废纸造纸废水零排放与封闭循环技术浅析

TheAnalysisofPapermakingWastewaterZeroEmissionsandClosedCycleTechnologyLIULin1ZHANGAn-long1,2LUOQing1,2(1.ShaanxiUniversityofScienceandTechnology,Xi'an,710021China;2.KeyLaboratoryofPapermakingandSpecialPaperDevelopmentofShaanxiXi'an,710021China)Abstract:Inrecentyears,thepapermakingindustryisgrowingrapidly,inordertoproducethewastedischargestandards,reasonabletreatmenttechnologiesshouldbeadopted.Thispaperbriefsthepresentsituationofwastepaperpapermakingwastewatertreatment,zeroemissionstechnologyandtheproblemsencounteredandsolutions;Throughengineeringexamples,thispaperdiscussestheprocessandoperationsituationofzeroemissiontreatmentofregeneratedpapermakingwastewater,sothatthewastepaperpapermakingwastewaterhasrealizedtheintegrationofproduction,thewatercycleandwasteresourceutilizationpatternofcleanerpro－duction.Keywords:wastepaperpulping;papermakingwastewater;wastewaterrecyclingclosed;zeroemission。(2011KTZB03-03-01),。[e-mail][1,2]。。1.12013340010110t2040t20.18％2015t19.93％。20137651t5940t78％。20139147t5940t65％26％39％[3]。1.2、、、、、、、、、、[4]。、、、。5~20m3·t-1。50t10~50t3~5t2t“”1710021;2710021。、。、、。;;;2720164、5~8m3·t-13~5m3·t-110~13m3·t-115~20m3·t-1。10t。20~50m3·t-160~80m3·t-1。2.1“”(ZeroDischarge)、、[5]。。1.5m3[6]。200120026。。。[7]。、。2.2,,,。,。2.2.1pH。。、。2.2.2、、。。。S2O42-。。2.2.3、、、。。[14]。2.2.4。。、、COD,,。,、、Ca2+SO42-,。,,,。,DCSVFA。Ca2+、Mg2+。,。3.12002。3。180t·d-12002~2003100~110t·d-1240t·d-1(8t)2.1~2.3m3·t-1。28360(110t·d-1)[8]。1。、COD、BOD。。3.2。80003m3·d-1、、、[9]。CODCr80mg·L-1SS30mg·L-12。、。。。。、CODCOD。、。、、。。。Fenton(H2O2Fe2+)FentonPAMpHFe2+Fe3+。。3.3。20066000m3·d-1。2007511[10]。。3。。IC。N、P()。IC。。。29201643.43.4.1。2008300。、、。。4。PAC-APAM、、。。60t2t100tCODCr100t8%~10%。[11]。3.4.2。20083。。A()B5。4.1(、)、。、、、、[12]。。304.24.2.1()。。4.2.2(50~60℃)()。4.2.3。、pH。4.2.4SS20mg·L-1。4.3。6。“”、[13]。、。4.4。。)。5.1、。(1)60m32m3。(2)1.3t1.25t0.05t[15]。(3)+2~41/6~1/10。10~20kg。(4)。。5.2“”3120164《》《》、“———-”《》。、、、、、、。、。《》25《》。、、、、。[e-mail]。“”。“”。1、、。。2。[16]。3COD1000mg·L-1COD。4。,、,。、。[1].[J].,2006,27(3)14-19．[2],.OCC[J].,2007,26(11)5-9．[3].2013[R].,2014,35(11)8-19．[4].[J].,2000,16(11)23-25．[5]HabetsI,KnelissenH,HooimeijerA,etal.Improvedpaperqual-ityandrunabilitybybiologicalprocesswaterrecoveryinclosedwa-tercircutsofrecyclemills[J].KamiPaGikyoshi/JapanTappiJournal,1998,52(10)1373.[6],,.[J].,2009,2(1)49-51．[7].[J].,2010,128-30．[8],,.[J].,2003,7(4)5-8．[9].[J].,2014,12(41)149-150．[10],,,.[J].,2009,25(10)56-59．[11],,,.[J].,2014,33(1)64-66．[12],.[J].,2006,25(3)39．[13].[J].,2007,28(6)107．[14],,,.[J].,2005,24(4)42-44．[15],,,.[J].,2012,38(4)49-52．[16],.[J].,2006,531-33．!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!32