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首页> 外文会议>Metals and related substances in drinking water : COST action 637 >Water cleaning from toxic elements using phytofiltration with Elodea canadensis
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Water cleaning from toxic elements using phytofiltration with Elodea canadensis

机译：使用加拿大伊乐藻进行植物滤池中的有毒元素水净化

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Using plants to remove toxic elements from various polluted waters has successfully been shown by so called phytofiltration. Best results are found when using submerged plants, and among the submerged species tested Elodea canadensis is suitable. The aim was to investigate the removal efficiency of a number of toxic elements and essential basic cations by E. canadensis. The importance was to find out if removal of toxic elements could be performed without a significant alteration of the element concentration of the essential basic cations. In five different studies we investigated removal of Cd, Cu, Zn, Pb, Sb, As, Mg, Ca, Na, K as well as changes in alkalinity (HCO_3~-) and pH by f. canadensis. The data showed that plants removed 51% Zn, 33% Cu, 41% Cd, 32% Pb, 75% As and 8% Sb. There was no removal of Mg, Ca, Na and K, and no or only a small change in HCO_3~- and pH. Thus, it seems possible to remove toxic elements from water by submerged plants and simultaneously keep the essential elements in the water for a good water quality.
机译：所谓的植物过滤已成功地证明了使用植物去除各种污水中的有毒元素。当使用淹没植物时，发现最佳结果，并且在测试的淹没物种中，加拿大一枝电藻是合适的。目的是研究加拿大大肠埃希菌对许多有毒元素和必要的碱性阳离子的去除效率。重要性在于确定是否可以在不显着改变基本碱性阳离子元素浓度的情况下去除有毒元素。在五项不同的研究中，我们研究了通过f去除Cd，Cu，Zn，Pb，Sb，As，Mg，Ca，Na，K以及碱度（HCO_3〜-）和pH的变化。加拿大。数据表明，植物去除了51％的Zn，33％的Cu，41％的Cd，32％的Pb，75％的As和8％的Sb。没有去除Mg，Ca，Na和K，并且HCO_3〜-和pH没有或仅有很小的变化。因此，似乎可以通过被淹没的植物从水中去除有毒元素，并同时将必需元素保留在水中以获得良好的水质。

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