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...

KMnO4缓释剂的释放性能及其在垃圾渗滤液处理中的应用

Keywords: 高锰酸钾,负载量,绝对回收率,释放性能,垃圾渗滤液

Full-Text   Cite this paper   Add to My Lib

Abstract:

为延长KMnO4在地下水原位修复中的作用时间,通过改变KMnO4与石蜡的分散方式以及KMnO4与石蜡的质量比(P/W),对KMnO4缓释剂的制备过程进行了优化。采用超声与搅拌联用(搅拌速度150r/min)的分散方式更有利于KMnO4的均匀分布,随着P/W的升高,KMnO4负载量逐渐增大而绝对回收率逐渐减小。静态实验分别研究了缓释剂在8℃、不同pH与DO浓度下的释放性能。结果表明,在8℃环境下,缓释剂仍具有释放性能;缓释剂受pH影响较大而受DO浓度影响较小。利用缓释剂降解垃圾渗滤液中的COD以及对沉淀物进行定量分析。结果表明,缓释剂对COD去除率可高达57.1%,而沉淀量最少仅为投加纯KMnO4的8.5%。

References

[1]  Lee E. S., Schwartz F. W. Characteristics and applications of controlled-released KMnO4 for groundwater remediation. Chemosphere, 2007,66(11):2058-2066
[2]  Lee E. S., Seol Y., Fang Y. C., et al. Destruction efficiencies and dynamics of reaction fronts associated with the permanganate oxidation of trichloroethylene. Environmental Science and Technology, 2003,37(11):2540-2546
[3]  Schroth M. H., Oostrom M., Wietsma T. W., et al. In situ oxidation of trichloroethene by permanganate: Effects on porous medium hydraulic properties. Journal of Contaminant Hydrology, 2001,50(1-2):79-98
[4]  Li X. D., Schwartz F. W. DNAPL remediation with in situ chemical oxidation using potassium permanganate: Part I. Mineralogy of Mn oxide and its dissolution in organic acids. Journal of Contaminant Hydrology, 2004,68(1-2):39-53
[5]  陈艳美,李小婷,苑宝玲. 高锰酸钾缓释剂的制备及其性能研究. 环境工程学报, 2010,4(5):1052-1056 Chen Y. M., Li X. T., Yuan B. L. Preparation and characteristics of controlled release potassium permanganate. Chinese Journal of Environmental Engineering, 2010,4(5):1052-1056(in Chinese)
[6]  Yuan B. L., Li F., Chen Y. M., et al. Laboratory-scale column study for remediation of TCE-contaminated aquifer using three-section controlled-release potassium permanganate (CRP) barriers. Journal of Environmental Science, 2013, 25(5):971-977
[7]  Lee E. S., Woo N. C., Schwartz F. W., et al. Characterization of controlled-release KMnO4 (CRP) barrier system for groundwater remediation: A pilot-scale flow-tank study. Chemosphere, 2008,71(5):902-910
[8]  He P. J., Shao L. M., Guo H. D., et al. Nitrogen removal from recycled landfill leachate by ex situ nitrification and in situ denitrification. Waste Management, 2006,26(8):838-845
[9]  Silva A. C., Dezotti M., Sant\'Anna Jr. G. L. Treatment and detoxication of a sanitary landfill leachate. Chemosphere, 2004,55(2):207-214
[10]  Lopez A., Pagano M., Volpe A., et al. Fenton\'s pre-treatment of mature landfill leachate. Chemosphere, 2004,54(7):1005-1010
[11]  田璐,杨琦,尚海涛. 高锰酸钾降解地下水中PCE的研究. 环境工程学报,2009,3(8):1356-1359 Tian L.,Yang Q., Shang H. T. Oxidation of terachloroethylene in groundwater with permanganate. Chinese Journal of Environmental Engineering, 2009,3(8):1356-1359(in Chinese)
[12]  Seol Y., Schwartz F. W., Zhang H. A review of in situ chemical oxidation and heterogeneity. Environmental & Engineering Geoscience, 2002,9(1):37-50
[13]  Phillips J. B., Hindawi M., Phillips A., et al. Applying in situ chemical oxidation several oxidizers provide an effective first step in groundwater and soil remediation. Pollution Engineering, 2000,32(2):40-42
[14]  Yan Y. E., Schwartz F. W. Kinetics and mechanisms for TCE oxidation by permanganate. Environmental Science & Technology, 2000,34(12):2535-2541
[15]  Crimi M., Quickel M., Ko S. Enhanced permanganate in situ chemical oxidation through MnO2 particle stabilization: Evaluation in 1-D transport systems. Journal of Contaminant Hydrology, 2009,105(1-2):69-79
[16]  Heiderscheidt J. L., Siegrist R. L., Illangasekare H. Intermediate-scale 2D experimental investigation of in situ chemical oxidation using potassium permanganate for remediation of complex DNAPL source zones. Journal of Contaminant Hydrology, 2008,102(1-2):3-16
[17]  孟凡生,王业耀,汪春香,等. 三氯乙烯污染地下水的原位修复技术研究及应用现状. 四川环境, 2005,24(3):70-73 Meng F. S., Wang Y. Y., Wang C. X., et al. Review of in-situ remediation technology and its application for groundwater contaminated by trichloroethylene. Sichuan Environment, 2005,24(3):70-73(in Chinese)
[18]  Ross C., Lawrence C. M., David L. F., et al. Characteristics of potassium permanganate encapsulated in polymer. Journal of Environmental Engineering, 2005,131(8):1203-1211
[19]  Lee B. S., Kim J. H., Lee K. C., et al. Efficacy of controlled-release KMnO4(CRP) for controlling dissolved TCE plume in groundwater: A large flow-tank study. Chemosphere, 2009,74(6):745-750
[20]  Kang N., Hua I., Rao P. S. C. Production and characterization of encapsulated potassium permanganate for sustained release as an in situ oxidant. Industrial & Engineering Chemistry Research, 2004,43(17):5187-5193
[21]  Tatsi A. A., Zouboulis A. I., Matis K. A., et al. Coagulation-flocculation pretreatment of sanitary landfill leachates. Chemosphere, 2003,53(7):737-744
[22]  Chian E. S. K., DeWalle F. B. Sanitary landfill leachates and their treatment. Journal of the Environmental Engineering Division, 1976,102(2):411-431
[23]  Renou S., Givaudan J. G., Poulain S., et al. Landfill leachate treatment: Review and opportunity. Journal of Hazardous Materials, 2008,150(3):468-493
[24]  崔海炜,孙继朝,张英,等. 可渗透反应墙原位修复垃圾渗滤液污染地下水. 环境工程学报,2012,6(8):2698-2704 Cui H. W., Sun J. C., Zhang Y., et al. In situ remediation of leachate-polluted groundwater with permeable reactive barrier technique. Chinese Journal of Environmental Engineering, 2012,6(8):2698-2704(in Chinese)
[25]  丁建刚,黄桂荣,王伟. 中性高锰酸钾溶液稳定性研究. 中国环境监测, 2006,22(1):49-50 Ding J. G., Huang G. R., Wang W. Study on stability of neutral potassium permanganate liquid. Environmental Monitoring of China, 2006,22(1):49-50(in Chinese)
[26]  Kim S. H., Kim K., Ko K. S., et al. Co-contamination of arsenic and fluoride in the groundwater of unconsolidated aquifers under reducing environments. Chemosphere, 2012,87(8):851-856

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133