TY - JOUR ID - TI - Improvement of sedimentation process using inclined plates AU - Rasha salah AL-kizwini PY - 2015 VL - 2 IS - 1 SP - 100 EP - 114 JO - Mesopotamia Environmental Journal بيئة وادي الرافدين SN - 24102598 AB - in this paper, study the effect of inserting inclined plates at angles (30 , 45 and 60 ) at flow rate(0.5-2) l/min anddetention time (200-50) min, with and without using an alum on the improvement of the turbidity removal efficiency( R) in an up flow settling tank compared without inclined plates, have been investigated by (PDS Sedimentation tank) for treating water from a water solution polluted by kaolinitic clay at initial concentration (360 mg/l ).The results indicate that the plates installed at the basin increased sediment turbidity removal efficiency to (87%) at angle 30° when flow rate equal to (0.5) l/min, detention time (200 min) with using alum and (70%) without using alum, compared without inclined plates, turbidity removal efficiency to (59%) when flow rate equal to (0.5) l/min detention time (200 min) with using alum and (41%) without using alum.

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