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首页> 外文会议>Global Symposium on Recycling, Waste Treatment and Clean Technology; 20040926-29; Madrid(ES) >ANALYSIS AND PRELIMINARY STUDY OF TREATMENT OF LEACHATE BY WATER HYACINTH
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ANALYSIS AND PRELIMINARY STUDY OF TREATMENT OF LEACHATE BY WATER HYACINTH

机译：水葫芦处理渗滤液的分析与初步研究

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摘要

Sanitary landfill leachates are considered as heavily polluted industrial wastewater and not easily defined by certain characters since their compositions are characterized by their origins and their lifetimes. Chemical composition of leachates generally consists of organic matter (OM); suspended solid (SS); concentrated nutrients such as phosphorus compounds, nitrogen compounds and small amounts of metals like Fe, Pb, Zn, Sn, Cu, Ni, Cr. The leachates are known to cause pollution of surface and ground water which are revealed by over-saturations of NH_4~+ (＞ 600 mg/l), NO_3~- (＞ 30 mg/l), COD (＞ 1000 mg/l), BOD (＞ 100 mg/l). Therefore, treatment to reduce this pollution is required.In this research, Water hyacinth (Eichhornia crassipes) plants, being able o grow in extremely polluted environment, is used as biological treatment tool to clean up leachates. Experimental results show that about 80% of pollutants were treated. The treatment duration and plant density for each particular treatment depend on pollution level and pollutant composition of the leachate. The treated water is then usable as qualifying the industrial wastewater standard of Vietnam [6].
机译：卫生垃圾渗滤液被认为是污染严重的工业废水，由于其成分以其来源和寿命为特征，因此不易用某些特征来定义。渗滤液的化学成分通常由有机物（OM）组成。悬浮固体（SS）；浓缩的养分，例如磷化合物，氮化合物以及少量金属，如铁，铅，锌，锡，铜，镍，铬。已知渗滤液会造成地表水和地下水污染，其表现为NH_4〜+（> 600 mg / l），NO_3〜-（> 30 mg / l），COD（> 1000 mg / l）过饱和，BOD（＞ 100 mg / l）。因此，需要减少这种污染的处理方法。在本研究中，能够在极度污染的环境中生长的水葫芦（Eichhornia crassipes）植物被用作清除渗滤液的生物处理工具。实验结果表明，大约80％的污染物得到了处理。每个特定处理的处理持续时间和植物密度取决于渗滤液的污染水平和污染物组成。然后，经过处理的水可用作越南的工业废水标准[6]。

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