| 摘要 |
Method for natural reduction of some injurious substances in upper suboil water magazines comprising a number of pump down borings (1, 2, 3), which is placed around existing water reclamation borings (A, B, C) and a number of seep drains (D) and a number of reclamation borings (E) to lower suboil water magazines, so that water is pumped up from the borings (E), which is led out into drain (D) and pump down borings (1, 2, 3). By the use of said method, the water containing iron and manganese is pumped from lower suboil water magazines out into the upper suboil water magazine containing nitrate, in which a chemical-biological process takes place, which means precipitation of iron - thereafter precipitations of manganese, and at the same time with this the contents of nitrate is reduced. |
