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时间:2020-05-15
《铁炭法与过化氢投加比例.doc》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、本帖最后由cdpulin于2010-5-517:00编辑4y$~5J9t2s2W&]){3~:G(F2^9Z$l%F;@1F8v铁炭微电解—Fenton试剂联合氧化深度处理印染废水的研究4g$n)`$o*G摘要:采用铁碳微电解—Fenton联合氧化技术对印染废水生化处理的出水进行深度处理。通过正交试验考察了pH值、H2O2投加量、铁碳体积比、反应时间对处理效果影响的大小,分别为pH〉铁碳体积比〉H2O2用量〉反应时间。并通过单因素实验确定在最佳反应条件下:pH为2~3,H2O23.2mL/L,铁碳体积比为1:1
2、,反应时间为90min,COD的去除率能够达到90%以上,色度去除率为99%,盐度去除率为64%。各项指标均达到了印染水的回用指标。0Z+6B7s4O&a:y2n4L3l#])^$N*M/v.g9W+Z-T#~-?关键词:铁碳微电解;Fenton试剂;印染废水;深度处理。"[.~0g0[8F(S.X&B*C"c8s$U4S;? c)l8o*Y9_'M中图分类号:X703.1 文献标识码:A1y'_*N#V+r2X"G2l"f6L4}/N4H9^-D'l*h5NStudyon
3、advancedtreatmentofprintinganddyeingwastewaterbyjointoxidationtechnologyofiron-carbonmicro-electrolysisand !^-L$o1K7K/}&r2U96lFentonreagents5R6i%s'
4、5o9X5l-y"T*u.p0[.G0Y-yJIANGXing-hua1,LIUYong-jian2,JINLiang-ji1&g-n&m S4u1y8c1m*E"}"_#i,]9j3A(1.Dep
5、artmentofEnvironmentalScienceandEngineering,Suzhou Univ.ofScienceandTechnology.Suzhou215011China;DepartmentofChemicalandBiologicalEngineering,Suzhou Univ.ofScienceandTechnology.Suzhou215011China;).k)`4k1I0H3u5y:W$o5L-v,'P%s"L3q7b;CAbstract Advancedtreatm
6、entofprintinganddyeingwastewaterbyjointoxidationtechnologyofiron-carbonmicro-electrolysisandFentonreagentswasstudied.Orthogonalarrayexperimentswasdesignedtostudythedifferentdegreeof impactonthetreatmenteffection.TheresultwaspH〉volumeratioofironandcarbon〉H2O
7、2dosage〉reactiontime.Itisfoundbysingle-factorexperimentsthatthebestexperimentalconditionsareasfollows:pHis2to3,H2O2dosageis3.2mL/L,volumeratioofironandcarbonis1:1,reactiontime90min.Inthiscondition,theremovalratesofCOD,chromaandsalinitycanreach91%,99%and64%re
8、spectively.Eachmetthereuserequirementsofprintinganddyeingwater.0D'[!l&Q,?5i4j(z.h#^#@47K)X0m1{&j5KKeywords:iron-carbonmicro-electrolysis;Fentonreagents;printinganddyeingwastewater;advancedtreatment.4{ q1e%Q6r.H/N7?0
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11、!G/F(T5N#~)E/a 印染行业近几年来需水量和排水量大幅增长(1)。对印染废水的深度处理并进行回用,既能够减少环境污染又能缓解水资源短缺的危机(2)。印染废水二级出水色度高,COD难以去除,造成这种状况的因素除了生物处理负荷低于实际要求的COD负荷以外,还因为废水中存在大量的难以被生物降解的各种复杂的有机物(3~4),如苯胺、硝基苯、偶氮染料等。因此印染废水的深度处理主要是对
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