Question

1. This semester, we will scc the use of clarifiers and sedimentation basins to settle suspended solids out of liquid streams. Usually, the sludge that comes from the bottom of a clarifier is sent to a belt press filter to further dewater the sludge. Consider the following process diagram. clarifier belt press thickened sludge The table below gives the volumetric flow rate and the concentration of suspended solids in some of the streams shown in the diagram. You may assume that the density of evcry stream is the same (1000 kg/m); this assumption is not perfect, but it is close enough. Stream Flow rate Solids cono (mg/L) 2,500 9,500 (L/s) 100 97 30 Your job is to complcte the table by estimating/calculating the remaining flow rates and solids concentrations

Answer 1

thickended sludse A Floc rate D loo 30 : 30 locs nate at e -rlow sote e 130 -+ : 33 니 Flous sale a 33 3o

Conetnation of suspended solids ot F Flocs alex Contentnaliona.xx 130 × χ f : 97x5+ 33 × 9500 2u1S.0+ m9/レ. Xf = D : 2132. 834 mg , L, XE : 831ヲ1.63 mg / L s ne a midconc ( mg)レ) 2 S00 5 asoo 2132 83 + 831), 63 100 q구 30 130