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  • Transport of the Sewage treatment plant
  • Preparing the installation site for the wastewater treatment plant
  • Installation of the Sewage treatment plant
  • BIOROCK<sup>®</sup> Sewage treatment plant
  • Filling the installation site with soil
  • Septic tank conversion unit

BIOROCK®, the best compact sewage treatment without electricity, zero energy. 15 years warranty!


The original!

Revolutionary technology

  • Septic tank easy upgrade
  • Non-electrical sewage treatment process
  • Very light maintenance
  • 24 Hour start-up period
  • Long absence periods acceptable

Unique advantages

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


  • Low carbon footprint
  • Minimum annual maintenance
  • Long desludge interval

When buying a sewage treatment plant, go for a BIOROCK! The low-maintenance, non-electrical (*) waste water treatment plant.

(*) BIOROCK® systems only needs a small, easy to exchange pump to reuse the treated effluent if needed.

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

Sewage Treatment Plant

BIOROCK® offers a complete range of compact packaged, non-electrical waste water treatment plants, denominated into 5, 10 & 15 person systems. If installed in parallel the treatment units can also cater for 30, 45, 60 people and so on. BIOROCK® non-electrical sewage treatment plants offers an ideal solution for domestic waste water treatment.

The BIOROCK® system consists of a separate settlement tank, which can be an existing traditional brick or concrete septic tank, followed by the BIOROCK® sewage treatment plant.

The costs-saving domestic treatment unit

The BIOROCK® non-electrical sewage treatment plant will save you between £300-£700 and over 0.5 tonnes CO2 emissions every year for 5 person plants when compared to the current UK market leading Sewage Treatment Systems. BIOROCK® prices are no more than that of Biodisc systems.

The best final effluent testing results

BIOROCK® sewage treatment plants clean the sewage to an astonishing level of purity. They achieved a final effluent with a 99% reduction in pollutants during the EN 12566-3 test period when following a 2 stage settlement tank. This is a lot cleaner than the leading UK electric sewage treatment plant that sells for the same price. BIOROCK® units can be used anywhare where no water treatment works is available.

BIOROCK® sewage treatment solutions

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ISO 9001

ISO 9001 We are proud to announce that since february 2012 we are certified ISO 9001.
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