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Advanced secondary with nutrient removal |
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For effluent that is to be of advanced secondary with nutrient removal quality it shall meet the following effluent compliance characteristics:
- 90% of samples taken over the test period shall have a BOD5 less than or equal to 10g/m3 with no sample greater than 20g/m3.
- 90% of samples taken over the test period shall have total suspended solids less than or equal to 10 g/m3 with no sample greater than 20 g/m3.
- Where disinfection is provided, 90% of the samples taken over the test period shall have a thermotolerant coliform count (determined by either the most probably number of emebrane filter technique) not exceeding 10 organisms per 100ml with no sample exceeding 200 organisms per 100ml.
- Where cholorination is the disinfection process, the total cholrine concentration shall be greater than or equal to 0.5g/m3 and less than 2.0g/m3 in four out of five samples taken.
- 90% of the samples, with 95% confidence limits taken over the test period shall have a total nitrogen concentration less than or equal to 10mg/l.
- 90% of the samples, with 95% confidence limits taken over the test periods shall have a total phosophorus concentration less than or equal to 5mg/l.
Approved facilities
Bushwater Pty Ltd
For further information phone 1300 736 130 or +61 7 5472 8875.
Ecomax Waste Management Systems Pty Ltd
For further information visit www.ecomax.com.au or phone +61 8 9455 3366.
More informationFor more information about on-site sewerage, see our On-Site Sewerage page, email Building Codes Queensland, or phone 07 3237 1714.
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Last Updated ( Friday, 28 March 2008 )
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