A plant scale filter using the same filter media is to be used to filter the same sulfide concentrate as in $($b$)$ at $70\%$ solids $($w$/$w$)$ and at a pressure differential of $250$ kPa. If the area of the plant filter is $9\mathrm{.}6$ m$2$ use the batch test equation to estimate the

quantity of filtrate that would pass through the filter in $1$ hour. State any assumptions made in your calculation.