Sewage Treatment Plants
At Drain Care & Repair we specialise and offer a wide range of package sewage treatment plants which are rapidly replacing septic tanks as a much more environmentally responsible and long-term solution. That’s because sewage treatment plants actively harness natural processes, such as aerobic bacterial digestion, to help break down and neutralise sewage.
Today’s treatment plants are compact and extremely efficient, and come in sizes suited to anything from a large commercial development to a single household.
Drain Care & Repair's 
expertise in installing and commissioning sewage treatment plants is unrivaled.
How they work
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 maximizes 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.