Page 99 - 《水资源与水工程学报》2025年第1期
P. 99
!36 "!1 # & ' ( ) & * + , - Vol.35No.1
2025 $ 2 % JournalofWaterResources&WaterEngineering Feb.,2025
DOI:10.11705/j.issn.1672-643X.2025.01.11
®¯U°±²@³±´R´¨Áµ@¶0ÌÍ
s M, Btu, $vw, Rxy, z{{
( ;<=a0 ZbcYÌCD0G, ,- <NK 843300)
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+
ZÓûÍ6/ªeZ( Ø~ 1%, ;L/ NaCl ), µ¶ SBRÇLD4îögØ3( ÊPÍ(NH —N)、
4
Í(TN)) ¤NÂÑ、 Ê
¤¥ÍÑÈcbSÍÛÜú¼{MN。®«S¤: gØ3ÛÆF/{þR, óa¤N
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4
¸ÑµT 83.51%、81.96%、70.28% 81.50%; ¦ñ3ÛÜJª4, %.3>(Zoogloea)、 IO3>(Flavobacte
rium ) norank_f_norank_o_Saccharimonadales >»[3>, ÌÍSÍ/{5Òóà¯t:͸Î{È';
+
NÃÒr»¼{zòóuÆZ COD|~ 399.99mg/L、 gØ3¿ö 4.2g, uC÷B COD、NH —N TP
4
¸Ñ{Ãqì3îµT 82.31%、90.75% 81.23%, cðñîºn, NÃÒrðñiºÑÈ[Ý。AB®«
gØ$ѤNé{ÿ¬ØeZq1´î。
1@A: gØ3; ÓûÍ6; ¬ØeZ; $ѤN; bSÍÛÜ; NÃÒrðñiº
BC<DE:X703 FGHIJ:A FKLE:1672643X(2025)01009510
Halotolerantbacteriainactivatedsludgeenhancestreatmentof
salinewastewaterwithlowcarbontonitrogenratio
XIAOFei,LIYanyu,ZHANGWanying,ZHAOFengde,JIAZhuangzhuang
(CollegeofHydraulicandArchitecturalEngineering,TarimUniversity,Alar843300,China)
Abstract:Municipalsalineorganicwastewaterinhibitsmicrobialmetabolicactivitiesduetoitslowcar
bontonitrogen(C/N) ratioand high salinity; thushinderstheremovalofpollutantsfrom the
wastewater.Therefore ,thereisagreatneedforthetechnologiesthatcanalleviatetheinhibitoryeffectsof
salinityonbiologicalprocesses.Inthisstudy,asequencingbatchreactor(SBR)wasutilized,whichwas
inoculatedwithmunicipalactivatedsludgeandfedwithsyntheticwastewateroflowC/Nratioand1% sa
linity ,providedonlybysolidNaCl.Theanalysisfocusedontheeffectsofhalotolerantbacteria(for
+
NH —NandTNreduction)onsludgecharacteristics,pollutantdegradationperformance,andmicrobial
4
communitychangesduringSBRoperation.Itwasfoundthatthepresenceofhalotolerantbacteriapromo
tedflocaggregation,increasedsludgeparticlesize,andenhancedprotein(PN)content,whichreached
+
amaximumof25.88mg/L.Removalratesof83.51% forCOD,81.96% forNH —N,70.28% for
4
TN ,and81.50% forTPwereachievedbySBR.Inthecompositionofbacterialcommunities,thedomi
nantgenerawere Zoogloea,Flavobacterium,andnorank_f_norank_o_Saccharimonadales,whosesyn
ergisticeffectswereobservedtoenhancethesystem ’sabilityfornitrogenandphosphorusremoval.Opti
malconditions ,asdeterminedbyresponsesurfacemethodology,includedaninfluentCODof399.99
mg/Landahalotolerantbacteriadosageof4.2g.Undertheseconditions ,theexperimentalmeanremov
+
alratesforCOD,NH —N,andTPwere82.31%,90.75%,and81.23%,respectively,whichwere
4
closetothepredictedvalues.Theseresultsindicatedthattheresponsesurfacepredictionmodelper
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