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BIOROCK Independent Test Results

Effluent Quality of BIOROCK sewage treatment units

The effluent from a sewage treatment unit is measured in terms of the Biological Oxygen Demand (BOD), the Suspended Solids (SS) and the Ammonia (NH3).  It is expressed in the form BOD:SS:NH3 and is measured in mg/L

The Royal Commission Standard for effluent quality from sewage treatment units in the UK is 20:30:20 (BOD:SS:NH3).  To understand these figures, septic tank effluent is around 120 :180 :80  and distilled water is 0:0:0, so obviously, the lower the figures the better the quality.
           
Performance of BIOROCK sewage treatment units
 
The BIOROCK sewage treatment unit has been tested to EN12566-3 2005 and the EN12566-7 2006 standard in the EU testing facility PIA in Aachen, Germany.
 
The table below summarises the results from the extensive 38 weeks independent EN testing on the BIOROCK 6 sewage treatment units. Essentially the independent testing showed that the BIOROCK sewage treatment unit produces a very high quality secondary effluent, far better than almost all aquatic systems. 
 
When tested at The EN Test Centre, the BIOROCK consistently produced an effluent quality (in mg/L) of (BOD:SS:NH3) > 8:8:9
 
 
Given normal use, BIOROCK sewage treatment units exceeded normal UK standards of "20BOD:30S.S." by four times.
 
The BIOROCK sewage treatment unit also normally achieves between 1000 to 10,000 times reduction in Thermotolerant Coliform bacteria
 
EN 12566-3 2005 Summary of the Test Results from Aachen using SINGLE CHAMBER Settlement Tank
Parameter
Results inc. shock and overloading tests
Average
BOD5
 
100% less than 20 mg/L
 
7.9mg/L
Suspended Solids
 
100% less than 15 mg/L
 
7.7mg/L
Ammonia (NH3)
 
100% less than 20mg/L
 
8.8mg/L
 

The BIOROCK stayed within the UK 20:30:20 standard 100% of the time

For even cleaner effluent standards, the BIOROCK has just completed EN testing again using two stage septic tanks as the settlement tank.

EN 12566-3 2005 Summary of the Latest Test Results from Aachen using a TWO CHAMBER Septic Tank as a Settlement Tank
Parameter
Results inc. shock and overloading tests
Average
BOD5
 
100% less than 7 mg/L
 
3.5mg/L
Suspended Solids
 
100% less than 11 mg/L
 
2.9mg/L
Ammonia (NH3)
 
100% less than 9 mg/L
 
2.7mg/L
 
Full EN test results are available on request
BEFORE you order a rival sewage treatment system, ask the manufacturer for their EN 12566-3 2005 actual test results and compare them with the BIOROCK.
 
BIOROCK sewage treatment units are cleared for sale in the UK as they have the EN12566-3 2005.  This more than satisfies the Environment Agency and Building Control requirements.

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