8Sjogren B, Engstrand P, Htun M. Some Aspeces of High Consistency Peroxide Bleaching Acting Process Efficiency and Pulp Properties[C]. Int Mechanical Pulping Conf, 1993 ;409.
9Pereboom J H F, Vereijken T L F M. Methanogenic granule develop- ment in full scale internal circulation reactors[ J]. Wat. Sci. Tech. ,1994, 30(8): 9.