Measurement of the influence of salinity on floc density and strength |
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| Authors: | S Al Ani K R Dyer D A Huntley |
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| Institution: | (1) Department of Engineering Science, University of Oxford, Oxford, UK;(2) Institute of Marine Studies, Polytechnic South West, Drake Circus, PL4 8AA Plymouth, UK |
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| Abstract: | The effective density and the strength of flocs formed in the laboratory from mud from the Tamar Estuary reached a maximum
value at a salinity of 10–15‰ within the concentration range studied (0.1–1.0 g liter−1). For a constant salinity and concentration, the density decreases with increasing floc size. The strength of the flocs increases
with the floc diameter. However, the strength of the individual particle bonds within the floc decreases with size. Large
flocs were relatively more brittle than smaller ones. The results suggest that larger flocs may be disrupted by the formation
of unequal fragments. |
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