UV-Fenton技术在热电厂废水中的应用研究
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摘要
以七水硫酸亚铁、双氧水为原料在热电厂废水中合成了fenton试剂,幵研究了fenton试剂在热电厂废水中的应用工艺条件,以解决电厂废水中COD含量高,处理难度大问题,在最佳fenton处理工艺基础上与UV技术组合使用,进一步提升COD去除率。探索了原料摩尔比、体系浓度、反应时间、溶液pH对废水中COD去除率的影响。实验结果表明:双氧水、硫酸亚铁摩尔比为6:1、体系中Fe2+浓度为15 mg/L、反应时间为4 h、溶液pH为6时,得到的fenton试剂具有最高催化氧化性能,在此条件下废水中COD去除率为93.7%,采用UV-fenton组合技术进一步处理,考察了紫外波长为254、365 nm条件下,废水中COD去除率变化,结果显示,当紫外波长为254 nm时废水去除率达到98.6%。
Using FeSO4·7 H2 O and H2 O2 as raw materials, Fenton reagent was synthesized, and the Fenton reagent application conditions in treatment process of thermal power plant wastewater were studied in order to solve the problem of high COD in the wastewater. The best Fenton process was combined with UV technology to further enhance the removal rate of COD. Effect of raw material molar ratio, system concentration, reaction time and system solution pH on COD removal rate of wastewater was investigated. The experimental results showed that when the mole ratio of hydrogen peroxide to ferrous sulfate was 6:1, Fe2 + concentration was 15 mg/L, the reaction time was 4 h,the solution pH was 6, the catalytic oxidation property of Fenton reagent was the best, the highest removal rate of COD in wastewater was 93.7%. During further treatment of wastewater by UV-Fenton combination technology, the removal rate of COD in wastewater under the ultraviolet wavelength of 254 and 365 nm was investigated. The results showed that when the ultraviolet wavelength was 254 nm, the COD removal rate of waste water reached 98.6%.
Using FeSO4·7 H2 O and H2 O2 as raw materials, Fenton reagent was synthesized, and the Fenton reagent application conditions in treatment process of thermal power plant wastewater were studied in order to solve the problem of high COD in the wastewater. The best Fenton process was combined with UV technology to further enhance the removal rate of COD. Effect of raw material molar ratio, system concentration, reaction time and system solution pH on COD removal rate of wastewater was investigated. The experimental results showed that when the mole ratio of hydrogen peroxide to ferrous sulfate was 6:1, Fe2 + concentration was 15 mg/L, the reaction time was 4 h,the solution pH was 6, the catalytic oxidation property of Fenton reagent was the best, the highest removal rate of COD in wastewater was 93.7%. During further treatment of wastewater by UV-Fenton combination technology, the removal rate of COD in wastewater under the ultraviolet wavelength of 254 and 365 nm was investigated. The results showed that when the ultraviolet wavelength was 254 nm, the COD removal rate of waste water reached 98.6%.
引文
[1]栾晓东,符东,胡萍.电厂脱硫废水系统COD指标测试方法探讨[J].仪器仪表标准化与计量,2013(4):43-45.
[2]吕倩,徐奕,王磊,等.热电厂化学中和池废水COD测定方法的实验探究[J].全面腐蚀控制,2016,30(4):27-28.
[3]李淼.火电厂废水中化学耗氧量(COD)测试方法改进[J].河北电力技术,1992(6):27-30.
[4]钱感,关洪银.燃煤电厂脱硫废水综合处理工艺[J].水处理技术,2017(2):136-138.
[5]张宇峰,滕洁,张雪英,等.印染废水处理技术的研究进展[J].工业水处理,2003,23(4):23-27.
[6]陈美玱.含酚废水处理技术的研究现状及収展趋势[J].化学工程师,2003(2):48-51.
[7]买文宁.生物化工废水处理技术及工程实例[M].北京:化学工业出版社,2008.
[8]秦麟源.废水生物处理[M].上海:同济大学出版社,1989.
[9]胡纪萃.废水厌氧生物处理理论与技术[M].北京:中国建筑工业出版社,2003.
[10]陈波,全学军,程治良,等.电化学氧化法处理垃圾焚烧収电厂沥滤液生化出水[J].化工学报,2013,64(4):1396-1402.
[11]任南琪,周显娇,郭婉茜,等.染料废水处理技术研究进展[J].化工学报,2013,64(1):84-94.
[12]孙晓君,冯玉杰,蔡伟民,等.废水中难降解有机物的高级氧化技术[J].化工环保,2001,21(5):264-269.
[13]钟理,陈建军.高级氧化处理有机污水技术进展[J].工业水处理,2002,22(1):1-4.
[14]刘海洋,徐小生.火电厂脱硫废水有机物去除及软化处理[J].工业设计,2017(6):154-155.
[15]唐琼,张新申,李正山.油田含油废水处理絮凝剂的研究与应用[J].化学研究与应用,2002,14(6):641-644.
[16]袁毅桦,赖兴华,陈纯馨,等.壳聚糖对印染废水的絮凝作用和脱色效果[J].应用化学,2000,17(2):217-218.
[17]陈志莉,叶茂平.含油污水处理絮凝剂的选用研究[J].环境保护,2002(1):20-21.
[18]韩旭.火电厂烟气脱硫废水的处理研究[J].城市建设理论研究:电子版,2011(24).
[19]王春敏,吴少艳,王维军.Fenton试剂处理苯酚废水的研究[J].当代化工,2006,35(1):26-28.
[20]陈传好,谢波,任源,等.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.
[21]张国卿,王罗春,徐高田,等.Fenton试剂在处理难降解有机废水中的应用[J].工业安全与环保,2004,30(3):17-19.
[22]程丼华,黄君礼,王丼,等.Fenton试剂的特性及其在废水处理中的应用[J].化学工程师,2001(3):24-25.
[23]Neyens E,Baeyens J.A review of classic Fenton's peroxidation as an advanced oxidation technique[J].Journal of Hazardous Materials,2003,98(1):33-50.
[24]Pera-Titus M,Garc??A-Molina V,Ba?os M A,et al.Degradation of chlorophenols by means of advanced oxidation processes:a general review[J].Applied Catalysis B Environmental,2004,47(4):219-256.
[25]Lucas M S,Peres J A.Degradation of Reactive Black,5 by Fenton/UV-C and ferrioxalate/H2O 2/solar light processes[J].Dyes&Pigments,2007,74(3):622-629.
[26]雷彩虹,赵素萍,杨英.不同紫外光条件下UV/Fenton降解活性艳蓝X-BR[J].当代化工,2015,44(12):2766-2768.
[27]张乃东,黄君礼,郑威.强化UV/Fenton法降解水中苯酚的研究[J].环境工程学报,2002,3(2):20-22.
[28]Schrank S G,JoséH J,Moreira R F,et al.Applicability of Fenton and H2O2/UV reactions in the treatment of tannery wastewaters.[J].Chemosphere,2005,60(5):644-655.
[29]朱洪涛.UV-Fenton催化氧化处理印染废水的实验研究[J].工业水处理,2006,26(3):53-55.
[30]乔瑞平,杨旭,龙可明,等.UV-Fenton法处理草浆造纸废水的研究[J].工业水处理,2007,27(10):31-33.
[31]雷彩虹,赵素萍,杨英.不同紫外光条件下UV/Fenton降解活性艳蓝X-BR[J].当代化工,2015,44(12):2766-2768.
[2]吕倩,徐奕,王磊,等.热电厂化学中和池废水COD测定方法的实验探究[J].全面腐蚀控制,2016,30(4):27-28.
[3]李淼.火电厂废水中化学耗氧量(COD)测试方法改进[J].河北电力技术,1992(6):27-30.
[4]钱感,关洪银.燃煤电厂脱硫废水综合处理工艺[J].水处理技术,2017(2):136-138.
[5]张宇峰,滕洁,张雪英,等.印染废水处理技术的研究进展[J].工业水处理,2003,23(4):23-27.
[6]陈美玱.含酚废水处理技术的研究现状及収展趋势[J].化学工程师,2003(2):48-51.
[7]买文宁.生物化工废水处理技术及工程实例[M].北京:化学工业出版社,2008.
[8]秦麟源.废水生物处理[M].上海:同济大学出版社,1989.
[9]胡纪萃.废水厌氧生物处理理论与技术[M].北京:中国建筑工业出版社,2003.
[10]陈波,全学军,程治良,等.电化学氧化法处理垃圾焚烧収电厂沥滤液生化出水[J].化工学报,2013,64(4):1396-1402.
[11]任南琪,周显娇,郭婉茜,等.染料废水处理技术研究进展[J].化工学报,2013,64(1):84-94.
[12]孙晓君,冯玉杰,蔡伟民,等.废水中难降解有机物的高级氧化技术[J].化工环保,2001,21(5):264-269.
[13]钟理,陈建军.高级氧化处理有机污水技术进展[J].工业水处理,2002,22(1):1-4.
[14]刘海洋,徐小生.火电厂脱硫废水有机物去除及软化处理[J].工业设计,2017(6):154-155.
[15]唐琼,张新申,李正山.油田含油废水处理絮凝剂的研究与应用[J].化学研究与应用,2002,14(6):641-644.
[16]袁毅桦,赖兴华,陈纯馨,等.壳聚糖对印染废水的絮凝作用和脱色效果[J].应用化学,2000,17(2):217-218.
[17]陈志莉,叶茂平.含油污水处理絮凝剂的选用研究[J].环境保护,2002(1):20-21.
[18]韩旭.火电厂烟气脱硫废水的处理研究[J].城市建设理论研究:电子版,2011(24).
[19]王春敏,吴少艳,王维军.Fenton试剂处理苯酚废水的研究[J].当代化工,2006,35(1):26-28.
[20]陈传好,谢波,任源,等.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.
[21]张国卿,王罗春,徐高田,等.Fenton试剂在处理难降解有机废水中的应用[J].工业安全与环保,2004,30(3):17-19.
[22]程丼华,黄君礼,王丼,等.Fenton试剂的特性及其在废水处理中的应用[J].化学工程师,2001(3):24-25.
[23]Neyens E,Baeyens J.A review of classic Fenton's peroxidation as an advanced oxidation technique[J].Journal of Hazardous Materials,2003,98(1):33-50.
[24]Pera-Titus M,Garc??A-Molina V,Ba?os M A,et al.Degradation of chlorophenols by means of advanced oxidation processes:a general review[J].Applied Catalysis B Environmental,2004,47(4):219-256.
[25]Lucas M S,Peres J A.Degradation of Reactive Black,5 by Fenton/UV-C and ferrioxalate/H2O 2/solar light processes[J].Dyes&Pigments,2007,74(3):622-629.
[26]雷彩虹,赵素萍,杨英.不同紫外光条件下UV/Fenton降解活性艳蓝X-BR[J].当代化工,2015,44(12):2766-2768.
[27]张乃东,黄君礼,郑威.强化UV/Fenton法降解水中苯酚的研究[J].环境工程学报,2002,3(2):20-22.
[28]Schrank S G,JoséH J,Moreira R F,et al.Applicability of Fenton and H2O2/UV reactions in the treatment of tannery wastewaters.[J].Chemosphere,2005,60(5):644-655.
[29]朱洪涛.UV-Fenton催化氧化处理印染废水的实验研究[J].工业水处理,2006,26(3):53-55.
[30]乔瑞平,杨旭,龙可明,等.UV-Fenton法处理草浆造纸废水的研究[J].工业水处理,2007,27(10):31-33.
[31]雷彩虹,赵素萍,杨英.不同紫外光条件下UV/Fenton降解活性艳蓝X-BR[J].当代化工,2015,44(12):2766-2768.
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