Sewage Treatment: How it Works
The compact, below-ground sewage treatment plant depicted in this cutaway illustration is a watertight enclosure designed to allow solids in the sewage to settle and decompose via an aerobic (oxygen-assisted) biological action.
- Coarse solids are screened out and retained for gradual breakdown.
- The screened ‘liquor’ is continuously distributed over plastic media by an airlift pump operated by an electric blower sited a little distance away. This maximises the natural aerobic process.
- Subject to relevant official consents, the resulting effluent, which is remarkably clean, can be dispersed into a watercourse or suitable ground soakaway,
Sewage treatment plants are typically of GRP (glass-reinforced plastic) construction. The Drain Experts use fully certified systems from Titan and Klargester — the UK’s leading suppliers of wastewater treatment systems.
