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BIOROCK®, the best domestic sewage treatment 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 plant uses no electricity for the treatment process and can be added to an existing septic tank.

BIOROCK® products

NON-ELECTRICAL Sewage Treatment Plants

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


NON-ELECTRICAL Sewage Treatment Plants 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:

BIOROCK® Series:

The BIOROCK® septic systems are a range (4 x models) of compact packaged sewage 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 sewage treatment plant 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 sewage 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.