Settling column analysis of flocculation particles: A column analysis of a flocculating suspension is run in the apparatus shown below.the initial solids concentration is 250mg/L.the resulting matrix is shown below.what will be the overall removal efficiency of a settling basin which is 3m deep with a detention time of 1 h and 45 min? Time of sampling.min 90 120 Depth (m) 0.5 133* 30 60 150 180 83 50 38 30 23 1.0 180 125 93 65 55 43 1.5 203 150 118 93 70 58 2.0 213 168 135 110 90 70 2.5 220 180 145 123 103 80 3.0 225 188 155 133 113 95 *Result of suspended solids test on sampel C,mg/L

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Laboratory Determination of Hydraulic Conductivity

Hydraulic conductivity is the measure of flowability of water inside the soil in the presence of a hydraulic gradient. The hydraulic gradient is defined as the difference in the water heads in the soil, which induces a water motion. In simple terms, a hydraulic gradient is the presence of a potential that induces a flow of water.