The apparatus is designed to demonstrate the hydraulic characteristics and settling efficiencies of a model settling basin. The apparatus consists of a Sedimentation Tank in which the water is fed by overhead tank (available in user laboratory and not in scope of supply) at constant flow rate and is measured with the help of Rotameter. A complete unit for slurry circulation in sedimentation tank also accompanies the set-up including a sump tank for slurry, a feed pump for slurry. Flow rate of slurry entering in sedimentation tank is metered by suitable device.

An accurate dye injection system is provided to inject the known volume of dye in the sedimentation tank. In sedimentation tank a weir is fitted which facilitate to enter the well mixed slurry of known concentration in sedimentation tank uniformly.

EXPERIMENTS:

• To measure the sediment removal efficiency and relating this to the hydraulic characteristics of a sedimentation tank.

UTILITIES REQUIRED:

• Water Supply

  • @ 25 LPM at 1 Bar.

• Electricity Supply

  • 1 Phase, 220 V AC.

• CaCO₃

  • 5 kg, Laboratory Grade.

• Digital Balance

  • Cap. 2500 gm, LC 0.01 gm.

• Colorimeter with 7 Narrow Band Pass Filters covering wavelengths 450 to 750 mm.

TECHNICAL DETAILS:

• Sedimentation Tank

  • Material

    • Acrylic

  • Size

    • 1000 x 400 x 200 mm

• Rotameter for Water

  • Flow Range

    • – 22 LPM (approx).

  • Qunatity

    • 1 No.

• Flowmeter for Slurry

  • Flow Range

    • 0.2 – 2.0 LPM (approx).

  • Quantity 

    • 1 No.

• Sump Tank

  • Material

    • PVC

  • Capacity

    • 120 Ltrs.

  • Quantity 

    • 1 No.

• Feed Pump

  • Compatible Capacity for slurry circulation.

• Control panel comprising of Standard make On/off switch, Mains Indicator etc.

• The whole set-up is well designed and arranged in a good quality painted structure.