Performances of Micro-electrolysis for Decomposing Organic Pollutions in Stabilized Landfill Leachate
-
摘要: 采用微电解法对老龄垃圾渗滤液进行预处理,研究了最佳工艺条件并分析了微电解法去除垃圾渗滤液中有机污染物的特性.结果表明:最佳条件为pH为4,铁屑与活性碳体积比为1:2,反应时间为1.5h.在上述工艺条件下,对老龄渗滤液中的化学需氧量和难降解有机物去除率分别为84.5%和89.9%.经微电解法预处理后,出水的可生化系数增加了116.6%,难降解有机物的相对含量降低了32.8%.Abstract: A micro-electrolysis procedure for decomposing organic pollutions in stabilized landfill leachate pretreatment was optimized,and performances of the procedure were investigated. The results showed that the optimal pH was 4.0,the volume fraction of cast iron scraps to that of granular active carbon was 1:2,and the reaction time was 1.5 h. Under the optimal procedure,the removal rates of chemical oxygen demand (COD) and refractory organic chemicals of stabilized landfill leachate were 84.5% and 89.9%,respectively. After the pretreatment by micro-electrolysis method,the biodegradablity coefficient of the leachate increases by 116.6%,and the concentration of refractory organic chemicals in the leachate decreases by 32.8%.
-
Key words:
- micro-electrolysis /
- landfill leachate /
- refractory chemical /
- biodegradability
-
邱忠平,杨立中,刘丹,等.优势菌株对垃圾渗滤液COD的降解特性[J].西南交通大学学报,2006,41(2):264-268.QIU Zhongping,YANG Lizhong,LIU Dan,et al.Performances of dominant strains for degradation of COD in leachate[J].Journal of Southwest Jiaotong University,2006,41(2):264-268.[2] 刘军,鲍林发,汪苹,等.运用GC-MC联用技术对垃圾渗滤液中有机污染物成分的分析[J].环境污染治理技术与设备,2003,4(8):31-33.LIU Jun,BAO LiMa,WANG Ping,et al.Analyses of organic pollutant components in leachate by combined GC-MS technique[J].Techniques and Equipment for Environmental Pollution Control,2003,4(8):31-33.[3] 杨健,郑广宏.微电解预处理难降解有机废水的研究进展[J].工业用水与废水,2008,39(5):1.5.YANG Jian,ZHENG Guanghong.Research progress on pretreatment of hard-degradable organic wastewater by micro-electrolysis process[J].Industrial Water&Wastewater,2008,39(5):1-5.[4] 武道吉,李秋梅,谭风训.铁屑微电解-混凝深度处理麦草浆中段废水[J].中国造纸,2007,26(2):20-22.WU Daoji,LI Qiumei,TAN Fengxun.Advanced treatment of washing and bleaching effluent of wheat straw pulp with using iron chips micro-electrolysis-coagulate process[J].China Pulp & Paper,2007,26(2):20-22.[5] 《水与废水监测分析方法》编委会.水与废水监测分析方法[M].4版.北京:中国环境科学出版社,2003:38-213.[6] 薛俊峰,何品晶,邵立明,等.高氨氮难降解渗滤液电解氧化处理的特性[J].同济大学学报:自然科学版,2005,33(12):1630-1634.XUE Junfeng,HE Pinjing,SHAO Liming,et al.Study on characteristics of refractory leachate with high NH3-N concentration by electrolytic oxidation[J].Journal of Tongi University:Natural Science,2005,33(12):1630-1634.[7] 周百瑞,何其虎,张绍园.紫外分光光度法在混凝处理二沉池出水中的应用[J].内蒙古环境保护,2003,15(4):45-47.YAN Bairui,HE Qihu,ZHANG Shaoyuan.Application of ultraviolet spectrophotometer in treatment of secondary effluent plant by coagulation[J].Inner Mongolian Environmental Sciences,2003,15(4):45-47.[8] 岳琳,王启山,徐美娟,等.粒子电极对垃圾渗滤液的电催化降解[J].水处理技术,2008,34(4):65-68.YUE Lin,WANG Qishan,XU Meijuan,et al.Electrochemical oxidation of landfill leachate with particle electrodes[J].Technology of Water Treatment,2008,34(4):65-68.[9] 孟刚,邹小兵,郑泽根,等.铁炭微电解-亚铁还原氧化法处理花菁废水的研究[J].感光科学与光化学,2002,20(4):303-312.MENG Gang,ZOU Xiaobing,ZHENG Zegen,et al.Treatment of wastewater from cyanine dye manufacture by micro-electrolysis reduction-oxidation system[J].Photographic Science and Photochemistry,2002,20(4):303-312.[10] 邓芹英,刘岚,邓慧敏.波谱分析教程[M].北京:科学出版社,2003:5-6,18-20.[11] 汤贵兰,蓝伟光,张烨,等.焦炭和废铁屑微电解预处理垃圾渗滤液的研究[J].环境污染治理技术与设备,2006,7(11):121-123.TANG Guilan,LAN Weiguang,ZHANG Ye,et al.The research of micro-electrolysis process composed of discarded iron slag and coke pretreating landfill leachate[J].Techniques and Equipment for Environmental Pollution Control,2006,7(11):121-123.[12] 刘金香,王艳敏,娄金生.微电解-Fenton-MAP沉淀法处理垃圾渗滤液的试验研究[J].南华大学学报:自然科学版,2007,21(1):90-93.LIU Jinxiang,WANG Yanmin,LOU Jinsheng.An experiment on landfill leachates treatment by composite process of micro electrol-Fenton-magnesium ammonium phosphate(MAP)method[J].Journal of Nanhua University:Science and Technology,2007,21(1):90-93.
点击查看大图
计量
- 文章访问数: 1572
- HTML全文浏览量: 58
- PDF下载量: 182
- 被引次数: 0