0177098445010374.689.53.0172395635610779.388.82　CaCl2/%　　　　COD/mg/LBOD/mg/LCOD/mg/LBOD/mg/LCOD/%BOD/%1.51078　62327474.53.02573151249410580.893.04.01718101635312579.487.754　　　　Vol.27　No.11　2001　　12,2,。NaCl[3],,,80%。,,,。3。3,,。3　NaCl/dNaCl/%/mgO2/(gVSS·h)20.82.5192.312.8902.530.02　,。6%,9%,10%,。,,、,。,,,。,,,,。,。1,CaCl2[2]。CaCl22%3%,4.18μgTF/(mgVSS·h)0,COD,,。,,4。1　CaCl24　NaCl/%0136810　　4,,,。3　,。3.1　,、、、、、。(1)。,、,,。(2)。,。CaCl2,。,CaCl240%～50%,,20g/L[4]。,、、。、。,,。,10m3/(m2·h),。,　Vol.27　No.11　200155　　　,,。,,。NaCl,CaCl2,,,CaCl2,NaCl。(3)。,,,NaCl。,CaCl2,,、。CaCl2,,,。(4)。CaCl2,,。50g/L。,。3.2　,。,,,。3%～5%,。,,,,。,CaCl22%3%,0,COD,,CODCOD,(2),。,,。,:①、,,。②CaCl2,,。③,,,,。4　SS。SS,,,。,,50mL,,SS。COD《——》(GB11914-89),“1000mg/L,COD250mg/L,。”15000mg/L,COD100mg/L,。[5～8],、、、,,,。参考文献1　...1985.183～1872　,,.CaCl2pH.,1982,2(3):17～233　,,..,1989,9(3):142～1484　..19995　,.COD.,1987,7(1):48～536　,.COD.,1987,7(3):152～1597　.COD,19898　,.COD.1988:10001314　:[phone]-2219　(0)13601036772　:2001-1-2156　　　　Vol.27　No.11　2001WATER&WASTEWATERENGINEERINGVol.27No.11November2001CASSProcessTreatingBeerBreweryWastewaterinHigh-ColdAreaZhouGang(46…………………………………………)Abstract:CASSprocesshasbeenadoptedtotreatbrewerywastewaterinNorth-EastChina,ahigh-coldclimatearea.Thedesign,trialrunandoperationofthisfacilityarepresentedinordertoemphasizethespecialattentionsandmeasuresindesign,runandmanagementofaWTPinhigh-coldclimate.StudyonInorganicMembraneTreatingBlackLiquidinPaper-MakingProcessLiuGuanglietal(49………………………)Abstract:Studiesonthefiltrationwerecarriedouttotreatblackliquidfrompapermakingprocessby0.2microm-eterand0.8micrometerinorganicmicro-porousmembranes.Theexperimentalresultsshowedthatthepermeatedflowratewasnotproportionaltothetemperature,andtheseparatedorganicsubstanceswereexpressedonthetrappingoflignin.TherearenotrappingofNawasobservedbytheinorganicmicro-porousmembranes,butfairrejectedratemorethan80%wasobtainedforsilica.BiologicalTreatmentofWastewaterwithHighSaltConcentrationLiuZheng(54……………………………………………)Abstract:Thewastewatercontaininghighconcentrationofsolublesaltsisdifficulttotreatbybiologicalprocesses.Itisdemonstratedinthisstudythatthedomesticatedmicrobescaneffectivelyremoveorganicpollutantsinthewastewa-terathighsaltconcentration.Variabilityofsaltconcentrationisakeyinfluencingfactorforbiologicaltreatmentofhighsaltwastewater.Therefore,attentionshouldbepaidtocontroloffluctuationofsaltconcentrationandreductionofsockloadsonthebasisofcharacteristicsofthewastewaterinselectionoftreatmentprocessesandparameters.WaterBalancingTankforSwimmingPoolZhaoXin(57………………………………………………………………………)Abstract:Thewaterbalancingtankinswimmingpoolwatercirculatingsystemwasdiscussed.Theauthorpointedoutthatthetankisnotabsolutelynecessaryinanycase.Forconcurrent,counter-currentandmixedcurrentwatercircu-latingsystem,thewater-levelbalancingtank,flowratebalancingtankandoverflowreturn-boxshallbeadoptedrespec-tively.DiscussiononFireandCoolingWaterSysteminOilcanAreaYongJunbaoetal(62…………………………………………)Abstract:IncalculationofbasicparametersrelatedtowaterdischargeoffireandcoolingwatersysteminoilcanareasomeconflictingwillbeincurredinthestipulationsoftheDesignNormofBuildingFireSystemandtheDesignNormofOilcanArea.Theauthorsdiscussedthisproblemandcallonanaccordantstandard.Besidesthreecommonusedcoolingwatersprayingarrangementsarecompared.FeasibilityAnalysisonGrey-waterReuseinResidentialAreaLianXiaoyingetal(67…………………………………………)Abstract:Chinaisbeingdisturbedbyseriouswaterenvironmentpollutionandwaterresourceshortage.Tosolvethesetwoproblems,wastewaterreuseisoneofthebestoptionsbecausethiswaycanalleviatebothwaterpollutionandreplenishwaterresourceatsametime.Thispaperanalyzesthefeasibilityofgrey-waterreuseinresidentialarea,intherespectsofwaterqualityandquantitysides,watertreatmenttechnologiesandthepublicreceptivityarealsodealtwith.Basedonacasestudyofintegratedeffectsofgrey-waterreusesystem,itisconcludedthatwaterreuseintheresidentialareainthiscountryhasabrightperspective.DesignandEquipmentofCompressedAirSysteminWaterworksYouDingpeng(76…………………………………………)Abstract:Theprocessdesignofcompressedairpipelinesysteminwaterworksisdiscussedandproblemsrelatedtoairpurityandequipmentsselectionwereemphasized.Somepracticalexamplesweregiventoexplaintheprinciplesandviewpointsindeal.NeuralNetworksControlMethodforCoagulantDosageBaiHuaetal(83……………………………………………………)Abstract:Internalmodelcontrolsystembasedonneuralnetworkshashighperformanceofself-learningandadapta-tion.Itcanrealizetheforecastingcontroltononlinearandtimedelaysystems,anditissuperiortothetraditionalcontrolmethod.Thepaperaimstostudytheapplicationofthismethodtowatertreatmentcoagulationcontrol,toselectthemaindatainfluencecoagulationdoseandcoagulationeffectonthebasisofanaly