| 摘要 |
<p>1. Process for recycling waste printed papers, in which : - the said papers are converted into a slush pulp (1, 2) ; - the ink is removed from the suspension (3, 4) ; - the purified, at least partially de-inked pulp is then treated with bleaching agents (6) ; - the bleached pulp is washed (10) before use (7) ; - and in which the waste waters (14) from this washing (10, 13) of the bleached pulp are recycled, characterized in that the said waste waters (14) from this washing (10, 13) of the bleached pulp (6), which contain the residual ink and the unconsumed bleaching reagents, are recycled directly as a whole into the initial stage (1, 2) of formation of a slush pulp.</p> |
