QUESTION 4 A settling analysis is run on a Type 1 suspension in a laboratory column with a port of 1.9m below the suspension surface. The data obtained are shown below. Time (min) TSS (conc,mg/L) 0 220 3 116 5 98 10 75 20 35 40 10 60 2   What is the theoretical removal efficiency in a settling basin for an overflow of 440 m2/m.day?

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Consolidation parameters

Consolidation is the process of expulsion of pore water present in the voids of soil solids under the pressure of the applied load. This is a quick process in the case of coarse-grained soils since the permeability is high due to the presence of more voids, while it is a slow and gradual process in the case of clayey soil as the permeability of clay is less. An example of consolidation is the settlement of soil under a building due to the load coming from the building.