含碘废气治理设施工艺设计与运行效果研究

:,65,,:1997201221:199720421532Vol.32,Suppl.19985AtomicEnergyScienceandTechnologyMay1998(,,102413)6:,9913%,(1.85108Bqöd)TL941121,131I,,[1]131I131I,,131I131I,,131I,,112(),:(1)1;(2)1;(3)1(2,11);(4)1();(5)2;(6)60m,131I125I1Fig.1Processflowchartofiodineremovalsystem01;02;03;04;05();06;07;082,,2Fig.2Planformoftherippy2netactivatedcharcoaladsorber35:2211,:,,;,,2,1;1,[2]33Fig.3Schematicdiagramoftheiodinesamplera;b;c131I125I;131I,60Lömin,28h,,:G=N1-N2N1100%:G;N1131I;N2131I212(1),,:1)784Pa;2)9715%:,;0.72mSvöh,,;90d,131I4532,,30min,(2),,95%,,4055:;;3311,:(1);(2);(3);(4)SO2,:10%,99198%9617%;10%,85%,12[3](),,,,,(),312,(HEPA):5Lm,2Lm,99197%HEPA,,,313131I(1)19751981,,131I3123%,1.5109Bq,131I8(2)1982,131I,:,131I,11020,131I30(3)198812,,,(4)19891994,131I01025%,1982198855:4,1982130,46:,2,131I,,,1..:,1979.10.2KellerUH.AnEvaluationofMaterialsandTechniquesUsedforMonitoringAirbroneRadioiodineSpecies:CONF2720823.1972.3.2131.:..:,1986.295.TREATMENTOFGASEOUSWASTECONTAININGRADIOACTIVEIODINEYuChengzeLiuChunxiuZhangBaoshanYanJiadeXuEnchangShaoFuyiSunHuaixiang(ChinaInstituteofAtomicEnergy,P.O.Box27524,Beijing,102413)ABSTRACTToremoveiodine,theripple2netactivatedcharcoaladsorbersareadoptedandconnectedinseries.Thewholeiodineremovalsystemincludes:HEPAfilter,airheater,activatedcharcoalpreadsorber,impregnatedcharcoaladsorber,MEPAfilteranddischargechimney.Themonito2ringresultsindicatethatthesystemisreliableandstable.Thetotaliodinere2movalefficiencyisover99.3%.Theamountofiodinereleasedintotheatmosphereismuchlowerthantheallowablelimitof1.85108Bqöd.KeywordsRadioactiveiodineGaseouswasteActivatedcharcoaladsorber6532