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1009-6825201120-0133-02A2/O2011-03-181983-6101001980-610081A2/OA2/O。A2/OA2/OA+A2/OUCTPHBX703A0A2/O2070—。。A2/O。A2/O。A2/O。1A2/O1．1A2/OA2/OAnaerobic/Anoxic/OxicA1—A2—O。、。、、。11。1．2A2/OA2/O1A2/O——。。2。3、SVI100。4、。1．3A2/OA2/O、、、。1。βPHB。PHB。、4．53。。。2A2/O。20d～30d。A2/Ots。5d～8d。3櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅、Onconstantpressureforconstantpressurepointinheatingair-conditionersystemZHANGXiu-meiAbstractThepaperexplorestheroleofconstantpressurepointoftheheatingair-conditionersystemanditsvalueandindicatestheworkingprinciplesthedesignstylesandthefeaturesforthethreeconstantpressurewaysthatisexpansionwatertankpressuretankandvariablefre-quencypumpingandprovidestheguaranteeforthecommonoperationfortheheatingair-conditionersystem．Keywordsheatingair-conditioningsystemconstantpressurepointwaysofconstantpressure·331·372020117SHANXIARCHITECTUREVol．37No．20Jul．2011DOI:10.13719/j.cnki.cn14-1279/tu.2011.20.009。22．1A2/O1/。A2/O/。10%20min～30min。PHB。11%。2A2/O。A2/OA2/O45A2/O。6。37。A2/O。。4A2/O。A2/OA2/O//。。8A2/OA2/O。2．2A+A2/OA2/O10%90%20min～30min9。。2．3UCTUCTUniversityofCapeTown1983A2/O2。A2/OUCTCOD/TKN。。2．4PHB“”———DPBDenitrifyingPhosphorusRemo-vingBacteriaPHB“PHB”10。DPB。、、A2/O11。DPB、DPB。3A2/O。。、。1．M．1992．2．M．2000．3GBortoneSMarsiliLibelli．AnoxicphosphateuptakeintheDephanoxprocessJ．WatSciTech1999404177-185．4．A2/OJ．200329322-26．5．A2/OJ．2004201276-78．6．A2/OJ．200675132-134．7Z．2001．8．D．1996．9．A2/OJ．200319881-83．10TKuba．PhosphorusandnitrogenwithminimalCODrequire-mentbyintegrationofdenitrifyingdephosphatationandnitrifi-cationinatwosludgesystemJ．WatRes19963071702-1710．11．A2/OJ．20065681565-1570．IntrinsiclimitationsandimprovedmeasuresofA2/OprocessZHANGYan-huiTANGYingAbstractThispaperintroducedtheflowprocessandrunningmechanismofA2/OprocessanalyzedtherunningcharacteristicsandintrinsiclimitationsofthisprocessandintroducedseveralimprovementswithengineeringsenseaccordingtomountsofdocumentssomadeA2/Oprocesstobemoreperfect．KeywordsA2/OimprovedA2/OprocessA+A2/OprocessUCTprocessPHBonecarbonwithtwofunctions·431·372020117