不同有机负荷下好氧颗粒污泥的特性王芳

整理文档很辛苦,赏杯茶钱您下走!

免费阅读已结束,点击下载阅读编辑剩下 ...

阅读已结束,您可以下载文档离线阅读编辑

资源描述

王 芳, 杨凤林, 张兴文, 刘毅慧(大连理工大学环境与生命学院,辽宁大连116024)   : 采用气升式内循环间歇反应器(IC-SBAR)培养好氧颗粒污泥,考察了有机负荷分别为1.58和14.12kg/(m3·d)时所形成的好氧颗粒污泥的特性。结果表明,在两种负荷下反应器对COD、TN和TP的去除率均分别达90%、80%和90%左右,但高负荷下培养的好氧颗粒污泥的沉降性能较好。  : 好氧颗粒污泥; 间歇反应器; 内循环:X703.1  :C  :1000-4602(2004)11-0046-03CharacteristicsofAerobicGranularSludgeatVariousOrganicLoadingWANGFang, YANGFeng-lin, ZHANGXing-wen, LIUYi-hui(SchoolofEnvironmentalandLifeScience,DalianUniversityofTechnology,Dalian116024,China)  Abstract: Aninternalrecyclingsequencingbatchairliftreactorwasusedtocultivatetheaerobicgranularsludge,andthecharacteristicsofaerobicgranularsludgeatorganicloadingof1.58and14.12kg/(m3·d)respectivelywereinvestigated.TheresultshowsthattheremovalrateofCOD,TN,andTPinthereactorreachesabout90%,80%,and90%respectivelyatthetwodifferentloading,buttheaer-obicgranularsludgeathighloadinghasbettersettlingperformance.  Keywords: aerobicgranularsludge; sequencingbatchreactor; internalrecycling  :; (20030141022)1 试验装置与方法(InternalCirculateSequencingBatchAirliftReactor,IC-SBAR),100cm,3.8L,3.4L。4.0cm、70cm,7.0cm、90cm,(),,,,。150mm,(25±1.0)℃。1。(1),、、、、。,1.0~3.0mm。COD600mg/L,240min(39min,10min,180min,10min,1min),1.5L,COD1.58kg/(m3·d)。·46·      2004Vol.20          CHINAWATER&WASTEWATER           No.11,:25min,5min,172min,35min,3min,240min。1 IC—SBARFig.1 SchematicdiagramofIC-SBARinstallation1 Tab.1 InfluentwaterqualityCOD(mg/L)TN(mg/L)TP(mg/L)pH600~200030~10010~507.0±0.5  COD2000mg/L,120min(20min,87min,10min,3min),2.0L,4h,COD14.12kg/(m3·d)。COD、TN、TP、SV、MLSS、SVI、MLVSS、DO、[1]。2 结果与讨论2.1 ① 3,,8、、1~2mm,,(、),(4~6mm)。10d,COD,,,5mm,(2~3mm)。,,,,、、、。()。,,。,,,。② 2。2 Tab.2 Thespecificgravityandwaterrateofaerobicgranularsludgeathigh/lowloading (g/cm3)(%)1.007±0.00398.74±0.0011.028±0.00396.51±0.001  2,,。③ ,,,(SVI150mL/g),,。,SVI15.45mL/g80mL/g,。2.2 2.2.1 CODCOD2、3。2 CODFig.2 CODremovalbyaerobicgranularsludgeatlowerorganicloading·47·2004Vol.20                              No.113 CODFig.3 CODremovalbyaerobicgranularsludgeathigherorganicloading2,COD,90%。3,10d,COD,COD,90%。2.2.2 ,、90%;10d,,,80%,90%。2.3 [2],,,、。,,0.06m3/h,0.2m3/h。,,,,、、。,,,,。,,,。,、,、、。3 结论,,,,。1.58kg/(m3·d)14.12kg/(m3·d)COD、TNTP90%、80%90%,,、,、、,。:[1] .(3)[M].:,1989.[2] TayJH,LiuQS,LiuY.Theeffectsofshearforceontheformation,structureandmetabolishofaerobicgranules[J].ApplMicroBiotech,2001,57:227-233.[3] LiuY,TayJH.Theessentialroleofhydrodynamicshearforceintheformationofbiofilmandgranularsludge[J].WatRes,2002,36(3):1653-1665.:(0411)84706172E-mail:ffw7596@163.com:2004-04-28·48·2004Vol.20                              No.11

1 / 3
下载文档,编辑使用

©2015-2020 m.777doc.com 三七文档.

备案号:鲁ICP备2024069028号-1 客服联系 QQ:2149211541

×
保存成功