活性炭对苯酚的吸附及再生的研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
使用新鲜的颗粒活性炭吸附苯酚,并采用Fenton氧化、铁炭微电解以及Fenton-微电解耦合工艺再生吸附饱和的活性炭。通过吸附效率试验、吸附等温线试验分析新鲜炭和再生炭的吸附性能和热力学特征。使用解吸附的Elovich、一级动力学、二级动力学方程表征活性炭的再生过程,研究各种活性炭再生手段的影响因素、再生过程的反应特征。
     试验结果表明:新鲜活性炭具有很好的苯酚吸附性能,吸附量为9.60 mg·g~(-1),吸附是自发的放热过程,吸附量随着温度的升高而降低,吸附活化能为31.42KJ·mol~(-1),属于化学吸附。使用Fenton、微电解和Fenton-微电解耦合工艺再生的活性炭,苯酚吸附量分别为7.97 mg·g~(-1)、4.56 mg·g~(-1)和8.27 mg·g~(-1);三种工艺对活性炭的苯酚吸附量再生效率分别为82.96%、47.49%和86.13%。再生炭的吸附等温线试验表明,Fenton-微电解耦合和Fenton氧化工艺再生炭的苯酚吸附性能较好,吸附量和热力学特征比较接近新鲜活性炭,微电解再生炭的吸附性质有所改变。对各再生工艺的动力学拟合结果表明,Fenton再生主要符合解吸附的二级动力学模型,是由于苯酚解吸附到水中而被Fenton试剂氧化。微电解再生过程较复杂,符合Elovich模型。Fenton-微电解耦合再生法的Elovich模型和二级动力学模型相关性较好,说明Fenton-微电解耦合再生活性炭是一种较复杂的过程,可能涉及到微电解、Fenton反应、苯酚解吸附。
Activated carbon which was exhausted by phenol was regenerated by Fenton oxidation, iron-carbon micro-electrolysis and micro-electrolysis coupled with Fenton process. Adsorption and thermodynamic properties of fresh and regenerated carbon were analyzed by adsorption efficiency test and adsorption isotherm test, respectively. Process of regeneration was characterised by Elovich, first order kinetics and second order kinetics equation to study the affecting factors and character of regenerating reaction.
     The results showed that fresh activated carbon had a good adsorption capacity for phenol. The adsorbance of fresh activated carbon was 9.60 mg·g~(-1) and the adsorption was a spontaneous exothermic process, moreover,the adsorbance decreasd with temperature increasing.The activation energy of adsorption ,which have been a chemisorption process,was 31.42KJ·mol~(-1).The adsorption capacity for phenol of activated carbon which was regenerated in the ways of Fenton, micro-electrolysis and micro-electrolysis coupled with Fenton oxidation was 7.97mg·g~(-1), 4.56 mg·g~(-1) and 8.27mg·g~(-1), respectively.Regeneration efficiency of the three kinds of process was 82.96 %, 47.49% and 86.13%.Adsorption isotherm test of regenerated carbon displayed that carbon regenerated by micro-electrolysis coupled with Fenton oxidation and Fenton oxidation process have a good adsorption capacity for phenol, whose adsorption and thermodynamic properties were closer to fresh activated carbon, and the adsorption properties of micro-electrolytic regenerative carbons had changed to some extent. Modeling results of kinetics of the regeneration process revealed that Fenton regeneration was mainly consistent with the second orde kinetics equation of desorption,because phenol was desorbed into water firstly,and then oxidated by Fenton reagent.Regeneration processes of micro-electrolysis were very complex and in accordance with Elovich model. Elovich model and second order kinetic model of regenerating process using micro-electrolysis coupled with Fenton oxidation both possessed good correlation, indicating that the process of regenerating activated carbon using micro-electrolysis coupled with Fenton oxidation was very complex, involving electrolysis, Fenton reaction and phenol desorption.
引文
[1]蒋文举,金燕,朱晓帆,等.活性炭材料的活化与改性[J].环境污染治理技术与设备, 2002, 3(12):25-27
    [2]Marcilla A.Asenio M,陈仁辉.碳化升温速度对活性炭的活化度和空隙发展的影响[J].新型炭材料,1995,(1):49-50,30
    [3]Beker U,Ganbold B,Dertli H,et al.Adsorption of phenol by activated carbon:influence of activation methods and solution pH[J]. Energy Conversion and Management,2010, 51(2): 235-240
    [4]赵瑞东,刘凤玲,郑寿荣,等.CO2高温活化活性炭材料对苯酚的吸附行为研究[J].环境污染与防治,2010, (10):33-36
    [5]Taman H,Okazaki M.Influence of acidic surface oxides of activated carbon on gas adsorption characteristics[J]. Carbon,1996,34(6):741-746
    [6]Vinke P,Van Verbee.M,Voskamp A F,et al. Modification of the surfaces of gas-activated carbon and a chemically activated carbon with HNO3[J]. Carbon,1994,32(4):675-686
    [7]刘军利,古可隆.高温处理对活性炭孔隙结构的影响[J].林产化学与工业,1999,19(3):37-40
    [8]Anoop K A,Anirudhan T S.Uptake of heavy metals in batch systems by sulfurized steam activated carbon prepared from sugarcane bagasse pith[J]. Industrial and Engineering Chemical Research,2002,41(20):5085-5093
    [9]Gang pan,Peter S.Liss.Metastable-Equilibrium Adsorption TheoryⅠ.Theoretical[J]. Jourrnal of Colloid and Interface Science,1998,201(1)71-76
    [10]单绍复.活性炭的吸附原理及在环境工程中的应用[J].污染防治技术,1991,4(4):11-15
    [11]Haiyun Zhou,GangLi,Xiaoxing Wang,et al. Preparation of a kind of mesoporous carbon and its performance in adsorptive desulfurization[J]. Journal of Natural Gas Chemistry,2009,18(3): 365-368
    [12]陶燕,米生权,王式功,等.活性炭吸附-超临界CO2解吸附四氯乙烯的特性研究[J].环境污染与防治,2009,30(9):1-5,30
    [13]王挺,蒋新.SiO2表面吸附层中钛酸丁酯的反应过程[J].无机化学学报,2009, 25(10):1805-1811
    [14]崔凯,李宝元,李兴斯.非饱和土中镉离子迁移规律的实验研究[J].水动力学研究与进展:A辑,2003,18(6):725-731
    [15]唐文华,刘少友,冯庆革,等.金属掺杂二氧化钛介孔材料对葛根素的吸附行为[J].过程工程学报,2010,10(4):685-690
    [16]刘懿颉,甘义群,王焰新铁,等.矿渣去除水中砷的实验研究[J].环境科学与技术,2010,33(3):166-170
    [17]Lahaye Jacques.The chemistry of carbon surfaces[J]. Fuel,1998,77(6):543-547
    [18]张卫军,卢丽敏,万其中,等.基于纳米氧化铝/壳聚糖无机-有机复合纳米材料的辣根过氧化酶生物传感器[J].分析测试学报,2010,29(4):353-358
    [19]丁志斌,王秀春,程宝义,等.活性炭吸附化学战剂-沙林染毒水的实验研究[J].环境污染治理技术与设备,2002,3(12):43-45
    [20]刘军利.活性炭标准国际化趋同发展趋势[J].林产化工通讯,2004,38(5):30-35
    [21]岳宗豪,郑经堂,曲降伟,等.活性炭再生技术研究进展[J].应用化工,2009,38(11):1667-1670
    [22]林冠烽,牟大庆,程捷,等.活性炭再生技术研究进展[J].林业科学,2008,44(2):151-154
    [23]Alvarez P M,Beltran F J,Gomez-Serrano V,et al.Comparison between themal and ozone regenerations of spent activated carbon exhausted with phenol[J]. Water Research,38(8): 2155-2165
    [24]Ashvini C,Andrew O. Evaluation of support matrices for immobilization of anaerobic consortia for efficient[J]. Biochemical and Biophysical Research Communications,2005,327(3):884-893
    [25]杨霜,江洁,张雁秋.湿式氧化技术的应用研究进展[J].环境科学与管理,2005,30,(4): 88-90,98
    [26]李健秀,姜泰熙,金承哲.溶剂萃取法从活性炭滤泥中回收增塑剂[J].环境科学,1991,12(3): 46-49
    [27]Zhang H P.Regeneration of exhausted activated carbon by electrochemical method[J]. Chem- ical Engineering Journal,85(1):81-85
    [28]阮新潮,曾庆福,施月雪.微波再生活性炭处理苯酚废水的实验研究[J].应用化工,2010,39(7): 952-954
    [29]郑文轩,吴胜举.水处理活性炭的超声波再生技术[J].水处理技术,2008,34(8):79-81
    [30]Kazuyuki C,Kanji O,Takao O,et al.Supercritical CO2 regeneration of activated carbon loaded with organic adsorbates[J]. Woi Sci Tech,35(7):261-268
    [31]童少平,魏红,刘维屏.臭氧氧化法再生活性炭的研究[J].工业水处理,2005,25(2):31-33
    [32]刘守新,陈广胜,孙承林.活性炭的光催化再生机理[J].环境化学,2005,24(4):405-408
    [33]应萍君,唐赟,胡立军.一起苯酚污染水质事件的调查[J].现代预防医学,2006,33(4): 594-595
    [34]高会,张硕慧,熊德琪.苯酚、苯胺对两种海洋生物的急性毒性研究[J].海洋环境科学,2006, 25(A01):33-36
    [35]吴笛,张国栋,孙立伟.苯酚和邻甲酚的遗传毒理学研究[J].南京大学学报(自然科学),2001, 37(6):719-723
    [36]王红娟,奚红霞,夏启斌,等.含酚废水处理技术的现状与开发前景[J].工业水处理,2002,22(6):6-9
    [37]Brasquet C,Subrenal E.Removal of phenolic compounds from aqueous solution by Activated carbon cloths[ J]. Water Science Technology,1999,39(10-11):201-205
    [38]Christoskova ST,Stoyanova M. Degradation of phenolic waste waters over Ni-Oxide[J]. Water Research,2001,35(8):2073-2077
    [39]王永广,杨剑锋.微电解技术在工业废水处理中的研究与应用[J].环境污染治理技术与设备,2002,3(4):70-73
    [40]任拥政,章北平,张晓昱,等.铁碳微电解对造纸黑液的脱色处理[J].水处理技术,2006,32 (4):68- 70
    [41]杨玉峰,铁炭微电解组合工艺预处理高浓度难降解有机废水的研究[D].浙江工业大学,2000:13
    [42]李杰,程爱华,孙莉婷,等.铁炭耦合Fenton试剂-混凝沉淀法预处理DMAC废水[J].环境科学研究,2010,23(7):902-907
    [43]Bance N,Chartrand M,Keech P. Electrochemical treatment of acidic aqueous ferrous sulfate and cooper sulfate as models for acid mine drainage[J]. Water Research,2001,35(18): 4410-4416
    [44]Bishop D F,Dtern G,Fleischmann M.Hydrogen peroxide catalytic oxidation of refectory organics in municipal waste water[J]. I &EC process Design and development,1968,7(1): 196-201
    [45]田依林.Fenton试剂氧化法在工业废水处理中的应用基础研究[D].河南大学,2000:13
    [46]张新宇.Fenton试剂降解中年期垃圾渗滤液的条件及动力学研究[J].工业安全与环保,2009,35(7):11-12
    [47]Bestamin Ozkaya. Adsorption and desorption of phenol on activated carbon and a comparison of isotherm models[J]. Journal of Hazardous Materials,2006,129(1-3):158–163
    [48]杨柳燕,肖琳,周治,等.pH值对有机蒙脱土吸附苯酚的影响[J].环境化学,2004, 23(2):183-187
    [49]杨蓉,赵芳,苏燕艳.果壳活性炭对废水中苯酚的吸附特性[J].工业用水与废水,2010, 41(5):74-77
    [50]Oualid Hamdaoui,Fethi Saoudi,Mahdi Chiha,et al.Sortion of malachite green by a novel sorbent,dead leaves of plane tree:Equilibrium and kinetic modeling[J]. Chemical Engineering Journal,2008,143(1-3):73-85
    [51]Emad N.El Qada, Stephen J.Allen, Gavin M·Walker.Adsorption of Methylene Blue onto activated carbon produced from steam activated bituminous coal: A study of equilibrium adsorption isotherm.[J]. Chemical Engineering Journal,2006, 124(1-3):103-110
    [52]冯全芬,李浙华,刘芬芬.活性炭吸附处理黄磷化工渗滤液研究[J].环境科学与技术,2008,31(8):99-102
    [53]丁真真.Fenton试剂氧化苯酚废水和橡胶工业废水的研究[D].西北师范大学,2007:15
    [54]班福忱,李承斌,程琳,等.Fenton试剂法处理苯酚废水的研究[J].化工技术与开发,2009,38(4):47-49
    [55]Huanjung Fan,Shiuhtsuen Huang,Wenhsin Chung,等.Degradation pathways of crystal violet by Fenton and Fenton-like systems:Condition optimization and intermediate separation and identification[J]. Journal of Hazardous Materials,2009,171 (1-3):1032-1044
    [56]Miguel Rios-Enriquez a,Nabil Shahin, Carmen Duran-de-Bazrua,et al.Optimization of the heterogeneous Fenton-oxidation of the model pollutant 2,4-xylidine using the optimal experimental design methodology[J]. Solar Energy,2004.77 (5):495-501
    [57]Ewa Lipczynska-Kochany ,Jan Kochany b.Effect of humic substances on the Fenton treatment of wastewater at acidic and neutral pH[J]. Chemosphere,2008,73 (5):745-750
    [58]欧阳秀欢,陈国华.Fenton试剂处理褐藻胶生产废水[J].水处理技术,2005,31(4):56-59
    [59]徐莉,贾庆,侯凯湖.MDEA-TETA溶液中CO2的解吸动力学研究[J]. 2009, 9(4),298-301
    [60]LuXiaonan,LuYunfu.Kinetic Equations of potassium desorption and the application of equation constants[J]. Pedosphere,1995,5(4):371-379
    [61]洪飞宇,李德生,韩丹,等.曝气/铁炭微电解预处理制膜废水试验研究[J].工业水处理,2009, 29(4):42-45
    [62]余宗学.微电解处理间二硝基苯生产废水的研究[J].环境科学与技术,2004,27(3):68-69
    [63]张文妍,田玉兰,何恒梅,等.铁炭微电解法预处理中纤板热磨废水的研究[J].南京林业大学学报:自然科学版,2010,34(2):69-72
    [64]吴云,张宏伟,刘迎春,等.铁炭微电解/Fenton预处理对叔丁酚甲醛树脂合成废水[J].中国给水排水,2009,25(23):88-91
    [65]刘娟娟.微电解-Fenton组合工艺处理亚麻废水的试验研究[D].哈尔滨工业大学,2007:17
    [66]陈传好,谢波.Fenton试剂处理废水中各影响因子的作用机制[J].环境科学,2000, 21(3):93-96

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700