Problem $2($category: filtration$)-$ Calculate the filter bed expansion under the following conditions. $1.$ the filter is composed of sand; for the smallest grain size use the smallest typical d$10$ value. For the average grain size use the d$60$ value. $2.$ the filter bed depth is $\mathrm{.}65$m$.3.$ water temp is $20$ degrees celcius. Use the FE Handbook Equation for the expanded porosity $($rather than the equation given in the notes$).$ Since we do not have a low of data, you can assume mono$-$sized media when when actually calculating the bed expansion as an approximation.Problem $2($category: filtration$)$

Calculate the filter bed expansion under the following conditions.

The filter is composed of sand; for the smallest grain size you can use the smallest typical $d_{10}$

value. For the average grain size you can use the $d_{60}$ value.

The filter bed depth is $0\mathrm{.}65m.$

The water temperature is $20C.$

Use the FE Handbook equation for the expanded porosity $($rather than the equation given in the notes$).$

Since we do not have a lot of data, you can assume mono$-$sized media when actually calculating the bed

expansion as an approximation.