INDION HIGH RATE SOLIDS CONTACT CLARIFIER

PRODUCT DESCRIPTION:

High rate solids contact clarifier (HRSCC) is widely used for clarification of raw water and wastewater. The equipment incorporates the design of inbuilt internal solids recirculation, thereby optimising the chemical consumption and making it more economical than conventional clarifiers.

WORKING PRINCIPLE:

Raw water/ waste water enter the central draft tube above the re-circulation impeller where it is mixed with treatment chemicals & re-circulated sludge. The sludge re-circulation is accomplished by the impeller in a draft tube which acts as a pump.

The mixture of the raw water and sludge rises through the draft tube and enters into flocculation zone.

With gentle hydraulic turbulence, mixture flows from flocculation zone to clarification zone.

Part of the water equivalent to the instantaneous influent flow rate, enters the clarification zone and rises towards the uniform clarified water collector of HRSCC.

Settled precipitate (sludge) is moved continuously along the floor towards central sludge pit by rotating scrappers where it is further concentrated by thickening pickets.

Excess sludge build up in the central pit is discarded by means of sludge discharge valve either by manual or automatic operation.

FEATURES:

• Flash mixer, flocculation and thickener mechanism are inbuilt
• Intimate and prolonged contact with large quantities of previously formed floc which act as seed or nuclei
• Positive uniform recirculation upto 15 times of inlet flow
• Inbuilt thickening pickets concentrate the settled sludge

APPLICATIONS:

• Clarification of surface water
• Lime soda softening
• Removal of colloidal silica
• Colour removal
• White water recycling
• Primary treatment of wastewater
• Removal of heavy metals in the chemical and automobile industries