全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

微气泡曝气O3/H2O2处理RO浓水的效能及影响因素

Keywords: O3/H2O2,微气泡,RO浓水,效能,影响因素

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用O3/H2O2高级氧化工艺处理炼油厂反渗透(RO)浓水,用溶气泵加压溶气并产生微气泡强化传质,确定装置运行条件,考察气体中臭氧浓度、H2O2/O3初始摩尔比、pH和温度对O3/H2O2处理RO浓水效果的影响,并对RO浓水处理效能进行研究。结果表明,随着气体中臭氧浓度的增加,COD的去除率基本呈线性增加;加入适当量H2O2能提高臭氧氧化RO浓水的效果,H2O2/O3初始摩尔比在0~0.8范围内,COD的去除率先增加后下降,H2O2/O3初始摩尔比为0.5时COD去除率最大;pH从6.84增加到9.01,COD去除率逐渐增大,pH为10.03时COD去除率反而降低;在14~28℃范围内,温度低时,升高温度COD去除率增加较大,温度较高时,升高温度对COD去除率的影响较小。为考察该工艺的稳定性,在H2O2/O3初始摩尔比为0.5、溶液pH为8~9、臭氧浓度为80~100mg/L、温度为10~28℃条件下,对COD为90~140mg/L的RO浓水氧化处理4~10h,出水COD维持在39.9~49.9mg/L,达到《城镇污水处理厂污染物排放标准(GB18918-2002)》中的一级A标准;去除1gCOD消耗O31.4~3.3g,消耗O3与H2O2的总氧量为2.2~4.4g。

References

[1]  Rice R. G., Netzer A. Handbook of Ozone Technology and Applications. Ann Arbor: Ann Arbor Science Publishers, 1982
[2]  李文文, 刘朋朋, 张华, 等. Ti(Ⅳ)催化H2O2/O3降解乙酸. 化工学报, 2010, 61(7): 1790-1795 Li W. W., Liu P. P., Zhang H., et al. Degradation of acetic acid by Ti(Ⅳ) catalyzed H2O2/O3. Journal of Chemical Industry and Engineering, 2010, 61(7): 1790-1795(in Chinese)
[3]  Glaze W. H., Kang J. W. Advanced oxidation process description of a kinetic model for the oxidation of hazardous materials in aqueous media with ozone and hydrogen peroxide in semibatch reactor. Industrial & Engineering Chemistry Research, 1989, 28(11): 1573-1580
[4]  Kuo C. H., Zhong L., Zappi M. E., et al. Kinetics and mechanism of the reaction between ozone and hydrogen peroxide in aqueous solutions. The Canadian Journal of Chemical Engineering, 1999, 77(3): 473-482
[5]  马军, 石枫华. O3/H2O2氧化工艺去除水中硝基苯的研究. 环境科学, 2002, 23(5):67-71 Ma J., Shi F. H. Study on removal of nitrobenzene in water by O3/H2O2. Environmental Science, 2002, 23(5):67-71 (in Chinese)
[6]  Brunet R., Bourbigot M. M., Dore M. Oxidation of organic compounds through the combination ozone-hydrogen peroxide. Journal of the International Ozone Association, 1984, 6(3): 163-183
[7]  沈吉敏, 陈忠林, 李学艳, 等. O3/H2O2去除水中硝基苯效果与机理. 环境科学, 2006, 27(9): 1791-1797 Shen J. M., Chen Z. L., Li X. Y., et al. Effect and mechanism of degradation of nitrobenzene in aqueous solution by O3/H2O2. Environmental Science, 2006, 27(9): 1791-1797 (in Chinese)
[8]  Elovitz M. S., Gunten U. V., Kaiser H. P. Hydroxyl radical/ozone ratios during ozonation processes.Ⅱ. The effect of temperature, pH, alkalinity, and DOM properties. Journal of the International Ozone Association, 2000, 22(2): 123-150
[9]  Zhao L., Ma J., Sun Z. Z., et al. Influencing mechanism of temperature on the degradation of nitrobenzene in aqueous solution by ceramic honeycomb catalytic ozonation. Journal of Hazardous Materials, 2009, 167(1): 1119-1125
[10]  杨岸明, 常江, 甘一萍, 等. 臭氧氧化二级出水有机物可生化性研究. 环境科学, 2010, 31(2): 363-367 Yang A. M., Chang J., Gan Y. P., et al. Research on the organic biodegradability of secondary effluent treated by ozonation. Environmental Science, 2010, 31(2): 363-367 (in Chinese)
[11]  陈爱民, 聂明, 李光海, 等. 污水回用中双膜法的保护运行. 工业水处理, 2007, 27(5): 86-87 Chen A. M., Nie M., Li G. H., et al. Running protection of two-membrane process in wastewater reuse. Industrial Water Treatment, 2007, 27(5): 86-87 (in Chinese)
[12]  邓旭亮, 荣丽丽, 张春燕, 等. 膜滤浓缩液处理技术研究进展. 工业水处理, 2011, 31(6): 10-13 Deng X. L., Rong L. L., Zhang C. Y., et al. Research progress in the treatment of membrane filtration concentrate.Industrial Water Treatment, 2011, 31(6): 10-13 (in Chinese)
[13]  高峰, 李本高, 桑军强, 等. 一种反渗透浓水的处理方法: 中国, 101723485 B. 2011-12-21
[14]  龚小芝, 栾金义, 刘正, 等. 一种反渗透浓水的处理方法: 中国, 102040312 A. 2011-05-04
[15]  李亮, 阮晓磊, 滕厚开, 等. 一种臭氧催化氧化处理炼化废水反渗透浓水的工艺方法: 中国, 102070238 A. 2011-05-25
[16]  杨力, 聂玉伦, 胡春, 等. MnOx/介孔γ-Al2O3催化臭氧化降解水中安替比林的研究. 环境工程学报, 2011, 5(11): 2542-2546 Yang L., Nie Y. L., Hu C., et al. Catalytic ozonation of phenazone on MnOx/mesoporous γ-Al2O3 in water. Chinese Journal of Environmental Engineering, 2011, 5(11): 2542-2546 (in Chinese)
[17]  Wen G., Ma J., Liu Z. Q., et al. Ozonation kinetics for the degradation of phthalate esters in water and the reduction of toxicity in the process of O3/H2O2. Journal of Hazardous Materials, 2011, 195: 371-377
[18]  沈吉敏. 水中硝基(氯)苯及多羟基单宁酸的O3/H2O2降解效果与机理. 哈尔滨: 哈尔滨工业大学博士学位论文, 2007: 7-9 Shen J. M. Effect and mechanism of degradation of nitro(chloro)benzene and tannin acid in aqueous solution by O3/H2O2. Harbin:Doctor Dissertation of Harbin Institute of Technology, 2007: 7-9(in Chinese)
[19]  Chu L. B., Xing X. H., Yu. A. F., et al. Enhanced treatment of practical textile wastewater by microbubble ozonation. Process Safety and Environmental Protection, 2008, 86(5): 389-393
[20]  Agarwal A., Ng W. J., Liu Y. Principle and applications of microbubble and nanobubble technology for water treatment. Chemosphere, 2011, 84(9): 1175-1180
[21]  李晓伟, 林诚, 蒋友华, 等. 微孔分布器对光催化臭氧氧化反应器传质的影响. 环境工程学报, 2011, 5(5): 1101-1105 Li X. W., Lin C., Jiang Y. H., et al. Effect of titanium porous plates on mass transfer performance of photocatalytic ozonation reactors. Chinese Journal of Environmental Engineering, 2011, 5(5): 1101-1105(in Chinese)
[22]  Chu L. B., Xing X. H., Yu A. F., et al. Enhanced ozonation of simulated dyestuff wastewater by microbubbles. Chemosphere, 2007, 68(10): 1854-1860
[23]  范欣, 何利民, 王鑫, 等. 多相流泵溶气气浮中气泡粒径分布的实验研究. 工程热物理学报, 2010, 31(7): 1159-1162 Fan X., He L. M., Wang X., et al. Experimental study of bubble size distribution of multiphase-pump dissolved air flotation. Journal of Engineering Thermophysics, 2010, 31(7): 1159-1162(in Chinese)
[24]  莫汉宏, 安凤春, 钱建国, 等. 九江炼油厂废水中有机污染物的表征. 环境科学丛刊, 1990, 11(1): 15-33 Mo H. H., An F. C., Qian J. G., et al. Characterization of organic pollutants in Jiujiang refinery wastewater. Comments on Environmental Studies in China, 1990, 11(1): 15-33 (in Chinese)
[25]  Wang S. T., Ma J., Liu B. C., et al. Degradation characteristics of secondary effluent of domestic wastewater by combined process of ozonation and biofiltration. Journal of Hazardous Materials, 2008, 150(1): 109-114

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133