A laboratory examination of floc characteristics with regard to turbulent shearing

Marine Geology

Volumn 160, Issue 1-2, 1999, Pages 147-170

  Manning, A J ^a   Dyer, K R ^a  

^a UNIVERSITY OF PLYMOUTH   (United Kingdom)

Author keywords

Effective density; Floc size; Flocculation; Settling velocity; Turbulent shear

Indexed keywords

ESTUARINE SEDIMENT; FLOCCULATION; SHEAR FLOW; SUSPENDED SEDIMENT; TURBULENCE;

EID: 0032797562     PISSN: 00253227     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0025-3227(99)00013-4     Document Type: Article

References (55)

1. Al Ani S., Dyer K.R., Huntley D.A. Measurement of the influence of salinity on floc density and strength. Geo-Mar. Lett. 11:1991;154-158.
2. Alldredge A.L., Gotschalk C. In situ settling behaviour of marine snow. Limnol. Oceanogr. 33:1988;339-351.
3. Allen, T., 1975. Particle size measurement. Chapman & Hall, London, 454 pp.
4. Argaman Y., Kaufman W.J. Turbulence and flocculation. J. Sanitary Eng. ASCE. 96:1970;223-241.
5. Ayesa E., Margeli M.T., Florez J., Garcia-Heras J.L. Estimation of break-up and aggregation coefficients in flocculation by a new algorithm. Chem. Eng. Sci. 46(1):1992;39-48.
6. Bale A.J., Morris A.W. In situ measurement of particle size in estuarine waters. Estuarine Coastal Shelf Sci. 24:1987;253-263.
7. Burban, P.Y., 1987. The flocculation of fine-grained sediments in estuarine waters. MSc. thesis, Dep. of Mech. Eng. Univ. of Calif., Santa Barbara, USA.
8. Burban P.-Y., Lick W., Lick J. The flocculation of fine-grained sediments in estuarine waters. J. Geophys. Res. 94(C6):1989;8323-8330.
9. Burban P.-Y., Xu Y.-J., McNeil J., Lick W. Settling speeds of flocs in fresh water and seawater. J. Geophys. Res. 95(C10):1990;18213-18220.
10. Chow, V.T., 1959. Open Channel Hydraulics. McGraw-Hill, New York.
11. Delo, E.A., 1988. Estuarine muds manual. Hydraulics Research, Wallingford. Report No. SR164, pp. 23-26.
12. Dyer, K.R., 1986. Coastal and Estuarine Sediment Dynamics. Wiley, Chichester, 342 pp.
13. Dyer K.R. Sediment processes in estuaries: future research requirements. J. Geophys. Res. 94(C10):1989;14327-14339.
14. Dyer, K.R., Manning, A.J., 1998. Observation of the size, settling velocity and effective density of flocs, and their fractal dimensions. J. Sea Res., in press.
15. Eisma D., Boon J., Groenewegen R., Ittekkot V., Kalf J., Mook W.G. Observations on macro-aggregates, particle size and organic composition of suspended matter in the Ems estuary. Mitt. Geol.-Palaontol. Inst. niv. Hamburg, SCOPE/UNEP Sonderbereich. 55:1983;295-314.
16. Eisma D., Schuhmacher T., Boekel H., Van Heerwaarden J., Franken H., Lann M., Vaars A., Eijgenraam F., Kalf J. A camera and image analysis system for in situ observation of flocs in natural waters. Neth. J. Sea Res. 27:1990;43-56.
17. Eisma D., Bernard P., Cadee G.C., Ittekkot V., Kalf J., Laane R., Martin J.M., Mook W.G., Van Put A., Schuhmacher T. Suspended matter particle size in some west European estuaries. Neth. J. Sea Res. 28(3):1991;193-220.
18. Fennessy, M.J., 1994. Development and testing of an instrument to measure estuarine floc size and settling velocity in situ. PhD Thesis. University of Plymouth, 128 pp.
19. Fennessy M.J., Dyer K.R. Floc population characteristics measured with INSSEV during the Elbe estuary intercalibration experiment. J. Sea Res. 36(1-2):1996;55-62.
20. Fennessy M.J., Dyer K.R., Huntley D.A. INSSEV: an instrument to measure the size and settling velocity of flocs in situ. Mar. Geol. 117:1994;107-117.
21. Fennessy M.J., Dyer K.R., Huntley D.A. Size and settling velocity distributions of flocs in the Tamar Estuary during a tidal cycle. Neth. J. Aquat. Ecol. 28:1994;275-282.
22. Fennessy, M.J., Dyer, K.R., Huntley, D.A., Bale, A.J., 1997. Estimation of settling flux spectra in estuaries using INSSEV. Proc. INTERCOH'94, Wallingford, England. Wiley, Chichester, pp. 87-104.
23. Fitzpatrick, F., 1991. Studies of sediments in a tidal environment. PhD Thesis. Department of Geological Sciences, University of Plymouth, 221 pp.
24. Gibbs R.J. Coagulation rates of clay minerals and natural sediments. J. Sed. Petrol. 53(4):1983;1193-1203.
25. Gibbs R.J. Estuarine flocs: their size settling velocity and density. J. Geophys. Res. 90(C2):1985;3249-3251.
26. Gibbs R.J., Konwar L.N. Sampling of mineral flocs using Niskin bottles. Environ. Sci. Technol. 17(6):1983;374-375.
27. Hill P.S. Sectional and discrete representations of floc breakage in agitated suspensions. Deep-Sea Res. 43:1996;679-702.
28. Hunt, J.R., 1986. Particle aggregate break-up by fluid shear. In: Mehta, A.J. (Ed.), Estuarine Cohesive Sediment Dynamics. Springer, Berlin, pp. 85-109.
29. Kolmogorov A.N. The local structure of turbulence in incompressible viscous fluid for very large Reynolds numbers. C.R. Acad. Sci. URSS. 30:1941;301.
30. Kolmogorov A.N. Dissipation of energy in locally isotropic turbulence. C.R. Acad. Sci. URSS. 32:1941;16.
31. Kranenburg C. The fractal structure of cohesive sediment aggregates. Estuarine Coastal Shelf Sci. 39:1994;451-460.
32. Krone, R.B., 1963. A study of rheological properties of estuarial sediments. Hyd. Eng. Lab. and Sanitary Eng. Lab., University of California, Berkeley, Report No. 63-68.
33. Krone, R.B., 1986. The significance of aggregate properties to transport processes. In: Mehta, A.J. (Ed.), Estuarine Cohesive Sediment Dynamics. Springer, Berlin, pp. 66-84.
34. Lick, W., 1994. Modelling the transport of sediment and hydrophobic contaminants in surface waters. US/Israel Workshop on monitoring and modelling water quality, May 8-13, 1994. Haifa, Israel.
35. Lick W., Huang H., Jepsen R. Flocculation of fine-grained sediments due to differential settling. J. Geophys. Res. 98(C6):1993;10279-10288.
36. Manning, A.J., 1996. A laboratory study to examine the response of fine cohesive sediment suspensions to turbulent shearing. MSc. Thesis. Institute of Marine Studies, University of Plymouth, 86 pp.
37. Manning, A.J., Fennessy, M.J., 1997. INSSEV (In Situ Settling Velocity instrument) - 1.3: Operator Manual. Institute of Marine Studies, University of Plymouth, 25 pp.
38. McCave I.N. Vertical flux of particles in the ocean. Deep-Sea Res. 22:1975;491-502.
39. McCave I.N. Size spectra and aggregation of suspended particles in the deep ocean. Deep-Sea Res. 31:1984;329-352.
40. Mehta A.J., Partheniades E. An investigation of the depositional properties of flocculated fine sediment. J. Hydrol. Res. 92(C13):1975;361-381.
41. Mehta, A.J., Lott, J.W., 1987. Sorting of fine sediment during deposition. Proc. Specialty Conf. Advances in Understanding Coastal Sediment Processes. Am. Soc. Civ. Eng., New York, pp. 348-362.
42. Millero F.J., Poisson A. International one-atmosphere equation of state seawater. Deep-sea Res. 28(A):1981;625-629.
43. Oseen, C.W., 1927. Neuere methoden und ergebnisse. Hydrodynamik. Akad Verlagsges, Leipzig.
44. Owen, M.W., 1971. The effects of turbulence on the settling velocity of silt flocs. Proc. 14th Cong. Int. Assoc. Hydraul. Res. Paris, pp. D4-1-D4-6.
45. Pandya J.D., Spielman L.A. Floc break-up in agitated suspensions: theory and data processing strategy. J. Colloid Interface Sci. 90:1982;517-531.
46. Parker D.S., Kaufman W.J., Jenkins D. Floc break-up in turbulent flocculation processes. J. Sanitary Eng. Div. Proc. Am. Soc. Civil Eng. 98(SA1):1972;79-97.
47. Partheniades E. Erosion and deposition of cohesive soils. J. Hydr. Div. Proc. Am. Soc. Civ. Eng. 98:1965;79-99.
48. Stolzenbach K.D., Elimelich M. The effect of density on collisions between sinking particles: implications for particle aggregation in the ocean. J. Deep-Sea Res. I. 41(3):1994;469-483.
49. Tambo N., Watanabe Y. Physical characteristics of flocs: I. The floc density function and aluminium floc. Water Res. 13:1979;409-419.
50. Ten Brinke, W.B.M., 1993. The impact of biological factors on the deposition of fine grained sediment in the Oosterschelde (The Netherlands). PhD Thesis, University of Utrecht, The Netherlands, 252 pp.
51. Tsai C.H., Iacobellis S., Lick W. Flocculation of fine-grained sediments due to a uniform shear stress. J. Great Lakes Res. 13:1987;135-146.
52. Van Leussen, W., 1988. Aggregation of particles, settling velocity of mud flocs: a review. In: Dronkers, J., van Leussen, W. (Eds.), Physical Processes in Estuaries. Springer, Berlin, pp. 347-403.
53. Van Leussen, W., 1994. Estuarine macroflocs and their role in fine-grained sediment transport. PhD Thesis, University of Utrecht, The Netherlands, 488 pp.
54. Van Leussen W., Cornelisse J.M. The determination of the sizes and settling velocities of estuarine flocs by an underwater video system. Neth. J. Sea Res. 31(3):1994;231-241.
55. Winterwerp, J.C., 1997. A simple model for turbulence induced flocculation of cohesive sediment. J. Hydraulic Res., IAHR.