UASBFSBR1,2,3(1.,518035;2.,114001;3.,114001):UASBFSBR,,:;UASBF;SBR:X703.1:C:1000-4602(2003)04-0059-02952003Vol.19CHINAWATER&WASTEWATERNo.4©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.062003Vol.19No.4©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.