7Morgenroth E, Sherden T, van Loosdrecht M C M, et al.Aerobic granular sludge in a sequencing batch reactor[J]. Wat Res,1997,31 (12) :3191 -3194.
8Peng Dangcong, Nicolas B, Delgenes J P, et al. Aerobic granular sludge - a case report[J]. Wat Res,1999,33(3) :890 -893.
9Tay J H, Liu Q S, Liu Y. Aerobic granulation in sequential sludge in sequential sludge blanket reactor[ J ]. Wat Sci Tech,2002,46(4 -5) :13 - 18.
10Schmidt I, Sliekers O, Schmid M, et al. Aerobic and anaerobic ammonia oxidizing bacteria-competitors or natural partners?[J].FEMS Microbiology Ecology, 2002, 39(3) : 175--181.