VUV/O_3降解选矿药剂酯-105的实验研究

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英文篇名：Degradation of Ester-105 of Beneficiation Reagent by VUV/O_3 作者：张大超 ; 吴梦 ; 陈敏 ; 廖圆圆 ; 王春英 英文作者：ZHANG Dachao;WU Meng;CHEN Min;LIAO Yuanyuan;WANG Chunying;School of Resources and Environmental Engineering, Jiangxi University of Science and Technology;Jiangxi Key Laboratory of Mining & Metallurgy Environmental Pollution Control; 关键词：VUV/O_3法 ; 酯-105废水 ; 羟基自由基 英文关键词：VUV/O_3 method;;ester-105 wastewater;;hydroxyl radicals 中文刊名：水处理技术 英文刊名：Technology of Water Treatment 机构：江西理工大学资源与环境工程学院江西省矿冶环境污染控制重点实验室; 出版日期：2019-05-14 11:55 出版单位：水处理技术 年：2019 期：05 基金：中国博士后科学基金项目(2015M582776XE,2016T90967) 语种：中文; 页：83-87 页数：5 CN：33-1127/P ISSN：1000-3770 分类号：X751

摘要

针对选矿废水残留大量浮选药剂、成分复杂,制约了矿山废水回用的问题,采用VUV/O_3的方法研究处理含酯-105的选矿模拟废水。结果表明,同等反应条件下,15 min内3种工艺对酯-105废水的降解效果为VUV/O_3> O_3> VUV。在VUV光源功率15 W,溶液初始pH=10,O_3的质量流量为6 g/h,反应10 min后,VUV/O_3对酯-105废水的降解效果最好,降解率达到98.71%;6种共存离子对VUV/O_3降解酯-105废水的影响作用大小为Ca~(2+)>CO_3~(2-)>SO_4~(2-)>SiO_3~(2-)>Cl~-(Na~+)。VUV/O_3在降解酯-105废水的过程中,HO·对酯-105废水的降解起主要作用,反应20 min后,溶液中TOC的降解率达到平衡,TOC的质量浓度下降了4.48 mg/L。由此可见,利用VUV/O_3技术对酯-105进行处理,高效可行,且无二次污染。
        The reuse of mine wastewater is restricted for the large amount of complex flotation reagents remaining in the beneficiation wastewater. The treatment of beneficiation simulated wastewater containing ester-105 by VUV/O_3 was studied. The results showed that, the degradation effects of three processes on ester-105 wastewater within 15 min were: VUV/O_3> O_3> VUV. Under the conditions of VUV light source was 15 W, initial pH was 10,the mass flow rate of O_3 was 6 g/h, after 10 min reaction, VUV/O_3 had the best degradation effect, and the degradation rate of ester-105 wastewater rate reached 98.71%. The effects of 6 kinds of coexisting ions on the degradation of ester wastewater by VUV/O_3 were: Ca~(2+)>CO_3~(2-)>SO_4~(2-)>SiO_3~(2-)>Cl~-(Na~+).The main effect of the degradation of ester-105 wastewater was HO·, after 20 min, the degradation rate of TOC in the solution reached a balance, and the mass concentration of TOC decreased with 4.48 mg/L. It can be seen that the treatment of ester-105 by VUV/O_3 technology is efficient and feasible without secondary pollution.

引文

[1]ZENG V,LI J Z,QIN S.Dioxygen affinites and biomimetic eatalytic performance of transtion metal hydroxamates[J].Reaction Kinetics and Catalysis Letters,2003,79:111-117.
    [2]白小霞,杨庆,丁昀,等.催化臭氧氧化处理难降解石化废水技术的研究进展[J].化工进展,2016,35(1):263-268.
    [3]SONG S,HE Z,CHEN J.US/O-3 combination degradation of aniline in aqueous solution[J].Ultrasonics Sonochemistry,2007,14(1):84-88.
    [4]刘馥雯,郭琳,刘晨,等.选矿废水处理及回用技术进展[J].有色金属科学与工程,2017,8(1):134-138.
    [5]王自超,刘兴宇,宋永胜.臭氧生物活性炭工艺处理某多金属硫化矿浮选废水的小试研究[J].环境工程学报,2013,5(1):1723-1728.
    [6]BABATUNDE A O,ZHAO Y Q,O'NEILLM,et al.Constructed wetlands for environmental pollution control:A review of developments,research and practice in Ireland[J].Environment International,2008,34(1):0-126.
    [7]IAKOVLEVA E,SILLANP魧魧M.The use of low-cost adsorbents for wastewater purification in mining industries[J].Environmental Science and Pollution Research,2013,20(11):7878-7899.
    [8]邢瑞,温东辉,唐孝炎.紫外与真空紫外深度处理焦化废水的试验研究[J].北京大学学报(自然科学版),2012,48(4):639-646.
    [9]DONG Y B,LIN H,LIU Q L,et a1.Treatment of flotation wastewater using biological activated carbon[J].Journal of Central South University,2014,21(9):3580-3587.
    [10]CHEN C,CHEN H,GUO X,et al.Advanced ozone treatment of heavy oil refining wastewater by activated carbon supported iron oxide[J].Journal of Industrial&Engineering Chemistry,2014,20(5):2782-2791.
    [11]罗仙平,陈春飞,梁任章,等.La/TiO2制备及其光催化降解浮选药剂酯-105的研究[J].稀有金属,2015,39(11):1010-1017.
    [12]欧阳魁.臭氧法处理硫化矿选矿废水的新工艺及其机理研究[D].长沙:中南大学,2009.
    [13]郭志峰,马瑞欣,李国俊,等.气质联用测定超声波降解废水中的苯酚含量及机理研究[J].河北大学学报(自然科学版),2005,5(3):290-295.
    [14]CHEN Q Q,WU P X,LI Y Y,et a1.Heterogeneous photo·Fenton photo degradation of reactive brilliant orange X-GN over iron-pillared montmorillonite under visible irradiation[J].Journal of Hazardous Materials,2009,168(2/3):901-908.
    [15]王兵,张悦,任宏洋,等Mn3O4催化臭氧化钻井废水的作用机理[J].环境工程学报,2015,9(10):4811-4816.
    [16]张大超,陈敏,代振鹏,等.真空紫外/空气氧化降解苯甲羟肟酸模拟废水[J].化工进展,2017,36(7):2639-2645.
    [17]李学艳,高乃云,沈吉敏,等.O3/H2O2降解水中致嗅物质2-MIB的效能与机理[J].环境科学学报,2009,29(2):344-352.