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V.2. Separarea sistemelor eterogene Sistemele eterogene sunt ...

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cu, c 2 , concentratia solidului in sediment, pentru decantorul din<br />

fig.V.38 se poate intocmi un bilant global de materiale,<br />

respectiv un bilant de materiale al fazei solide:<br />

- bilantul global:<br />

M m0 = M m1 + M m2<br />

- bilantul fazei solide:<br />

Mm0 ⋅ c0= Mm1⋅ 0+ Mm2⋅c2 ( deoarece se poate considera ca, practic c1 =0 )<br />

De unde:<br />

⎛ c ⎞ 0<br />

Mm1= Mm0 − Mm2= Mm0 ⎜1− ⎟<br />

⎝ c2<br />

⎠<br />

(V.123)<br />

(V.124)<br />

(V.125)<br />

70

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