
what’s happening to your domestic wastewater?
advances in wastewater treatment
Water is the most common substance on Planet Earth, researchers tell us, but only 2,5% of it is fresh (not salty). And of that minimal resource, two-thirds is locked up in the polar ice caps and thus inaccessible to humans. Strategists warn that, in contrast to past and present times when nations went to war over resources like gold and oil, now there is a growing risk of war over water, “Who owns the rights to a given river basin?”, because their very survival depends upon it.
With increasing populations demanding evermore water for enhanced lifestyles, many countries, not only poor and arid ones, but even prosperous and well-watered countries, are seriously considering recycling their waste water to provide for human consumption, agricultural and industrial use.
introduction to biorock
BIOROCK, an industry leader in compact wastewater treatment technology, was established in 1988 and is an internationally acclaimed and experienced company represented in over 75 countries. BIOROCK presently manufactures the Ecorock and Monoblock system in their ISO-accredited rotomoulding and assembly facility in Luxembourg.
“Over the past 20 years, we have successfully completed a matrix of different solutions to our clients wastewater treatment and recycling needs. This has placed us at the forefront of the wastewater solutions market around the world.” – Gerrit Smit, BIOROCK President.
why use a biorock system
- Problematic septic tanks and French drains (soak-aways) causing headaches and costing R1,000’s to service.
- High ongoing costs and inconvenience associated with owning a conservancy tank
- Legislative requirement requires treatment of sewage on-site before disposal
- Ecologically sensitive environments such as nature reserves necessitate environmental preservation
- Water shortages require wastewater recycling for irrigation use
next generation wastewater treatment technology
BIOROCK uses a material with huge surface area which allows colonisation of the necessary bacteria, a process which is essential for the effective treatment of wastewater.
The media from BIOROCK is highly resistant to degradation and remains extremely stable over the long term – their 25 years’ experience in the industry being proof of this:
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- Very stable inorganic material which does not break down over time, unlike organic media
- Requires little maintenance – scraping and scarification is not necessary, unlike for organic media
Exceptional purification results. The structure and composition ensures unsurpassed and unique surface treatment - Ecologically-friendly, recyclable material
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peace of mind
BIOROCK offers class leading reliability with assurance of international certifications and an unrivalled warranty
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The system and process internationally certified by Agrement, Certipro, PIA, DIBt, CE, KIWA and AS/NZS
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Manufactured in an ISO9001 certified facility and standards
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25-year tank warranty and 10-year media warranty
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Long lifespan media

convenience
BIOROCK provides simple, flexible installation options and hassle free operation in a variety of conditions
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Can be retrofitted to an existing septic tank
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Tolerant of household cleaners
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Minimal sludge production and long desludge intervals
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Minimum annual maintenance
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Quick and easy to install
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Can tolerate long absence periods

cost savings
BIOROCK reduces capital outlay and minimises running and maintenance costs
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Low operational costs
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No electricity required
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No blower or air diffusers

environmentally sound
BIOROCK reduces capital outlay and minimises running and maintenance costs
- Low operational costs
- No electricity required
- No blower or air diffusers
how does it work?
stage 1: septic tank
The raw sewage enters the primary tank to provide separation, and the break down of organic solids. This process is also known as Primary Treatment. The sewage then passes through an effluent filter before discharging into the Biorock unit.
stage 2: biorock treatment unit
The BIOROCK utilises the well-proven aerobic digestion process (Secondary Treatment) and filtration process (Tertiary Treatment). The Biorock is gravity fed, uses a biological process, is very compact and free from any blower or air diffusors. They don’t need electricity for the treatment process, leading to minimal maintenance and repair costs, the lowest operational costs and the longest desludge intervals of any system on the market.
stage 3: disinfection
Once biologically treated, the water must be disinfected to remove harmful organisms. This is commonly achieved by UV, Ozone or Chlorine.

technical information
MONOBLOCK (A)
Capacity | 6PE / 9000l/d |
Length | 2,790mm |
Width | 1,200mm |
Height | 2,000mm |
Weight | 385kg |
Recommended Minimum Primary Tank Capacity | 2,000l |
Inlet below NGL (mm) | <600mm |
ECOROCK 1000 (B)
Capacity | 6PE / 9000l/d |
Length | 1,060mm |
Width | 1,200mm |
Height | 2,080mm |
Weight | 163kg |
Recommended Minimum Primary Tank Capacity | 2,500l |
Inlet below NGL (mm) | <640mm |
ECOROCK 1500 (C)
Capacity | 8PE / 1,200l/d |
Length | 1,150mm |
Width | 1,150mm |
Height | 1,965mm |
Weight | 197kg |
Recommended Minimum Primary Tank Capacity | 4,000l |
Inlet below NGL (mm) | <610mm |
ECOROCK 2000 (D)
Capacity | 10PE / 1,500l/d |
Length | 1,450mm |
Width | 1,150mm |
Height | 1,965mm |
Weight | 241kg |
Recommended Minimum Primary Tank Capacity | 5,000l |
Inlet below NGL (mm) | <610mm |
ECOROCK 3000 (E)
Capacity | 15PE / 2,500l/d |
Length | 2,150mm |
Width | 1,150mm |
Height | 1,965mm |
Weight | 304kg |
Recommended Minimum Primary Tank Capacity | 6,000l |
Inlet below NGL (mm) | <610mm |
ECOROCK 5010 (F)
Capacity | 30PE / 4,500l/d |
Length | 3,800mm |
Width | 1,150mm |
Height | 2,280mm |
Weight | 682kg |
Recommended Minimum Primary Tank Capacity | 12,000l |
Inlet below NGL (mm) | <610mm |
contact us
Tel: +27 (12) 947-9793
Email: hello@metsitec.co.za
Address:
Unit B1, The Point Business
Park, 23 Sterling Road, Samrand,
Centurion, 0187