Accession Number : ADA498275


Title :   Aggregation of Montmorillonite and Organic Matter in Aqueous Media Containing Artificial Seawater


Descriptive Note : Journal article


Corporate Author : NAVAL RESEARCH LAB STENNIS SPACE CENTER MS MARINE GEOACOUSTICS DIV


Personal Author(s) : Furukawa, Yoko ; Watkins, Janet L. ; Kim, Jinwook ; Curry, Kenneth J. ; Bennett, Richard H.


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA498275


Report Date : 23 JAN 2009


Pagination or Media Count : 12


Abstract : The dispersion-aggregation behaviors of suspended colloids in rivers and estuaries are affected by the compositions of suspended materials (i.e., clay minerals vs. organic macromolecules) and salinity. Laboratory experiments were conducted to investigate the dispersion and aggregation mechanisms of suspended particles under simulated river and estuarine conditions. The average hydrodynamic diameters of suspended particles (representing degree of aggregation) and zeta potential (representing the electrokinetic properties of suspended colloids and aggregates) were determined for systems containing suspended montmorillonite, humic acid, and/or chitin at the circumneutral pH over a range of salinity (0 - 7.2 psu).


Descriptors :   *ORGANIC MATERIALS , *MONTMORILLONITE , *SEA WATER , RIVERS , COLLOIDS , ESTUARIES , CHITIN , MACROMOLECULES , SUSPENDED SEDIMENTS , REPRINTS , SALINITY


Subject Categories : PHYSICAL AND DYNAMIC OCEANOGRAPHY
      GEOLOGY, GEOCHEMISTRY AND MINERALOGY


Distribution Statement : APPROVED FOR PUBLIC RELEASE