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ID:35133123
大小:1.68 MB
页数:65页
时间:2019-03-19
《试析二氧化氯预氧化处理含铁含锰地下水的工艺研究》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、青岛理工大学工学硕士学位论文摘要我国含铁含锰地下水分布十分广泛,对人们的生活和工业生产产生了许多不利的影响。而现行的除铁锰工艺一般存在着启动慢、流程复杂、除铁锰效果不稳定的现象。本研究对常见范围的含铁锰水,采用二氧化氯预氧化的工艺,探讨了工艺应用的参数以及控制亚氯酸根副产物氧化性能的条件,为提供一套高效实用的除铁除锰处理工艺提供参考。采用杯罐试验和模拟试验分别研究了二氧化氯预氧化除铁除锰的各种影响因素,同时对二氧化氯氧化过程中亚氯酸根的产生以及控制进行了研究。试验结果表明:pH值、铁锰浓度、二氧化氯投加量、原水碱度以及滤速是除铁除锰过程的主要影响因素。对初始浓度为2~9mg/L的含
2、铁地下水,在滤速为2~Sm/h,5.89)H郅.6,二氧化氯投量为o.242_</ClOe]/[Fe2+】_<0.387时,能有效将水中铁离子降到O.3mg甩以下;对初始浓度为1~4mg/L的含锰地下水,5.83、,一方面减少作为副产物亚氯酸根的残留浓度,另一方面可大大减少二氧化氯的实际投加量。实验表明当pH值大于6.6时,R需[aOz]/[Fe2+】:o.242,即可满足除铁的要求,同时可有效控制亚氯酸根残留浓度。关键词:地下水除铁除锰二氧化氯预氧化亚氯酸根重星堡三奎耋三耋堡圭耋堡堡圣AbstractIron&manganeseareusuallypresentingroundwaterinChinaandcausealotofdisadvantagestohumanlifeandindustry.Conventionaltreatmentforiron&manganeseremovale4、xitsstartlowly,complexintechnique,unstableiniron&manganeseremoval.ThisresearchuseC102preoxidationforiron&manganeseremovalandstudiedfactorsofthetreatmentandhowtocontroloxidationofchloriteinawiderangeofwatercontainediron&manganese.Thisresearchprovidesareferenceforahi。gheffectiveandusefuliron&man5、ganeseremovaltechnique.Ajarandsimulateddistributionsystemtestwerecarriedoutthroughthelabtoinvestigatetheimpactofeachfactor,inadditionstudiedchloriteproducingandcontrollingduringchlorinedioxideoxidation.TheresultsshowsthatpHvalue,theconcentrmionofiron&manganese,dosageofchlorinedioxide,hardnessa6、ndfiltrationratearethemainlyfactorsduringiron&manganeseremoval.Whentheconcentrationofironisbetween2~9mg/L,filtrationrateisbetween2~8m/h,5.87、5s[C102]/[MnZqSl.25,chlorinedioxideCanreducetheinfluentmanganeseconcentrationto0.1mg/L.Inordertocontroltheconcentrationandke印theoxidationefficiencyofchlorite,pHvaluehastokeepamorehigherstandard。Throughtheresearch,chlorinedioxidepreoxida
3、,一方面减少作为副产物亚氯酸根的残留浓度,另一方面可大大减少二氧化氯的实际投加量。实验表明当pH值大于6.6时,R需[aOz]/[Fe2+】:o.242,即可满足除铁的要求,同时可有效控制亚氯酸根残留浓度。关键词:地下水除铁除锰二氧化氯预氧化亚氯酸根重星堡三奎耋三耋堡圭耋堡堡圣AbstractIron&manganeseareusuallypresentingroundwaterinChinaandcausealotofdisadvantagestohumanlifeandindustry.Conventionaltreatmentforiron&manganeseremovale
4、xitsstartlowly,complexintechnique,unstableiniron&manganeseremoval.ThisresearchuseC102preoxidationforiron&manganeseremovalandstudiedfactorsofthetreatmentandhowtocontroloxidationofchloriteinawiderangeofwatercontainediron&manganese.Thisresearchprovidesareferenceforahi。gheffectiveandusefuliron&man
5、ganeseremovaltechnique.Ajarandsimulateddistributionsystemtestwerecarriedoutthroughthelabtoinvestigatetheimpactofeachfactor,inadditionstudiedchloriteproducingandcontrollingduringchlorinedioxideoxidation.TheresultsshowsthatpHvalue,theconcentrmionofiron&manganese,dosageofchlorinedioxide,hardnessa
6、ndfiltrationratearethemainlyfactorsduringiron&manganeseremoval.Whentheconcentrationofironisbetween2~9mg/L,filtrationrateisbetween2~8m/h,5.87、5s[C102]/[MnZqSl.25,chlorinedioxideCanreducetheinfluentmanganeseconcentrationto0.1mg/L.Inordertocontroltheconcentrationandke印theoxidationefficiencyofchlorite,pHvaluehastokeepamorehigherstandard。Throughtheresearch,chlorinedioxidepreoxida
7、5s[C102]/[MnZqSl.25,chlorinedioxideCanreducetheinfluentmanganeseconcentrationto0.1mg/L.Inordertocontroltheconcentrationandke印theoxidationefficiencyofchlorite,pHvaluehastokeepamorehigherstandard。Throughtheresearch,chlorinedioxidepreoxida
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