Wastewater Screening
Wastewater Screening is the first unit operation in all wastewater treatment plants. Screen is the device used to retain solids found in the influent wastewater to the treatment plant. The main purpose of screening is to remove solid materials that could:
- Cause damage to other process equipment.
- Cause reduction in the efficiency of the whole system
- Contaminate waterways
The materials that are removed using screens are called screenings.