Sewage treatment system installed
barely visible above ground
Biorock sewage treatment plant
With pump
Biorock sewage treatment plant
Without pump, no electricity needed

BIOROCK, the best residential wastewater treatment system without electricity, zero energy. 25 years warranty!

BIOROCK, the best

Revolutionary technology

  • No electricity required
  • No moving parts
  • 24 hour start-up
  • Long absence periods acceptable

Unique advantages

  • Completely silent
  • Lowest operational costs
  • Superb effluent quality
  • Septic tank conversion unit (retrofit)


  • Long lifespan BIOROCK® Media
  • Low carbon footprint
  • Minimum annual maintenance
  • Long de-sludge interval

Superb Strength!!

All the BIOROCK® units and Primary Tanks are designed and manufactured to suit all ground conditions including high ground water.

BIOROCK® Non-Electric Septic Tank Conversion Unit: Our compact wastewater treatment system uses no electricity for the treatment process and can be added to an existing septic tank.

BIOROCK products

NON-ELECTRICAL Aerobic Wastewater Treatment Units

NON-ELECTRICAL Aerobic Wastwater Treatment Units for domestic and commercial waste water

The revolutionary and fool-proof BIOROCK® septic units use a biological process and is gravity fed, requiring no electricity. As a result of this, maintenance and operational costs are extremely low, and reliability is maximized. The durable HDPE tanks are produced and assembled at our Luxembourg production plant. The units are supplied as a complete package for ease of installation.

BIOROCK offers two product lines:


The BIOROCK® septic systems are a range (4 x models) of compact packaged wastewater treatment plants. The capacity depends on the required effluent quality. If installed in parallel they can also cater for up to 300 people.

BIOROCK Container Series:

The BIOROCK®-Container series is a medium sized packaged aerobic wastewater treatment units capable of handling sewage loads from between 250 and up to 600 people. If installed in parallel they can also cater for larger capacities.

Traditional versus BIOROCK

BIOROCK provides a revolutionary and efficient system when compared with many of the other wastewater treatment plants available today. The superb results produced by BIOROCK plants have placed our systems in a leading position when compared with older & traditional techniques - such as Activated Sludge, SBR, and so on. So many systems on the market are characterized by their energy consumption, high maintenance costs, significant operational costs and a high volume sludge production which leads to frequent de-sludging.