Estimation of the interior permeability of polymer-flocculated sludge flocs

Advances in Environmental Research - Tập 4 - Trang 163-167 - 2000
R.M Wu1, G.W Tsou1, D.J Lee1
1Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan

Tài liệu tham khảo

Biggs, 1999, Aggregate structure formed via a bridging flocculation mechanism Burganos, 1992, Creeping flow around and through a permeable sphere moving with constant velocity towards a solid wall: a revision, Chem. Eng. Commun., 117, 85, 10.1080/00986449208936058 Chu, C.P., Lee, D.J., 2000 Expression characteristics of polyelectrolyte flocculated sludges. J. Chin. Inst. Chem. Eng., in press. Guan, J., 1999. Ph.D. Dissertation. Univ. New South Wales, Australia. Happel, 1983 Hemme, 1994, Municipal sludge properties and flocculation behaviour, Filtr. Sep., 31, 647, 10.1016/0015-1882(94)80073-1 Hunter, 1989 Lee, 1994, Floc structure and bound water content in excess activated sludges, J. Chin. Inst. Chem. Eng., 25, 201 Lee, 1999, Reply to comments on hydrodynamic drag force exerted on a moving floc and its implications to free settling test, Water Res., 33, 1116 Lee, 1996, Use of free-settling test to estimate activated sludge flocs density, Water Res., 30, 541, 10.1016/0043-1354(95)00229-4 Li, 1989, Fractal geometry of particle aggregates generated in water and wastewater treatment process, Environ. Sci. Technol., 23, 1385, 10.1021/es00069a009 Li, 1990, Structure of activated sludge flocs, Biotechnol. Bioeng., 35, 57, 10.1002/bit.260350109 Mitani, 1983, A structure model for activated sludge flocs, Jpn. Water Res., 6, 65 Payatakes, 1987, Creeping flow around and through a permeable sphere moving with constant velocity towards a solid wall, Chem. Eng. Commun., 58, 119, 10.1080/00986448708911963 Tambo, 1979, Physical characteristics of flocs — I. The floc density function and aluminum floc, Water Res., 13, 409, 10.1016/0043-1354(79)90033-2 Wu, 1998, Hydrodynamic drag force exerted on a moving floc and its implication to free-settling test, Water Res., 32, 760, 10.1016/S0043-1354(97)00320-5 Wu, 1998, Hydrodynamic drag force exerted on a highly porous sphere moving towards an impermeable plate, Chem. Eng. Sci., 53, 3571, 10.1016/S0009-2509(98)00172-9 Wu, 1999, Highly porous sphere moving through centerline of circular tube filled with Newtonian fluid, Chem. Eng. Sci., 54, 5717, 10.1016/S0009-2509(99)00116-5 Wu, 1998, An estimate of waste activated sludge floc permeability: a novel hydrodynamic approach, Water Environ. Res., 70, 1258, 10.2175/106143098X123615