| 摘要 |
<p>The process can be characterized in that above the layer below the lake-bottom, e.g. above the layer being impermeable to water, a water buffer dam lying in the direction of flow of subsoil water is formed, the path of the subsoil water is closed in its entire cross-section up to the depth of 1,0 to 1,5 m below the maximal susboil water level, while the flow of subsoil water is directed to the soil surface and subsoil water to be cleaned is led to the culture of water-weeds. In sense of the process according to the invention flow of subsoil water is directed to the soil surface in such a manner that above the water buffler dam a layer with good water conductivity is arranged, which in a given case can be combined with an additive of proper grain structure, which is binding resp. retaining toxic waste being harmful for the culture of water-weed, either chemically or by absorption.</p> |
