| "老龄期"填埋场渗滤液COD蒸发规律研究 |
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| 引用本文： | 岳东北,许玉东,聂永丰,金宜英,刘建国,黄云峰."老龄期"填埋场渗滤液COD蒸发规律研究[J].环境工程学报,2006,7(3):57-60. |
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| 作者姓名： | 岳东北 许玉东 聂永丰 金宜英 刘建国 黄云峰 |
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| 作者单位： | 清华大学环境科学与工程系,北京,100084 |
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| 基金项目： | 清华大学校科研和教改项目 |
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| 摘 要： | "老龄期"填埋场渗滤液由于可生化性差而难于处理.采用常规蒸发、减压蒸发和载气蒸发处理不同pH值的"老龄期"渗滤液.实验结果表明,3种蒸发方式下,冷凝液COD下降过程中均存在明显的浓度转折点,转折点之后COD维持较低水平,为"老龄期"渗滤液的"三分处理法"提供理论依据.与常规蒸发相比,减压蒸发和载气蒸发的前期冷凝液COD较高,且浓度转折点偏后.
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| 关 键 词： | "老龄期"渗滤液 减压蒸发 载气蒸发 冷凝液 挥发性有机物 |
| 文章编号： | 1008-9241(2006)03-0057-04 |
| 修稿时间： | 2004年10月13 |
Study on the evaporating rule of COD from old landfill leachate |
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| Yue Dongbei,Xu Yudong,Nie Yongfeng,Jin Yiying,Liu Jianguo,Huang Yunfeng.Study on the evaporating rule of COD from old landfill leachate[J].Techniques and Equipment for Environmental Pollution Control,2006,7(3):57-60. |
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| Authors: | Yue Dongbei Xu Yudong Nie Yongfeng Jin Yiying Liu Jianguo Huang Yunfeng |
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| Abstract: | It is difficult to treat old landfill leachate for its low biodegradability.Normal evaporation,vacuum evaporation and gas-carrying evaporation were adopted for treatment of old landfill leachate with different pH values.The results show that,for three types of evaporation tests,there always exist clear turning points of concentrations along with the decrease of condensates COD in the process of evaporation,and COD keeps on the low level after these points.This fact means old landfill leachate can be divided into three parts to be treated respectively.For vacuum evaporation and gas-carrying evaporation,the earlier-stage condensates COD are higher and the turning points are later than normal evaporation. |
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| Keywords: | old landfill leachate vacuum evaporation gas-carrying evaporation condensate VOCs |
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