黑龙江省某石化公司污水处理及回用工程设计

哈尔滨理工大学毕业设计题目：黑龙江省某石化公司污水处理及回用工程设计院、系：化工学院环境工程系姓名：于跃指导教师：闫险峰系主任：艾恒雨2016年6月25日哈尔滨理工大学学士学位论文I黑龙江省某石化公司污水处理及回用工程设计摘要本次设计针对黑龙江省某石化公司污水处理及回用工程，进行了全方面的理论分析，根据石化厂区排放的污水性质和排放标准以及回用水标准制定了一整套的处理方案。本厂排放的污水主要为石化废水，水中主要成分含有石油类污染物和硫化物，生活污水含量少，且COD、BOD5含量较高，B/C为0.24。根据本厂排放的石化废水的以上特点，本次设计设置隔油池、调节池、气浮池、水解池、氧化沟、沉淀池作为初步处理工艺，其中选用卡鲁塞尔型氧化沟作为生化处理阶段。为了使最终出水水质达到回用标准，需进行深度处理，所以又增设活性碳滤池和接触消毒池对污水进行深度处理，经计算，处理后的水质理论上达到回用标准。本设计说明书中内容包括：污水处理规模、处理工艺流程、主要构筑物、厂区平面布置、交通运输、以及投资估算等。关键词石油化工，污水处理厂，污水回用，氧化沟哈尔滨理工大学学士学位论文IIDesignofwastewatertreatmentandreuseprojectofaPetrochemicalIndustriesCoinHeilongjiangProvinceAbstractThedesignforaPetrochemicalIndustriesCompanyinHeilongjiangprovincesewagetreatmentandreuseproject,analyzesallaspectsofthetheory,accordingtothecharacteristicsofwastewateranddischargestandardofpetrochemicalplantemissionsandwaterreusestandardsformulatedasetoftreatmentscheme.Thefactorysewagemainlyforpetrochemicalwastewater,themaincomponentofwatercontainingpetroleumpollutantsandsulfide,sewageandCODcontentofless,higherlevelsofBOD5,B/Cto0.24.accordingtotheabovecharacteristicsofthepetrochemicalwastewaterplantemissions,thisdesignsettheseparationtank,regulatingpond,flotationtank,hydrolysis,oxidationditchprocess,asapreliminarysedimentationtank,theCarrouseloxidationditchasbiochemicaltreatmentstage.Inordertomakethefinaleffluentreusestandards,theneedfordeepprocessing,sotheaddedactivatedcarbonfilteranddisinfectioncontacttankofsewage,aftercalculation,aftertreatmentWaterqualitytheorytoachievethereturnofthestandard.Thedesignspecificationincludes:sewagetreatmentscale,processingprocess,themainstructures,plantlayout,transportation,andinvestmentestimates.KeywordsPetrochemical,Sewagetreatmentplant,Sewagereuse,Oxidationditch哈尔滨理工大学学士学位论文-III-目录摘要......................................................................................................................IAbstract...............................................................................................................II第1章绪论........................................................................................................11.1废水特点分析...........................................................................................11.2自然条件...................................................................................................11.3国内外石化废水处理研究现状...............................................................11.4氧化沟简介...............................................................................................3第2章设计原则、设计任务及设计范围........................................................92.1设计原则...................................................................................................92.2设计任务...................................................................................................92.3设计范围.................................................................................................102.4本章小结.................................................................................................10第3章污水处理工艺设计及计算..................................................................113.1设计污水量.............................................................................................113.2处理后的受纳水体.................................................................................113.3工艺方案选择.........................................................................................113.3.1本项目污水特点..............................................................................113.3.2处理工艺介绍..................................................................................113.4格栅.........................................................................................................123.5隔油池.....................................................................................................143.6调节池.....................................................................................................153.7气浮池.....................................................................................................163.8水解池.....................................................................................................193.9氧化沟.....................................................................................................203.10沉淀池...................................................................................................243.11本章小结...............................................................................................28第4章污泥处理系统......................................................................................294.1污泥处理工艺方案的确定.....................................................................294.2污泥处理工艺流程.................................................................................294.3污泥泵房的设计.....................................................................................294.3.1设计说明..........................................................................................294.3.2设计计算..........................................................................................304.3.3污泥泵房的布置..........