氨吹脱铁碳微电解H2O2法联合预处理高浓度焦化废水殷旭东

、、、[1-2]。、、[3-5]。/H2O2Fenton[H]、Fe2+Fe2+H2O2·OH[6]。FentonNH4+[7]Fenton[8]。+/H2O2COD、。11.130L-2.2KW2cm×2.5cm1.1t/m31.2m2/g65%1000kg/cm2、30%PHS-25pHAB204-EBODTrakHACHBOD。COD25～30g/LBOD52500～2800mg/L4000～5000mg/L1000～1500mg/LpH7.2～7.8。1.2410L3LNaOHpH9.0、10.0、10.5、11.010L/min3L。1h15、COD。/H2O22L。1LpH30%H2O2。pH、、H2O2COD。+525000+/H2O2。10L/min3hpH11.0/H2O2160minpH3H2O280mL/L300g/L。COD87%91%B/C0.110.48。。/H2O2X781A1000-3770(2016)[e-mail]42520165Vol.42No.5May,2016DOI:10.16796/j.cnki.1000-3770.2016.05.0281201.3pHCODBODHACHBOD4。22.12.1.1pH10L/min3hpH9.0、10.0、10.5、11.0。1。1pHpH[9]。pH11.0347mg/L92.4%pH=11.0。COD10%4%。2.1.210L/minpH=11.01、2、3、4、5h2。23h334mg/L92.7%3h。3hpH8.6COD12%5%。2.2/H2O22.2.1[10]/H2O2O2H2O2H2O2、、。。/H2O21.22L/min。2.2.2pH3、300g/L、H2O280mL/L20、40、100、160、250minCOD1。COD26007mg/L1188mg/L。1160minCOD[H]、Fe2+H2O2·OH160minCOD160minCOD[11]。2Tab.2Relationbetweentimeandremovalofammonianitrogen/h/%1234562.480.392.791.891.5457845784578457845781721.328901.866334.194375.396389.13ρ()/(mg·L-1)1pHTab.1RelationbetweenpHandremovalofammonianitrogenpH/%9.010.010.511.048.269.185.792.445784578457845782371.4041414.602654.654347.928ρ()/(mg·L-1)05010015020025002000400060008000100001200014000160001800020000
/min0102030405060708090100
 /%ρ/(mg·L-1)1CODFig.1EffectofreactiontimeonCODandvolatilephenolremoval+/H2O2121160minCOD87.5%91.1%。2.2.3pH300g/L、H2O280mL/L、160minpH2、3、4、5、6、7CODpH2。COD25777mg/L1284mg/L。2pH3CODpHFe2+、Fe3+·OHpH3pHCODpH3pHCODpH·OHH2O2。pH3[12]COD87.1%90.9%。2.2.4H2O2pH3、300g/L、160minH2O230、60、80、100、120mL/LCOD3。COD25686mg/L1197mg/L。3H2O2·OHCODH2O280mL/LH2O2·OHHO2··OH[13]COD。H2O280mL/LCOD87.6%91.2%。2.2.5pH3、H2O280mL/L、160min100、200、300、500、700g/LCOD4。COD25113mg/L1213mg/L。4300g/LCOD[H]、Fe2+、Fe3+·OH300g/LCOD300g/LCODFe[14]。300g/LCOD87.3%91.3%。3060901200200040006000800010000120001400016000HO
/mLL0102030405060708090100/%ρ/(mg·L-1)3H2O2CODFig.3EffectofdosageofH2O2onCODandvolatilephenolremoval23456702000400060008000100001200014000160001800020000
pH0102030405060708090100/% CODCODρ/(mg·L-1)2pHCODFig.2EffectofinitialreactionpHonCODandvolatilephenolremoval10020030040050060070002000400060008000100001200014000160001800020000
gL0102030405060708090100 /%4CODFig.4EffectofironcarbonqualityonCODandvolatilephenolremovalρ/(mg·L-1)425122PretreatmentofHighConcentrationCokingWastewaterbyAmmoniaStrippingandFe-CMicro-ElectrolysisCombinedwithH2O2YinXudong,LiDehao,MaoYufeng,ZhuYueping,LiuZhenghui(CollegeofEnvironmentalandBiologicalEngineering,GuangdongUniversityofPetrochemicalTechnology,Maoming525000,China)Abstract:AmmoniastrippingFe-Cmicro-electrolysiscombinedwithH2O2processwasappliedtooxidizehighconcentrationcokingwastewater.Theoperationalparametersofeachstagewereoptimized.Theresultsshowedthattheoptimumparametersofammoniastrippingwereaerationrate10L/min,strippingtime3h,pH11.0,andtheoptimumparametersofFe-Cmicro-electrolysiscombinedwithH2O2werereactiontime160min,pH=3.0,H2O2dosingquantity80mL/L,ironcarbonfiller300g/L.Undertheseconditions,thedegradationrateofCODandvolatilephenolwasmorethan87%and91%respectively,andB/Cincreasedfrom0.11to0.48.Theresearchresultscanprovideareferenceandguidanceforthiskindofwastewatertreatmentengineeringpractice.Keywords:ammoniastripping;Fe-Cmicro-electrolysiscombinedwithH2O2;highconcentrationcokingwastewater;pretreatment2.3/H2O25。COD87%91%CODB/C0.110.48。310L/min3hpH11.092%。/H2O2160minpH3H2O280mL/L300g/LCOD87%91%。/H2O25CODB/C0.110.48。[1]ZhaoJianliang,ChenXiaowen,YanBo,etal.Estrogenicactivityandidentificationofpotentialxenoestrogensinacokingwastewatertreatmentplant[J].EcotoxEnvironSafe,2015,(112):238-246.[2],.[J].,2015,35(9):11-14.[3],,.[J].,2015,34(8):300-302.[4]ADBokare,WYChoi.Reviewofiron-freeFenton-likesystemsforactivatingH2O2inadvancedoxidationprocesses[J].JHazardMater.,2014,(275):121-135.[5],,,.[J].,2014,34(4):51-54.[6],,,./H2O2Fenton[J].,2015,9(4):1752-1756.[7],,.H2O2[J].,2002,28(2):118-119.[8],,.+Fenton[J].,2015,35(5):129-132.[9],,.Fenton[J].,2003,4(2):10-12.[10].H2O2AOX[D].:,2014.[11],,,.-Fenton-[J].,2014,34(4):344-347.[12],,./H2O2[J].,2010,36(8):117-120.[13],.-[J].,2011(37):294-297.[14],,,.//H2O2[J].,2007,30(8):90-92.235。251535。50001。7338.81。2016－2017。139120646982234001.5、1.53。21000。2016－2017。0411-39352911116000!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!+/H2O2123