| 摘要 |
<p>A method for the disposal of waste water containing selenium and inorganic acid salts having a buffering action around a neutral region, such as alkali metal sulphates and boron compounds, in a simple treatment manner with good efficiency and for effectively reducing the concentration of selenium in the waste water in a short time. The method for treating a selenium-containing solution comprises passing a solution containing selenium and inorganic acid salts of other metals through a packed bed of an iron-base metal to precipitate selenium on the surface of the iron-base metal, wherein the solution is brought into contact with the iron-base metal at a temperature of 30 °C or above preferably at a pH ranging from 3 to 7 and, if necessary, the compounds having buffer action around a neutral region and contained in the waste water is removed before the contact of the solution with the iron-base metal.</p> |
