短程硝化反硝化生物脱氮技术研究姚阔为

油气田环境保护第16卷第4期·19·短程硝化-反硝化生物脱氮技术研究0·20·2006年12月油气田环境保护油气田环境保护第16卷第4期·21··57·technologicalprocessofadvancedtreatmentrefiningwastewatereuseprocess“coagulationflotation-ozonationandbiologicalactivatedcarbon”isintroducedbasedonoriginalozonationandbiologicalactivatedcarbontreatmentprocess,whichcouldreduceengineeringinvestmentandtreatmentcost,increaseeconomicbenefitofwastewaterreuse.Someproblemsanditsrelativemeasuresinthecourseofthisresearchareproposed.Thepracticalapplicationshowsthatthetechniqueshouldbeenefficientforoilrefiningwastewaterreuse.Therefore,itisworthyofstudyandpracticalityinoilrefiningengineeringapplication.Moreover,itcouldbeareferenceforselectingtreatmentprocessesofrelevantwastewaterreuseduetothefactthatthewastewaterfromthisenterpriseisarepresentativeoneofthesameprofession.Keywordsoilrefiningwastewater,coagulationflotation-ozonationandbiologicalactivatedcarbon,advancedtreatment,reuseResearchonHarmandControlTechniquesofOver-standardNoiseinHigh-pressureWaterInjectionPumpRoom14ZhangGuohuaDepartmentofQuality,SafetyandEnvironmentalProtection,PetroChinaLiaoheOilfieldCompanyABSTRACTInordertolowerthenoiseinhigh-pressurewaterinjectionpumproomandreducetheharmofthenoisetotheemployee,theLiaoheOilFieldCompanyanalyzedthenoisecharacteristicsandtheharmofnoisetotheemployeeinthehigh-pressurewaterinjectionpumproomoftheCi-3waterinjectionstationintheCiyutuooilproductionplant.Themeasuresforcontrollingthenoiseincludingthesoundabsorption,soundinsulationandvibrationisolationtechniqueswereadoptedinthisstation.Theresultshowedthatnoisedatainthehigh-pressurewaterinjectionpumproomloweredfrom88-99dBto73-81.5dBofonewaterinjectionpumprunning.Thenoiseoftherestroomandofficeloweredfrom60-75dBto42-48dB,whichsatisfiedtherequisitionoftheIndustryUndertakingDesignHealthStandard(GBZ1-2002).KEYWORDShigh-pressureinjection-pumproom;noisecontrol;soundabsorption-soundinsulation-vibrationisolationtechnologyPredictionofScalingTendencyinWaterInjectionSystemofChunhuaOilfield17LiKehuaYangMinWuJiazhong(CollegeofChemicalandEnvironmentalEngineering,YangtzeUniversity)ABSTRACTInorganicscalingisoneofthesevereproblemsintheprocessofwater-floodingofoilfielddevelopment,whichresultsingreateconomiclossduringoilproduction.Itisnecessarytopredictscalingscientificallyandproposethereasonablemeasureforscaleprevention.ThescalingtendencyanddegreeinwaterinjectionsystemofChunhuaOilfieldwaspredictedbyusingsaturationindexequation,stabilityindexequationandsolubilitymethods.TheresultsshowthatcalciumcarbonatescalemaybeformedinwastewaterofChunhuaOilfield,butnosulfatedeposit.Somesuggestionsforscalepreventionwerepresented.KEYWORDSChunhuaOilfield;scalingprediction;quantitativeanalysisDiscussiononShortcutNitrification-denitrificationforNitrogenRemoval19YaoKuowei1YangJian1NieJing1WangZhiqiang2(1.CollegeofEnvironmentalScienceandEngineering,TongjiUniversity;2.WaterConservancyDepartment,DezhouCity)ABSTRACTThecomparisonofshortcutnitrification-denitrificationtechnologywiththetraditionaltechnologywasmade.Themechanismandcharacteristicsoftheshortcutnitrification-denitrificationtechnologyweredescribed.SeveralfactorsaffectingNO2-Naccumulation,includingtemperature,dissolvedoxygenconcentration,pHvalue,freeammoniaconcentrationandsludgeretentiontime,wereanalyzed.Bycomparisonwiththetypicalprocesses,theexistingproblemsandseveralsuggestionsforthistechnologywerepresented.KEYWORDSshortcutnitrification-denitrificationbiologicalnitrogenremovaltechnology;nitrite·58·accumulation;affectingfactorStudyonOilMigrationinOilySludgeafterSolidificationTreatment22HuYaoqiang1ZhangNingsheng2QuChengtun1WangXinqiang1(1.CollegeofChemistryandChemicalEngineeringXi’anShiyouUniversity;2.CollegeofPetroleumEngineeringXi’anShiyouUniversity)ABSTRACTTheeffectsofparametersincludingtime,temperaturehumidityandthecement-sludgeratioonbehaviorofoilmigrationinsolidifiedoilysludgeafterwereinvestigatedbyusingextractionandultravioletspectrophotometer.Theexperimentalresultsindicatedthatthequantityofoilmigrationvariedfrom6.8mgin240hoursto178mgin480hoursforsolidifiedoilysludgewithapressurestrengthof3.84MPa.Then,thevariationgotslower.Themigrationquantitywasenhancedfrom6.8mgto20.6mgwiththeincrementoftemperatureintherangeof2030.Thetrenddisplayedfinewhenthetemperaturewasover30.Theamountofoilmigrationreducedfrom256mgto27.2mgwhileincreasingthecement-sludgeratiointherangeof1:0.8to1:1.4.Themigrationquantitycouldgetto348mgin960hours.Bymeansofself-purificationsoilhadnotbeenpolluted.Whenthepressurestrengthofoilysludgewasover9.56MPa,oilwasunfoundintheoilysludge.Thereby,solidificationmethodisreliablefortreatmentofoilysludge.KEYWORDSoilysludge;solidificationtreatment;oilmigration;environmentalprotecitonComparsonofBiologicalToxicityAssessmentMethodsforDrillingFluids25HuangXuejingCuiMaorongZhouChanghongMaYongBaiLiyeSouthwestPetroleumInstituteABSTRACTThebiologicaltoxicityassessmentmethodsfordrillingfluidsincludingtheopossumshrimpmethod,neomysisawatschensismethod,photogenicbacteriamethodandluminousalgaemethodusedathomeandabroadnowwereanalyzed.Theadvantagesand