Two parallel rectangular horizontal flow sedimentation tanks are used to treat river water of flow $1\mathrm{.}0($m$^(3))/($s$).$

The dimensions of the settling zone are length $=50$m$,$ width $=12$m$,$ depth $=3$m$.$ A flow splitter distributes

the flow equally over the two tanks. The influent concentration of the SS is $160($g$)/($m$^(3)).$ The particles settle

discretely and the cumulative frequency distribution curve of the settling velocities is approximated by a

straight line passing through the two points $(0($m$)/($s$),0\%)$ and $\{$:$(10)^(*)10^(-3)($m$)/($s$),100\%).$ The dry solids content

of the sludge is $5\%(\backslash$rho $)$ and the $\backslash$rho $\_($s$)=2100$k$($g$)/($m$^(3)).$

For ideal settling conditions,

aRe and Fr for the horizontal water movement. Comment on your results.