Clarifiers are extensively used to remove settled solids through the centrally located solids pocket in both primary and secondary treatment.
Primary clarifiers are used in the primary treatment section wherein the removal of suspended solids, heavy metallic sludge as in metal/ mineral benefaction units etc is the primary concern. Secondary clarifiers are installed in bio sludge separation units and are not provided with scum separators.
Paramount Limited makes clarifier mechanism which is suitable for installation either in RCC/ Steel tank. The recommended slope is 1:12 at the bottom of the clarifier tank for efficient removal of sludge. The sludge is scrapped from the bottom of the tank by rotating scrapper arm. Primary clarifiers are inbuilt with floating scum separation box and skimmers. The skimmers gently skim the liquid to surface attached to a rotating skimmer arm.
The following models are available.
| 1 |
Central driven, bridge supported mechanism |
| 2 |
Cage driven (Type C) clarifier mechanism |
| 3 |
Peripheral driven clarifier mechanism |
