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ID:9026750
大小:1.34 MB
页数:42页
时间:2018-04-15
《印染废水的深度处理与回用的关键技术研究毕业论文》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、毕业论文作者:吕磊学号:09041501217院系:化学工程学院专业:生物091题目:印染废水的深度处理与回用的关键技术研究指导者:贾艳萍副教授评阅者:2013年6月吉林摘要摘要印染行业是工业废水排放大户,每年产生大量印染废水,占总工业废水排放量的35%,且废水中含有大量染料、浆料、表面活性剂、碱剂等复杂成分,具有机物浓度高、成分复杂、可生化性较差、色度深、碱性大、pH高、水质变化大等特点。本实验采用序批式活性污泥法(SBR),以模拟污水为处理对象,研究同步硝化反硝化脱氮工艺及各主要影响因素,确定实现同步硝化反硝化脱氮的最佳工况。该实验结果表明,通过控制不同粉煤灰的量,来达到废
2、水的脱色效果。在稳定运行期间,模拟废水浓度为20~60mg/L,温度为36℃,氨氮去除率可达到80%,最终确定的最佳运行方式:瞬间进水→曝气6(h)→缺氧搅拌3(h)→沉降2.9(h),周期为12(h)。关键词:SBR工艺,印染废水,脱氮,同步硝化反硝化IAbstractAbstractEmittersisindustrialwastewater,printinganddyeingindustryeachyearalargenumberofprintinganddyeingwastewater,accountedfor35%oftotalemissionsofindustria
3、lwastewater,andwastewatercontainsalargenumberofdye,sizingagent,surfactant,alkaliagentsuchascomplexingredients,highconcentrationsoforganicmatter,complicatedcomposition,andbiochemicalresistanceispoorer,deepchromaticity,highalkalinity,pH,waterqualitychangeisbig,Inthisstudy,asequencingbatchreact
4、oractivatedsludgeprocess(SBR)wasused,Tosimulateasewageasprocessingobjectmainlyresearchsimultaneousnitrificationanddenitrificationprocessandthemainfactorstodeterminethebestconditionstoachievesimultaneousnitrificationanddenitrification.Wastewaterform20to60mg/L,andthetemperatureis36℃,theammonia
5、removalefficiencycanreach80%andthetotalnitrogenremovalrateof57%.Ultimatelydeterminethebestoperatingmode:momenmtintowater→aeration6(h)→anaerobicstir3(h)→precipitation2.9(h),12(h)cycle.Keywords:SBRprocess,Simulatedwastewater,nitrogenremoval.simultaneousnitrificationanddenitrificationII目录目录摘要..
6、..........................................................................................................................IAbstract..........................................................................................................................II目录...................................
7、.......................................................................................III第1章绪论................................................................................................................11.1课题研究背景...............................
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