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大小:1.34 MB
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时间:2019-06-29
《生物法处理磺化泥浆体系钻井废水的可行性初探》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第22卷第1期石油化工高等学校学报Vol.22No.12009年3月JOURNALOFPETROCHEMICALUNIVERSITIESMar.2009文章编号:1006-396X(2009)01-0005-04生物法处理磺化泥浆体系钻井废水的可行性初探倡郭振英,吕荣湖,张红岩,张志勇,孙惠东(中国石油大学(北京)化工学院环境研究中心,北京102249)摘要:针对采用混凝法处理磺化泥浆体系钻井废水难以达标排放,采用其它物化法处理成本太高的问题,预期采用UV/Fenton氧化-好氧生物法处理。对经UV/Fen
2、ton氧化后的磺化泥浆体系的钻井废水用水质评价法、生化呼吸曲线法和摇床模拟实验3种方法进行了可生化性评价,然后通过间歇式生物处理小试考察了好氧生物法对废水的处理效果,并测定处理钻井废水后污泥的脱氢酶活性(DHA)。结果表明,经UV/Fenton氧化后的磺化泥浆体系钻井废水的可生化性较好,但对其处理时仍需要先进行菌种驯化;污泥经摇床驯化后,在间歇式生物处理小试中,混合液悬浮固体质量浓度(MLSS)为3000mg/L左右,水力停留时间为4h时,出水化学需氧量(COD)去除率最大可达60.7%,生化需氧量(BOD
3、)去除率最大可达94.2%,而且此时污泥活性较高。初步证明了用UV/Fenton氧化-好氧生物法处理钻井废水是可行的。关键词:好氧生物法;钻井废水;可生化性;UV/Fenton氧化中图分类号:X703文献标识码:APreliminaryStudyonDrillingWastewaterCorrelatedWithThree-SulfonatedMudSystemTreatmentWithAerobicProcess倡GUOZhen-ying,L册Rong-hu,ZHANGHong-yan,ZHANGZhi-
4、yong,SUNHui-dong(ResearchCenterforEnvironmentalSciences,FacultyofChemicalScience&Engineering,ChinaUniversityofPetroleum,Beijing102249,P.R.China)Received26December2008;revised11September2008;accepted4December2008Abstract:Drillingwastewatercorrelatedwiththre
5、e-sulfonatedmudsystemhardlyreachthestandardjustbycoagulationprocess,anditcoststoomuchbyotherphysicochemicalprocesses.Accordingtothesecharacteristicsofdrillingwastewatercorrelatedwiththree-sulfonatedmudsystem,UV/Fenton-aerobicprocesswasintendedtouse.Waterqu
6、ality,oxygenuptakerate(OUR)andshake-flaskculturemethodweremensuratedtoassessbiodegradabilityofthedrillingwastewaterwhichwastreatedbyUV/Fentonoxidation.Aftertreatingthewastewater,thedehydrogenaseactivity(DHA)oftheactivatedsludgewastested.Theresultsshowthatt
7、hewastewaterhavegoodbiodegradablepossibility.Whenthemixedliquorsuspendedsolids(MLSS)is3000mg/L,theremovalrateofchemicaloxygendemand(COD)canreachto60.7%andtheremovalrateofbiologicaloxygendemand(BOD)canreachto94.2%in4hbybatchwastewaterbiotreatment.Itprovesth
8、atUV/Fenton-aerobicprocessisfeasibletothedrillingwastewater.Keywords:Aerobicprocess;Drillingwastewater;Biodegradability;UV/Fentonoxidation倡Correspondingauthor.Tel.:+86-10-89733254;fax:+86-10-89733254;e-mail:l
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