Question

5, (15 points) Primary sludge contains 5% dry solids that are 70%volatile and 30% fixed. Determine The specific gravity of dry solids a) b) The specific gravity of sludge The volume of thickened sludge, if 1,000 kg of dry solids are thickened to 6% in a gravity thickener. 1.0 Specific gravity of volatile solids Specific gravity of fixed solids -2.5 Total mass of dry solids 100 kg Total mass of sludge 100 kg Density of water 1,000 kg/m3 Assume:

Answer 1

, 인"volatile 。/.tixed-30% % Dry solids 5% 0 100: %Volatile 2. txed Svolatile Stixed Solids 25 1.22 . z) | Setido 95 5 1-22 4 Judge

solide produce = look het s IDo-P solīds podurce 160 1o00 ge sludge rte toex hteve, Given looblg du sludge Cenve sludge lolo.

100 Cloo-P) *1000 Vadim e a) sludge 100 4 1000 TH lolo 3 (V) ニ,16.5m