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32Vol124No.1219981[],,,,50m3/d300m3/d[],,,,,,,;(1),;,,,11:(1):(2):(3):(4):33Vol.24No.1219982221,:(1),(2),,(3),(4),,50%(5),,,,,(6),;,11(1)(2)k110-7m/s;,(3),,(4),,,SS(5):()(6),:(6);(12)(7),(8)()21(1):(),,::=16mm;:q=115310m3/(m2h);t=115210h(,1224h)(2)1),:34;62)():BOD5200mg/L;34Vol124No.12199827519619112622153304157197150120122BOD5SSNH-NBOD5SSNH-N881628119185118951938718387192311403415931341214024104141521961841151362801291591751121SS120mg/L:Na10g/(m2d);:Nl15g/(md)(),:Nw70L/(md)3),;PVC,,(3),,,,,ZLJ,(4)50m3/d()19911993,,BOD5=304157mg/L,SS=197150mg/L,BOD5=12140mg/L,SS=24104mg/L,NH+4-N=14152mg/L,95193%,87183%87192%(1)199711300m3/d,,BOD510mg/L1121,,31,,41,,51:11001537:(024)23890456(O):1998212691841911411153+4+41(mg/L)(mg/L)(%)(g/(m2d))1991110199211019921111993184Vol124No.121998HighPureWaterandUltraVioletDesinfectionShenJian(40)WaterSupplyProcessinBerlinXiuChunhaietal(30)DesignofWastewaterReclamationandReusebyUndergroundFiltrationChenShaojunetal(32)StudyontheVortexGritChamberinRoundShapeShaoLinguang(38)Coagulation2Sedimentation2AerobicProcesstoTreatWastewaterofDetergentProductionPuChengetal(44)arangeof150750/ml,ofvorticellainrangeof100650/ml,ofaspidiscainrangeof30600/mlandoflitonotusinrangeof120/mlrespectively;and(4)theBOD5ofef2fluentdecreasewiththeincreasingofthenumbersofciliates,however,whenthenum2bersfalltoarangeof200400/mltheeffluentBOD5willincreaseandwhenthenumbersexceed400/mlthequalityoftheeffluentwillbeimproved.Vol124No112December1998WATER&WASTEWATERENGINEERINGResearchandExperimentonTreatmentofNitriteinWaterworksHuangXiaodongetal(23)NaturalPurificationbyWaterInterchangeofEstuarineAreaandLakeinXiammenXieXiaoqing(26)Abstract:Theutilizationofwaterresourceswillbeimprovedandtheinstantcollec2tion,treatmentandreuseofwastewaterwillbeimplementedatonceifthedomesticwastewatercouldbereclaimedbyundergroundfiltration(UF)processandreusedfornon2portablepurpose.Theworkingprinciple,flowschemeanddesignoftheUFprocessandtwodemonstrationUF2facilitieswithcapacitiesof50and300cubicmetersperdayarepresentedinthispaper.ReformofWaterDistributionNetworkinOldUrbanAreaLuoHuiyun(35)Abstract:Asystematicstudywasconductedonaprocesscombinedwithcoagulationandsedimentation2anaerobic2aerobictotreatsyntheticdetergentwastewaterwithhighlevelofLAS.Inthestudy,ferricchloridewasmainlyusedascoagulant,anaerobicfilterpackedwithceramicmediaandactivatedsludgereactorwereusedasanaerobicreactor