Fenton水解接触氧化处理涂装废水工程改造与调试伊学农

Fenton+/11121．2000932．214200。、COD、B/C。B/C0．180．57。Fenton+++++《》GB/T19923—2005“”。[e-mail]issioningofFenton/Hydrolysis/ContactOxidationProcessforCoatingWastewaterTreatmentYIXue-nong1GENGCheng1DONGYan-ling1JIANGZe-ping21．SchoolofEnvironmentandArchitectureEngineeringUniversityofShanghaiforScienceandTechnologyShanghai200093China2．JiangsuNewYutaihuaEnviron-ProtectionGroupCo．Ltd．Wuxi214200ChinaAbstractTheoriginalwastewatertreatmentprocesscouldnotmeettherequirementsduetotheadjustmentofcoatingproductionprocess．Thewastewaterfromthefactorywascharacterizedbycomplicat-edcompositionhighCODlevelandpoorbiodegradability．InadditionthewastewaterlimitedbyterrainconditionscannotbemixedwiththedomesticsewagetoimprovetheB/Cratioduetothesiteconstraintwhichincreasedthedifficultyofwastewatertreatment．TheanalysisbasedonsmalltestshowedthattheB/Cratiocouldbeincreasedfrom0．18to0．57afterthewastewaterwaspretreatedviaFentontechnolo-gy．ThereforethecombinedprocessofFentonreactioncoagulationsedimentationhydrolysisacidifica-tionbiologicalcontactoxidationquartzsandfiltrationandactivatedcarbonfilterwasusedtotreatcoat-ingwastewater．TheactualoperationresultsshowedthatthecombinedprocesshadsignificanttreatmentperformanceandtheeffluentqualitymettherequirementsofwashingwaterinTheＲeuseofUrbanＲecy-clingWater—WaterQualityStandardforIndustrialUsesGB/T19923－2005whichcouldbeuseddi-rectlyaswashingwaterforcoatingcleaningsystemsoastorealizethezerodischargeofindustrial·911·3322201711CHINAWATEＲ＆WASTEWATEＲVol．33No．22Nov．2017wastewater．KeywordscoatingwastewaterFentonhydrolyticacidificationcontactoxidationre-usezerodischarge———、12。、、、PO3－4、、、、COD3。4～9。+。→→→→→→→→→。、、、、、、、。、、、。。150m3/d、1。1、Tab．1DesigninfluentandeffluentqualityoforiginalprocesspHSS/mg·L－1COD/mg·L－1NH3－N/mg·L－16～8200620506～840400306～9≤400≤500—《》GB8978—1996。1。、。调节池混合池絮凝池斜管沉淀池石英砂过滤器活性炭过滤器清水池混凝药剂废水排放反冲洗污泥浓缩池压滤机泥饼外运1Fig．1Flowchartofwastewatertreatmentprocess22.1+。。10～15①、。、、、。②。③。④“”“”16。2.2·021·3322．watergasheat．com、、、、、、、。2。2Tab．2SewagequalityandreusestandardspHSS/mg·L－1COD/mg·L－1NH3－N/mg·L－1BOD5/mg·L－1TP/mg·L－115～610012811．1025015．0825～618012194．802151．011∶15～614012552．902258．016．5～9．0≤30——≤30—2COD620mg/L1255mg/L50m3/d72m3/d145m3/d。C∶N∶P、1∶1、。1∶1B/C0．18。2.3H2O2、Fenton3。3Tab．3EffluentqualityoftestresultsCOD/mg·L－1/%BOD5/mg·L－1B/CH2O285931．52660．3193425．62800．29Fenton50559．82890．57FentonCOD、Fenton。2.42。、COD。、PAMFeOH3SS、。清水池调节池调酸池芬顿反应池絮凝反应池废水斜管沉淀池水解酸化池O级生化池二沉池石英砂过滤器活性炭过滤器H2SO4H2O2PAM污泥回流反冲洗回用污泥浓缩池压滤机泥饼外运2Fig．2Flowchartofwastewatertreatmentprocessafterreconstruction2.5145m3/d《》GB/T19923—2005。2.5.1①1。·121·．watergasheat．comFenton+/332218．0m3。②2。1。211Q=4．5m3/hH=100kPaP=0．37kW11。2.5.23．0m×3．0m×4．5m①。16．0m330%pH3～411。②。4．0m3FeSO4·7H2O1．68g/L30%H2O22．05g/L。③。30%H2O20．75g/L。④。NaOHpH9～10PAM7．5mg/L。2.5.3。①。18．0m39．0m3PP。②。16．0m37．0m3PP。2.5.41．8m2．0m211Q=4．5m3/hH=100kPaN=0．75kW1。2.5.510．0m×3．0m×4．0m①35．0m3PVC。②O45．0m32112．41～2．18m3/min10～50kPa4．0kW1。③15．0m3211Q=15m3/hH=50kPaN=0．55kW。④15．0m31。2.5.6、800mm3．5m0．8m800mm3．5m0．8m。2.5.72．0m2．0m211Q=40m3/hH=200kPaN=2．2kW。2.5.81．5m1．5m。33.1201652—14、。、OO0．5%～0．6%5～6g/L。、C∶N∶P=100∶5∶1。6～8h、1h、1hDO2．0～4．0mg/L。。、COD555～634mg/L、COD122～157mg/LCOD。2016515—61CODO、。O·221·3322．watergasheat．comBOD585%～90%。、。1。3.220166COD2800mg/L。FeSO4·7H2O3．36g/L30%H2O24．10g/L30%H2O21．50g/LCOD700mg/L《》GB/T19923—2005。3.3201641。4201734。4Tab．4TreatingefficiencyofthesystemafterreconstructionpHCOD/mg·L－1BOD5/mg·L－1SS/mg·L－1/%CODBOD5SS5～61260235142———+9～106253055250．4－29．863．48～95503025012．01．03．8+7～8150354172．788．418．0+7～885151043．357．175．66．5～9．0—≤30≤30FentonB/C。4COD50．4%B/C0．48B/C0．55《》GB/T19923—2005。422．84．27×104m3/a6．04/m3。①、、、、24h5．23kW1．16kW·h/m30．65/kW·h0．75/m3。②500/·0．13/m3。③H2O22．80kg/m33．92/m3FeSO4·7H2O1．68kg0．75/m3H2SO40．17/m3NaOH0．09/m3PAM0．07/m30．16/m35．16/m3。5①Fenton+++++《》GB/T19923—2005“”。②、·321·．watergasheat．comFenton+/3322、。③+。1．J．2004641－44．2．J．2016496－97．3．J．2016738－40．4．Fenton——J．2011159－61．5．－－－J．20161235－3549．6．+A/O+MBＲJ．20151236－37．7MahirInce．Treatmentofmanganese-phosphatecoatingwastewaterbyelectrocoagulationJ．SeparSciTechn-ol2013483515－522．8．－－MBＲJ．20144129－131．9ArquiahaMCCanterLWＲobertsonJM．Microbiolog-icalcharacterizationofthebiologicaltreatmentofaircraftpaintstrippingwastewaterJ．EnvironPollut1995892189－195．10．J．2014672－74．11．J．2015661－65．12．J．2011272－75．13．Fenton－J．2013S1147－150276．14．－DAT－IAT－J．2015S1205－208214．15．J．20163222136－140．16．J．2016459－60．1962－。[e-mail]2017－05－08·421·3322．watergasheat．com