The present set-up is designed to conduct the coagulation and flocculation test in the laboratory. These test are called as “Jar Test” which are routinely performed by the water treatment operators in the industry. This test indicates the optimum chemical dosages for removal of turbidity and colour present in water. It also indicates such auxiliary fact regarding pH adjustments and necessity for the supplemental use of activated carbon.

This “Jar Tests” can also be used in conjunction with other tests to study basic processes i.e. the kinetics of reaction and the removal of trace constituents from aqueous solution.

The laboratory scale unit of Flocculation test unit consists of 6 Nos. of Glass Flocculating vessels. These are provided on a translucent base which is illuminated from bottom by a florescent lamp, fitted with a reflector.. Each vessel is provided with a separate stirrer. A Paddle type SS Impeller is fixed on the stirrer shaft and the speed of the impellers can be regulated with the provided speed controller. All stirrers are driven with one motor. This paddle assembly can be easily removed for the cleaning purpose.

EXPERIMENTATIONS:

• To determine the optimum coagulant dosage.

• To determine the optimum pH.

• To determine the effect of mixing time and intensity on aggregation.

• To study the coagulation tests in conjunction with activated carbon.

UTILITIES REQUIRED:

• Electricity Supply

  • 1 Phase, 220 V AC.

• Water supply.

• Table for set-up support

TECHNICAL DETAILS:

• Flocculation Vessels

  • Material

    • Borosilicate Glass

  • Capacity

    • 1 Ltrs.

  • Quantity

    • 6 Nos.

• Stirrer

  • SS Shaft and impeller, 300 RPM (max).

• Impellers

  • Paddle Type, 50 mm x 15 mm, Removable (6 Nos.)

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

• The whole set-up is mounted on a powder coated base plate.