Fenton氧化气浮厌氧好氧工艺处理仲丁灵农药生产废水朱乐辉

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Fenton氧化+气浮+厌氧+好氧工艺处理仲丁灵农药生产废水朱乐辉 邱 俊 裴浩言 叶晓东 张 玉(,330031):采用Fenton氧化+气浮对仲丁灵农药生产废水进行预处理后,ρ(COD)6000mgL,色度1500倍,废水的可生化性大大提高。经过预处理后的生产废水与厂区生活污水混合后进入水解酸化+曝气生物滤池进行生化处理,处理后出水各项水质指标可达GB8978-1996《国家污水综合排放标准》一级标准。:仲丁灵生产废水;Fenton氧化;气浮;水解酸化;BIOFOR滤池THETREATMENTOFBUTRALINPRODUCTIONWASTEWATERBYFENTONOXIDIZATION-DISSOLVEDAIRFLOTATION-HYDROLYTICACIDIFICATION-BIOFORPROCESSZhuLehui QiuJun PeiHaoyan YeXiaodong ZhangYu(SchoolofEnvironmentandChemicalEngineering,NanchangUniversity,Nanchang330031,China)Abstract:AprocessofFentonoxidization-dissolvedairflotationwasusedtopretreatButralinproductionwastewater.TheCODandcolourityofthetreatedwastewaterwerelessthan6000mgLand1500timesrespectively.TheBOD5CODratiowasincreasedgreatly.Thehydrolyticacidification-BIOFORprocesswasusedtotreatwastewatermixedbysewagefromthefactoryandpretreatedproductionwastewater.Alltheindexesoftheeffluentcouldmeetthefirst-orderof“TheNationalWastewaterDischargeStandards”(GB8978-1996).Keywords:Butralinproductionwastewater;Fentonoxidization;dissolvedairflotation;hydrolyticacidification;BIOFOR0 ,,,[1]。,:(C4H10O)、(C4H9Cl)、(C10H13Cl)、2,6-(C10H11N2O4Cl)、(C4H11N)、(C14H21N3O4)、(C6H5Cl)、(C4H8O),COD20000~22000mgL;Na2CO3、Na2SO4、NaNO3、NaCl,6%~8%。Fenton+++,1,,,GB8978-1996《》。1 1.1 废水水质及水量:。、、、,、COD、。。1。1 、ρ(COD)(mg·L-1)ρ(BOD5)(mg·L-1)ρ(SS)(mg·L-1)pH(Cl-)(mg·L-1)m320000~220001000~2000100~15013000~15000145000020100~20050~8040~806~73601003070505~91.2 废水处理工艺设计COD、、11   200910275DOI:10.13205/j.hjgc.2009.05.003,Fenton,。FentonCOD、67%90%[2-3]。Fentonρ(COD)6000~7000mgL,1300~1500。Fenton、,ρ(BOD5)ρ(COD)0.0120.248[4]。,,2。2 ρ(COD)(mg·L-1)ρ(BOD5)(mg·L-1)ρ(SS)(mg·L-1)pH(Cl-)(g·L-1)m3240~350120~20060~100100~1506~72.5~3400  、,,+BIOFOR。1。1 1.3 主要构筑物设计参数1):3.1m×2.5m×3m,1,22m3,,、。2):3.2m×3.2m×2.5m,3,3Fenton,3。,1~2rs。3):3.2m×3.2m×2.5m,1,Fenton,。4):1,,2.5m×0.8m×2m,1.4m3(m2·h),30min。,1,,0.2×2m,0.2~0.4MPa。0.5。5):10m×6.4m×3.4m,1,180m3,10h,Fenton。6):11.5m×6.5m×3.2m,1,200m3,,,12h,。7):2,0.5m×0.5m×3.5m,,PAC、PAM,。1,8m×2.25m×5m,2.5m3(m2·h),3h。8)BIOFOR:3.2m×2.1m×5.6m,6,BOD50.2kg(m3·d),6.2∶1。8~10mm0.3m,2~3mm,2.7m。9):3.2m×3m×3m,1,BIOFOR。1.4 工艺过程Fenton:1,pH3~4;2gLFeSO4·7H2O,30%H2O2,15mLL;2h,pH7~8,PACPAM[4],2h,,2。2FeSO4·7H2OH2O2。,。3Fenton,ρ(COD)6000~7000mgL,1000~1500,。。:Fenton12   200910275,BIOFOR。2 2.1 Fenton预处理工段的调试运行pH、FeSO4·7H2OH2O2,,。2.2 厌氧、好氧生物处理的调试运行2.2.1 :[5]。,(85%)15。,HRT=24h,,ρ(COD)∶ρ(N)∶ρ(P)=200∶5∶1。,,,,。7d。,。,COD,。8,HRT=12h。,COD。20d,COD,COD44%,。30d,COD40%~50%,60%~70%,,SS,,。,25~32℃,,。2.2.2 BIOFORBIOFOR,,,。7d,,HRT=12h。SS(140~180mgL),BIOFOR,PAC、PAM。、,ρ(SS)50mgL,。20d,ρ(COD)200~240mgL,BIOFOR,ρ(COD)100mgL,,BIOFOR。,PAC、PAM,BIOFORSS,BIOFOR。7d,1。BIOFOR,:3min(0.59m3(m3·min));5min;7min(0.14m3(m3·min)),15min,,30min。3 Fenton、、、BIOFORGB8978-1996。,1,COD、、SS、pH,3。3 ρ(COD)(mg·L-1)SS(mg·L-1)pHρ(COD)(mg·L-1)SS(mg·L-1)pH2007—1185.54638.56.582008—0540.2422.16.282007—1296.84640.26.632008—0638.5220.86.732008—01103.45636.96.532008—0737.4226.76.452008—0299.24650.36.342008—0830.9425.26.692008—0385.140446.732008—0980.54051.76.372008—0479.83838.76.472008—1091.54453.86.75  :COD、、SS、pH,。20084—8,4—8,;20081CODGB8978-1996,20081,10dBIOFOR5~8℃,,,。4 1)Fenton+,,,,,。,,。(35)13   200910275pH,NH4HCO3pH5.0,NH4HCO3200gm3;,。,IC,,pH。IC,,,pH5.5,2#VFA1731mgL,1#VFA1500mgL。,,pH,VFA。,pH6.8,VFA400mgL(4)。(a)1#(b)2#4 pHVFA3 1)55d,   ,COD。COD15000mgL,COD500mgL,COD95%。2),NH4HCO3pH,,,pH6.8,VFA400mgL。[1] ,,,.(IC)[J].,2001,17(1):26-29.[2] PereboomJHF,VereijkenTLFM.Methanogenicgranuledevelopmentinfullscaleinternalcirculationreactors[J].WatSciTech,1994,30(8):9-21.[3] ,,,.IC[J].,1998(4):22-24.[4] HabetsLHA,EngelaarAJHH,GroeneveldH.Anaerobictreatmentofinulineeffluentinaninternalcirculationreactor[J].WatSciTech,1997,35(10):189-197.[5] ,.IC[J].,2001,19(2):12-15.[6] .IC[J].,2002(4):77-78.[7] .———IC[J].,2002,13(3):21-23.[8] ,,,.IC[J].,2004,23(4):777-781.  201600  E-mail xuyingjie1108@163.com2008-12-12(13)2),:pH3~4,30%H2O215mLL,FeSO4·7H2O2gL,30min,2h。3)BIOFOR,,GB8978-1996。4),5~8℃,,。[1] ,,.[J].,2003,21(6):77-79.[2] ,,,.Fenton[J].,2008,47(2):109-113.[3] ,,,.Fenton-[J].,2008,34(7):51-54.[4] ,,.--[J].,2002,28(5):50-53.[5] ,,,.COD[J].,2007,27(6):22-24.  330031 30328E-mail lmqiujun@163.com2008-11-2435   200910275

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