您好,欢迎访问三七文档
当前位置:首页 > 行业资料 > 冶金工业 > ENRT工艺在煤焦油深加工废水处理中的实际应用
ENRT,,,(,114044)[],A/OA2/O。,ENRT。3,COD92.1%~96.1%,92.2%~100%,《》(GB8978—1996)。,。ENRT,,、。[];;[]X703[]B[]1005-829X(2012)05-0087-03ApplicationofENRTprocesstothetreatmentofdeepprocessedcoaltarwastewaterLiuZe’nan,WangXu,JinXudong,LiGuotao(ZhonghuanLiaoningEngineeringTechnologyCo.,Ltd.,Anshan114044,China)Abstract:Thehigh-concentrationwastewaterproducedinthecourseofdeepprocessedcoaltarwastewaterisdifferentfromcokingwastewater.ItisverydifficulttoachievetheexpectedresultbyusingthetraditionalA/OprocessandA2/Oprocess.Accordingtothebigdifficultyoftreatingthecoaltarwastewateratthisstage,theactualapplicationofENRTprocesstoaShaanxicoaltarprocessingenterpriseisintroducedemphatically.Afterathree-monthdebugging,theCODremovingraterangesfrom92.1%to96.1%,andammonianitrogenremovingratefrom92.2%to100%,reachingthefirstclassofIntegratedWastewaterDischargeStandard(GB8978—1996).Ifadvancedtreatmentisfurthercarriedout,theeffluentcanmeetthereusingrequirementsfortheplantregion.TheENRTprocessischaracterizedbyhighdenitificationrateandlowoperationcosts,suitablefortheadvancedtreatmentofwastewaterinthechemicalengineeringfields,suchascokingprocessing,tarprocessing,etc.Keywords:biologicaltreatment;tarwastewatertreatment;biologicalcarbon,、、、、,26.5t/a,、。,,、、,、、、、,〔1〕。1。1:pHmg/L。60m3/d(2.5m3/h)。《》(GB8978—1996)(2)。2GB8978—1996:pHmg/L。1ENRTENRT,,〔2-3〕,CODCrSSpH6900~77002450~2600890~1100<100<3008~9CODCrSSpH≤100≤15≤0.5≤0.5≤1006~932520125IndustrialWaterTreatmentVol.32No.5May,201287〔4〕。NH4++1.5O2→NO2-+2H++H2ONH4++NO2-→N2+2H2O↑ENRT1。:。1,。:CODCr≤2500mg/L,≤300mg/L,≤600mg/L,≤120mg/L,SS≤300mg/L,pH8~9。2。,,。,。ENRT,、。22.1、、,70%~80%。2.4t,。30℃,pH8,20~30mg/L,CODCr500mg/L。36h,,〔5〕。B/C,。m(COD)∶m(N)∶m(P)=100∶5∶1、(),。1g=1.06gCOD,。。,30~35℃,pH7.8~8.3,30~40mg/L。,,H+,pH,pH<7.8pH7.8~8.3。,30~40mg/L。15d,、、、,。,1/5,。,50%~70%,80%。,、。。、、,,40℃,m(COD)∶m(N)∶m(P)=200∶5∶1,pH7.5~8.0。50d,,,。,,。pH7.5~8.0,30~33℃,CODCr200~500mg/L,、。m(COD)∶m(N)∶m(P)=100∶5∶1,,、CODCr、。2.2,。,,、、。CODCr1500~1700mg/L,120~150mg/L,40℃2012-05,32(5)88。、pH7.8~8.3、7.8~8.37.5~8.0。30~40℃,,。2.3ENRT20102,。CODCr2、3。2COD32.4(1)。4,14400,60m3/d,2.6/m3。(2)。3。33,1t2.442~2.904。(3)。0.7/(kW·h),2.5/m3。,7.54~8.0。3(1)ENRTCODCr92.1%~96.1%,92.2%~100%,75%,《》(GB89782—1996)。(2)ENRT,,C/N,,,,。(3)ENRT、、、,。(4)ENRT、,、。[][1],.[M].:,2002:145-149.[2],.-[J].,2004,30(8):67-68.[3],,,.-[J].,2005,36(1):5-8.[4],.[J].,2004,24(2):103-107.[5]VerstraeteW,PhilipsS.Nitrification-denitrificationprocessesandtechnologiesinnewcontexts[J].EnvironmentalPollution,1998,102(1):717-726.——————————[](1985—),2008,。:15164285959,E-mail:uniesky@163.com。[]2012-03-16()/(·t-1)/(·m-3)0.5~0.58kg/m324001.2~1.392PAC0.3~0.36kg/m332000.96~1.152PAM0.006~0.0072kg/m3150000.09~0.1080.03~0.04kg/m348000.144~0.1920.008~0.01kg/m360000.048~0.062012-05,32(5),:ENRT89
本文标题:ENRT工艺在煤焦油深加工废水处理中的实际应用
链接地址:https://www.777doc.com/doc-6536520 .html