不同温度条件水解酸化_好氧工艺处理高矿化度采油废水_祝威

第2卷第6期环境工程学报Vol.2,No.62008年6月ChineseJournalofEnvironmentalEngineeringJun.2008不同温度条件水解酸化-好氧工艺处理高矿化度采油废水祝威1黄翔峰2＊费晓明2张建1桂召龙1谷梅霞1毛雷霆1(1.胜利油田胜利工程设计咨询有限责任公司,东营257026;2.同济大学环境科学与工程学院,污染控制与资源化研究国家重点实验室,上海200092)摘要采用不同温度组合的水解酸化-好氧工艺对胜利油田某联合处理站经过“隔油-混凝-过滤”处理的高矿化度采油废水进行处理。结果表明:水解酸化反应器内的微生物能够适应高温(55℃)的环境,而好氧反应器中微生物的活性会受到高温较大的抑制;“高温水解酸化-中温好氧工艺”和“中温水解酸化-中温好氧工艺”可以使出水COD达到低于80mg/L的外排要求,停留时间分别为15h和7.5h。采用水解酸化-好氧工艺处理高矿化度油田采油废水是可行的。关键词采油废水水解酸化好氧排放温度中图分类号X741文献标识码A文章编号1673-9108(2008)06-0757-05Treatmentofoilfieldproducedwastewaterwithhighmineralityusinghydrolysisacidification-oxidationprocessatdifferenttemperaturesZhuWei1HuangXiangfeng2FeiXiaoming2ZhangJian1GuiZhaolong1GuMeixia1MaoLeiting1(1.ShengliEngineeringDesign＆ConsultationCo.Ltd.,ShengliOilField,Dongying257026;2.CollegeofEnvironmentalScienceandEngineering,StateKeyLaboratoryofPollutionControlandResourceReuse,TongjiUniversity,Shanghai200092)AbstractThetreatmenteffectonoilfieldproducedwaterwithhighminerality,whichwasoriginallytrea-tedby“oilseparation-coagulation-filtration”processatsomeunitedstationinShengliOilFieldofShangdong,wasstudiedusinghydrolysisacidification-oxidationprocessunderdifferenttemperaturecombination.Theresultshowedthatthemicrobesinhydrolysisacidificationreactorcouldbeaccustomedtohightemperature(55℃),whiletheactivityofmicrobesinoxidationreactorweregreatlyinhibitedbyhightemperature.WheninfluentCODwas110～150mg/L,theeffluentCODcouldmeetthedischargingstandardof80mg/Lafterusing“high-tem-peraturehydrolysisacidification-mid-temperatureoxidation”processand“mid-temperaturehydrolysisacidifica-tion-oxidation”processwiththemostoptimalretentiontimewas15hand7.5h,respectively.Itwasfeasibletoapplyhydrolysisacidification-oxidationprocesstotreatoilfieldproducedwastewaterwithhighminerality.Keywordsoilfieldproducedwastewater;hydrolysisacidification;oxidation;discharge;temperature基金项目:上海市科委资助项目(045458058)收稿日期:2007-08-06;修订日期:2008-01-31作者简介:祝威(1968～),女,硕士,高级工程师,主要从事油田水污染控制研究。＊通讯联系人,E-mail:hxf@mail.tongji.edu.cn在油田开发过程中,需向地层注入大量水以保持油层压力,随着