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2、3): 60- 62. 5SE I. l SsZEM .:SS, 1989. 424- 426. 6 Z, ,u . E l !9 J. , 1998, 19(3): 21- 25. 7 Jeffrey A, Franz. E lectrolytic oxygen generation for subsurfacedelivery: Effects of precipitation at the cathode and an assess-mentof side reactions J. W aterResearch, 2002( 36): 2 243-2 254.M1D : 1 I, ,A,
3、.;b) c ol J. S, 2006, 19( 1): 30- 34. 2:_, .E ) l / J. F , 2004, 35( 6): 67- 70.3Sk, ,u .S =l ) C J./ , 2003, 21( 5): 15- 17. 4 , i .Bl ) / # J.I , 2003, 23( 1): 95- 98. 5v.B ) J. , 2002(9):16- 17. 6,),y.B ) C#?ZZ_ J. S, 2001, 27(6): 11- 12. 7r,.Sl ) / Z J.B , 2000, 10( 2): 19- 21.Treatment of oil p
4、roduction wastewater by electrolytic oxidation methodPang Juanjuan(W ater Supply and DrainageW orkshop of Dagang Petrochem ical Company, PetroChina, Tianjin 300280, China)Abstract: O il production wastewaterw ith pH va-lue 7. 0, the concentration of CODCr and NH3- N476. 0mg/L and 53. 6 mg/L respecti
5、vely was trea-ted by electrolytic oxidationmethod, under the con-ditions ofdepositing chlorine anode and iron cathodeas work electrodes, current density 15 mA /cm2,electrolysis time80min, ratio of electrode plate sur-face area towater volume 0. 1 cm2 /cm3, alkalescentof pH value and electrodes dista
6、nce10mm. The re-sults showed that removal rate ofCODCr and NH3 -N could reach 73. 2% and 98. 5% respectively. Thewater quality of oil production wastewater disposedby electrolysis couldmeet the requirement of thena-tional second class discharge standard.Key words: oil productionwastewater; electroly-tic oxidation; chemicaloxygen demand; removal rate#505# 6 1E) l
