Characteristics of Hydraulic Properties and Effluent in Multi-Layered Reclaimed Tidal Soil.

Changes in pore size induced by the porous media of bottom ash presented a challenge to predictive modeling of hydraulic properties and effluent of reclaimed tidal soils having high electrical conductivity and very low clay content. In this investigation we observed characteristics of hydraulic properties and effluent influenced by six different sizes of porous media packed at the bottom of the column layer in response for mobilization of water under saturated water condition. The mobile characteristics and distribution of soil particle moved by leaching were also investigated in column under the saturated state. With these, we tried to figure out a new pore-scale framework that enables removal of solute out of the rhizosphere by considering physico-chemical processes with pore-geometrical, hydrostatic, and hydrodynamic considerations toward prediction of constitutive hydraulic relationships for distinctively different pore geometry. Changes in bulk soil properties due to movement of soil particles served as constraints for water flow patterns, resulting in the transport of solute through the soils. Prediction of saturated hydraulic conductivity were derived from calculations of average flow velocities in multi-layered soil columns packed with reclaimed tidal soil(top) and porous media(bottom).