Sewage Treatment Plant Installation & Maintenance.

Off-Mains Wastewater Specialists

A Complete Wastewater Treatment Solution for Properties Away From the Mains Sewer.

Where a property cannot connect conveniently to the public sewer network, a sewage treatment plant can provide an effective way of treating wastewater on site.

KD Drainage installs treatment plants for both domestic and commercial customers and considers the property, expected occupancy, ground conditions and intended discharge arrangement before recommending a system.

Our service can include excavation, delivery, installation, associated pipework, electrical connection and commissioning, followed by recommendations for future maintenance.

Where a simpler private drainage system may be suitable, we can also discuss septic tank installation.

What Is a Sewage Treatment Plant?

On-Site Treatment Rather Than Simple Wastewater Storage.

A sewage treatment plant is a self-contained underground wastewater treatment system designed for properties that are not served by conventional mains drainage.

Wastewater from toilets, bathrooms, kitchens and other plumbing enters the plant, where solids and liquids are separated before biological treatment takes place.

Unlike a simple holding tank, the plant actively treats the wastewater before the treated effluent leaves the system through the appropriate discharge arrangement.

The exact plant and discharge arrangement need to suit the property, ground conditions and applicable environmental requirements.

Who Needs a Treatment Plant?

Designed for Properties Outside the Main Sewer Network.

Treatment plants are commonly used at rural homes, farms, estates, commercial sites and other properties where connection to the public sewer is unavailable or impractical.

They allow wastewater to be treated at the property rather than requiring a long or complex new connection to the mains drainage network.

They can also be considered when an older private wastewater system needs replacing or upgrading.

Where you are unsure whether a treatment plant or septic tank is more suitable, KD can assess the site and discuss the options.

Treatment Plant or Septic Tank?

Two Private Drainage Systems With an Important Difference.

Both systems receive wastewater from properties that are not connected directly to the public sewer, but they treat that wastewater differently.

A septic tank primarily relies on settlement and natural biological activity before liquid passes onwards through the drainage system.

A sewage treatment plant adds an active treatment stage, commonly using aeration, to produce more highly treated effluent.

The trade-off is that treatment plants contain mechanical and electrical equipment and therefore require regular servicing. See our septic tank installation page for the alternative system.

Servicing & Maintenance

Mechanical Treatment Equipment Needs Ongoing Care.

Unlike a simple passive tank, sewage treatment plants contain components such as air pumps and other mechanical or electrical equipment.

Routine servicing can help identify wear, electrical faults, aeration issues and other developing problems before they affect the treatment process.

Solid material also accumulates inside the system and will require periodic removal as part of ongoing maintenance.

KD can provide maintenance support alongside wider drain maintenance and wastewater services.

Sewage Treatment Plants

Planning a New or Replacement Treatment Plant?

KD Drainage can assess the property, expected wastewater load and site conditions before recommending a suitable off-mains treatment solution.

Our team supports both domestic and commercial installations and can continue looking after the system with servicing and repairs once installed.

Speak to us before selecting a plant so the complete wastewater arrangement can be considered properly.