The total amount of ClO2 required to reach 88%ISO brightness for the MK pulp was about 40.8% less than that for CK pulp. Correspondingly,MK pulp had lower AOX content in bleaching effluent than CK pulp in ECF bleaching.

• 采用ECF(O D0 Eo D1 D2 )漂序漂至 88%25ISO白度时 ,MK浆二氧化氯用量比CK浆少 40 8%25 ,漂白废水中AOX的含量也相应降低