O混凝工艺处理制浆废水的特性研究

－A/O－400045、、－A/O－4×104m3、。、、、A/OCODTOC96．5%97．5%、A/OCOD67．2%21．8%TOC72．7%13．4%98．5%、79．2%16．8%。GC/MSA/O231224－11－2－。87．0%80．8%。A/OTU993．3C1000－4602201721－0099－05cstc2015shmszx20008ApplicationofCoagulation－A/O－CoagulationProcessinTreatmentofPulpingWastewaterLIYan-chengWANGYing-muZHOUJianQUANJing-zhouKeyLaboratoryofThreeGorgesＲeservoirＲegion’sEco-Environment＜MinistryofEducation＞ChongqingUniversityChongqing400045ChinaAbstractＲegeneratedpulpingwastewaterhascharacteristicssuchashighcoloritypoorbiode-gradabilityandgreatdifficultyintreatment．Byapplyingthecoagulation－A/O－coagulationprocessinapapermillinChongqingwiththedailytreatmentcapacityofpulpingwastewaterreaching4×104m3waterqualitiesofinfluentandeffluentindifferentprocessingunitswereanalyzedtoexploreapproachestodegradepollutants．Theinfraredspectrumanalysisresultsshowedthatthepulpingwastewatercomposi-tionswerecomplicatedwithkeyprimaryorganiccontaminantssuchasphenolsestersaldehydesal-kynesandaromaticcompounds．Throughthepre-coagulationandA/OprocessthetotalremovalrateofCODandTOCwere96．5%and97．5%respectively．ThesharingrateofCODremovalofthetwoprocesseswas67．2%and21．8%respectivelyandthatofTOCwas72．7%and13．4%respectively．Thecolorwasmainlyremovedthroughthepre-coagulationandpost-coagulationwithatotalremovalrateof98．5%andthesharingrateofthetwoprocessingwas79．2%and16．8%respectively．TheGC/MSanalysisindicatedthat23and12kindsoforganicpollutantsexistedintheeffluentsoftheA/Oand·99·3321201711CHINAWATEＲ＆WASTEWATEＲVol．33No．21Nov．2017post-coagulationprocessrespectivelyinwhich24-bis11-dimethylethyl-phenoland2-methylde-canehadthemaximumrelativecontentsrespectively．Inadditionthewastewateralkalinityandtotalhardnesswereeffectivelyremovedbythepost-coagulationprocesswiththeremovalratesof87．0%and80．8%respectively．KeywordsregeneratedpulpingwastewaterpollutioncharacteristicscoagulationA/Oprocess、、、、1。、、、、2～5。－－－－－－－4～6。。－A/O－、A/OGC/MS。11.1HQ40dpHLICO500DＲ2800DＲB200DＲ5000Ele-mentarLiquiTOCNicoletiS5FT－IＲSJIA－10NAgilent5973C/6890/ＲE－52AA。1.24×104m3/d－A/O－PACPAM1。、、。1Fig．1ＲegeneratedpulpingwastewatertreatmentprocessinapapermillinChongqing1.31.3.1pH、CODBOD5NH+4－NNO－3－N－PO3－4SSTOC－《》GB/T15451—2006EDTAFe。1.3.2100mL。1～2mg300mgKBr＜2μm50～100MPa1minFTIＲ4000～·001·3321．watergasheat．com400cm－1。1.3.3GC/MS0．45μm50mL50mL5min30minpH12pH240℃1～2mL0．22μm4℃。HP－530m×0．25mm0．25μm1．0mL/min280℃1μL。40℃3min→200℃5℃/min3min→280℃10℃/min4min4min。2～650uEI70eV250℃。22.1、A/O1。1Tab．1PollutioncharacteristicsofregeneratedpulpingwastewaterA/O/℃48．7～54．940．1～46．538．5～45．835．2～43．7pH8．56～10．377．17～8．977．28～7．636．51～7．07/mS·cm－14．78～5．713．50～3．903．17～3．543．14～3．34B/C0．200．270．040COD/mg·L－1238878426483BOD5/mg·L－1488．85209．859．750TOC/mg·L－11405．35383．91196．2535．52NH+4－N/mg·L－155．6330．9119．7910．76NO－3－N/mg·L－137．777．923．321．07/mg·L－198．5242．7225．7513．20PO3－4/mg·L－19．6910．712．060/mg·L－115．2611．992．510．65/279658051243SS/mg·L－153599939CaCO3/mg·L－1111310681185154CaCO3/mg·L－1991932825158Fe/mg·L－16．625．744．810．93/mg·L－180716376Cl－/mg·L－13223052972541CODBOD567．2%57．1%B/C0．200．27A/OB/C0．04COD264mg/LCOD512COD96．5%74．7%A/O21．8%。TOCA/OTOC13．4%TOC72．7%TOC11．4%97．5%。、、·101·．watergasheat．com－A/O－332178。2796。79．2%2．4%16．8%A/O《》GB3544—200898．5%。96．1%9。SS、、TNTP98．3%、80．6%、86．6%95．7%《》GB3544—2008。pH8．56～10．37pH。PAC/PAM29．4%A/O、10A/O。187．0%80．8%11．2%5．3%。2.2、A/O2。2。22、、、、。、、、、。2Fig．2Infraredspectrumofeffluentpollutantsafterregeneratedpulpingwastewatertreatment2Tab．2Ｒesultsofinfraredspectrumanalysis/cm－13444—OH2150HC—C—ＲC—C1636、16351594、1513CCCN1413、1410、1405、1402、1384COHNO1354CH2NNO1196、1193C—OH1140Ｒ—NH2C—N1116、1115、1114、1110C—O—CSO2－41050C—OH997、992、985SO2－4868CO2－3658COH620、619、618、599PO3－4PO4473、458、457P—Cl420、419PO3－4PO42150、1594、1513、1354、1050868cm－13444、1636、14101100cm－11196、1140、658cm－1、、、、、。·201·3321．watergasheat．com1140599cm－1、。1193658cm－13444、16361402cm－11384cm－1985cm－1、、、、SO2－4。2.3GC/MSA/OGC/MS23、、。1758．16%15．00%。13．26%5．20%3．46%。24－11－。。2312、、31．47%、44．24%、9．70%6．57%。2－。3、、、。A/OCODTOC96．5%97．5%67．2%72．7%A/O21．8%13．4%。98．5%79．2%16．8%。GC/MSA/O231224－11－2－。87．0%80．8%。1PokhrelDViraraghavanT．Treatmentofpulpandpapermillwastewater—areviewJ．SciTotalEnviron20043331/337－58．2．J．2012631244－250．3．GC-MSJ．200521153－55．4．D．2012．5．J．2008316127－131．6．J．2015434161－163．7．FentonD．2011．8．－FentonD．2013．9．D．2012．10．J．201029539－42．1989－。[e-mail]2017－04－12·301·．watergasheat．com－A/O－3321