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BIOROCK®, the best residential compact onsite 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 aerobic wastewater treatment system uses no electricity for the treatment process and can be added to an existing septic tank.

BIOROCK products

Energy-free Residential Compact Aerobic Wastewater Treatment Units

BIOROCK was established in 1988 and is now an internationally acclaimed and experienced company leading in (compact) sewage / waste water treatment technology.


Non-electric Residential Aerobic Wastwater Treatment Units for domestic and commercial waste water

The revolutionary and "fool-proof" BIOROCK septic systems use a biological process and are 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 BIOROCK residential onsite wastewater treatment systems are supplied as a complete package for ease of installation.

BIOROCK offers two product lines:


The ECOROCK 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 unit capable of handling sewage loads from between 250 and up to 600 people. If installed in parallel it can also cater for larger capacities.

Traditional versus BIOROCK

BIOROCK provides a revolutionary and efficient system when compared with many of the other onsite residential wastewater treatment plants available today. The superb results produced by BIOROCK aerated treatment units have placed our systems in a leading position when compared with electric techniques - such as Activated Sludge, SBR, and so on.

BIOROCK offers a much more efficient and ecological wastewater treatment technique compared to traditional techniques that are very high in maintenance and energy consumption.