201129*冀忠伦 周立辉 赵 敏 任建科 任小荣(,, 710018) :针对压裂废液黏度高、COD浓度高等特点,研究了一种以絮凝-臭氧催化氧化为主的压裂废液深度处理技术,对絮凝剂加量、助凝剂加量、臭氧加量、反应时间、pH等条件进行了优化,得出了压裂废液处理最佳工艺条件;处理后水质达到GB8979-1996二级指标。:压裂废液;絮凝;臭氧;催化氧化TREATMENTOFFRACTURINGWASTEWATERBYOZONECATALYZEDOXIDATIONJiZhonglun ZhouLihui ZhaoMin RenJianke RenXiaorong(NationalEngineeringLaboratoryofLow-PermeabilityOilandGasExplorationandDevelopment,Oil&GasTechnologyResearchInstitute,ChangqingOilfieldCompany,Xi'an710018,China)Abstract:FracturingwastewaterhasthecharachteristicofhighviscosityandconcentrationofCOD.Thepro-cessingtechnologyofflocculationandozonecatalyzedoxidationwerestudied;flocculantdosage,coagulantdosage,ozonedosage,reactiontime,pHandotherconditionswereoptimized,andoptimumconditionsoffrac-turingwastewatertreatmentwereobtained.Treatedwatercouldachievedthesecond-orderofGB8979-1996.Keywords:fracturingwastewater;flocculation;ozone;catalyzedoxidation*(1004-9)。0 ,、COD、、[1-2],、、、、、。,COD3000~10000mg/L,100~1000mg/L,50~800mg/L。、、、,;[1-7],Fenton,。COD,,、、,GB8978-1996《》。1 1.1 药剂与仪器:()、()。:。1.2 分析方法1。1 CODGB11914-1989GB/T16488-1996GB11901-1989GB11903-19891.3 水样来源B497,,:ρ(COD)5900mg/L,114mg/L,115mg/L。1.4 实验步骤,pH,(PAC),2~3min,(PAM),5~10min,30min,COD、[8-9]。,pH,,10~15min,117DOI:10.13205/j.hjgc.2011.s1.062 201129COD、。2 2.1 絮凝实验2.1.1 PAC500mL,pH7,PAM10mg/L,1.4PAC,COD,COD,1。1 PACCOD1:,COD,200~250mg/LCOD,90%,。,,COD,200~250mg/L。2.1.2 PAMpH7250mg/LPAC,2~3min,PAM,COD,2。2 PAMCOD2:CODPAM,PAM8mg/LCOD,PAM8~10mg/L。2.1.3 pHpH3~9,250mg/L,10mg/L,pH3。3:pH3 pHCOD,pH5~8COD。GB8978-1996,pH6~8。2.2 臭氧催化氧化实验2.2.1 500mL,pH7,TiO2,2h,,COD,COD,COD,4。4 COD4:COD,2mg/L,COD70%,COD。、,2.0~2.5mg/L。,,,,,COD。2.2.2 ,pH7,2.5mg/LTiO2、MnO2、MnSO4[10],,5。5 COD118 2011295:,3COD,TiO2,1g/LCOD。(TiO2MnO2)(MnSO4)。2.2.3 pH,、。pH,;pH,·OH。pH。pHCOD6。6 pHCOD6:pH,COD,、,pH7~9。2.2.4 TiO21g/L,2.5mg/L,pH8,COD,7。7 COD7:COD,2hCOD,2hCOD100mg/L,,2h。2.3 最佳实验条件下处理效果250mg/L,10×10mg/L,2.5mg/L,TiO21g/L,pH8,2hGB8978-1996,2。2 mg/L(pH)ρ(COD)975.31215GB8978-199612010150803 1)COD、,;-,GB8978-1996。2)-:PAC200~250mg/L,PAM8~10mg/L,2.0~2.5mg/L,TiO21g/L,pH7~9,2h,、。[1],,.[J].,2009,19(2):48-50.[2],.Fenton-[J].(),2009,24(5):67-70.[3],,.[J].,2010,33(6E):166-169.[4],.Fenton[J].,2006,35(6):493-495.[5],.[J].,2002,16(6):39-42.[6],.[J].,2005,22(4):55-57.[7],.-Fenton[J].,2010,33(6E):327-330.[8].[J].,2000,10(4):19-21.[9],,.[J].,2008,37(6):36-38.[10],.TiO2[J].(),2009,6(4):179-181. 710018 (029)86590713E-mail jizhlcq@petrochina.com.cn2011-03-11119