水解酸化-好氧-Fenton氧化工艺处理制浆造纸废水工程实例
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2020-04-29 12:55:34
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·工业给排水·水解酸化_好氧一Fent0n氧化工艺处理制浆造纸废水工程实例时孝磊李锋民胡洪营。(1清华大学环境学院环境模拟与污染控制国家重点联合实验室,北京100084;2中国海洋大学环境科学与工程学院,青岛266100;3清华大学深圳研究生院,深圳518055)摘要以某大型制浆造纸厂废水处理工程为例,介绍了水解酸化一好氧生物处理联合Fenton氧化深度处理工艺在造纸和制浆中段废水处理中的应用。厂内造纸废水量为O.77万~2.91万/d,COD为2150~4430mg/L,SS为1316~2414mg/L,经生化处理后,出水COD和SS平均分别为309mg/L和53rng/L;制浆废水量为0.84万~3.68万m3/d,COD为1720~4360mg/L,SS为l184~1994mg/L,生化处理出水COD和SS平均分别为370mg/L和56mg/L。两种废水的生化处理出水经Fenton氧化和絮凝沉淀处理后,出水COD为67--'98mg/L,SS为21~29mg/L,可达《制浆造纸工业水污染物排放标准》(GB3544-2008)~放要求。废水处理成本为2.01元m。,具有良好的经济效益和环境效益。关键词造纸废水水解酸化好氧Fenton氧化Applicationofhydrolyticacidification。。aerobicbiologicaltreatment。‘fentonprocessinpulpingandpapermakingwastewatertreatmentShi。Xiaolei,LiFengmin,HuHongying,。(1.EnviromnentalSimulationandPollutionControlStateKeyJointLaboratory,SchoolofEnvironment,TsinghuaUniversity,Beijing100084,China;2.CollegeofEnvironmentalScienceandEngineering,OceanUniversityofChina,Qingdao266100,China;3.GraduateSchoolatShenzhen,TsinghuaUniversity,Shenzhen518055,China)Abstract:Theapplicationofhydrolyticacidification—aerobicbiologicaltreatment—fentonprocesstotreattheregeneratedpapermakingandwoodpulpingmiddle——stagewastewaterofalarge—‘scalepapermak——ingenterprisewasintroduce&Theresultsshowedthatwhentheirdluentflux,CODandSSoftheregener-atedpapermakingwastewaterwere0.77×10~2.91×10m3/d,2150~4430mg/Land1316~2414mg/Lrespectively,theaverageefiuentCODandSSwere309mg/Land53mg/Lrespectivelythroughthebio—chemica1treatment.Ⅵentheirdluentflux。CODandSSwere0.84×10~3.68×1Om。/d,1720~4360mg/Land1184~1994mg/Lrespectively,theaverageCODandSSintheeffluentfrombio—treatmentwere370mg/Land56mg/Lrespectively.Whenthemixedwastewaterofthesetwobio—chemicaleffluentswastreatedbyfentonoxidationandflocculationsedimentationprocess,theeffluentCODandSSdecreasedto67~98mg/Land21~29mg/Lrespectively,whichmettheDischargestandardofwaterpollutantsforandpaperindustry(GB3544-2008).treatmentcostwasaboutCNY2.01/m,whichhasgoodeconomicandenvironmentbenefits.Keywords:Pulpingwastewater;Hydrolyticaddification;Aerobic;Fentonoxidation国家水体
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