采用阴阳离子双隔膜三室电解槽,将电渗析技术与Fenton试剂法结合,去除垃圾渗滤液中氨氮和COD_(Cr). 垃圾渗滤液中的氨氮通过电渗析技术富集到阴极液中,随后用化学沉淀法加以去除. 同时,在铁阳极上生成的Fe~(2+)离子,与滴加入阳极液中的H_2O_2反应生成Fenton试剂,降解有机物,降低COD_(Cr). 实验结果表明,模拟废水中的氨氮透过率达80%,垃圾渗滤液中氨氮浓度和COD_(Cr)由原来的1 982和2 248 mg/L分别降至200和127 mg/L.
Electrodialysis and Fenton reagent method were combined to decrease the concentration of NH_4~+ -N and COD_(Cr) in landfill leachates by means of coupling membrane triple chamber cell. NH_4~+ -N in landfill leachates was enriched in catholyte by electrodialysis, then removed by chemical precipitation. In the meantime, Fe~(2+) was generated at the Fe anode. H_2O_2 was dropped into the anolyte to produce Fenton reagent, which could degrade organic compounds and decrease the concentration of COD_(Cr). The experimental results show that the removal rate of NH_4~+ -N in simulated wastewater was up to 80% , and the concentrations of NH_4~+ -N and COD_(Cr) in the landfill leachates were decreased from 1 982 mg/L and 2 248 mg/L to 200 mg/L and 127 mg/L, respectively.
参考文献
| [1] | QIAN Cheng(钱澄).Recycling Res(再生资源研究)[J],2002,23(4):41 |
| [2] | DONG Chun-Song(董春松),FAN Yao-Bo(樊耀波),LI Gang(李刚),YANG Wen-Jing(杨文静),YUAN Dong-Dong(袁栋栋).Environ Sci(环境科学)[J],2007,28(4):747 |
| [3] | LI Hai-Sheng(李海生),LIU Guang-Hui(刘光辉),LIU Liang(刘亮),LI Yu(李鱼),LIU Hong-Liang(刘鸿亮),CHEN Fu(陈复).Res Environ Sci(环境科学研究)[J],2004,17(1):77 |
| [4] | LIU Fu-Dong(刘福东),CHEN Yong-Gui(陈永贵),ZHANG Ke-Neng(张可能).China Water Wastewater(中国给水排水)[J],2007,23(18):95 |
| [5] | MA Zeng-Yi(马增益),JIANG Xu-Guang(蒋旭光),QIU Kun-Zan(邱坤赞),YAN Jian-Hua(严建华),CHI Yong(池涌),CEN Ke-Fa(岑可法).J Zhejiang Univ(浙江大学学报)[J],2001,35(6):667 |
| [6] | WU Wen-Ji(吴文继),SUN Ya-Bing(孙亚兵),FENG Jing-Wei(冯景伟),XU Lei(徐磊),TIAN Yuan-Chun(田园春),LI Shu(李署).Techni Equip Environ Pollution Control(环境污染治理技术与设备)[J],2006,7(2):112 |
| [7] | ZHONG Hong-Chun(钟红春),ZHOU Shao-Qi(周少奇),HU Yong-Chun(胡永春).Environ Sci(环境科学)[J],2007,28(11):2 473 |
| [8] | Wiszniowski J,Surmacz-Górska J,Robert D,Weber J V.J Environ Manag[J],2007,85(1):59 |
| [9] | PAN Zhong-Sheng(潘终胜),TANG Jin-Hui(汤金辉),ZHAO Wen-Yu(赵文玉),YANG Guo-Qing(杨国清),LIU Kang-Huai(刘康怀).J Guilin Inst Technol(桂林工学院学报)[J],2003,23(1):89 |
| [10] | JIA Yu-He(贾玉鹤),LI Jing(李晶),LIU Hong-Bo(刘洪波),SUN Jian-Ye(孙建业).Chinese J Environ Eng(环境工程学报)[J],2007,1(8):74 |
| [11] | ZHANG Dao-Bin(张道斌),LV Yu-Juan(吕玉娟),ZHANG Hui(张晖).Environ Chem(环境化学)[J],2007,26(1):62 |
| [12] | LIU Yu-Lin(刘玉林),HE Jie(何杰),XIE Tong-Feng(谢同凤).Technol Water Treatment(水处理技术)[J],2002,28(2):118 |
| [13] | Panizza M,Cerisola G.Water Res[J],2001,35(16):3 987 |
| [14] | WU Dong-Lei(吴东雷),ZHENG Ping(郑平).Environ Sci Technol(环境科学与技术)[J],2004,27(2):34 |
| [15] | ZHANG Hui(张晖),HUANG C P.China Water Wastewater(中国给水排水)[J],2001,17(3):1 |
| [16] | Wuhan University (武汉大学)Chief-Edr(主编).Analytical Chemistry Experiment(分析化学实验)[M].Beijing(北京):Higher Education Press(高等教育出版社),1996:155 |
| [17] | Bibik E E.Rus J Appl Chem[J],2005,78(2):224 |
| [18] | Cherif A T,Molenat J,Elmidaoui A.J Appl Electrochem[J],1997,27(9):1 069 |
| [19] | Gain E,Laborie S,Viers Ph,Rakib M,Hartmann D,Durand G.Desalination[J],2002,149(1-3):337 |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%