| 摘要 |
<p>The invention relates to a method for the treatment of process water or effluent from a papermaking process, in which this water is subjected to at least one anaerobic purification step (1), an aeration step (2) and a solids separation step (3) and the water is then returned to the production process, and at least two treated water streams of different quality, which originate from a different combination of purification steps, are returned to different points in the production process. <IMAGE></p> |
