O工艺处理化工橡胶废水出现的问题及解决措施

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A2/O12111.1130002.113000FentonAOA2/OA2/O。、、pHA2/OA2/O。A2/OFentonTU993C1000-4602201724-0131-05ProblemsandSolutionsofA2/OProcessforChemicalRubberWastewaterTreatmentZOUJun-feng1LIZheng2LIHong-guo1LINZhuo11.ChinaNationalPetroleumCorporationFushunPetrochemicalCompanyFushun113000China2.CollegeofChemistryChemicalEngineeringandEnvironmentalEngineeringLiaoningShihuaUniversityFushun113000ChinaAbstractAsaresultofpoorinfluentbiodegradabilityandlackofdenitrificationandphosphorusremovalunitanumberofwaterqualityindexcouldnotmeettheeffluentstandardsinalarge-scaleethyl-eneplantinLiaoningProvincepreviously.AsforthesolutionsoftheproblemtheoriginalAOprocessisreplacedbyA2/OprocessandFentonpretreatmentunitisalsoincluded.ThepossiblechallengesofA2/OprocessoperationarefurtheranalyzedandsolvedbypropercontrolofcarbonsourceDOpHandSRTwhichcanprovidereferenceforoptimizingdesignandpracticaloperationofA2/Oprocess.KeywordsrubberwastewaternitrogenandphosphorusremovalA2/OprocessFentonE-maillizhengzz@163.com、1。。2015《》GB31571—2015COD≤60mg/L、BOD5≤20mg/L、≤40mg/L、≤8mg/L、≤1.0mg/L。《》DB21/1627—2008COD≤50mg/L、BOD5≤10mg/L、≤15mg/L、·131·3324201712CHINAWATER&WASTEWATERVol.33No.24Dec.2017≤8mg/L、≤0.5mg/L。。。A2/O、Bardenpho、SBR。A2/O、、23。COD。AOA2/OFenton。A2/OA2/O。150000m215600m3/d、。“++”AO1。《》DB21/1627—2008《》GB/T19923—2005。1。。70%BOD5/COD0.22、30mg/L120mg/L。[A]水解酸化池调节罐气浮机缓冲池[O]活性污泥曝气池二沉池中间水池曝气生物滤池多介质过滤器臭氧接触池活性炭过滤器回用水池/排水池进水污泥回流剩余污泥出水1Fig.1Flowchartofwastewatertreatmentplant1Tab.1Designandactualeffluentqualityofthewastewatertreatmentplantmg·L-1CODBOD5≤50≤10≤8≤15≤0.591.2159.134.127.72055337.682.41123880.5412.13.22、Fenton+2。Fenton催化氧化反应器调节罐斜管沉淀池产水池橡胶废水去污水处理厂Fenton试剂剩余污泥2FentonFig.2FlowchartofFentonprocessFenton①COD②、。FentonCOD1000mg/L500mg/L120mg/L10mg/L。2。2FentonTab.2TherubberdeviceeffluentqualitybeforeandafteraddingFentontreatmentCOD/mg·L-1BOD5/mg·L-1/mg·L-1/mg·L-1/mg·L-1BOD5/COD944.3203.730.471123.10.22297.482.129.171.79.40.282FentonCOD、BOD5。BOD5/COD0.220.28。AOA2/O3。Fenton·231·3324.watergasheat.com3。3。[A]水解酸化池调节罐气浮机缓冲池[A]反硝化池中间水池多介质过滤器臭氧接触池活性炭过滤器回用水池/排水池进水出水[O]活性污泥曝气池二沉池曝气生物滤池甲醇Na2CO3硝化液回流污泥回流剩余污泥3Fig.3Flowchartofwastewatertreatmentplantaftertransformation3Tab.3Theeffluentqualityofwastewatertreatmentplantbeforeandaftertransformationmg·L-1CODBOD5≤50≤10≤8≤15≤0.538.0~205.08.0~53.00.54~37.612.1~82.43.2~112.091.2159.134.127.720.4~64.46.5~100.5~8.911.4~16.90.2~0.740.58.30.913.60.43A2/O①COD、、。、。②CODDO>0.5mg/L。③A2OpH、、pHpH6~9。4A2/O、、pH“-”/、pH、、DO、。4.1COD<200mg/LBOD5∶N∶P=100∶5∶14。500mg/L、7SV304。4Tab.4ComparisonofeffluentqualityafteraddingdifferentcarbonsourcesSV30/%COD/mg·L-1BOD5/mg·L-1/mg·L-1/mg·L-1/mg·L-14026.56.60.39.30.24528.17.20.710.40.34329.08.70.811.10.46353.79.46.715.50.6·331·.watergasheat.comA2/O3324、。4SV30。SV30、、。0.2mg/L、。4.2。。、。2mg/L。、200%100%、COD、、。5。5Tab.5Effluentqualityatdifferentconcentrationsofdissolvedoxygenmg·L-1DOCODBOD51~225.17.80.3518.60.780.5~125.56.90.4417.40.560.2~0.526.76.40.4615.30.450~0.225.86.40.519.70.3150~0.2mg/L。4.3pHA2/O。。1g3.75gCaCO31g7.14g1。。Na2CO3pH。4Na2CO3pH。pH6。6pHTab.6EffluentqualityatdifferentpHvaluesmg·L-1pHCODBOD5153.112.19.525.51.3229.28.74.114.40.46325.36.40.349.30.37447.411.85.216.71.215.5~6.526.5~8.038.0~8.548.5~9.0。6pH<6.58.5。pH8.0~8.5。4.4。10d15d。、COD、、。。。TN/MLSS0.05kgTN/kgMLSS·d3。7。7·431·3324.watergasheat.com7~15d。。、。7Tab.7Effluentqualityatdifferentsludgeretentiontime/dCOD/mg·L-1BOD5/mg·L-1/mg·L-1/mg·L-1/mg·L-12041.410.00.2414.00.741526.48.40.3510.20.36722.77.70.539.70.33525.08.32.113.30.275①“++”AO。70%、。②FentonAOA2/O。③A2/O、、pHA2/OA2/O。1.A2OJ.20143015135-138.2LiuYNHuJLXuBJetal.Isolationandidentifica-tionofaniopromide-degradingstrainanditsapplicationinanA2OsystemJ.BioresourTechnol201313436-42.3.M.2011.4.M.2006.1976-。E-maillizheng.zz@163.com2017-07-13依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依依法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法法治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治治水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加加强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强强水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水水资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资资源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源源统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统统一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管管理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理理·531·.watergasheat.comA2/O3324

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