海水优化ANAMMOX包埋固定化及其处理含海水污水的脱氮性能单晓静

39420184ENVIＲONMENTALSCIENCEVol．39No．4Apr．2018ANAMMOX*266071．PVA125g·L－1-SA20g·L－1-40g·L－118h．—OH．21dNH+4-N90%ΔNH+4-N∶ΔNO－2-N∶ΔNO－3-N1∶1.04±0.1∶0.17±0.0221d46d185%0.2kg·m3·d－1．X703.1A0250-3301201804-1677-11DOI10．13227/j．hjkx．2017061592017-06-152017-09-235127825851478229BS2015HZ007J15LC611991～[e-mail]*[e-mail]formanceofEmbeddedANAMMOXBacteriainTreatingSalineWastewaterSHANXiao-jingYUDe-shuangLIJin*CHENGuang-huiFENGLiLTing-tingSHAOQingSchoolofEnvironmentalScienceandEngineeringQingdaoUniversityQingdao266071ChinaAbstractInordertoimprovethemechanicalstabilityofthematerialtheembeddedrawmaterialcombinationwasstudiedintheexperimentandseawaterwasaddedtooptimizetheperformanceofthematerial．TheresultsindicatedthattheoptimalmaterialratiowaspolyvinylalcoholPVA125g·L－1-alginatesodiumSA20g·L－1-activatedcarbon40g·L－1．Thecuringtimewas18h．AfteraddingseawaterthebeadswerefoundtohavelargerporesizesinsideandtheporesweredistributedunevenlybecauseoftheHofmeistereffect．Atthesametimethemechanicalstabilityandbiologicalcapacitywerefoundtobesignificantlyhigherthanthoseofthefreshwatergroup．TheＲamanspectraanalysisshowedthattheadditionofseawatermadethe-OHonPVAhavegreatercrosslinkingreactionswiththecrosslinker．Theactivatedsludgewasusedtotreatwastewatercontainingseawaterandafteranoperationof21dtheremovalrateofNH+4-Nwasabout90%andthestoichiometricratioofΔNH+4-N∶ΔNO－2-N∶ΔNO－3-Nwasstableat1∶1.04±0.1∶0.17±0.02．Fromthe21stdaytothe46thdaythereactorwasruninasteadystate．Whenthenitrogenloadratedoubledtheammonianitrogenremovalrateandstoichiometryhadlittlevariations．Thetotalnitrogenremovalratewasabout85%andthetotalnitrogenremovalloadratewas0.2kg·m3·d－1．KeywordsANAMMOXwastewatercontainingseawaterimmobilizationHofmeistereffectnitrogenremovalANAMMOX、12．ANAMMOXANAMMOX34．ANAMMOXANAMMOX56．7．．398．9～13、14～181920．721．PVA8．、2223．PVA2425PVA-5．SO2－4Cl－SO2－4＞Cl－＞NO－3＞Br－＞I－＞ClO－4＞SCN－．．11.11750±50H3BO3CaCl2activatedcharcoalACKH2PO4SBＲ．3.03g·L－1NH+4、NO－294%88.5%0.26kg·m3·d－1．．1.2K2HPO462mg·L－1CaCl2310mg·L－1MgSO4·7H2O456mg·L－1KHCO34000mg·L－1．ⅠFeSO4·7H2O5g·L－1EDTA5g·L－1ⅡEDTA15g·L－1H3BO30.014g·L－1MnCl2·4H2O0.99g·L－1CuSO4·5H2O0.25g·L－1ZnSO4·7H2O0.43g·L－1NiCl2·6H2O0.19g·L－1Na2MoO4·2H2O0.22g·L－1CoCl2·6H2O0.24g·L－1NaSeO4·10H2O0.21g·L－1ⅠⅡ3.4mL·L－1pH7.26～7.33．NH+4NO－2NH4Cl．NH+4-NNO－2-NN-1--NO－3-NpHWTWpH/0xi340ipH-UV-5200．1.33．．PVA-SA--PSas100g·L－1PVA20g·L－1SA50g·L－1．2.0mm．4℃12h0.5mol·L－1KH2PO41h．PSasPVA-SA-PSsPSsSAPVA-PsPSsPVASA-Ss．．3/、12h/24h61．87614ANAMMOX11Table1ArrangementoftheexperimentalgroupsρPVA/g·L－1ρSA/g·L－1ρ/g·L－1/h115020—/12/24210020—/12/243100550/12/2441002050/12/245150550/12/2461502050/12/241“—”．PSas9PSas．1.4PVA-SA--PVA-SA-．．24h．1.520300mL250mL．32℃．=Vst/Vs0×100%VstVs0．20300mL250mL．32℃72h．=Vet/Ve0×100%VetVe0．30500mL350mL．400r·min－148h．．．=Wt/W0×100%W0Wt．1.61mm10．22.1Ps、Ss、PSsPSas3d42．24Table2DifferentappearancesoffourgroupsPsSsPSsPSasPsPSas．4PSas．2.2PSas31/、12h/24h．976139．．35“”．．．2．3．3．163535%53．．31/%Table3Expansionpropertiesanddegreesswellingofthedifferentgroups/%12h24h12h24h11．301．021．390．991．100．961．010．932————1．140．951．131．0031．250．981．441．01————41．650．861．430．851．090．971．051．0151．11/1．011．030．98————61．261．061．221．091．141．011．051．001“—”．．12h24h．24h12h．24h12h12h24h12h24h．2.3PVAASABCD3L934．4．4Table4OrthogonalexperimentaldesigningofdifferentmaterialratiosρPVA/g·L－1ρSA/g·L－1ρ/g·L－1/h1150205024212515401831001030124、．95．＞PVA＞＞SA．A2B1C2D2PVA125g·L－1SA20g·L－140g·L－118h．08614ANAMMOX5Table5VisualanalysisoftheorthogonalexperimentPVAASABCD111111.0450.9970.90394.54212221.0430.9870.96397.3313331.0540.9430.66485.77421230.9220.9670.79395.38522310.9471.0190.84995.41623120.9371.0380.84495.19731320.9740.9330.72291.24832131.2550.8830.72384.35933211.0631.0360.91193.42192.53793.72091.36094.457295.32792.35395.36794.577389.67091.46090.80788.5005.6572.2604.5606.07733.1SACa2+23Ca2+SANa+Ca2+、Mg2+K+Ss．PVAH3BO3PVAPVAPVA—OHH2OPSsPSasH3BO3—OHH2OPSPSs．PVASAPVA—OH—COO—、—OHPVASA．PVA、SA“”．PSas、．3.2HofmeistereffectsHydrationshell26．27、1a．PVAH2O28H2O．．1bPSasPSad3.8±0.1mmPSadPVA-SA--4.6±0.1mmPSas．PSasPSad1c1d、29．1861391PSasPSadFig．1AppearancesandinternalstructuredifferencesduringfabricationofPSasandPSad2/800～2000cm－12600～3800cm－1Fig．2Ｒamanspectraofseawater/freshwaterembeddingmaterialat800-2000cm－1and2600-3800cm－13.3PVAPVA．PVASA1%CaCl2．—OH30．“-a”“-b”2PSad-a、PSas-a、PSas-b、PSd-aPSs-a800～2000cm－12600～3800cm－1．PSas-b872～877cm－1BOH3PSas-a975cm－1P—O—C28614ANAMMOXP—O—C3-Fig．3OverallreactionofthePVA-SAbeads1088～920cm－1．P—O—ＲＲC2H5800cm－1P—O1042～800cm－1C—O855cm－1PSas-bC—O．920cm－1P—O—P1380cm－1PO31KH2PO4PVA/H3BO3．3．386139PVA．2PSd-a1135cm－1C—O．31．C—OHPVA—OH—COO—、—OH—OH．PSs-aPSd-aC—OH26PSad-aPSas-a．PSs-a/PSd-aPSas-a/PSad-a1420～1380cm－1O—H3600～3200cm－1O—H．—OH．1350cm－1D1600cm－1G．1430cm－1—CH2—PVA．3000～2900cm－1SA—CH2—CO5Ca2+SANa+．3.4NH+4-N40～65mg·L－1NO－2-N50～66mg·L－1HＲT24h110·min－127～28℃．54d、、4．4Fig．4Variationsinthenitrogenconcentrationsandremovalrates1～12d32．3H3BO3pH45.8H3BO348614ANAMMOX4℃334℃34．NH+4-NNH+4-N．6～8dNH+4-N9～11dNH+4-NNH+4-N32ANAMMOX3235NH+4-N12d54.4%