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ID:28348282
大小:10.93 MB
页数:70页
时间:2018-12-09
《fec微电解法预处理含铜电镀废水的分析》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、优秀毕业论文青岛科技大学研究生学位论文Fe/C微电解法预处理含铜电镀废水的研究摘要电镀行业废水水质较复杂,通常含有大量的重金属和螯合物,对人类健康和环境产生严重威胁。根据青岛某电子有限公司的电镀废水中含有大量Cu2+和有机物的特点,本实验采用Fe/C微电解.絮凝法、Fe/C微电解.Fenton.絮凝法及Fe/C微电解.纳米Ti02光催化.絮凝法三种方法处理此电镀废水并对处理结果进行了比较。实验结果表明:利用Fe/C微电解.絮凝法时,在初始pH值--4、Fe/C(质量)=2/1、Fe投加量=609/L、反应时间=60rain时,絮凝出水
2、Cu2+含量由641.78mg/L降至0.32mg/L,还原率高达99.95%,同时CODc,去除率23.57%。利用Fe/C微电解.Fenton.絮凝法时,当微电解pH值=3、Fe/C(质量)=1/2、Fe加入量=609/L、微电解时间=60rain、FentonpH值=6、C(30%m02、=12ml/L、絮凝pH值=9.5时,Cu2+还原率为96.24%,CODcr去除率提高至55.20%。利用Fe/C微电解一纳米Ti02光催化.絮凝法时,Fe/C微电解初始pH值为3、Fe/C质量比为l/1、Fe投加量为60∥L,反应时间为60
3、min;光催化pH值为3,Ti02加入量为40ml/L,紫外光照时间60rain,Cu2+去除率达到99.98%,CODCr去除率提高至60%。经过三种方法的处理,出水Cu2+含量达到山东省半岛流域水污染物综合排放I级标准,CODc,去除率最高可达到60%,为后续的的处理创造了条件。关键词:Fe/C微电解含铜电镀废水Fenton试剂纳米Ti02精品参考文献资料优秀毕业论文青岛科技大学研究生学位论文PRETREATMENTOFELECTRoPLATINGWASTEⅥ陷汀ERCoNTAININGCOPPERIONSBYFe/CMICRoE
4、LECTRoLYSISPROCESSABSTRACTThecomponentofelectroplatingwastewatercontainingalotofheavymetalsandchelatesiscomplex,andcausesseriousharmtothehealthofhumanbeingsandtheenvironment.Accordingtothecharacteristicsofelectroplatingwastewatercontaininghi曲concentrationofcopperionsand
5、organicmatterfromanelectroniccompanyinQingdao,iron—carbonmicroelectrolysis—flocculating,iron-carbonmicroelectrolysis-Fenton—flocculatingandiron-carbonmicroelectrolysis-nanometertitanium—photocatalysis-flocculatingwereappliedinthepretreatmentofwastewater.Theexperimentsre
6、sultsindicatedthattheconcentrationofcopperionsinelectroplatingwastewaterdecreasesfrom641.78mg/Lto0.32mg/Landtheremovalefficiencyachieves99.95%wheninitialpHvalue4,Fe/C(quality)2/1,thedosageofFe60∥Landthereactiontime60rainbyiron—carbonmicroelectrolysis-flocculating.Pretre
7、atmentaccomplished96.24%ofcopperionsremovalandimproved55.20%ofCODcrremovalwhenpHvalueofmicroelectrolysis4,Fe/C(mass)112,thedosageofiron60lg/L,reactiontime60min,pHvalueofFenton6,thedosageof30%H20212ml/LandpHvalueofflocculating9.5byiron-carbonmicroelectrolysis-Fenton—floc
8、culating.Theremovalrationsofcopperionsreaches99.98%andCODcrintheeffluentwaterimproved60%whentheFe/Cmicroelectr
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