酸化-混凝-催化氧化联合处理钻井废液研究
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2019-06-10 13:40:38
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酸化-混凝-催化氧化联合处理钻井废液研究酸化-混凝-催化氧化联合处理钻井废液研究①杜国勇黄蓉曾扬(西南石油大学化学化工学院)摘要油气田钻井废液一直是油田治理环境风险的难题,本实验以某油田钻井废液为研究对象,其COD值高达67920mg/L,通过酸化-混凝-催化氧化等联合工艺对其进行处理,重点考察新型混凝剂PAZC的制备及其二氧化氯催化氧化过程的最佳工艺条件,处理后其COD值能降到126.9mg/L,达到GB/T8978-1996《污水综合排放》的二级排放标准。关键词钻井废液酸化混凝催化氧化联合工艺中图分类号:X741文献标志码:ADOI:10.3969/j.issn.1007-3426.2013.06.025Combinedtreatmentofacidification-coagulation-catalyticoxidationofdrillingwasteDuGuoyong,HuangRong,ZengYang(ChemistryandChemicalEngineeringInstitute,SouthwestPetroleumUniversity,Chengdu610500,Sichuan,China)Abstract:Thedrillingwastewaterfromoilandgasfieldhasbeenaproblemofenvironmentalriskforoilfieldmanagement.Inthisexperiment,theoilfielddrillingwastewaterwasputastheresearchobject,inwhichtheCODvaluereachedupto67920mg/L.ThepreparationofanewcoagulantPAZCandoptimumconditionsofchlorinedioxidecatalyticoxidationprocessbyacidifi-cation-coagulation-catalyticoxidationprocessweremainlyresearched.TheCODvaluecouldbereducedto126.9mg/Laftertreatmentandachievedthesecondarydischargestandardof“Inte-grat
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