EFFECT OF ORGANIC PROPERTIES ON THE MUD MOVEMENT IN THE POROUS MEDIA OF SAND

Abstract

Transportation and deposition of mud in tidal flats are closely associated with the tidal flats environment and the sludge-ization of tidal flats. It is thought that the transportation and deposition of mud are affected by the organic properties of mud, such as the amount and decomposition degree of organic matter. In this paper, an experimental investigation of the mud movement in packed sand was performed with mud in different organic properties. The experimental results suggested that the mud exists high amount of organic matter is easy to remain in the packed sand, and deposit in the pore of sand in loose state. In addition, it was also found that the deposition behavior of mud in the pore was not only affected by the organic properties but also the pore structure and the characteristic of infiltration flow.