An average of over 1,600 litres per day of raw sewage, with BOD of between 200 and 300 mg/L, was pumped through the system during testing of Model Ultra 10. The average daily loading of raw sewage during testing was 1,600 litres for Model ST8 and 2,000 litres for ST10. The average BOD for the single tanks was 183.3 mg/L. The minimum BOD influent required by NSWHD is 150 mg/L. All UltraClear systems consistently achieved far in excess of the required results during testing. UltraClear has been proven to remove over 98% of suspended solids, with removal of harmful micro organisms. UltraClear was able to achieve these results, whilst maintaining a low chlorine residual, reducing the impact on your environment. This ensures that the water irrigated onto your property is clear and safe.
Reduction in Nitrogen Levels for Environmentally
Sensitive Area
During the testing of the Ultra Clear AWTS the treated effluent was tested for total N (TN) concentrations. The treatment process has the capacity to reduce the total N concentration, as noted by NSW Health on our Certificate of Accreditation.
Testing of Models ST8 and ST10 were conducted at the Moss Vale Sewage Treatment Plant under the provisions of the NSW Health Department AWTS Accreditation Guideline and AS/NZS 1546.3:2001 from January to June 2003. The testing program was monitored by SAI Global and samples taken by NATA registered laboratory Ecowise Environmental Ltd. Test averages are from the official test reports as provided to the NSW Health Department.
Model ST8 – 8 person single tank system
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CHARACTERISTIC
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NSWHD maximum permitted
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ST8 test average
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BOD 5
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20 mg/L
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6.52 mg/L
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Faecal Coliforms
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30 cfu/ml
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median – 0 cfu/100ml
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Suspended Solids
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30 mg/L
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2.42 mg/L
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Free Residual Chlorine
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0.2 – 2.0 mg/L
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0.85 mg/L
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NSWHD minimum requirement
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Dissolved Oxygen
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2 mg/L
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5.96 mg/L
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- Biochemical Oxygen Demand (BOD) BOD measures the amount of organic matter in effluent. The lower the test result the cleaner the water.
- Suspended solids measure solid particles in the water.
- Free Residual Chlorine measures the amount of free chlorine remaining in the water prior to irrigation. The lower the reading, with a low faecal coliform reading, the more efficient the system.
- Faecal coliforms measure the amount of harmful pathogens in the water. Ultra Clear achieved almost total elimination of harmful pathogens with an average reading of 0.1 cfu/ml. The lower the reading, the clearer and cleaner the irrigated water.
- Dissolved Oxygen measures the amount of oxygen diffused into the water by the air pump. The higher the reading, the more efficient the method of air diffusion.
Testing of Models ST8 and ST10 were conducted at the Moss Vale Sewage Treatment Plant under the provisions of the NSW Health Department AWTS Accreditation Guideline and AS/NZS 1546.3:2001 from January to June 2003. The testing program was monitored by SAI Global and samples taken by NATA registered laboratory Ecowise Environmental Ltd. Test averages are from the official test reports as provided to the NSW Health Department.
Model ST10 – 10 person single tank system
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CHARACTERISTIC
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NSWHD maximum permitted
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ST10 test average
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BOD 5
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20 mg/L
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6.60 mg/L
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Faecal Coliforms
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30 cfu/ml
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median – 0 cfu/100ml
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Suspended Solids
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30 mg/L
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3.98 mg/L
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Free Residual Chlorine
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0.2 – 2.0 mg/L
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0.43 mg/L
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NSWHD minimum requirement
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Dissolved Oxygen
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2 mg/L
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5.50 mg/L
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- Biochemical Oxygen Demand (BOD) BOD measures the amount of organic matter in effluent. The lower the test result the cleaner the water.
- Suspended solids measure solid particles in the water.
- Free Residual Chlorine measures the amount of free chlorine remaining in the water prior to irrigation. The lower the reading, with a low faecal coliform reading, the more efficient the system.
- Faecal coliforms measure the amount of harmful pathogens in the water. Ultra Clear achieved almost total elimination of harmful pathogens with an average reading of 0.1 cfu/ml. The lower the reading, the clearer and cleaner the irrigated water.
- Dissolved Oxygen measures the amount of oxygen diffused into the water by the air pump. The higher the reading, the more efficient the method of air diffusion.