金属离子对Fenton法氧化降解PVA纤维的影响研究

详细信息    查看全文 | 推荐本文 |

英文篇名：Influence of metal ion on Fenton oxidation degradation of PVA fibers 作者：刘峰 ; 王阳毅 ; 詹杰 ; 刘夏杰 ; 高强 ; 李梦娟 ; 葛明桥 英文作者：Liu Feng;Wang Yangyi;Zhan Jie;Liu Xiajie;Gao Qiang;Li Mengjuan;Ge Mingqiao;China Nuclear Power Technology Research Institute EMC;Key Laboratory of Eco-Textile,Ministry of Education,Jiangnan University;School of Chemistry and Chemical Engineering,Yangzhou University; 关键词：聚乙烯醇纤维 ; Fenton法 ; 金属离子 ; 氧化降解 ; 化学耗氧量 ; 去除率 英文关键词：polyvinyl alcohol fiber;;Fenton method;;metal ion;;oxidation degradation;;chemical oxygen demand;;removal rate 中文刊名：合成纤维工业 英文刊名：China Synthetic Fiber Industry 机构：中广核研究院有限公司环境工程中心;江南大学生态纺织教育部重点实验室;扬州大学化学化工学院; 出版日期：2019-02-15 出版单位：合成纤维工业 年：2019 期：01 基金：国家重点研发计划子课题(2016YFB0302901-3);; 2016年度江苏省普通高校专业学位研究生实践创新计划项目(SJLX_0481);; 江苏高校优势学科建设工程资助项目(1065211532080020) 语种：中文; 页：16-20 页数：5 CN：43-1139/TQ ISSN：1001-0041 分类号：X703

摘要

研究了Fe~(2+),Cu~(2+),Zn~(2+),Mn~(2+),Sn~(2+)5种金属离子对Fenton法氧化降解聚乙烯醇(PVA)反应的产物相对分子质量、化学需氧量(COD)去除率、PVA去除率的影响。结果表明:第1,2次催化降解PVA的催化效果由强到弱依次为Fe~(2+),Cu~(2+),Mn~(2+),Zn~(2+),Sn~(2+);第3次催化降解PVA的催化效果由强到弱依次为Fe~(2+),Zn~(2+),Mn~(2+),Cu~(2+),Sn~(2+); Fe~(2+),Cu~(2+),Zn~(2+),Mn~(2+)均能有效催化降解PVA溶液,COD去除率达到70%左右,其中Fe~(2+)的COD去除率最高达89. 58%;随着降解次数的增加,Fe~(2+),Zn~(2+),Mn~(2+),Cu~(2+)均能有效催化降解PVA,第3次催化降解后PVA的去除率均达到99%以上,其中Fe~(2+)的PVA去除率最高达99. 31%,但Sn~(2+)催化降解PVA去除率只有42. 08%,不适合采用Sn~(2+)催化降解PVA。
        The effect of five kinds of metal ions,i. e. Fe~(2+),Cu~(2+),Zn~(2+),Mn~(2+) and Sn~(2+),on the relative molecular mass and the removal rates of chemical cxygen demand( COD) and PVA of the product of Fenton oxidation degradation of polyvinyl alcohol( PVA) was investigated. The results showed that the catalyst effect was in the order of Fe~(2+),Cu~(2+),Mn~(2+),Zn~(2+)and Sn~(2+)from high to low during the first and second catalytic degradation of PVA and in the order of Fe~(2+),Zn~(2+),Mn~(2+),Cu~(2+)and Sn~(2+)from high to low during the third catalytic degradation of PVA; all of Fe~(2+),Cu~(2+),Zn~(2+)and Mn~(2+)could provide the efficient catalytic degradation of PVA solution and the removal rate of COD up to 70% or so and Fe~(2+)could provide the maximum COD removal rate of 89. 58%; Fe~(2+),Zn~(2+),Mn~(2+)and Cu~(2+)could catalytically degrade PVA sufficiently while increasing degradation times,the removal rate of PVA could be above 99% after the third catalytic degradation,and Fe~(2+)could provide the removal rate of PVA up to 99. 31%; and Sn~(2+)offered the removal rate of PVA only 42. 08%,which indicated that Sn~(2+)was not suitable for the catalytic degradation of PVA.

引文

[1]周密.UV/Fenton法处理含PVA废水的试验研究[D].长沙:长沙理工大学,2013.
    [2]Ye Bei,Li Yue,Chen Zhuo,et al.Degradation of polyvinyl alcohol(PVA)by UV/chlorine oxidation:Radical roles,influencing factors,and degradation pathway[J].Water Res,2017,124:381-387.
    [3]王阳毅,高强,葛明桥,等.阴离子对Fenton法氧化聚乙烯醇的影响[J].化工环保,2017(6):1006-1878.
    [4]Chen Lihong,Reddy N,Yang Yiqi.Soy proteins as environmentally friendly sizing agents to replace poly(vinyl alcohol)[J].Environ Sci Pollut Res,2013,20(9):6085-6095.
    [5]曹扬.Fenton氧化法降解聚乙烯醇的条件确定及机理初探[D].无锡:江南大学,2005.
    [6]代军,晏华,王雪梅,等.分子量分布对低密度聚乙烯光氧老化特性的影响[J].化工学报,2017,68(1):408-417.
    [7]张健,华伟,张璐,等.水处理工艺过程中有机物分子量分布规律[J].水资源保护,2012,28(1):95-99.
    [8]沈国,李茵.废水处理系统中有机物分子量分布及其变化[J].环境科学与技术,2010,33(11):43-45.
    [9]孙明坤.高浓度氯离子废水COD测试方法综述[J].石化技术,2015,22(04):63.
    [10]何导天.COD测试方法分析及若干问题探讨[J].广东化工,2005(5):50-52.
    [11]Kuba T,Van Loosdrecht M C M,Heijnen J J.Phosphorus and nitrogen removal with minimal COD requirement by integration of denitrifying dephosphatation and nitrification in a two-sludge system[J].Water Res,1996,30(7):1702-1710.
    [12]Zhang Yin,Rong Weiren,Fu Yanbao,et al.Photocatalytic degradation of poly(vinyl alcohol)on Pt/Ti O2with Fenton reagent[J].J Polym Environ,2011,19(4):966-970.
    [13]Lin C C,Lee L T.Degradation of polyvinyl alcohol in aqueous solution using UV/oxidant process[J].J Ind Eng Chem,2015,21(1):569-574.
    [14]Oh S Y,Kim H W,Park J M,et al.Oxidation of polyvinyl alcohol by persulfate activated with heat,Fe2+,and zero-valent iron[J].J Hazard Mater,2009,168(1):346-351.
    [15]Jie Zhang,Wang Shuzhong,Guo Yang,et al.Supercritical water oxidation of polyvinyl alcohol and desizing wastewater:Influence of Na OH on the organic decomposition[J].J Environ Sci,2013,25(8):1583-1591.