%0 Journal Article
%T Criteria for Distinguishing Floc  Sedimentation and Gel-Like Network  Sedimentation of Cohesive Fine-Grained  Sediment in a Turbulent Flow
%A Zhongfan Zhu
%J Journal of Geoscience and Environment Protection
%P 24-31
%@ 2327-4344
%D 2014
%I Scientific Research Publishing
%R 10.4236/gep.2014.25004
%X <p class=\"MsoNormal\">
	<span lang=\"EN-US\">The study on the criteria used to distinguish
floc sedimentation and gel-like network sedimentation of cohesive fine-grained sediment
in a turbulent flow has rarely been carried out. In this preliminary study, we derive
three criteria to distinguish these two different sedimentation phases by considering
the comparison of the time that a characteristic floc takes to settle through mean
distance between characteristic flocs and the time that it takes to move through
the same distance under the influence of a turbulent flow. These criteria incorporate
physical and chemical factors that have been verified to have some influences on
the sediment flocculation in some published literatures, and a simple analysis result
is found to be consistent with our qualitative understandings of flocculation phenomenon
of cohesive fine-grained sediment.</span>
</p>
%K Criteria
%K Floc Sedimentation
%K Gel-Like Network Sedimentation
%K Cohesive Sediment
%K Turbulent Flow
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52366