STP Plants

The term "sewage treatment plant" (STP) (or "sewage treatment works" in some countries) is nowadays often replaced with the term wastewater treatment plant (WWTP). Strictly speaking, the latter is a broader term that can also refer to industrial wastewater.

Sewage treatment plants process and treat wastewater/sewage, breaking it down into a cleaner 'effluent' that can be returned back to nature in a safer, eco-friendly form. They help restore groundwater balance, curb diseases and stop degradation and pollution of the environment.