Ozone - Disc Filters for Effluent Treatment Plants (ETP)

How ORAIPL Disc Filters Work

The ORAIPL Disc Filter operates on a simple yet highly efficient principle of outside-to-inside filtration combined with automatic backwashing for uninterrupted performance.

1. Filtration Phase

   Wastewater flows from the outer surface of a stack of fiber-media discs mounted on a central shaft. Each disc is separated by spacers to allow uniform flow through the filter media.
   As the water passes through the fine fiber cloth, suspended solids are trapped on the outer surface, while the clean filtrate collects in the central drum and exits through the outlet.

2. Automatic Cleaning (Backwash) Phase

   Over time, as solids accumulate, the water level inside the tank rises. This triggers the level sensor, activating both the disc rotation mechanism and backwash suction system.

   During this stage, powerful vacuum nozzles draw out trapped impurities, transferring them to the sludge management system.
   The process is continuous—while one section of the discs is being cleaned, the remaining discs continue filtration—maintaining steady flow and efficiency.

3. Cycle Repetition

   Once cleaning is complete and the water level drops back to normal, the system automatically resumes its filtration cycle—ensuring 24×7 operation with minimal human intervention.